10-Q

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                              to                             

Commission file number 0-14719

SKYWEST, INC.

Incorporated under the laws of Utah	87-0292166
	(I.R.S. Employer ID No.)

444 South River Road

St. George, Utah 84790

(435) 634-3000

(Address of principal executive offices and telephone number)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading Symbol(s)	Name of Each Exchange on which Registered
Common Stock, No Par Value	SKYW	The Nasdaq Global Select Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ⌧ No ◻

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ⌧ No ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer ⌧	Accelerated filer ◻
Non-accelerated filer ◻	Smaller reporting company ☐
Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ⌧

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

Class	Outstanding at October 29, 2021
Common stock, no par value	50,379,923

SKYWEST, INC.

QUARTERLY REPORT ON FORM 10-Q

TABLE OF CONTENTS

PART I	FINANCIAL INFORMATION:
	Item 1.	Financial Statements	3
		Consolidated Balance Sheets	3
		Consolidated Statements of Comprehensive Income	5
		Consolidated Statements of Stockholders Equity	6
		Condensed Consolidated Statements of Cash Flows	8
		Notes to Condensed Consolidated Financial Statements	9
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	23
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	40
	Item 4.	Controls and Procedures	40
PART II	OTHER INFORMATION:
	Item 1.	Legal Proceedings	41
	Item 1A.	Risk Factors	41
	Item 6.	Exhibits	41
		Signature	42
Exhibit 31.1	Certification of Chief Executive Officer
Exhibit 31.2	Certification of Chief Financial Officer
Exhibit 32.1	Certification of Chief Executive Officer
Exhibit 32.2	Certification of Chief Financial Officer

2

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Dollars in Thousands)

ASSETS

	September 30,		December 31,
	2021		2020
	(unaudited)
CURRENT ASSETS:
Cash and cash equivalents	$	271,831	$	215,723
Marketable securities		640,673		610,185
Receivables, net		56,320		34,462
Inventories, net		98,763		91,196
Other current assets		29,080		31,236
Total current assets		1,096,667		982,802
PROPERTY AND EQUIPMENT:
Aircraft and rotable spares		7,529,226		7,527,555
Deposits on aircraft		121,293		31,625
Buildings and ground equipment		256,348		258,863
Total property and equipment, gross		7,906,867		7,818,043
Less-accumulated depreciation and amortization		(2,621,410)		(2,455,995)
Total property and equipment, net		5,285,457		5,362,048
OTHER ASSETS:
Operating lease right-of-use assets		248,576		282,362
Long-term receivables and other assets		309,802		260,410
Total other assets		558,378		542,772
Total assets	$	6,940,502	$	6,887,622

See accompanying notes to condensed consolidated financial statements.

3

SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Dollars in Thousands)

LIABILITIES AND STOCKHOLDERS’ EQUITY

	September 30,		December 31,
	2021		2020
	(unaudited)
CURRENT LIABILITIES:
Current maturities of long-term debt	$	359,888	$	402,158
Accounts payable		427,903		278,677
Accrued salaries, wages and benefits		146,947		125,944
Current maturities of operating lease liabilities		78,188		82,641
Taxes other than income taxes		30,333		26,183
Other current liabilities		94,496		26,119
Total current liabilities		1,137,755		941,722
LONG-TERM DEBT, net of current maturities		2,605,063		2,801,538
DEFERRED INCOME TAXES PAYABLE		657,067		625,931
NONCURRENT OPERATING LEASE LIABILITIES		171,443		205,845
OTHER LONG-TERM LIABILITIES		107,367		173,041
COMMITMENTS AND CONTINGENCIES (Note 7)
STOCKHOLDERS’ EQUITY:
Preferred stock, 5,000,000 shares authorized; none issued		—		—
Common stock, no par value, 120,000,000 shares authorized; 82,335,782 and 82,094,985 shares issued as of September 30, 2021, and December 31, 2020, respectively		720,932		704,675
Retained earnings		2,159,584		2,052,006
Treasury stock, at cost, 31,955,991 and 31,913,635 shares as of September 30, 2021, and December 31, 2020, respectively		(618,709)		(617,136)
Total stockholders’ equity		2,261,807		2,139,545
Total liabilities and stockholders’ equity	$	6,940,502	$	6,887,622

See accompanying notes to condensed consolidated financial statements.

4

SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(UNAUDITED)

(Dollars and Shares in Thousands, Except per Share Amounts)

	Three months ended				Nine months ended
	September 30,				September 30,
	2021		2020		2021		2020
OPERATING REVENUES:
Flying agreements	$	719,084	$	445,048	$	1,863,242	$	1,490,912
Lease, airport services and other		25,699		12,445		73,086		46,557
Total operating revenues		744,783		457,493		1,936,328		1,537,469
OPERATING EXPENSES:
Salaries, wages and benefits		265,603		194,516		718,868		613,895
Aircraft maintenance, materials and repairs		209,795		150,148		604,501		431,654
Depreciation and amortization		109,597		121,467		329,089		364,813
Airport-related expenses		25,992		18,003		72,478		70,192
Aircraft fuel		32,561		13,641		77,622		45,875
Aircraft rentals		16,098		15,785		47,311		49,537
Special items - impairment charges		84,592		—		84,592		—
Payroll support grant		(115,352)		(190,200)		(422,669)		(342,138)
Other operating expenses		68,847		59,580		181,621		167,170
Total operating expenses		697,733		382,940		1,693,413		1,400,998
OPERATING INCOME		47,050		74,553		242,915		136,471
OTHER INCOME (EXPENSE):
Interest income		238		1,403		732		5,652
Interest expense		(28,980)		(30,150)		(94,274)		(91,280)
Other income (expense), net		(4,098)		405		(3,802)		1,205
Total other expense, net		(32,840)		(28,342)		(97,344)		(84,423)
INCOME BEFORE INCOME TAXES		14,210		46,211		145,571		52,048
PROVISION FOR INCOME TAXES		4,526		12,549		37,993		14,113
NET INCOME	$	9,684	$	33,662	$	107,578	$	37,935
BASIC EARNINGS PER SHARE	$	0.19	$	0.67	$	2.14	$	0.76
DILUTED EARNINGS PER SHARE	$	0.19	$	0.66	$	2.12	$	0.75
Weighted average common shares:
Basic		50,380		50,181		50,337		50,199
Diluted		50,725		50,622		50,726		50,445
COMPREHENSIVE INCOME:
Net income	$	9,684	$	33,662	$	107,578	$	37,935
Net unrealized depreciation on marketable securities, net of taxes		—		(307)		—		—
TOTAL COMPREHENSIVE INCOME	$	9,684	$	33,355	$	107,578	$	37,935

See accompanying notes to condensed consolidated financial statements

5

SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY

(UNAUDITED)

(In Thousands)

	Common Stock			Retained		Treasury Stock
	Shares	Amount		Earnings		Shares	Amount		Total
Balance at December 31, 2020	82,095	$	704,675	$	2,052,006	(31,914)	$	(617,136)	$	2,139,545
Net income	—		—		35,900	—		—		35,900
Exercise of common stock options and vested employee stock awards	177		606		—	—		—		606
Employee income tax paid on vested equity awards	—		—		—	(42)		(1,573)		(1,573)
Sale of common stock under employee stock purchase plan	30		1,139		—	—		—		1,139
Stock based compensation expense	—		2,613		—	—		—		2,613
Warrants issued to U.S. Treasury	—		3,291		—	—		—		3,291
Balance at March 31, 2021	82,302	$	712,324	$	2,087,906	(31,956)	$	(618,709)	$	2,181,521
Net income	—		—		61,994	—		—		61,994
Stock based compensation expense	—		2,877		—	—		—		2,877
Warrants issued to U.S. Treasury	—		2,513		—	—		—		2,513
Balance at June 30, 2021	82,302	$	717,714	$	2,149,900	(31,956)	$	(618,709)	$	2,248,905
Net income	—		—		9,684	—		—		9,684
Sale of common stock under employee stock purchase plan	34		1,401		—	—		—		1,401
Stock based compensation expense	—		1,817		—	—		—		1,817
Balance at September 30, 2021	82,336	$	720,932	$	2,159,584	(31,956)	$	(618,709)	$	2,261,807

See accompanying notes to condensed consolidated financial statements.

6

SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY

(UNAUDITED)

(In Thousands)

	Common Stock			Retained		Treasury Stock			Accumulated Other Comprehensive
	Shares	Amount		Earnings		Shares	Amount		Income		Total
Balance at December 31, 2019	81,743	$	686,806	$	2,079,179	(31,420)	$	(590,971)	$	—	$	2,175,014
Change in accounting principle and other (see Note 3)	—		—		(11,639)	—		—		—		(11,639)
Balance at December 31, 2019, as adjusted	81,743		686,806		2,067,540	(31,420)		(590,971)		—		2,163,375
Net income	—		—		29,988	—		—		—		29,988
Exercise of common stock options and vested employee stock awards	287		38		—	—		—		—		38
Employee income tax paid on vested equity awards	—		—		—	(108)		(6,165)		—		(6,165)
Sale of common stock under employee stock purchase plan	24		1,494		—	—		—		—		1,494
Stock based compensation expense	—		1,727		—	—		—		—		1,727
Treasury stock purchases	—		—		—	(386)		(20,000)		—		(20,000)
Cash dividends declared ($0.14 per share)	—		—		(7,019)	—		—		—		(7,019)
Balance at March 31, 2020	82,054	$	690,065	$	2,090,509	(31,914)	$	(617,136)	$	—	$	2,163,438
Net loss	—		—		(25,715)	—		—		—		(25,715)
Stock based compensation expense	—		2,087		—	—		—		—		2,087
Warrants issued to U.S. Treasury	—		2,845		—	—		—		—		2,845
Net unrealized appreciation on marketable securities, net of tax of $99	—		—		—	—		—		307		307
Balance at June 30, 2020	82,054	$	694,997	$	2,064,794	(31,914)	$	(617,136)	$	307	$	2,142,962
Net income	—		—		33,662	—		—		—		33,662
Sale of common stock under employee stock purchase plan	41		1,287		—	—		—		—		1,287
Stock based compensation expense	—		2,093		—	—		—		—		2,093
Warrants issued to U.S. Treasury	—		5,403		—	—		—		—		5,403
Net unrealized depreciation on marketable securities, net of tax of $(99)	—		—		—	—		—		(307)		(307)
Balance at September 30, 2020	82,095	$	703,780	$	2,098,456	(31,914)	$	(617,136)	$	—	$	2,185,100

See accompanying notes to condensed consolidated financial statements.

7

SKYWEST, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(UNAUDITED)

(In Thousands)

	Nine months ended
	September 30,
	2021		2020
NET CASH PROVIDED BY OPERATING ACTIVITIES	$	686,955	$	548,703
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of marketable securities		(1,071,637)		(848,897)
Sales of marketable securities		1,041,149		878,070
Acquisition of property and equipment:
Aircraft and rotable spare parts		(223,605)		(170,392)
Buildings and ground equipment		(10,473)		(9,398)
Proceeds from the sale of property and equipment		7,104		1,612
Deposits on aircraft		(100,105)		(625)
Aircraft deposits applied towards acquired aircraft		10,987		9,220
Increase in other assets		(50,205)		(121,037)
NET CASH USED IN INVESTING ACTIVITIES		(396,785)		(261,447)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of long-term debt		213,326		201,285
Principal payments on long-term debt		(448,466)		(117,182)
Net proceeds from issuance of common stock		3,146		2,819
Purchase of treasury stock		—		(20,000)
Employee income tax paid on vested equity awards		(1,573)		(6,165)
Payment of debt issuance cost		(495)		(3,932)
Payment of cash dividends		—		(13,059)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(234,062)		43,766
Increase in cash and cash equivalents		56,108		331,022
Cash and cash equivalents at beginning of period		215,723		87,206
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	271,831	$	418,228
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Non-cash investing and financing activities:
Acquisition of property and equipment	$	13,168	$	8,531
Warrants issued to U.S. Treasury	$	5,804	$	8,248
Cash paid during the period for:
Interest, net of capitalized amounts	$	96,397	$	95,999
Income taxes	$	6,374	$	371

See accompanying notes to condensed consolidated financial statements.

8

SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

(1) Condensed Consolidated Financial Statements

Basis of Presentation

The condensed consolidated financial statements of SkyWest, Inc. (“SkyWest” or the “Company”) and its operating subsidiary SkyWest Airlines, Inc. (“SkyWest Airlines”) and its leasing subsidiary SkyWest Leasing, Inc. (“SkyWest Leasing”) included herein have been prepared, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the following disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements reflect all adjustments that, in the opinion of management, are necessary to present fairly the results of operations for the interim periods presented. All adjustments are of a normal recurring nature, unless otherwise disclosed. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Due in part to the volatile effects from the global COVID-19 pandemic, in addition to other factors, the results of operations for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ending December 31, 2021.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates and assumptions.

(2) Impact of the COVID-19 Pandemic

COVID-19, which was declared a global health pandemic by the World Health Organization in March 2020, has had a significant, negative impact on the Company’s business and financial results beginning in March 2020 and has materially and adversely affected the Company’s revenues, particularly under its prorate agreements. The Company operated 137,493 flights during the third quarter of 2020, which increased to 210,251 flights, or 52.9%, during the third quarter of 2021. However, the Company operated 219,272 flights during the third quarter of 2019 and the Company has not returned to pre-COVID flight levels as of September 30, 2021. The rate of recovery from the impact of COVID-19 and whether such recovery will be sustained are uncertain as factors outside of the Company’s control, including the distribution and efficacy of vaccines, government-imposed vaccine mandates, new variants of the virus, and continued or new government travel restrictions, cannot be estimated.

Liquidity. At September 30, 2021, the Company had $953.5 million in total available liquidity, consisting of $912.5 million in cash and marketable securities, and $41.0 million available under SkyWest Airlines’ line of credit with a bank.

2021 Appropriations Act. In January 2021, SkyWest Airlines entered into a Payroll Support Program Extension Agreement (the “PSP Extension Agreement”) with the U.S. Department of the Treasury (“U.S. Treasury”) with respect to a payroll grant program under the Consolidated Appropriations Act, 2021 (“2021 Appropriations Act”). Pursuant to the PSP Extension Agreement, SkyWest Airlines received $268.1 million from U.S. Treasury during the nine months ended September 30, 2021.

In connection with the receipt of financial assistance under the PSP Extension Agreement, SkyWest Airlines is required to comply with the relevant provisions of the 2021 Appropriations Act, many of which are substantially similar to the requirements placed on SkyWest Airlines by the Payroll Support Program under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) that the Company entered into with U.S. Treasury in April 2020.

9

The PSP Extension Agreement payments received included $217.7 million in the form of a payroll grant and $50.4 million in the form of an unsecured 10-year loan. The loan bears interest at an annual rate of 1.00% for the first five years (through January 2026) and the Secured Overnight Financing Rate plus 2.00% in the final five years. In return, the Company issued to U.S. Treasury warrants to purchase up to 124,773 shares of the Company’s common stock. These warrants have an exercise price of $40.41 per share and a five-year term from the date of issuance.

The relative fair value of the warrants is recorded within stockholder's equity and as a discount reducing the carrying value of the loan, which will be amortized as interest expense in the Company’s income statement over the term of the loan. The proceeds of the grant were recorded in cash and cash equivalents when received and were recognized as a reduction in expense in payroll support grant in the Company’s income statement over the periods that the funds were intended to compensate. The Company recorded $217.7 million of the PSP Extension Agreement payroll grant as an offset to operating expenses for the nine months ended September 30, 2021.

American Rescue Plan Act of 2021. On April 23, 2021, SkyWest Airlines entered into a Payroll Support Program 3 Agreement (the “PSP 3 Agreement”) with U.S. Treasury with respect to a payroll grant program under the American Rescue Plan Act of 2021 (“American Rescue Plan Act”). Pursuant to the PSP 3 Agreement, SkyWest Airlines received from U.S. Treasury approximately $250.0 million during the nine months ended September 30, 2021.

In connection with the receipt of financial assistance under the PSP 3 Agreement, SkyWest Airlines is required to comply with the relevant provisions of the American Rescue Plan Act, many of which are substantially similar to the requirements placed on SkyWest Airlines by the Payroll Support Program Agreement under the CARES Act and the PSP Extension Agreement under the 2021 Appropriations Act. The relevant provisions include the requirement that the funding be used exclusively for the continuation of payment of employee wages, salaries and benefits. Similar to the previous Payroll Support Programs, SkyWest Airlines and, in some cases, the Company is also subject to certain restrictions, including, but not limited to, limitations on involuntary terminations, pay rate reductions and furloughs through September 30, 2021, restrictions on the payment of dividends and the repurchase of shares through September 30, 2022, and certain limitations on executive compensation through April 1, 2023.

The PSP 3 Agreement payments received through September 30, 2021, included $205.0 million in the form of a payroll grant and $45.0 million in the form of an unsecured 10-year loan. The loan bears interest at an annual rate of 1.00% for the first five years (through April 2026) and the Secured Overnight Financing Rate plus 2.00% in the final five years. In return, the Company issued to U.S. Treasury warrants to purchase up to 78,317 shares of the Company’s common stock. These warrants have an exercise price of $57.47 per share and a five-year term from the date of issuance.

The relative fair value of the warrants is recorded within stockholder's equity and as a discount reducing the carrying value of the loan, which will be amortized as interest expense in the Company’s income statement over the term of the loan. The proceeds of the grant were recorded in cash and cash equivalents when received and were recognized as a reduction in expense in payroll support grant in the Company’s income statement over the periods that the funds are intended to compensate. The Company recorded $205.0 million of the PSP 3 Agreement payroll grant as an offset to operating expenses for the nine months ended September 30, 2021.

As of September 30, 2021, the Company has recognized all of the payroll grants received from U.S. Treasury as an offset to operating expenses.

Treasury Secured Loan. In January 2021, the Company amended the secured loan agreement with U.S. Treasury to extend the deadline pursuant to which SkyWest Airlines could, at its discretion, borrow additional amounts under the facility from March 26, 2021, to May 28, 2021. The other terms of the secured loan agreement were not affected. On May 10, 2021, the Company repaid all amounts outstanding under the secured loan, and in connection with such repayment, terminated the secured loan agreement. The total repayment amount was $61.2 million, which included all outstanding principal and accrued interest under the secured loan. As a result of the repayment, the collateral securing the obligations of SkyWest Airlines under the loan agreement, consisting of aircraft engines and aircraft parts, was released.

10

(3) Flying Agreements Revenue and Lease, Airport Services and Other Revenues

The Company recognizes flying agreements revenue and lease, airport services and other revenues when the service is provided under the applicable agreement. Under the Company’s fixed-fee arrangements (referred to as “capacity purchase agreements”) with United Airlines, Inc. (“United”), Delta Air Lines, Inc. (“Delta”), American Airlines, Inc. (“American”) and Alaska Airlines, Inc. (“Alaska”) (each, a “major airline partner”), the major airline partner generally pays the Company a fixed-fee for each departure, flight hour (measured from takeoff to landing, excluding taxi time) or block hour (measured from takeoff to landing, including taxi time) incurred, and an amount per aircraft in service each month with additional incentives based on flight completion and on-time performance. The major airline partner also directly pays for or reimburses the Company for certain direct expenses incurred under the capacity purchase agreement, such as fuel, airport landing fees and airport rents. Under the capacity purchase agreements, the Company’s performance obligation is met when each flight is completed, measured in completed block hours, and is reflected in flying agreements revenue. The transaction price for the capacity purchase agreements is determined from the fixed-fee consideration, incentive consideration and directly reimbursed expenses earned as flights are completed over the agreement term. For the nine months ended September 30, 2021, and 2020, capacity purchase agreements represented approximately 83.9% and 86.8% of the Company’s flying agreements revenue, respectively.

Under the Company’s prorate arrangements (referred to as a “prorate” or “revenue-sharing” agreement), the major airline partner and the Company negotiate a passenger fare proration formula, pursuant to which the Company receives a percentage of the ticket revenues for those passengers traveling for one portion of their trip on a Company airline and the other portion of their trip on the major airline partner. Under the Company’s prorate flying agreements, the performance obligation is met and revenue is recognized when each flight is completed based upon the portion of the prorate passenger fare the Company anticipates that it will receive for each completed flight. The transaction price for the prorate agreements is determined from the proration formula derived from each passenger ticket amount on each completed flight over the agreement term. For the nine months ended September 30, 2021, and 2020, prorate flying agreements represented approximately 16.1% and 13.2% of the Company’s flying agreements revenue, respectively.

The following table represents the Company’s flying agreements revenue by type for the three and nine months ended September 30, 2021, and 2020 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Capacity purchase agreements revenue: flight operations	$	308,273	$	175,753	$	792,501	$	674,222
Capacity purchase agreements revenue: aircraft lease and fixed revenue		282,498		208,516		770,548		619,354
Prorate agreements revenue		128,313		60,779		300,193		197,336
Flying agreements revenue	$	719,084	$	445,048	$	1,863,242	$	1,490,912

A portion of the Company’s compensation under its capacity purchase agreements is designed to reimburse the Company for certain aircraft ownership costs. The consideration for aircraft ownership costs varies by agreement but is intended to cover either the Company’s aircraft principal and interest debt service costs, its aircraft depreciation and interest expense or its aircraft lease expense costs while the aircraft is under contract. The consideration received for the use of the aircraft under the Company’s capacity purchase agreements is reflected as lease revenue, inasmuch as the agreements identify the “right of use” of a specific type and number of aircraft over a stated period of time. The lease revenue associated with the Company’s capacity purchase agreements is accounted for as an operating lease and is reflected as flying agreements revenue on the Company’s consolidated statements of comprehensive income. The Company has not separately stated aircraft rental income and aircraft rental expense in the consolidated statement of comprehensive income since the use of the aircraft is not a separate activity of the total service provided.

Under the Company’s capacity purchase agreements, the Company is paid a fixed amount per aircraft each month over the contract term. The Company recognizes revenue attributed to the fixed monthly payments proportionate to the number of block hours completed during each reporting period, relative to the estimated number of block hours the Company anticipates completing over the remaining contract term. Due to the lower number of flights operated during the COVID-19 pandemic compared to historical levels, the amount of cash collected for the fixed amount per aircraft

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exceeded the revenue recognized based on flights completed. Accordingly, the Company deferred recognizing revenue on fixed monthly cash payments the Company received under its capacity purchase agreements from the second quarter of 2020 through the second quarter of 2021. During the three months ended September 30, 2021, the Company recognized $19.2 million of previously deferred revenue due to an increase in flight schedules compared to deferring revenue of $29.6 million during the three months ended September 30, 2020. During the nine months ended September 30, 2021, and 2020, the Company deferred revenue of $7.7 million and $98.6 million, respectively, of fixed monthly cash payments the Company received under its capacity purchase agreements. The Company’s deferred revenue balance was $118.4 million as of September 30, 2021, including $70.5 million in other current liabilities and $47.9 million in other long-term liabilities. At December 31, 2020, the Company’s deferred revenue balance of $110.7 million was included in other long-term liabilities. The Company’s deferred revenue balance will be recognized based on the number of block hours completed during each period relative to the estimated number of block hours the Company anticipates completing over the remaining contract term.

The Company’s capacity purchase and prorate agreements include weekly provisional cash payments from the respective major airline partner based on a projected level of flying each month. The Company and each major airline partner subsequently reconcile these payments to the actual completed flight activity on a monthly or quarterly basis.

As of September 30, 2021, the Company had 486 aircraft in scheduled service or under contract under code-share agreements. The following table summarizes the significant provisions of each code-share agreement SkyWest Airlines has with each major airline partner:

United Express Agreements
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
United Express Agreements (capacity purchase agreement)	• E175 • CRJ 700 • CRJ 200	90 19 70	• Individual aircraft have scheduled removal dates from 2022 to 2029
United Express Prorate Agreement (prorate agreement)	• CRJ 200	42	• Terminable with 120-day notice
Total under United Express Agreements		221

Delta Connection Agreements
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
Delta Connection Agreement (capacity purchase agreement)	• E175 • CRJ 900 • CRJ 700	71 40 5	• Individual aircraft have scheduled removal dates from 2022 to 2031
Delta Connection Prorate Agreement (prorate agreement)	• CRJ 200	29	• Terminable with 30-day notice
Total under Delta Connection Agreements		145

American Capacity Purchase Agreement
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
American Agreement (capacity purchase agreement)	• E175 • CRJ 900	6 82	• Individual aircraft have scheduled removal dates from 2024 to 2032
Total under American Agreements		88

Alaska Capacity Purchase Agreement
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
Alaska Agreement (capacity purchase agreement)	• E175	32	• Individual aircraft have scheduled removal dates in 2030

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In addition to the contractual arrangements described above, as of September 30, 2021, SkyWest Airlines has a capacity purchase agreement with American to place 14 Embraer E175 dual-class regional jet aircraft (“E175”) into service. The delivery dates for the 14 new E175 aircraft are currently scheduled for the fourth quarter of 2021 and first half of 2022 and the aircraft are expected to be placed into service in 2022. SkyWest Airlines also has an agreement with American to place 19 used Canadair CRJ700 regional jet aircraft (“CRJ700”) under a multi-year capacity purchase agreement with scheduled in service dates into 2023.

SkyWest Airlines has a capacity purchase agreement with Alaska to place nine E175 aircraft into service. The delivery dates for the nine new E175 aircraft are currently scheduled for 2022 and the first half of 2023, and the aircraft are expected to be placed into service in 2022 and 2023.

During the three months ended September 30, 2021, SkyWest Airlines reached an agreement with Delta to place 16 E175 aircraft into service under a capacity purchase agreement. The delivery dates for the 16 new E175 aircraft are currently scheduled for 2022, and the aircraft are expected to be placed into service in 2022. Under the terms of the agreement with Delta, Delta has the right to purchase the 16 E175 aircraft at the end of the contract term at a price estimated to be the fair value at the end of the contract. These 16 new E175 aircraft are expected to replace 16 CRJ900 regional jet aircraft (“CRJ900”) the Company is operating under a capacity purchase agreement with Delta (see Note 12 “Special Items – Impairment Charge,” for further discussion of the Company’s CRJ900 aircraft). Additionally, SkyWest Airlines entered into an agreement with Delta during the third quarter of 2021 to place four used CRJ900 aircraft under a short-term contract beginning in the fourth quarter of 2021.

Final delivery and in-service dates for aircraft to be placed under contract may be adjusted based on various factors.

When an aircraft is scheduled to be removed from a capacity purchase agreement, the Company may, as practical under the circumstances, negotiate an extension with the respective major airline partner, negotiate the placement of the aircraft with another major airline partner, return the aircraft to the lessor if the aircraft is leased and the lease is expiring, place owned aircraft for sale, or pursue other uses for the aircraft. Other uses for the aircraft may include placing the aircraft in a prorate agreement, leasing the aircraft to a third party or parting out the aircraft to use the engines and parts as spare inventory or to lease the engines to a third party.

The following represents the Company’s lease, airport services and other revenue for the three and nine months ended September 30, 2021, and 2020 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Operating lease revenue	$	17,746	$	7,136	$	49,154	$	27,162
Airport customer service and other revenue		7,953		5,309		23,932		19,395
Lease, airport services and other	$	25,699	$	12,445	$	73,086	$	46,557

The following table summarizes future minimum rental income under operating leases primarily related to leased aircraft and engines that had remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

October 2021 through December 2021	$	11,388
2022		45,428
2023		44,945
2024		42,530
2025		39,082
Thereafter		155,089
	$	338,462

Of the Company’s $5.3 billion of property and equipment, net as of September 30, 2021, $256.7 million of regional jet aircraft and spare engines was leased to third parties under operating leases. The Company mitigates the residual asset risks of these assets by leasing aircraft and engine types that can be operated by the Company in the event of a default. Additionally, the operating leases typically have specified lease return condition requirements paid by the

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lessee to the Company and the Company typically maintains inspection rights under the leases. Additionally, lease, airport services and other revenues includes airport agent services, such as gate and ramp agent services at applicable airports where the Company provides such services. The transaction price for airport customer service agreements is determined from an agreed-upon rate by location applied to the applicable number of flights handled by the Company over the agreement term.

The Company’s operating revenues could be impacted by several factors, including changes to the Company’s code-share agreements with its major airline partners, changes in flight schedules, contract modifications resulting from contract renegotiations, the Company’s ability to earn incentive payments contemplated under the Company’s code-share agreements and settlement of reimbursement disputes with the Company’s major airline partners.

Other ancillary revenues commonly associated with airlines, such as baggage fee revenue, ticket change fee revenue and the marketing component of the sale of mileage credits, are retained by the Company’s major airline partners on flights that the Company operates under its code-share agreements.

Allowance for credit losses

The Company adopted Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments” (“Topic 326”) on January 1, 2020. At adoption, the Company’s primary financial assets included trade receivables from its flying agreements, a note receivable from the sale of the Company’s subsidiary, ExpressJet Airlines, Inc., in 2019, and receivables from aircraft manufacturers and other third parties in the airline industry. The Company recorded a credit loss of $11.6 million net of income tax in conjunction with the adoption of Topic 326. The Company recorded this credit loss as a January 1, 2020, beginning balance sheet entry to retained earnings (net of income tax).

The Company monitors publicly available credit ratings for entities for which the Company has a significant receivable balance. As of September 30, 2021, the Company had gross receivables of $79.0 million in current assets and gross receivables of $222.8 million in other long-term assets. The Company has established credit loss reserves based on publicly available historic default rates issued by a third party for companies with similar credit ratings, factoring in the term of the respective accounts receivable or note receivable. During the nine months ended September 30, 2021, there were no significant changes in the outstanding accounts receivable or notes receivable or the credit ratings of the entities. The Company’s credit loss reserve was $44.6 million at September 30, 2021, compared to $46.2 million at December 31, 2020. The $1.6 million decrease in the credit loss reserve for the nine months ended September 30, 2021, was reflected as a reduction to the credit loss expense.

(4) Share-Based Compensation and Stock Repurchases

During the nine months ended September 30, 2021, the Company granted 44,770 restricted stock units and 157,210 performance shares to certain employees of the Company under the SkyWest, Inc. 2019 Long-Term Incentive Plan. Both the restricted stock units and performance shares have a three-year vesting period, during which the recipient must remain employed with the Company. The number of performance shares awardable from the 2021 grants can range from 0% to 250% of the original amount granted depending on the Company’s performance over a two-year measurement period against the pre-established targets. Upon vesting, each restricted stock unit and performance share will be replaced with one share of common stock. The fair value of these restricted stock units and performance shares on their date of grant was $44.87 per share. During the nine months ended September 30, 2021, the Company did not grant any options to purchase shares of common stock to employees. Additionally, during the nine months ended September 30, 2021, the Company granted 21,175 fully vested shares of common stock to the Company’s directors at a grant date fair value of $44.87.

The Company accounts for forfeitures of restricted stock units and performance shares when forfeitures occur. The estimated fair value of the restricted stock units and performance shares is amortized over the applicable vesting periods. During the nine months ended September 30, 2021, and 2020, the Company recorded pre-tax share-based compensation expense of $7.3 million and $5.9 million, respectively.

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During the nine months ended September 30, 2021, the Company paid $1.6 million for the income tax obligation on vested employee equity awards and issued the net, after-tax shares to employees. The Company did not repurchase any shares of its common stock during the nine months ended September 30, 2021. During the nine months ended September 30, 2020, the Company repurchased 385,606 shares of its common stock for $20.0 million and paid $6.2 million for the income tax obligation on vested employee equity awards and issued the net, after-tax shares to employees.

Under the terms of the PSP 3 Agreement, the Company is restricted from repurchasing shares of its common stock through September 30, 2022.

(5) Net Income Per Common Share

Basic net income per common share (“Basic EPS”) excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share (“Diluted EPS”) reflects the potential dilution that could occur if stock options or other contracts to issue common stock were exercised or converted into common stock. The computation of Diluted EPS does not assume exercise or conversion of securities that would have an anti-dilutive effect on net income per common share. During the nine months ended September 30, 2021, 230,000 performance shares (at target performance) were excluded from the computation of Diluted EPS since the Company had not achieved the minimum target thresholds as of September 30, 2021. During the nine months ended September 30, 2020, 200,000 performance shares (at target performance) were excluded from the computation of Diluted EPS since the Company had not achieved the minimum target thresholds as of September 30, 2020. During the nine months ended September 30, 2021, warrants to purchase 78,000 shares of common stock at $57.47 per share were excluded from the computation of Diluted EPS since the warrants' exercise price was greater than the average market price of the common shares during the quarters ended June 30, 2021, and September 30, 2021.

The calculation of the weighted average number of shares of common stock outstanding for Basic EPS and Diluted EPS for the periods indicated (in thousands, except per share data) is as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Numerator:
Net income	$	9,684	$	33,662	$	107,578	$	37,935
Denominator:
Basic earnings per share weighted average shares		50,380		50,181		50,337		50,199
Dilution due to stock options and restricted stock units		345		441		389		246
Diluted earnings per share weighted average shares		50,725		50,622		50,726		50,445
Basic earnings per share	$	0.19	$	0.67	$	2.14	$	0.76
Diluted earnings per share	$	0.19	$	0.66	$	2.12	$	0.75

(6) Segment Reporting

The Company’s two reporting segments consist of the operations of SkyWest Airlines and SkyWest Leasing activities.

The Company’s chief operating decision maker analyzes the profitability of operating new aircraft financed through the issuance of debt, including the Company’s E175 fleet, separately from the profitability of the Company’s capital deployed for ownership and financing of such aircraft. The SkyWest Airlines segment includes revenue earned under the applicable capacity purchase agreements attributed to operating such aircraft and the respective operating costs. The SkyWest Leasing segment includes applicable revenue earned under the applicable capacity purchase agreements attributed to the ownership of new aircraft acquired through the issuance of debt and the respective depreciation and interest expense of such aircraft. The SkyWest Leasing segment also includes the activity of leasing

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regional jet aircraft and spare engines to third parties. The SkyWest Leasing segment’s total assets and capital expenditures include new aircraft acquired through the issuance of debt and assets leased to third parties.

The following represents the Company’s segment data for the three-month periods ended September 30, 2021, and 2020 (in thousands):

	Three months ended September 30, 2021
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	614,377	$	130,406	$	744,783
Operating expense		633,169		64,564		697,733
Depreciation and amortization expense		53,401		56,196		109,597
Special items - impairment charges		84,592		—		84,592
Interest expense		2,138		26,842		28,980
Segment profit (loss) (2)		(20,930)		39,000		18,070
Total assets (as of September 30, 2021)		2,989,600		3,950,902		6,940,502
Capital expenditures (including non-cash)		26,622		136,677		163,299

	Three months ended September 30, 2020
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	337,975	$	119,518	$	457,493
Operating expense		303,141		79,799		382,940
Depreciation and amortization expense		59,659		61,808		121,467
Interest expense		2,868		27,282		30,150
Segment profit (2)		31,966		12,437		44,403
Total assets (as of September 30, 2020)		2,836,069		3,922,525		6,758,594
Capital expenditures (including non-cash)		4,937		—		4,937

(1) Prorate revenue and airport customer service revenue are primarily reflected in the SkyWest Airlines segment.

(2) Segment profit (loss) is equal to operating income less interest expense.

The following represents the Company’s segment data for the nine-month periods ended September 30, 2021, and 2020 (in thousands):

	Nine months ended September 30, 2021
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	1,548,422	$	387,906	$	1,936,328
Operating expense		1,498,227		195,186		1,693,413
Depreciation and amortization expense		156,878		172,211		329,089
Special items - impairment charges		84,592		—		84,592
Interest expense		11,486		82,788		94,274
Segment profit (2)		38,709		109,932		148,641
Total assets (as of September 30, 2021)		2,989,600		3,950,902		6,940,502
Capital expenditures (including non-cash)		83,650		163,596		247,246
	Nine months ended September 30, 2020
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	1,172,625	$	364,844	$	1,537,469
Operating expense		1,173,152		227,846		1,400,998
Depreciation and amortization expense		170,855		193,958		364,813
Interest expense		8,847		82,433		91,280
Segment profit (loss) (2)		(9,374)		54,565		45,191
Total assets (as of September 30, 2020)		2,836,069		3,922,525		6,758,594
Capital expenditures (including non-cash)		73,063		115,258		188,321

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(1) Prorate revenue and airport customer service revenue are primarily reflected in the SkyWest Airlines segment.

(2) Segment profit (loss) is equal to operating income less interest expense

(7) — Leases, Commitments and Contingencies

The Company leases property and equipment under operating leases. For leases with durations longer than 12 months, the Company recorded the related operating lease right-of-use asset and operating lease liability at the present value of lease payments over the term. The Company used its incremental borrowing rate to discount the lease payments based on information available at lease commencement.

Aircraft

As of September 30, 2021, excluding aircraft financed by the Company’s major airline partners that the Company operates for them under contract, the Company had 43 aircraft under long-term lease agreements with remaining terms ranging from three years to nine years.

Airport facilities

The Company has operating leases for facility space including airport terminals, office space, cargo warehouses and maintenance facilities. The Company generally leases this space from government agencies that control the use of the various airports. The remaining lease terms for facility space vary from one month to 35 years. The Company’s operating leases with lease rates that are variable based on airport operating costs, use of the facilities or other variable factors are excluded from the Company’s right-of-use assets and operating lease liabilities in accordance with accounting guidance.

Leases

As of September 30, 2021, the Company’s right-of-use assets were $248.6 million, the Company’s current maturities of operating lease liabilities were $78.2 million, and the Company’s noncurrent lease liabilities were $171.4 million. During the nine months ended September 30, 2021, the Company paid $63.1 million in operating leases reflected as a reduction from operating cash flows.

The table below presents lease related terms and discount rates as of September 30, 2021.

	As of September 30, 2021
Weighted-average remaining lease term for operating leases	6.3 years
Weighted-average discount rate for operating leases	6.0%

The Company’s lease costs for the three and nine months ended September 30, 2021, and 2020 included the following components (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Operating lease cost	$	23,370	$	23,538	$	67,582	$	72,696
Variable and short-term lease cost		976		950		3,256		3,501
Sublease income		(1,888)		(1,587)		(4,717)		(4,718)
Total lease cost	$	22,458	$	22,901	$	66,121	$	71,479

As of September 30, 2021, the Company leased aircraft, airport facilities, office space, and other property and equipment under non-cancelable operating leases, which are generally on a long-term, triple-net lease basis pursuant to which the Company pays taxes, maintenance, insurance and certain other operating expenses applicable to the leased property. The Company expects that, in the normal course of business, such operating leases that expire may be renewed or replaced by other leases, or the property may be purchased rather than leased. The following table summarizes future minimum rental payments primarily related to leased aircraft required under operating leases that had initial or remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

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October 2021 through December 2021	$	22,346
2022		80,467
2023		74,119
2024		30,426
2025		17,824
Thereafter		84,253
	$	309,435

As of September 30, 2021, the Company had a firm purchase commitment for 39 E175 aircraft from Embraer, S.A. (“Embraer”) with anticipated delivery dates through the first half of 2023 and a firm purchase commitment for seven used CRJ700 aircraft from a third party with anticipated delivery dates by the end of 2021.

The following table summarizes the Company’s commitments and obligations as noted for each of the next five years and thereafter (in thousands):

	Total		Oct - Dec 2021		2022		2023		2024		2025		Thereafter
Operating lease payments for aircraft and facility obligations	$	309,435	$	22,346	$	80,467	$	74,119	$	30,426	$	17,824	$	84,253
Firm aircraft and spare engine commitments		1,062,834		327,446		708,909		26,480		—		—		—
Interest commitments (1)		480,115		28,177		106,024		90,452		74,768		59,766		120,928
Principal maturities on long-term debt		2,996,573		92,341		378,855		386,035		380,475		395,673		1,363,194
Total commitments and obligations	$	4,848,958	$	470,310	$	1,274,255	$	577,086	$	485,669	$	473,263	$	1,568,375

(1) At September 30, 2021, the Company’s long-term debt had fixed interest rates.

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Note 8 — Fair Value Measurements

The Company holds certain assets that are required to be measured at fair value in accordance with GAAP. The Company determined the fair value of these assets based on the following three levels of inputs:

Level 1	—	Quoted prices in active markets for identical assets or liabilities.
Level 2	—	Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Some of the Company’s marketable securities primarily utilize broker quotes in a non-active market for valuation of these securities.
Level 3	—	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, therefore requiring an entity to develop its own assumptions.

As of September 30, 2021, and December 31, 2020, the Company held certain assets that are required to be measured at fair value on a recurring basis. Assets measured at fair value on a recurring basis are summarized below (in thousands):

	Fair Value Measurements as of September 30, 2021
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	49,129	$	—	$	49,129	$	—
Commercial paper		591,544		—		591,544		—
	$	640,673	$	—	$	640,673	$	—
Cash and Cash Equivalents		271,831		271,831		—		—
Total Assets Measured at Fair Value	$	912,504	$	271,831	$	640,673	$	—

	Fair Value Measurements as of December 31, 2020
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	117,928	$	—	$	117,928	$	—
Commercial paper		492,257		—		492,257		—
	$	610,185	$	—	$	610,185	$	—
Cash and Cash Equivalents		215,723		215,723		—		—
Total Assets Measured at Fair Value	$	825,908	$	215,723	$	610,185	$	—

The Company’s “marketable securities” classified as Level 2 securities primarily utilize broker quotes in a non-active market for valuation of these securities.

The Company did not make any significant transfers of securities between Level 1, Level 2 and Level 3 during the nine months ended September 30, 2021. The Company’s policy regarding the recording of transfers between levels is to record any such transfers at the end of the reporting period.

As of September 30, 2021, and December 31, 2020, the Company classified $640.7 million and $610.2 million of marketable securities, respectively, as short-term since it had the intent to maintain a liquid portfolio and the ability to redeem the securities within one year. As of September 30, 2021, and December 31, 2020, the cost of the Company’s total cash and cash equivalents and available for sale securities was $912.5 million and $825.9 million, respectively.

The fair value of the Company’s long-term debt classified as Level 2 debt was estimated using discounted cash flow analyses, based on the Company’s current estimated incremental borrowing rates for similar types of borrowing arrangements. The fair value of the Company’s long-term debt is estimated based on current rates offered to the Company for similar debt and was estimated to be $3.0 billion as of September 30, 2021, and $3.2 billion as of

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December 31, 2020, as compared to the carrying amount of $3.0 billion as of September 30, 2021, and $3.2 billion as of December 31, 2020.

(9) Long-term Debt

Long-term debt consisted of the following as of September 30, 2021, and December 31, 2020 (in thousands):

		September 30, 2021		December 31, 2020
Current portion of long-term debt	$	363,379	$	406,005
Current portion of unamortized debt issue cost, net		(3,491)		(3,847)
Current portion of long-term debt, net of debt issue costs	$	359,888	$	402,158
Long-term debt, net of current maturities	$	2,633,194	$	2,829,997
Long-term portion of unamortized debt issue cost, net		(28,131)		(28,459)
Long-term debt, net of current maturities and debt issue costs	$	2,605,063	$	2,801,538
Total long-term debt (including current portion)	$	2,996,573	$	3,236,002
Total unamortized debt issue cost, net		(31,622)		(32,306)
Total long-term debt, net of debt issue costs	$	2,964,951	$	3,203,696

During the nine months ended September 30, 2021, the Company took delivery of six new E175 aircraft that the Company financed through $117.9 million of long-term debt. The debt associated with the six E175 aircraft has a 12-year term, is due in quarterly installments with fixed annual interest rates ranging from 2.7% to 2.8% and is secured by the E175 aircraft.

During the nine months ended September 30, 2021, in connection with the PSP Extension Agreement and the PSP 3 Agreement, the Company issued to U.S. Treasury promissory notes for an aggregate principal amount of $95.4 million and issued warrants to purchase up to 203,090 shares of the Company’s common stock. The Company has recorded the value of the promissory note and warrants on a relative fair value basis as $95.4 million of long-term debt and $5.8 million in common stock, respectively. The warrants have a five-year term from the date of issuance and 124,773 of the warrants have an exercise price of $40.41 per share and 78,317 of the warrants have an exercise prices of $57.47 per share. See Note 2, “Impact of the COVID-19 Pandemic,” for further discussion of the terms of the payroll support program loan and warrants.

During the second quarter of 2021, the Company repaid all amounts outstanding under the secured loan with U.S. Treasury, and in connection with such repayment, terminated the secured loan agreement. The total repayment amount was $61.2 million, which included all outstanding principal and accrued interest under the secured loan. As a result of the repayment, the collateral securing the obligations of SkyWest Airlines under the secured loan agreement, consisting of aircraft engines and aircraft parts, was released.

During the three months ended September 30, 2021, the Company repaid $80.1 million of debt related to aircraft early.

As of September 30, 2021, and December 31, 2020, the Company had $59.5 million and $61.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions.

As of September 30, 2021, SkyWest Airlines had a $75 million line of credit. The line of credit includes minimum liquidity and profitability covenants and is secured by certain assets. As of September 30, 2021, SkyWest Airlines had no amount outstanding under the facility. However, at September 30, 2021, SkyWest Airlines had $34.0 million in letters of credit issued under the facility, which reduced the amount available under the facility to $41.0 million. During the three months ended September 30, 2021, the Company extended the expiration date of the line of credit to January 1, 2022.

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(10) — Investment in Other Companies

During 2019, the Company created a joint venture with Regional One, Inc. (“Regional One”) by investing $22.3 million for a 75% ownership interest in Aero Engines, LLC. (“Aero Engines”). The primary purpose of Aero Engines is to lease engines to third parties. Aero Engines requires unanimous approval from the Company and Regional One for its engine purchases, dispositions, lease agreements with third parties and all other material transactions. The Company determined Aero Engines is a variable interest entity as the Company has a 75% ownership interest in Aero Engines and all material decisions require unanimous approval from the Company and Regional One, resulting in disproportionate ownership rights relative to voting rights. As unanimous approval is required for all Aero Engines’ material activities, Aero Engines has no primary beneficiary. The Company accounts for its investment in Aero Engines under the equity method. The Company’s exposure in its investment in Aero Engines primarily consists of the Company’s portion of income or loss from Aero Engines’ engine lease agreements with third parties and the Company’s ownership percentage in Aero Engines’ engines book value. The Company invested an additional $1.0 million into Aero Engines in 2020. Aero Engines had no debt outstanding as of September 30, 2021. As of September 30, 2021, the Company’s investment balance in Aero Engines was $19.7 million. The Company’s investment in Aero Engines has been recorded in “Other Assets” on the Company’s consolidated balance sheet. The Company’s portion of the loss generated by Aero Engines for the nine months ended September 30, 2021, was $5.8 million, which is recorded in “Other Income (Expense)” on the Company’s consolidated statements of comprehensive income. Aero Engines’ net loss was primarily due to discrete engine overhaul events that were expensed during the nine months ended September 30, 2021.

(11) Income Taxes

The Company’s effective tax rate for the three months ended September 30, 2021, was 31.9%. The Company’s effective tax rate for the three months ended September 30, 2021, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes and a greater impact related to non-deductible expenses relative to the Company’s pre-tax earnings during the period.

The Company’s effective tax rate for the nine months ended September 30, 2021, was 26.1%. The Company’s effective tax rate for the nine months ended September 30, 2021, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes and the impact of non-deductible expenses.

The Company’s effective tax rate for the three months ended September 30, 2020, was 27.2%. The Company’s effective tax rate for the three months ended September 30, 2020, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes, the impact of non-deductible expenses, and an adjustment to the deferred state tax rate.

The Company’s effective tax rate for the nine months ended September 30, 2020, was 27.1%. The Company’s effective tax rate for the nine months ended September 30, 2020, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes. the impact of non-deductible expenses and an adjustment to the deferred state tax rate, partially offset by a $1.4 million discrete tax benefit from excess tax deductions generated from employee equity transactions that occurred during the nine months ended September 30, 2020, and discrete tax benefits related to prior year state income tax filings.

(12) Special Items – Impairment Charge

During the three months ended September 30, 2021, the Company entered into an agreement with Delta to purchase and operate 16 new E175 aircraft under a multi-year capacity purchase agreement. The 16 new E175 aircraft will replace 16 SkyWest-owned or financed CRJ900 aircraft currently under its Delta contract with expirations ranging from the second half of 2022 to early 2023. As of September 30, 2021, SkyWest Airlines only operated the CRJ900 aircraft under a flying agreement with its major airline partner Delta. As a result of this fleet transition beginning in 2022 and the uncertainty about the Company’s ability to redeploy the CRJ900 aircraft with another major airline partner, the Company concluded that indicators of impairment existed and therefore, evaluated its CRJ900 fleet and related CRJ900 assets for impairment. Pursuant to ASC 360-10, “Impairment and Disposal of Long-Lived Assets,” the Company determined that the asset group for the CRJ900 aircraft existed at the major airline partner level. A recoverability test was performed utilizing estimated undiscounted future cash flows for the CRJ900 aircraft pursuant to applicable agreements with Delta and forecasted cash flow including the estimated value the Company would realize upon disposal of aircraft. This was compared to the carrying value of the related assets resulting in a cash flow deficiency indicating

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that an impairment existed. The impairment analysis required the Company to perform an assessment of the fair value of its long-lived assets related to the CRJ900 aircraft within the asset groups utilized in the recoverability test. The Company engaged a third party to assist in determining the fair value of these aircraft. These values were estimated based on listed market values or recent third-party market transactions for similar assets, adjusted by the related maintenance status of the fleet. All fair values are considered to be Level 3 within the fair value hierarchy. The amounts the Company may ultimately realize from the disposal of its CRJ900 long-lived assets may vary from the fair value assessments. On September 30, 2021, the Company recorded a non-cash impairment charge of $84.6 million to write-down the CRJ900 aircraft operating under the Delta contracts to their estimated fair value. This special item impairment charge is reflected in the SkyWest Airlines operating expenses under Note 6, “Segment Reporting.”

(13) Legal Matters

The Company is subject to certain legal actions which it considers routine to its business activities. As of September 30, 2021, the Company’s management believed, after consultation with legal counsel, that the ultimate outcome of such legal matters was not likely to have a material adverse effect on the Company’s financial position, liquidity, or results of operations.

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ITEM 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis presents factors that had a material effect on the results of operations of SkyWest, Inc. (“SkyWest” “we” or “us”) during the three- and nine-month periods ended September 30, 2021, and 2020. Also discussed is our financial condition as of September 30, 2021, and December 31, 2020. You should read this discussion in conjunction with our condensed consolidated financial statements for the three and nine months ended September 30, 2021, including the notes thereto, appearing elsewhere in this Report. This discussion and analysis contains forward-looking statements. Please refer to the section of this Report entitled “Cautionary Statement Concerning Forward-Looking Statements” for discussion of uncertainties, risks and assumptions associated with these statements.

Cautionary Statement Concerning Forward-Looking Statements

Certain of the statements contained in this Report should be considered “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may be identified by words such as “may,” “will,” “expect,” “intend,” “anticipate,” “believe,” “estimate,” “plan,” “project,” “could,” “should,” “hope,” “likely,” and “continue” and similar terms used in connection with statements regarding our outlook, anticipated operations, the revenue environment, our contractual relationships, and our anticipated financial performance. These statements include, but are not limited to, statements regarding the impact of the COVID-19 pandemic on our business, results of operations and financial condition and the impact of any measures, including travel restrictions, taken to mitigate the effect of the pandemic, our future growth and development plans, including our future financial and operating results, our plans, objectives, expectations and intentions and other statements that are not historical facts. Readers should keep in mind that all forward-looking statements are based on our existing beliefs about present and future events outside of our control and on assumptions that may prove to be incorrect. If one or more risks identified in this Report materializes, or any other underlying assumption proves incorrect, our actual results will vary, and may vary materially, from those anticipated, estimated, projected, or intended for a number of reasons, including but not limited to: the uncertainty of the duration, scope and impact of COVID-19; a further spread or worsening of COVID-19; the consequences of the COVID-19 pandemic to global economic conditions, the travel industry and our major airline partners in general and our financial condition and results of operations in particular; the challenges of competing successfully in a highly competitive and rapidly changing industry; developments associated with fluctuations in the economy and the demand for air travel, including as a result of the COVID-19 pandemic; the financial stability of United Airlines, Inc. (“United”), Delta Air Lines, Inc. (“Delta”), American Airlines, Inc. (“American”) and Alaska Airlines, Inc. (“Alaska”) (each, a “major airline partner”) and any potential impact of their financial condition on our operations; fluctuations in flight schedules, which are determined by the major airline partners for whom SkyWest conducts flight operations; variations in market and economic conditions; significant aircraft lease and debt commitments; realization of manufacturer residual value guarantees on applicable SkyWest aircraft; residual aircraft values and related impairment charges; the impact of global instability; labor relations and costs; potential fluctuations in fuel costs, and potential fuel shortages; the impact of weather-related or other natural disasters on air travel and airline costs; new aircraft deliveries; and the ability to attract and retain qualified pilots, as well as other factors identified under the heading “Risk Factors” in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2020, under the heading “Risk Factors” in Part II, Item 1A of this Report, elsewhere in this Report, in our other filings with the Securities and Exchange Commission (the “SEC”) and other unanticipated factors.

There may be other factors that may affect matters discussed in forward-looking statements set forth in this Report, which factors may also cause actual results to differ materially from those discussed. Additionally, the risks, uncertainties and other factors set forth above or otherwise referred to in the reports that we have filed with the SEC may be further amplified by the global impact of the COVID-19 pandemic. We assume no obligation to publicly update any forward-looking statement to reflect actual results, changes in assumptions or changes in other factors affecting these statements other than as required by applicable law.

Impact of the COVID-19 Pandemic

COVID-19, which was declared a global health pandemic by the World Health Organization in March 2020, has had a significant, negative impact on our business and financial results beginning in March 2020 and has materially

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and adversely affected our revenues, particularly under our prorate agreements. We operated 137,493 flights during the third quarter of 2020, which increased to 210,251 flights, or 52.9%, during the third quarter of 2021. However, we operated 219,272 flights during the third quarter of 2019 and we have not returned to pre-COVID flight levels as of September 30, 2021. The rate of recovery from the impact of COVID-19 and whether such recovery will be sustained are uncertain as factors outside of our control, including the distribution and efficacy of vaccines, government-imposed vaccine mandates, new variants of the virus, and continued or new government travel restrictions, cannot be estimated.

Liquidity. At September 30, 2021, we had $953.5 million in total available liquidity, consisting of $912.5 million in cash and marketable securities and $41.0 million available under SkyWest Airlines’ line of credit.

Overview

We have the largest regional airline operation in the United States through our operating subsidiary SkyWest Airlines, Inc. (“SkyWest Airlines”). As of September 30, 2021, we offered scheduled passenger service with approximately 2,250 total daily departures to destinations in the United States, Canada, Mexico and the Caribbean. Our fleet of Embraer E175 regional jet aircraft (“E175”), Canadair CRJ900 regional jet aircraft (“CRJ900”) and Canadair CRJ700 regional jet aircraft (“CRJ700”) have a multiple-class seat configuration, whereas our CRJ200 aircraft have a single-class seat configuration. As of September 30, 2021, we had 615 total aircraft in our fleet, including 486 aircraft in scheduled service or under contract under our code-share agreements, summarized as follows:

	E175	CRJ900	CRJ700	CRJ200	Total
United	90	—	19	112	221
Delta	71	40	5	29	145
American	6	—	82	—	88
Alaska	32	—	—	—	32
Aircraft in scheduled service or under contract	199	40	106	141	486
Leased to third parties	—	5	34	—	39
Other*	—	4	22	64	90
Total Fleet	199	49	162	205	615

*As of September 30, 2021, other aircraft include: supplemental spare aircraft supporting our code-share agreements and may be used in future code-share or leasing arrangements, aircraft transitioning between code-share agreements with our major airline partners, or aircraft that are in the process of being parted out.

Our business model is based on providing scheduled regional airline service under code-share agreements (commercial agreements, typically in the form of capacity purchase agreements or prorate agreements, between airlines that, among other things, allow one airline to use another airline’s flight designator codes on its flights) with our major airline partners. Our success is principally dependent on our ability to meet the needs of our major airline partners through providing a reliable and safe operation at attractive economics. From September 30, 2020, to September 30, 2021, we made several changes to our fleet count under our flying agreements, including the addition of ten new E175 aircraft, 20 used CRJ700 aircraft, one new CRJ900 aircraft, and seven used CRJ200 aircraft. Additionally, from September 30, 2020, to September 30, 2021, we increased the number of CRJ700 aircraft we leased to third parties from 13 aircraft to 34 aircraft and leases on four CRJ200 aircraft with third parties terminated.

We anticipate our fleet will continue to evolve, as we are scheduled to add 14 new E175 aircraft with American by the end of 2022, nine new E175 aircraft with Alaska by the first half of 2023, 16 new E175 aircraft with Delta by the first half of 2023 and 19 used CRJ700 aircraft with American by 2023. The 16 E175 aircraft with Delta will replace 16 older SkyWest-owned or financed CRJ900 aircraft currently operating under contract with Delta. Under the terms of the contract with Delta, Delta has the right to purchase the 16 E175 aircraft at the end of the contract term at a price estimated to be the fair value at the end of the contract. Timing of these anticipated deliveries may be subject to change as we are coordinating with our major airline partners in response to the COVID-19 demand recovery or other factors. Our primary objective in the fleet changes is to improve our profitability by adding new E175 aircraft and used CRJ aircraft to capacity purchase agreements, and potentially removing older aircraft from service that typically require higher maintenance costs.

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As of September 30, 2021, approximately 45.5% of our aircraft in scheduled service or under contract were operated for United, approximately 29.8% were operated for Delta, approximately 18.1% were operated for American and approximately 6.6% were operated for Alaska.

Historically, multiple contractual relationships with major airlines have enabled us to reduce our reliance on any single major airline code and to enhance and stabilize operating results through a mix of fixed-fee arrangements (referred to as “capacity purchase agreements”) and revenue-sharing arrangements (referred to as “prorate” agreements). For the nine months ended September 30, 2021, capacity purchase revenue and prorate revenue represented approximately 83.9% and 16.1%, respectively, of our total flying agreements revenue. On contract routes, the major airline partner controls scheduling, ticketing, pricing and seat inventories and we are compensated by the major airline partner at contracted rates based on completed block hours (measured from takeoff to landing, including taxi time), flight departures, the number of aircraft under contract and other operating measures. On prorate routes, we have more control over scheduling, pricing and seat inventories, and we share passenger fares with our major airline partners according to prorate formulas. Our prorate revenue and profitability may fluctuate based on ticket prices and passenger loads, and we are responsible for the operating costs of the prorate flights, including fuel and airport costs.

Third Quarter Summary

We had total operating revenues of $744.8 million for the three months ended September 30, 2021, a 62.8% increase compared to total operating revenues of $457.5 million for the three months ended September 30, 2020. We had net income of $9.7 million, or $0.19 per diluted share, for the three months ended September 30, 2021, compared to net income of $33.7 million, or $0.66 per diluted share, for the three months ended September 30, 2020. The significant items affecting our revenue and operating expenses during the three months ended September 30, 2021, are outlined below:

Revenue

The number of aircraft we have in scheduled service and the number of block hours we incur on our flights are primary drivers to our flying agreements revenue under our capacity purchase agreements. The number of flights we operate and the corresponding number of passengers we carry are the primary drivers of our revenue under our prorate flying agreements. As a result of higher passenger demand compared to the onset of the COVID-19 pandemic, the number of aircraft we operated increased from 448 as of September 30, 2020, to 486 as of September 30, 2021; the number of block hours increased from 222,561 for the three months ended September 30, 2020, to 370,462 for the three months ended September 30, 2021, or by 66.5%; and the number of passengers we carried increased from 4.9 million for the three months ended September 30, 2020, to 10.9 million, or by 120.9%.

As a result of increased flight schedules and additional aircraft operating under our capacity purchase agreements for the three months ended September 30, 2021, as compared to three months ended September 30, 2020, our capacity purchase revenue increased $206.5 million, or 53.7%. Additionally, we recognized $19.2 million of previously deferred revenue during the three months ended September 30, 2021, compared to deferring revenue of $29.6 million of fixed monthly payments received under our capacity purchase agreements for the three months ended September 30, 2020, as further described in the section of this report entitled “Results of Operations.” As a result of increased flight schedules and passengers carried on our prorate routes, our prorate revenue increased $67.5 million, or 111.1% for the three months ended September 30, 2021, as compared to the three months ended September 30, 2020.

Operating Expenses

Our total operating expenses increased $314.8 million, or 82.2% for the three months ended September 30, 2021, compared to the three months ended September 30, 2020. This increase was primarily due to an increase in the number of flights we operated and a non-cash impairment charge of $84.6 million for the three months ended September 30, 2021. Departures increased from 137,493 for the three months ended September 30, 2020, to 210,251 for the three months ended September 30, 2021, or by 52.9%. During the three months ended September 30, 2021, we recorded a non-cash impairment charge of $84.6 million to write-down CRJ900 aircraft operating under Delta capacity purchase agreements to their estimated fair value. Additional details regarding the increase in our operating expenses are described in the section of this Report entitled “Results of Operations.”

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Fleet Activity

The following table summarizes our fleet scheduled for service or under contract as of:

Aircraft in Service or Under Contract	September 30, 2021	December 31, 2020	September 30, 2020
E175s	199	193	189
CRJ900s	40	39	39
CRJ700s	106	90	86
CRJ200s	141	130	134
Total	486	452	448

Subsequent IT Outage

In October 2021, we identified malware on our system resulting from a cyberattack. We quarantined the malware without disruption to our operations and implemented remedial measures. In connection with these remedial measures, we experienced a server outage that resulted in approximately 1,700 flight cancelations. We estimate the adverse impact of these cancelations on our financial results for the three months ending December 31, 2021, will be $15 million to $20 million (pre-tax).

Critical Accounting Policies

Our significant accounting policies are summarized in Note 1 to our consolidated financial statements for the year ended December 31, 2020, which are presented in our Annual Report on Form 10-K for the year ended December 31, 2020. Critical accounting policies are those policies that are most important to the preparation of our consolidated financial statements and require management’s subjective and complex judgments due to the need to make estimates about the effect of matters that are inherently uncertain. Our critical accounting policies relate to revenue recognition, aircraft leases, long-lived assets, self-insurance and income tax. The application of these accounting policies involves the exercise of judgment and the use of assumptions as to future uncertainties and, as a result, actual results will likely differ, and may differ materially, from such estimates.

Results of Operations

Three Months Ended September 30, 2021, and 2020

Operational Statistics

The following table sets forth our major operational statistics and the associated percentage changes for the periods identified below. The increase in block hours, departures and passengers carried during the three months ended September 30, 2021, compared to the three months ended September 30, 2020, was due to the increase in demand related to the ongoing recovery from the COVID-19 pandemic. However, we completed 219,272 flights and incurred 375,933 block hours during the three months ended September 30, 2019, indicating our flight schedules have not returned to pre-COVID-19 levels.

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	For the three months ended September 30,
Block hours by aircraft type:	2021		2020		% Change
E175s	169,143		117,342		44.1	%
CRJ900s	34,031		12,861		164.6	%
CRJ700s	78,788		45,807		72.0	%
CRJ200s	88,500		46,551		90.1	%
Total block hours	370,462		222,561		66.5	%
Departures	210,251		137,493		52.9	%
Passengers carried	10,862,343		4,916,403		120.9	%
Passenger load factor	79.1	%	54.1	%	25.0	pts
Average passenger trip length (miles)	537		503		6.8	%

Operating Revenues

The following table summarizes our operating revenue for the periods indicated (dollar amounts in thousands):

	For the three months ended September 30,
	2021		2020		$ Change		% Change
Flying agreements	$	719,084	$	445,048	$	274,036	61.6	%
Lease, airport services and other		25,699		12,445		13,254	106.5	%
Total operating revenues	$	744,783	$	457,493	$	287,290	62.8	%

Flying agreements revenue primarily consists of revenue earned on flights we operate under our capacity purchase agreements and prorate agreements with our major airline partners. Lease, airport services and other revenues consist of revenue earned from leasing aircraft and spare engines to third parties separate from our capacity purchase agreements and providing airport counter, gate and ramp services.

We disaggregate our flying agreements revenue into the following categories (dollar amounts in thousands):

	For the three months ended September 30,
	2021		2020		$ Change		% Change
Capacity purchase agreements revenue: flight operations	$	308,273	$	175,753	$	132,520	75.4	%
Capacity purchase agreements revenue: aircraft lease and fixed revenue		282,498		208,516		73,982	35.5	%
Prorate agreements revenue		128,313		60,779		67,534	111.1	%
Flying agreements revenue	$	719,084	$	445,048	$	274,036	61.6	%

The increase in “Capacity purchase agreements revenue: flight operations” of $132.5 million was primarily due to an increase in scheduled flights we operated under our contracts with our major airline partners as a result of the ongoing COVID-19 demand recovery. Our completed departures increased 52.9% and completed block hours increased 66.5% during the three months ended September 30, 2021, compared to the three months ended September 30, 2020. We provided temporary rate reductions to our major airline partners under our capacity purchase agreements during the three months ended September 30, 2021, and 2020 in response to the COVID-19 demand disruption impact to our partners.

The increase in “Capacity purchase agreements revenue: aircraft lease and fixed revenue” of $74.0 million was primarily due to recognizing previously deferred revenue during the three months ended September 30, 2021, compared to the three months ended September 30, 2020, combined with aircraft lease and fixed rate revenue generated from ten E175 aircraft added to our fleet since September 30, 2020. Under our capacity purchase agreements, we are paid a fixed amount per month per aircraft over the contract term. We recognize the fixed amount per aircraft as revenue proportionately to the number of flights we complete, our performance obligation, for each reporting period. During the three months ended September 30, 2021, the increase in our flight schedules resulted in recognizing $19.2 million of previously deferred revenue. For the three months ended September 30, 2020, we deferred recognizing revenue on $29.6 million of fixed monthly cash payments we received under our capacity purchase agreements. Our deferred revenue

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related to the fixed payments will adjust over the remaining contract term for each capacity purchase agreement based on the number of flights we complete each reporting period relative to the number of flights we anticipate completing over the remaining contract term of each capacity purchase agreement. The deferred revenue balance applicable to each contract will be recorded as revenue by the end of each respective contract term. Our total deferred revenue balance was $118.4 million as of September 30, 2021.

The increase in prorate agreements revenue of $67.5 million was primarily due to the increase in prorate passengers and passenger revenue we received on routes we operated under our prorate agreements during the three months ended September 30, 2021, compared to the three months ended September 30, 2020, due to the ongoing COVID-19 demand recovery.

The increase in lease, airport services and other revenues of $13.3 million was primarily due an increase in the number of aircraft leased to third parties from 22 aircraft at September 30, 2020, to 39 aircraft at September 30, 2021, and an increase in airport service revenue due to the increase in the number of flights operated at locations where we were contracted to provide airport customer service during the three months ended September 30, 2021, compared to the three months ended September 30, 2020.

Operating Expenses

Individual expense components attributable to our operations are set forth in the following table (dollar amounts in thousands):

	For the three months ended September 30,
	2021		2020		$ Change		% Change
Salaries, wages and benefits	$	265,603	$	194,516	$	71,087	36.5	%
Aircraft maintenance, materials and repairs		209,795		150,148		59,647	39.7	%
Depreciation and amortization		109,597		121,467		(11,870)	(9.8)	%
Airport-related expenses		25,992		18,003		7,989	44.4	%
Aircraft fuel		32,561		13,641		18,920	138.7	%
Aircraft rentals		16,098		15,785		313	2.0	%
Special items - impairment charges		84,592		—		84,592	NM
Payroll support grant		(115,352)		(190,200)		74,848	(39.4)	%
Other operating expenses		68,847		59,580		9,267	15.6	%
Total operating expenses	$	697,733	$	382,940	$	314,793	82.2	%
Interest expense		28,980		30,150		(1,170)	(3.9)	%
Total airline expenses	$	726,713	$	413,090	$	313,623	75.9	%

NM = Not Meaningful

Salaries, wages and benefits. The $71.1 million, or 36.5%, increase in salaries, wages and benefits was due to the increase in direct labor costs that resulted from a significantly higher number of flights we operated during the three months ended September 30, 2021, compared to the three months ended September 30, 2020.

Aircraft maintenance, materials and repairs. The $59.6 million, or 39.7%, increase in aircraft maintenance expense was primarily due to an increase in direct maintenance costs incurred on a portion of SkyWest Airlines’ CRJ700 and CRJ200 fleets intended to extend the operational performance and reliability of its older aircraft, including increased engine maintenance expense during the three months ended September 30, 2021, compared to the three months ended September 30, 2020.

Depreciation and amortization. The $11.9 million, or 9.8%, decrease in depreciation and amortization expense was primarily due to certain CRJ200 aircraft that became fully depreciated since September 30, 2020. This reduction in depreciation on our CRJ200 fleet was partially offset by an increase in depreciation expense due to the acquisition of ten new E175 aircraft and spare engines since September 30, 2020, as well as the acquisition of 30 used CRJ700 aircraft since September 30, 2020.

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Airport-related expenses. Airport-related expenses include airport-related customer service costs such as outsourced airport gate and ramp agent services, airport security fees, passenger interruption costs, deicing, landing fees and station rents. For clarity, our employee airport customer service labor costs are reflected in salaries, wages and benefits and customer service labor costs we outsource to third parties are included in airport-related expenses. The $8.0 million, or 44.4%, increase in airport-related expenses was primarily due to an increase in our prorate passengers.

Aircraft fuel. The $18.9 million, or 138.7%, increase in fuel cost was primarily due to an increase in the number of flights we operated under our prorate agreements, corresponding increase in gallons of fuel we purchased and an increase in our average fuel cost per gallon from $1.75 for the three months ended September 30, 2020, to $2.55 for the three months ended September 30, 2021. We purchase and incur expense for all fuel on flights operated under our prorate agreements. All fuel costs incurred under our capacity purchase contracts are either purchased directly by our major airline partner, or if purchased by us, we record the direct reimbursement as a reduction to our fuel expense. The following table summarizes the gallons of fuel we purchased under our prorate agreements, for the periods indicated:

	For the three months ended September 30,
(in thousands)	2021		2020		% Change
Fuel gallons purchased		12,779		7,785	64.1	%
Fuel expense	$	32,561	$	13,641	138.7	%

Aircraft rentals. The $0.3 million, or 2.0%, increase in aircraft rentals was primarily related to two additional aircraft leased from third parties since September 30, 2020.

Special items - impairment charges. Special items for the three months ended September 30, 2021, consisted of a non-cash impairment charge on SkyWest Airlines’ CRJ900 aircraft of $84.6 million. During the three months ended September 30, 2021, SkyWest reached an agreement with Delta to place 16 new E175 aircraft under contract beginning in 2022. These E175 aircraft will replace 16 older SkyWest-owned or financed CRJ900 aircraft currently operating under contract with Delta. We do not anticipate extending the contract term with Delta on these 16 CRJ900 aircraft. These factors, combined with the market value of SkyWest’s CRJ900 fleet, resulted in a non-cash impairment charge of $84.6 million.

Payroll support grant. In April 2021, we entered into an agreement with U.S. Treasury and received $250.0 million in emergency relief through the American Rescue Plan Act payroll support program, of which $205.0 million was in the form of payroll support grants that were recognized as a reduction in labor expense over the periods the grants intended to compensate. We recognized $115.4 million in payroll support grant proceeds we received as a reduction to our operating expenses for the three months ended September 30, 2021. We recognized $190.2 million in payroll support grant proceeds we received under similar agreements with U.S. Treasury as a reduction to our operating expenses for the three months ended September 30, 2020. As of September 30, 2021, we have recognized the full payroll support grant benefits received from the U.S. Treasury as a reduction to our operating expenses.

Other operating expenses. Other operating expenses primarily consist of property taxes, hull and liability insurance, simulator costs, crew per diem, crew hotel costs and credit loss reserves. The $9.3 million, or 15.6%, increase in other operating expenses was primarily related to an increase in other operating costs that correspond to the higher number of flights we operated during the three months ended September 30, 2021, compared to the three months ended September 30, 2020, such as crew per diem, crew hotel costs and simulator costs.

Interest Expense. The $1.2 million, or 3.9%, decrease in interest expense was primarily related to an overall lower effective interest rate during the three months ended September 30, 2021, compared to the three months ended September 30, 2020.

Total airline expenses. Our total airline expenses, comprised of our total operating expenses and interest expense, increased $313.6 million, or 75.9%, due to an increase in direct operating costs attributed to the higher number of completed flights during the three months ended September 30, 2021, compared to the three months ended September 30, 2020, and due to the non-cash impairment charge of $84.6 million on SkyWest operated CRJ900 aircraft during the three months ended September 30, 2021.

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As our interest expense is primarily attributed to debt associated with financing aircraft under our capacity purchase agreements and as revenue earned under our capacity purchase agreements is intended to compensate us for our aircraft ownership costs, including interest expense, we believe our total airline expense is meaningful expense measure for management discussion and analysis purposes.

Summary of interest income, other income (expense) and provision for income taxes:

Interest income. Interest income decreased $1.2 million, or 83.0%, during the three months ended September 30, 2021, compared to the three months ended September 30, 2020. The decrease in interest income was primarily related to a decrease in average interest rates attributed to our marketable securities subsequent to September 30, 2020.

Other income (expense), net. Other income primarily consisted of loss related to our investment in a joint venture with a third party. The loss was due to discrete engine overhaul expenses incurred by the joint venture party during the three months ended September 30, 2021.

Provision for income taxes. For the three months ended September 30, 2021, and 2020, our effective income tax rates were 31.9% and 27.2%, respectively, which include the statutory federal income tax rate of 21% and other reconciling income tax items, including state income taxes and the impact of non-deductible expenses. The increase in the effective tax rate primarily relates to a greater impact related to non-deductible expenses for the three months ended September 30, 2021, compared to the three months ended September 30, 2020, as a result of lower pre-tax earnings for the three months ended September 30, 2021, compared to the same period of 2020.

Net income. Primarily due to the factors described above, we generated net income of $9.7 million, or $0.19 per diluted share, for the three months ended September 30, 2021, compared to net income $33.7 million, or $0.66 per diluted share, for the three months ended September 30, 2020.

Nine Months Ended September 30, 2021, and 2020

Operational Statistics

The following table sets forth our major operational statistics and the associated percentage changes for the periods identified below. The increase in block hours, departures and passengers carried during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, was due to the increase in demand related to the ongoing recovery from the COVID-19 pandemic which began to negatively impact our operational statistics in the month of March 2020. We completed 627,799 flights and incurred 1,096,104 block hours during the nine months ended September 30, 2019, indicating our flight schedules have not returned to pre-COVID-19 levels.

	For the nine months ended September 30,
Block hours by aircraft type:	2021		2020		% Change
E175s	446,867		311,476		43.5	%
CRJ900s	87,750		45,214		94.1	%
CRJ700s	215,263		144,547		48.9	%
CRJ200s	220,809		204,573		7.9	%
Total block hours	970,689		705,810		37.5	%
Departures	550,643		427,531		28.8	%
Passengers carried	25,872,805		15,583,236		66.0	%
Passenger load factor	72.0	%	56.7	%	15.3	pts
Average passenger trip length (miles)	536		495		8.3	%

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Operating Revenues

The following table summarizes our operating revenue for the periods indicated (dollar amounts in thousands):

	For the nine months ended September 30,
	2021		2020		$ Change		% Change
Flying agreements	$	1,863,242	$	1,490,912	$	372,330	25.0	%
Lease, airport services and other		73,086		46,557		26,529	57.0	%
Total operating revenues	$	1,936,328	$	1,537,469	$	398,859	25.9	%

Flying agreements revenue primarily consists of revenue earned on flights we operate under our capacity purchase agreements and prorate agreements with our major airline partners. Lease, airport services and other revenues consist of revenue earned from leasing aircraft and spare engines to third parties separate from our capacity purchase agreements and providing airport counter, gate and ramp services.

We disaggregate our flying agreements revenue into the following categories (dollar amounts in thousands):

	For the nine months ended September 30,
	2021		2020		$ Change		% Change
Capacity purchase agreements revenue: flight operations	$	792,501	$	674,222	$	118,279	17.5	%
Capacity purchase agreements revenue: aircraft lease and fixed revenue		770,548		619,354		151,194	24.4	%
Prorate agreements revenue		300,193		197,336		102,857	52.1	%
Flying agreements revenue	$	1,863,242	$	1,490,912	$	372,330	25.0	%

The increase in “Capacity purchase agreements revenue: flight operations” of $118.3 million was primarily due to an increase in scheduled flights we operated under our contracts with our major airline partners as a result of the ongoing COVID-19 demand recovery. Our completed departures increased 28.8% and completed block hours increased 37.5% during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020. We provided temporary rate reductions to our major airline partners under our capacity purchase agreements during the nine months ended September 30, 2021, and 2020 in response to the COVID-19 demand disruption impact to our partners.

The increase in “Capacity purchase agreements revenue: aircraft lease and fixed revenue” of $151.2 million was primarily due to a reduction in deferred revenue for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, combined with an increase in aircraft lease and fixed rate revenue generated from ten E175 aircraft added to our fleet since September 30, 2020. Under our capacity purchase agreements, we are paid a fixed amount per month per aircraft over the contract term. We recognize the fixed amount per aircraft as revenue proportionately to the number of flights we complete, our performance obligation, for each reporting period. We operated a materially lower number of flights during the nine months ended September 30, 2021, and 2020 compared to historical levels due to a reduction in flight schedules resulting from the COVID-19 pandemic. Due to the significantly reduced flight activity during the nine months ended September 30, 2021, and 2020, and based on an anticipated increase in future monthly flight volumes over the remaining contract terms, we determined the fixed amount per month per aircraft received during the nine months ended September 30, 2021, and 2020 was disproportionately high relative to the volume of flights operated during the nine months ended September 30, 2021, and 2020. Accordingly, we deferred recognizing revenue of $7.7 million and $98.6 million of fixed monthly cash payments we received under our capacity purchase agreements for the nine months ended September 30, 2021, and September 30, 2020, respectively. Our deferred revenue related to the fixed payments will adjust over the remaining contract term for each capacity purchase agreement based on the number of flights we complete each reporting period relative to the number of flights we anticipate completing over the remaining contract term of each capacity purchase agreement. The deferred revenue balance applicable to each contract will be recorded as revenue by the end of each respective contract term. Our total deferred revenue balance was $118.4 million as of September 30, 2021.

The increase in prorate agreements revenue of $102.9 million was primarily due to the increase in prorate passengers and passenger revenue we received on routes we operated under our prorate agreements during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, due to the COVID-19 demand recovery.

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The increase in lease, airport services and other revenues of $26.5 million was primarily due an increase in the number of aircraft leased to third parties from 22 aircraft at September 30, 2020, to 39 aircraft at September 30, 2021, and an increase in airport service revenue due to the increase in the number of flights operated at locations where we were contracted to provide airport customer service during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020.

Operating Expenses

Individual expense components attributable to our operations are set forth in the following table (dollar amounts in thousands):

	For the nine months ended September 30,
	2021		2020		$ Change		% Change
Salaries, wages and benefits	$	718,868	$	613,895	$	104,973	17.1	%
Aircraft maintenance, materials and repairs		604,501		431,654		172,847	40.0	%
Depreciation and amortization		329,089		364,813		(35,724)	(9.8)	%
Airport-related expenses		72,478		70,192		2,286	3.3	%
Aircraft fuel		77,622		45,875		31,747	69.2	%
Aircraft rentals		47,311		49,537		(2,226)	(4.5)	%
Special items - impairment charges		84,592		—		84,592	NM
Payroll support grant		(422,669)		(342,138)		(80,531)	23.5	%
Other operating expenses		181,621		167,170		14,451	8.6	%
Total operating expenses	$	1,693,413	$	1,400,998	$	292,415	20.9	%
Interest expense		94,274		91,280		2,994	3.3	%
Total airline expenses	$	1,787,687	$	1,492,278	$	295,409	19.8	%

NM = Not Meaningful

Salaries, wages and benefits. The $105.0 million, or 17.1%, increase in salaries, wages and benefits was due to the increase in direct labor costs that resulted from a higher number of flights we operated during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020.

Aircraft maintenance, materials and repairs. The $172.8 million, or 40.0%, increase in aircraft maintenance expense was primarily due to an increase in direct maintenance costs incurred on a portion of SkyWest Airlines’ CRJ700 and CRJ200 fleets intended to extend the operational performance and reliability of these older aircraft, including increased engine maintenance expense during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020.

Depreciation and amortization. The $35.7 million, or 9.8%, decrease in depreciation and amortization expense was primarily due to certain CRJ200 aircraft that became fully depreciated during 2020. This reduction in depreciation on our CRJ200 fleet was partially offset by an increase in depreciation expense due to the acquisition of ten new E175 aircraft and spare engines since September 30, 2020, as well as the acquisition of 30 used CRJ700 aircraft since September 30, 2020.

Airport-related expenses. Airport-related expenses include airport-related customer service costs such as outsourced airport gate and ramp agent services, airport security fees, passenger interruption costs, deicing, landing fees and station rents. For clarity, our employee airport customer service labor costs are reflected in salaries, wages and benefits and customer service labor costs we outsource to third parties are included in airport-related expenses. The $2.3 million, or 3.3%, increase in airport-related expenses was primarily due to an increase in our prorate passengers.

Aircraft fuel. The $31.7 million, or 69.2%, increase in fuel cost was primarily due to an increase in the number of flights we operated under our prorate agreements and corresponding increase in gallons of fuel we purchased, and an increase in our average fuel cost per gallon from $1.92 for the nine months ended September 30, 2020, to $2.37 for the nine months ended September 30, 2021. We purchase and incur expense for all fuel on flights operated under our prorate agreements. All fuel costs incurred under our capacity purchase contracts are either purchased directly by our major

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airline partner, or if purchased by us, we record the direct reimbursement as a reduction to our fuel expense. The following table summarizes the gallons of fuel we purchased under our prorate agreements, for the periods indicated:

	For the nine months ended September 30,
(in thousands)	2021		2020		% Change
Fuel gallons purchased		32,771		23,892	37.2	%
Fuel expense	$	77,622	$	45,875	69.2	%

Aircraft rentals. The $2.2 million, or 4.5%, decrease in aircraft rentals was primarily related to a reduction of our fleet size that was financed through leases from third parties as a result of scheduled lease expirations subsequent to September 30, 2020.

Special items - impairment charges. Special items for the nine months ended September 30, 2021, consisted of a non-cash impairment charge on SkyWest Airlines’ CRJ900 aircraft of $84.6 million. During the nine months ended September 30, 2021, SkyWest reached an agreement with Delta to place 16 new E175 aircraft under contract beginning in 2022. These E175 aircraft will replace 16 older SkyWest-owned or financed CRJ900 aircraft currently operating under contract with Delta. We do not anticipate extending the contract term with Delta on these 16 CRJ900 aircraft. These factors, combined with the market value of SkyWest’s CRJ900 fleet, resulted in a non-cash impairment charge of $84.6 million.

Payroll support grant. In January 2021, we entered into an agreement with U.S. Treasury and received $233.1 million in emergency relief through the 2021 Appropriations Act payroll support program, of which $193.2 million was in the form of payroll support grants that were recognized as a reduction in labor expense over the periods the grants intended to compensate. Additionally, in April 2021, the Company received an additional $35.0 million in proceeds under the PSP Extension Agreement, of which $24.5 million was in the form of payroll support grants that were recognized as a reduction of labor expense during the period the grant was intended to compensate. In April 2021, we also entered into an agreement with U.S. Treasury and received $250.0 million in emergency relief through the American Rescue Plan Act payroll support program, of which $205.0 million was in the form of payroll support grants that were recognized as a reduction in labor expense over the periods the grants intended to compensate. We recognized $422.7 million in payroll support grant proceeds we received as a reduction to our operating expenses for the nine months ended September 30, 2021, compared to $342.1 million in payroll support grant proceeds we received under similar agreements with U.S. Treasury as a reduction to our operating expenses for the nine months ended September 30, 2020.

Other operating expenses. Other operating expenses primarily consist of property taxes, hull and liability insurance, simulator costs, crew per diem, crew hotel costs and credit loss reserves. The $14.5 million, or 8.6%, increase in other operating expenses was primarily related to an increase in other operating costs that correspond to the higher number of flights we operated during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, such as crew per diem, crew hotel costs and simulator costs.

Interest Expense. The $3.0 million, or 3.3%, increase in interest expense was primarily related to $3.6 million of deferred loan costs expense attributed to the payoff and termination of the secured loan agreement with U.S. Treasury during the nine months ended September 30, 2021, offset by an overall lower effective interest rate during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020.

Total airline expenses. Our total airline expenses, comprised of our total operating expenses and interest expense, increased $295.4 million, or 19.8%, due to an increase in direct operating costs attributed to the higher number of completed flights during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, and due to the non-cash impairment charge of $84.6 million on SkyWest operated CRJ900 aircraft during the nine months ended September 30, 2021, offset by an increase in the payroll support grant benefit we recorded during the nine months ended September 30, 2021, compared to the benefit recorded for the nine months ended September 30, 2020.

As our interest expense is primarily attributed to debt associated with financing aircraft under our capacity purchase agreements and as revenue earned under our capacity purchase agreements is intended to compensate us for our

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aircraft ownership costs, including interest expense, we believe our total airline expense is meaningful expense measure for management discussion and analysis purposes.

Summary of interest income, other income (expense) and provision for income taxes:

Interest income. Interest income decreased $4.9 million, or 87.0%, during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020. The decrease in interest income was primarily related to a decrease in average interest rates attributed to our marketable securities subsequent to September 30, 2020.

Other income (expense), net. Other income primarily consisted of income related to our investment in a joint venture with a third party. The loss was due to discrete engine overhaul expenses incurred by the joint venture party during the nine months ended September 30, 2021.

Provision for income taxes. For the nine months ended September 30, 2021, and 2020, our income tax provision rates were 26.1% and 27.1%, respectively, which include the statutory federal income tax rate of 21% and other reconciling income tax items, including state income taxes and the impact of non-deductible expenses. The decrease in the effective tax rate primarily relates to a lesser impact related to non-deductible expenses for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, as a result of higher pre-tax earnings for the nine months ended September 30, 2021, compared to the same period of 2020, partially offset by a $1.4 million discrete tax benefit from excess tax deductions generated from employee transactions that occurred during the nine months ended September 30, 2020.

Net income. Primarily due to the factors described above, we generated net income of 107.6 million, or $2.12 per diluted share, for the nine months ended September 30, 2021, compared to net income of $37.9 million, or $0.75 per diluted share, for the nine months ended September 30, 2020.

Our Business Segments

Three Months Ended September 30, 2021, and 2020

For the three months ended September 30, 2021, we had two reportable segments, which were the basis of our internal financial reporting: SkyWest Airlines and SkyWest Leasing. Our segment disclosure relates to components of our business for which separate financial information is available to, and regularly evaluated by, our chief operating decision maker.

	For the three months ended September 30,
	(dollar amounts in thousands)
	2021		2020		$ Change		% Change
Operating Revenues:
SkyWest Airlines operating revenue	$	614,377	$	337,975	$	276,402	81.8	%
SkyWest Leasing operating revenues		130,406		119,518		10,888	9.1	%
Total Operating Revenues	$	744,783	$	457,493	$	287,290	62.8	%
Airline Expenses:
SkyWest Airlines airline expense	$	635,307	$	306,009	$	329,298	107.6	%
SkyWest Leasing airline expense		91,406		107,081		(15,675)	(14.6)	%
Total Airline Expenses (1)	$	726,713	$	413,090	$	313,623	75.9	%
Segment profit:
SkyWest Airlines segment profit (loss)	$	(20,930)	$	31,966	$	(52,896)	NM
SkyWest Leasing profit		39,000		12,437		26,563	213.6	%
Total Segment Profit	$	18,070	$	44,403	$	(26,333)	(59.3)	%
Interest Income		238		1,403		(1,165)	(83.0)	%
Other Income (Expense), net		(4,098)		405		(4,503)	NM
Consolidated Income Before Taxes	$	14,210	$	46,211	$	(32,001)	(69.2)	%

NM = Not Meaningful

(1) Total Airline Expenses includes operating expense and interest expense

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SkyWest Airlines Segment Profit (Loss). SkyWest Airlines segment profit decreased $52.9 million for the three months ended September 30, 2021, compared to the three months ended September 30, 2020.

SkyWest Airlines block hour production increased to 370,462, or 66.5%, for the three months ended September 30, 2021, from 222,561 for the three months ended September 30, 2020, primarily due to demand recovery from reduced flight schedules in response to the COVID-19 pandemic. Significant items contributing to the SkyWest Airlines segment profit (loss) are set forth below.

SkyWest Airlines operating revenues increased $276.4 million, or 81.8%, from the three months ended September 30, 2020, to the three months ended September 30, 2021, due to increased flight schedules, increased passenger demand under our prorate agreements, and more flights we handled under our airport service agreements, collectively as a result of the demand recovery from the COVID-19 pandemic. Additionally, during the three months ended September 30, 2021, SkyWest Airlines recognized $19.2 million of previously deferred revenue received under our capacity purchase agreements compared to deferring revenue of $29.6 million during the three months ended September 30, 2020. SkyWest Airlines also provided temporary rate reductions to our major airline partners under our capacity purchase agreements during the three months ended September 30, 2021, and 2020.

SkyWest Airlines airline expense increased $329.3 million, or 107.6%, from the three months ended September 30, 2020, to the three months ended September 30, 2021, due to the following primary factors:

● SkyWest Airlines’ salaries, wages and benefits expense increased by $71.2 million, or 36.8%, primarily due to an increase in direct labor costs that resulted from a significantly higher number of flights we operated during the three months ended September 30, 2021, as a result of the ongoing COVID-19 demand recovery.

● SkyWest Airlines’ aircraft maintenance, materials and repairs expense increased by $54.8 million, or 36.7%, primarily due to an increase in direct maintenance costs incurred on a portion of SkyWest Airlines’ CRJ700 and CRJ200 fleets intended to extend the operational performance and reliability of its older aircraft, including increased engine maintenance expense for the three months ended September 30, 2021, compared to the three months ended September 30, 2020.

● SkyWest Airlines’ depreciation and amortization expense decreased by $6.3 million, or 10.5%, primarily due to certain CRJ200 aircraft that became fully depreciated during 2020, partially offset by an increase in depreciation expense related to the acquisition of used CRJ700 aircraft since September 30, 2020.

● SkyWest Airlines’ fuel expense increased $18.9 million, or 138.7%, due to an increase in the number of flights we operated under our prorate agreements and a corresponding increase in gallons of fuel we purchased and an increase in our average fuel cost per gallon from $1.75 for the three months ended September 30, 2020, to $2.55 for the three months ended September 30, 2021.

● SkyWest Airlines recorded a non-cash impairment charge on its CRJ900 aircraft of $84.6 million. See the Operating Expenses section of “Results of Operations – Three months ended September 30, 2021, and 2020” for further discussion on the impairment charge recorded for the three months ended September 30, 2021.

● SkyWest Airlines recognized $115.4 million in payroll support grant proceeds as a reduction to our operating expenses for the three months ended September 30, 2021, compared to $190.2 million recognized for the three months ended September 30, 2020.

● SkyWest Airlines’ remaining airline expenses increased $31.2 million, or 39.0%, primarily related to an increase in other operating costs that correspond to the higher number of flights we operated for the three months ended September 30, 2021, compared to the three months ended September 30, 2020, such as crew per diem, crew hotel costs and simulator costs.

SkyWest Leasing Segment Profit. SkyWest Leasing profit increased $26.6 million, or 213.6%, during the three months ended September 30, 2021, compared to the three months ended September 30, 2020, primarily due to the

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increase in aircraft leased to third parties and the acquisition of ten new E175 aircraft added to our fleet subsequent to September 30, 2020.

Nine Months Ended September 30, 2021, and 2020

For the nine months ended September 30, 2021, we had two reportable segments, which were the basis of our internal financial reporting: SkyWest Airlines and SkyWest Leasing. Our segment disclosure relates to components of our business for which separate financial information is available to, and regularly evaluated by, our chief operating decision maker.

	For the nine months ended September 30,
	(dollar amounts in thousands)
	2021		2020		$ Change		% Change
Operating Revenues:
SkyWest Airlines operating revenue	$	1,548,422	$	1,172,625	$	375,797	32.0	%
SkyWest Leasing operating revenues		387,906		364,844		23,062	6.3	%
Total Operating Revenues	$	1,936,328	$	1,537,469	$	398,859	25.9	%
Airline Expenses:
SkyWest Airlines airline expense	$	1,509,713	$	1,181,999	$	327,714	27.7	%
SkyWest Leasing airline expense		277,974		310,279		(32,305)	(10.4)	%
Total Airline Expenses (1)	$	1,787,687	$	1,492,278	$	295,409	19.8	%
Segment profit:
SkyWest Airlines segment profit (loss)	$	38,709	$	(9,374)	$	48,083	NM
SkyWest Leasing profit		109,932		54,565		55,367	101.5	%
Total Segment Profit	$	148,641	$	45,191	$	103,450	228.9	%
Interest Income		732		5,652		(4,920)	(87.0)	%
Other Income (Expense), net		(3,802)		1,205		(5,007)	NM
Consolidated Income Before Taxes	$	145,571	$	52,048	$	93,523	179.7	%

NM = Not Meaningful

(1) Total Airline Expenses includes operating expense and interest expense

SkyWest Airlines Segment Profit. SkyWest Airlines segment profit increased $48.1 million for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020.

SkyWest Airlines block hour production increased to 970,689, or 37.5%, for the nine months ended September 30, 2021, from 705,810 for the nine months ended September 30, 2020, primarily due to demand recovery from reduced flight schedules in response to the COVID-19 pandemic. Significant items contributing to the SkyWest Airlines segment profit are set forth below.

SkyWest Airlines operating revenues increased $375.8 million, or 32.0%, from the nine months ended September 30, 2020, to the nine months ended September 30, 2021, due to increased flight schedules, increased passenger demand under our prorate agreements, and more flights we handled under our airport service agreements, collectively as a result of the demand recovery from the COVID-19 pandemic. SkyWest Airlines deferred revenue of $7.7 million of payments received under our capacity purchase agreements during the nine months ended September 30, 2021, compared to deferred revenue of $98.6 million recorded during the nine months ended September 30, 2020. SkyWest Airlines also provided temporary rate reductions to our major airline partners under our capacity purchase agreements during the nine months ended September 30, 2021, and nine months ended September 30, 2020.

SkyWest Airlines airline expense increased $327.7 million, or 27.7%, from the nine months ended September 30, 2020, to the nine months ended September 30, 2021, due to the following primary factors:

● SkyWest Airlines’ salaries, wages and benefits expense increased by $105.4 million, or 17.2%, primarily due to an increase in direct labor costs that resulted from a significantly higher number of flights we operated during the nine months ended September 30, 2021, as a result of the ongoing COVID-19 demand recovery.

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● SkyWest Airlines’ aircraft maintenance, materials and repairs expense increased by $165.6 million, or 39.2%, primarily due to an increase in direct maintenance costs incurred on a portion of SkyWest Airlines’ CRJ700 and CRJ200 fleets intended to extend the operational performance and reliability of these older aircraft, including increased engine maintenance expense for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020.

● SkyWest Airlines’ depreciation and amortization expense decreased by $14.0 million, or 8.2%, primarily due to certain CRJ200 aircraft that became fully depreciated during 2020, partially offset by an increase in depreciation expense related to the acquisition of used CRJ700 aircraft since September 30, 2020.

● SkyWest Airlines’ fuel expense increased $31.7 million, or 69.2%, due to an increase in the number of flights we operated under our prorate agreements and a corresponding increase in gallons of fuel we purchased and an increase in our average fuel cost per gallon from $1.92 for the nine months ended September 30, 2020, to $2.37 for the nine months ended September 30, 2021.

● SkyWest Airlines recorded a non-cash impairment charge on its CRJ900 aircraft of $84.6 million. See the Operating Expenses section of “Results of Operations – Nine months ended September 30, 2021, and 2020” for further discussion on the impairment charge recorded for the nine months ended September 30, 2021.

● SkyWest Airlines recognized $422.7 million in payroll support grant proceeds as a reduction to our operating expenses for the nine months ended September 30, 2021, compared to $342.1 million recognized for the nine months ended September 30, 2020.

● SkyWest Airlines’ remaining airline expenses increased $34.8 million, or 12.7%, primarily related to an increase in other operating costs that correspond to the higher number of flights we operated for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, such as crew per diem, crew hotel costs and simulator costs.

SkyWest Leasing Segment Profit. SkyWest Leasing profit increased $55.4 million, or 101.5%, during the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, primarily due to the increase in aircraft leased to third parties and the acquisition of ten new E175 aircraft added to our fleet subsequent to September 30, 2020.

Liquidity and Capital Resources

As of September 30, 2021, we had $912.5 million in cash and cash equivalents and marketable securities. As of September 30, 2021, we had $41.0 million available for borrowings under our line of credit. Given our available liquidity as of September 30, 2021, and given the measures we have implemented to reduce the impact of the COVID-19 pandemic on our financial position and operations, we believe the working capital currently available to us will be sufficient to meet our present financial requirements, including planned capital expenditures, scheduled lease payments, debt service obligations for at least the next 12 months.

Our total cash and marketable securities increased from $825.9 million as December 31, 2020, to $912.5 million as of September 30, 2021, or by $86.6 million. Our total long-term debt, including current maturities decreased from $3,203.7 million as of December 31, 2020, to $2,965.0 million as of September 30, 2021, or by $238.7 million. Thus, our total long-term debt, net of cash and marketable securities, decreased from $2,377.8 million as of December 31, 2020, to $2,052.5 million as of September 30, 2021, or $325.3 million. At September 30, 2021, our total capital mix was 46.5% equity and 53.5% long-term debt, compared to 43.3% equity and 56.7% long-term debt at December 31, 2020.

As of September 30, 2021, and December 31, 2020, we had $59.5 million and $61.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions. We had no restricted cash as of September 30, 2021, and December 31, 2020.

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Sources and Uses of Cash

Cash Position and Liquidity. The following table provides a summary of the net cash provided by (used in) our operating, investing and financing activities for the nine months ended September 30, 2021, and 2020, and our total cash and marketable securities positions as of September 30, 2021, and December 31, 2020 (in thousands):

	For the nine months ended September 30,
	2021		2020		$ Change		% Change
Net cash provided by operating activities	$	686,955	$	548,703	$	138,252	25.2	%
Net cash used in investing activities		(396,785)		(261,447)		(135,338)	51.8	%
Net cash provided by (used in) financing activities		(234,062)		43,766		(277,828)	(634.8)	%

	September 30,		December 31,
	2021		2020		$ Change		% Change
Cash and cash equivalents	$	271,831	$	215,723	$	56,108	26.0	%
Marketable securities		640,673		610,185		30,488	5.0	%
Total	$	912,504	$	825,908	$	86,596	10.5	%

Cash Flows provided by Operating Activities

Our cash flows provided by operating activities was $687.0 million for the nine months ended September 30, 2021, compared to $548.7 million for the nine months ended September 30, 2020. Our operating cash flows are typically impacted by various factors including our net income, adjusted for non-cash expenses and gains such as depreciation expense, stock-based compensation expense, and gains or losses on the disposal of assets; and timing of cash payments and cash receipts attributed to our various current asset and liability accounts, such as accounts receivable, inventory, accounts payable, accrued liabilities, deferred revenue and deferred payroll support grant proceeds.

The increase in our cash flow from operations for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, was primarily due an increase in net income from $37.9 million for the nine months ended September 30, 2020, to $107.6 million for the nine months ended September 30, 2021, and a non-cash impairment charge of $84.6 recorded during the nine months ended September 30, 2021. The cash provided by these operating activities were partially offset by a reduction in depreciation expense and deferred revenue, and changes in our current asset and liability accounts, primarily due to the timing of cash payments and cash receipts for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020. The operating cash flows for the nine months ended September 30, 2021, and 2020 also included the benefit from the payroll support grant of $422.7 million and $342.1 million, respectively, partially offset by temporary rate reductions provided to our major airline partners during the nine months ended September 30, 2021, and 2020.

Cash Flows used in Investing Activities

Our cash flows used in investing activities was $396.8 million for the nine months ended September 30, 2021, compared to cash flows used in investing activities of $261.4 million for the nine months ended September 30, 2020. Our investing cash flows are typically impacted by various factors including our capital expenditures, such as the acquisition of aircraft and spare engines; deposit payments and refunds of previously made deposits on new aircraft; purchase and sales of marketable securities; proceeds from the sale of assets; and timing of cash payments and cash receipts attributed to our various long-term asset and long-term liability accounts.

The increase in our cash flow used in investing activities for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, was primarily due to an increase in cash used for purchases of marketable securities, net of sales of marketable securities, of $30.5 million for the nine months ended September 30, 2021, from $29.2 million in cash provided by sales of marketable securities, net of purchases of marketable securities, for the nine months ended September 30, 2020, an increase in deposits on aircraft from $0.6 million for the nine months ended September 30, 2020, to $100.1 million for the nine months ended September 30, 2021, offset by a decrease in our long-term assets resulting from timing of payments received from our major airline partners attributed to our long-term

38

receivables. In 2020, we amended certain debt agreements on our aircraft which suspended our obligation to make debt service payments for an approximately six-month period during 2020. Concurrently, we suspended required aircraft ownership payments due to us from our major airline partners under our capacity purchase agreements during the same period. We anticipate collecting the payments on these long-term receivables from our major airline partners over the remaining contract terms.

Cash Flows provided by (used in) Financing Activities

Our cash flows used in financing activities was $234.1 million for the nine months ended September 30, 2021, compared to cash provided by financing activities of $43.8 million for the nine months ended September 30, 2020. Our financing cash flows are typically impacted by various factors including proceeds from issuance of debt, principal payments on debt obligations, repurchases of our common stock and payment of cash dividends.

The $277.8 million increase in cash used in financing activities for the nine months ended September 30, 2021, compared to the nine months ended September 30, 2020, was primarily due to an increase of $331.3 million in principal payments on long-term debt primarily due the additional E175 aircraft acquired subsequent to September 30, 2020, repayment of the $60 million U.S. Treasury secured loan, and early repayment of $80.1 million in aircraft debt. The increase was offset by a reduction in cash used to purchase treasury stock and payment of dividends by $20.0 million and $13.1 million, respectively, due to restrictions under our loan agreements with U.S. Treasury.

Significant Commitments and Obligations

General

See Note 7, "Leases, Commitments and Contingencies," to the condensed consolidated financial statements for our commitments and obligations for each of the next five years and thereafter.

Purchase Commitments and Options

As of September 30, 2021, we had a firm purchase commitment for 39 new E175 aircraft from Embraer with delivery dates anticipated into the first half of 2023. We also have a firm purchase commitment to purchase seven used CRJ700 aircraft with anticipated delivery dates by the end of 2021.

At the time of each aircraft acquisition, we evaluate the financing alternatives available to us, and select one or more of these methods to fund the acquisition. In recent years, we have issued long-term debt to finance our new aircraft. At present, we intend to fund our aircraft purchase commitments through cash on hand and debt financing. Based on current market conditions and discussions with prospective leasing organizations and financial institutions, we currently believe that we will be able to obtain financing for our committed acquisitions, as well as additional aircraft. We intend to finance the firm purchase commitment for 39 E175 aircraft with approximately 80-85% debt and the remaining balance with cash. We intend to fund the purchase of the seven used CRJ700 aircraft through cash on hand.

Long-term Debt Obligations

As of September 30, 2021, we had $2.8 billion of long-term debt obligations related to the acquisition of aircraft and certain spare engines. The average effective interest rate on those long-term debt obligations was approximately 4.0% at September 30, 2021. We also had $200.6 million of long-term debt obligations under the Payroll Support Program Agreement, PSP Extension Agreement, and Payroll Support Program 3 Agreement with U.S. Treasury.

Under our capacity purchase agreements, the major airline partners compensate us for our costs of owning or leasing the aircraft on a monthly basis. The aircraft compensation structure varies by agreement, but is intended to cover either our aircraft principal and interest debt service costs, our aircraft depreciation and interest expense or our aircraft lease expense costs while the aircraft is under contract.

39

Guarantees

We have guaranteed the obligations of SkyWest Airlines under the United Express Agreement and the Delta Connection Agreement for the E175 aircraft. In addition, we have guaranteed certain other obligations under SkyWest Airlines’ aircraft financing and leasing agreements.

Seasonality

Our results of operations for any interim period are not necessarily indicative of those for an entire year, since the airline industry is subject to seasonal fluctuations and general economic conditions. Our operations are somewhat favorably affected by increased travel on our prorate routes, historically occurring during the summer months, and unfavorably affected by decreased travel during the months November through February and by inclement weather, which may occasionally or frequently, depending on the severity of the inclement weather in any given winter, result in cancelled flights during the winter months. The COVID-19 pandemic is anticipated to continue to negatively impact our schedule compared to 2019 schedules (pre-COVID period). The magnitude of the impact will depend on various factors including passenger demand and the related flight schedules we are requested to operate by our major airline partners under our capacity purchase agreements.

ITEM 3: QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Aircraft Fuel

Prior to COVID-19, we did not experience significant difficulties with fuel availability. Recently, some of our fuel service providers have experienced logistical challenges transporting fuel to certain airports, that resulted in isolated levels of disruption to our operations. Although there is no assurance such challenges will not get worse in the future, we currently anticipate we will be able to obtain fuel at prevailing prices in quantities sufficient to meet our needs. Pursuant to our contract flying arrangements, United, Delta, American and Alaska agreed to bear the economic risk of fuel price fluctuations on our contracted flights. We bear the economic risk of fuel price fluctuations on our prorate operations. For the nine months ended September 30, 2021, approximately 16.1% of our total flying agreements revenue was derived from prorate agreements. For the nine months ended September 30, 2021, the average price per gallon of aircraft fuel was $2.37. For illustrative purposes only, we have estimated the impact of the market risk of fuel price fluctuations on our prorate operations using a hypothetical increase of 25% in the price per gallon we purchase. Based on this hypothetical assumption, we would have incurred an additional $19.4 million in fuel expense for the nine months ended September 30, 2021.

Interest Rates

As of September 30, 2021, our long-term debt had fixed interest rates. We currently intend to finance the acquisition of new aircraft through manufacturer financing or long-term borrowings. Changes in interest rates may impact the actual cost to us to acquire future aircraft. To the extent we place new aircraft in service under our capacity purchase agreements with United, Delta, American, Alaska or other carriers, our capacity purchase agreements currently provide that reimbursement rates will be adjusted to reflect the interest rates effective at the closing of the respective aircraft financing.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Our management, including our Chief Executive Officer and Chief Financial Officer, performed an evaluation of our disclosure controls and procedures, which have been designed to ensure that information we are required to disclose in the reports we file or submit under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is recorded, processed, summarized and reported, within the time periods specified in the rules and forms of the SEC. Our management, including our Chief Executive Officer and Chief Financial Officer, concluded that, as of September 30, 2021, those controls and procedures were effective to ensure that information we are required to disclose in the reports

40

we file or submit under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control

During the nine months ended September 30, 2021, there were no changes in our internal control over financial reporting that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f) under the Exchange Act).

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are subject to certain legal actions which we consider routine to our business activities. As of September 30, 2021, our management believed, after consultation with legal counsel, that the ultimate outcome of such legal matters was not likely to have a material adverse effect on our financial position, liquidity or results of operations.

ITEM 1A. RISK FACTORS

In addition to the other information set forth in this Report, you should carefully consider the factors discussed in Part I, Item 1A, “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2020, and in our other filings with the SEC, which factors could materially affect our business, financial condition and results of operations. The risks described in our reports filed with the SEC are not the only risks facing our company. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and results of operations.

ITEM 6. EXHIBITS

31.1	Certification of Chief Executive Officer
31.2	Certification of Chief Financial Officer
32.1	Certification of Chief Executive Officer
32.2	Certification of Chief Financial Officer
101.INS	XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

41

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this Quarterly Report on Form 10-Q for the quarter ended September 30, 2021, to be signed on its behalf by the undersigned, thereunto duly authorized, on November 4, 2021.

SKYWEST, INC.
By	/s/ Robert J. Simmons
	Robert J. Simmons
	Chief Financial Officer

42

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Russell A. Childs, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of SkyWest, Inc. for the quarter ended September 30, 2021.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of and for the periods presented in this report.

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

ay

Date: November 4, 2021

/s/ Russell A. Childs

Russell A. Childs

Chief Executive Officer and President

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Robert J. Simmons, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of SkyWest, Inc. for the quarter ended September 30, 2021.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of and for the periods presented in this report.

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 4, 2021

/s/ Robert J. Simmons

Robert J. Simmons

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of SkyWest, Inc. (the “Company”) for the quarter ended September 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Russell A. Childs, Chief Executive Officer and President of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Russell A. Childs

Russell A. Childs

Chief Executive Officer and President

November 4, 2021

This certification accompanies the Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT
TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of SkyWest, Inc. (the “Company”) for the quarter ended September 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert J. Simmons, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Robert J. Simmons

Robert J. Simmons

Chief Financial Officer

November 4, 2021

This certification accompanies the Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Oct. 29, 2021
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	0-14719
Entity Registrant Name	SKYWEST INC
Entity Incorporation, State or Country Code	UT
Entity Tax Identification Number	87-0292166
Entity Address, Address Line One	444 South River Road
Entity Address, City or Town	St. George
Entity Address, State or Province	UT
Entity Address, Postal Zip Code	84790
City Area Code	435
Local Phone Number	634-3000
Title of 12(b) Security	Common Stock, No Par Value
Trading Symbol	SKYW
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		50,379,923
Entity Central Index Key	0000793733
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 271,831	$ 215,723
Marketable securities	640,673	610,185
Receivables, net	56,320	34,462
Inventories, net	98,763	91,196
Other current assets	29,080	31,236
Total current assets	1,096,667	982,802
PROPERTY AND EQUIPMENT:
Aircraft and rotable spares	7,529,226	7,527,555
Deposits on aircraft	121,293	31,625
Buildings and ground equipment	256,348	258,863
Total property and equipment, gross	7,906,867	7,818,043
Less-accumulated depreciation and amortization	(2,621,410)	(2,455,995)
Total property and equipment, net	5,285,457	5,362,048
OTHER ASSETS:
Operating lease right-of-use assets	248,576	282,362
Long-term receivables and other assets	309,802	260,410
Total other assets	558,378	542,772
Total assets	6,940,502	6,887,622
CURRENT LIABILITIES:
Current maturities of long-term debt	359,888	402,158
Accounts payable	427,903	278,677
Accrued salaries, wages and benefits	146,947	125,944
Current maturities of operating lease liabilities	78,188	82,641
Taxes other than income taxes	30,333	26,183
Other current liabilities	94,496	26,119
Total current liabilities	1,137,755	941,722
LONG-TERM DEBT, net of current maturities	2,605,063	2,801,538
DEFERRED INCOME TAXES PAYABLE	657,067	625,931
NONCURRENT OPERATING LEASE LIABILITIES	171,443	205,845
OTHER LONG-TERM LIABILITIES	107,367	173,041
COMMITMENTS AND CONTINGENCIES (Note 7)
STOCKHOLDERS' EQUITY:
Preferred stock, 5,000,000 shares authorized; none issued
Common stock, no par value, 120,000,000 shares authorized; 82,335,782 and 82,094,985 shares issued as of September 30, 2021, and December 31, 2020, respectively	720,932	704,675
Retained earnings	2,159,584	2,052,006
Treasury stock, at cost, 31,955,991 and 31,913,635 shares as of September 30, 2021, and December 31, 2020, respectively	(618,709)	(617,136)
Total stockholders' equity	2,261,807	2,139,545
Total liabilities and stockholders' equity	$ 6,940,502	$ 6,887,622

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2021	Dec. 31, 2020
CONSOLIDATED BALANCE SHEETS
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized	120,000,000	120,000,000
Common stock, shares issued	82,335,782	82,094,985
Treasury stock, at cost, shares	31,955,991	31,913,635

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
OPERATING REVENUES:
Total operating revenues	$ 744,783	$ 457,493	$ 1,936,328	$ 1,537,469
OPERATING EXPENSES:
Salaries, wages and benefits	265,603	194,516	718,868	613,895
Aircraft maintenance, materials and repairs	209,795	150,148	604,501	431,654
Depreciation and amortization	109,597	121,467	329,089	364,813
Airport-related expenses	25,992	18,003	72,478	70,192
Aircraft fuel	32,561	13,641	77,622	45,875
Aircraft rentals	16,098	15,785	47,311	49,537
Special items - impairment charges	84,592		84,592
Payroll support grant	(115,352)	(190,200)	(422,669)	(342,138)
Other operating expenses	68,847	59,580	181,621	167,170
Total operating expenses	697,733	382,940	1,693,413	1,400,998
OPERATING INCOME	47,050	74,553	242,915	136,471
OTHER INCOME (EXPENSE):
Interest income	238	1,403	732	5,652
Interest expense	(28,980)	(30,150)	(94,274)	(91,280)
Other income (expense), net	(4,098)	405	(3,802)	1,205
Total other expense, net	(32,840)	(28,342)	(97,344)	(84,423)
INCOME BEFORE INCOME TAXES	14,210	46,211	145,571	52,048
PROVISION FOR INCOME TAXES	4,526	12,549	37,993	14,113
NET INCOME	$ 9,684	$ 33,662	$ 107,578	$ 37,935
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.19	$ 0.67	$ 2.14	$ 0.76
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.19	$ 0.66	$ 2.12	$ 0.75
Weighted average common shares:
Basic (in shares)	50,380	50,181	50,337	50,199
Diluted (in shares)	50,725	50,622	50,726	50,445
COMPREHENSIVE INCOME:
Net income	$ 9,684	$ 33,662	$ 107,578	$ 37,935
Net unrealized depreciation on marketable securities, net of taxes		(307)
TOTAL COMPREHENSIVE INCOME	9,684	33,355	107,578	37,935
Flying agreements
OPERATING REVENUES:
Total operating revenues	719,084	445,048	1,863,242	1,490,912
Lease, airport services and other
OPERATING REVENUES:
Total operating revenues	$ 25,699	$ 12,445	$ 73,086	$ 46,557

XML

CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock Cumulative Effect, Period of Adoption, as Adjusted	Common Stock	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings Cumulative Effect, Period of Adoption, as Adjusted	Retained Earnings	Treasury Stock Cumulative Effect, Period of Adoption, as Adjusted	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, as Adjusted	Total
Balance at Dec. 31, 2019	$ 686,806	$ 686,806	$ (11,639)	$ 2,067,540	$ 2,079,179	$ (590,971)	$ (590,971)		$ (11,639)	$ 2,163,375	$ 2,175,014
Balance (in shares) at Dec. 31, 2019	81,743	81,743				(31,420)	(31,420)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					29,988						29,988
Exercise of common stock options and vested employee stock awards		$ 38									38
Exercise of common stock options and vested employee stock awards (in shares)		287
Employee income tax paid on vested equity awards							$ (6,165)				(6,165)
Employee income tax paid on vested equity awards (in shares)							(108)
Sale of common stock under employee stock purchase plan		$ 1,494									1,494
Sale of common stock under employee stock purchase plan (in shares)		24
Stock based compensation expense		$ 1,727									1,727
Treasury stock purchases							$ (20,000)				(20,000)
Treasury stock purchases (in shares)							(386)
Cash dividends declared ($0.14 per share)					(7,019)						(7,019)
Balance at Mar. 31, 2020		$ 690,065			2,090,509		$ (617,136)				2,163,438
Balance (in shares) at Mar. 31, 2020		82,054					(31,914)
Balance at Dec. 31, 2019	$ 686,806	$ 686,806	$ (11,639)	$ 2,067,540	2,079,179	$ (590,971)	$ (590,971)		$ (11,639)	$ 2,163,375	2,175,014
Balance (in shares) at Dec. 31, 2019	81,743	81,743				(31,420)	(31,420)
Increase (Decrease) in Stockholders' Equity
Net income (loss)											37,935
Balance at Sep. 30, 2020		$ 703,780			2,098,456		$ (617,136)				2,185,100
Balance (in shares) at Sep. 30, 2020		82,095					(31,914)
Balance at Mar. 31, 2020		$ 690,065			2,090,509		$ (617,136)				2,163,438
Balance (in shares) at Mar. 31, 2020		82,054					(31,914)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					(25,715)						(25,715)
Stock based compensation expense		$ 2,087									2,087
Warrants issued to U.S. Treasury		2,845									2,845
Net unrealized appreciation on marketable securities, net of tax								$ 307			307
Balance at Jun. 30, 2020		$ 694,997			2,064,794		$ (617,136)	307			2,142,962
Balance (in shares) at Jun. 30, 2020		82,054					(31,914)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					33,662						33,662
Sale of common stock under employee stock purchase plan		$ 1,287									1,287
Sale of common stock under employee stock purchase plan (in shares)		41
Stock based compensation expense		$ 2,093									2,093
Warrants issued to U.S. Treasury		5,403									5,403
Net unrealized appreciation on marketable securities, net of tax								$ (307)			(307)
Balance at Sep. 30, 2020		$ 703,780			2,098,456		$ (617,136)				2,185,100
Balance (in shares) at Sep. 30, 2020		82,095					(31,914)
Balance at Dec. 31, 2020		$ 704,675			2,052,006		$ (617,136)				2,139,545
Balance (in shares) at Dec. 31, 2020		82,095					(31,914)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					35,900						35,900
Exercise of common stock options and vested employee stock awards		$ 606									606
Exercise of common stock options and vested employee stock awards (in shares)		177
Employee income tax paid on vested equity awards							$ (1,573)				(1,573)
Employee income tax paid on vested equity awards (in shares)							(42)
Sale of common stock under employee stock purchase plan		$ 1,139									1,139
Sale of common stock under employee stock purchase plan (in shares)		30
Stock based compensation expense		$ 2,613									2,613
Warrants issued to U.S. Treasury		3,291									3,291
Balance at Mar. 31, 2021		$ 712,324			2,087,906		$ (618,709)				2,181,521
Balance (in shares) at Mar. 31, 2021		82,302					(31,956)
Balance at Dec. 31, 2020		$ 704,675			2,052,006		$ (617,136)				2,139,545
Balance (in shares) at Dec. 31, 2020		82,095					(31,914)
Increase (Decrease) in Stockholders' Equity
Net income (loss)											107,578
Balance at Sep. 30, 2021		$ 720,932			2,159,584		$ (618,709)				2,261,807
Balance (in shares) at Sep. 30, 2021		82,336					(31,956)
Balance at Mar. 31, 2021		$ 712,324			2,087,906		$ (618,709)				2,181,521
Balance (in shares) at Mar. 31, 2021		82,302					(31,956)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					61,994						61,994
Stock based compensation expense		$ 2,877									2,877
Warrants issued to U.S. Treasury		2,513									2,513
Balance at Jun. 30, 2021		$ 717,714			2,149,900		$ (618,709)				2,248,905
Balance (in shares) at Jun. 30, 2021		82,302					(31,956)
Increase (Decrease) in Stockholders' Equity
Net income (loss)					9,684						9,684
Sale of common stock under employee stock purchase plan		$ 1,401									1,401
Sale of common stock under employee stock purchase plan (in shares)		34
Stock based compensation expense		$ 1,817									1,817
Balance at Sep. 30, 2021		$ 720,932			$ 2,159,584		$ (618,709)				$ 2,261,807
Balance (in shares) at Sep. 30, 2021		82,336					(31,956)

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY
Cash dividends declared (in dollars per share)			$ 0.14
Net unrealized appreciation (depreciation) on marketable securities, tax	$ (99)	$ 99

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
NET CASH PROVIDED BY OPERATING ACTIVITIES	$ 686,955	$ 548,703
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of marketable securities	(1,071,637)	(848,897)
Sales of marketable securities	1,041,149	878,070
Acquisition of property and equipment:
Aircraft and rotable spare parts	(223,605)	(170,392)
Buildings and ground equipment	(10,473)	(9,398)
Proceeds from the sale of property and equipment	7,104	1,612
Deposits on aircraft	(100,105)	(625)
Aircraft deposits applied towards acquired aircraft	10,987	9,220
Increase in other assets	(50,205)	(121,037)
NET CASH USED IN INVESTING ACTIVITIES	(396,785)	(261,447)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of long-term debt	213,326	201,285
Principal payments on long-term debt	(448,466)	(117,182)
Net proceeds from issuance of common stock	3,146	2,819
Purchase of treasury stock		(20,000)
Employee income tax paid on vested equity awards	(1,573)	(6,165)
Payment of debt issuance cost	(495)	(3,932)
Payment of cash dividends		(13,059)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(234,062)	43,766
Increase in cash and cash equivalents	56,108	331,022
Cash and cash equivalents at beginning of period	215,723	87,206
CASH AND CASH EQUIVALENTS AT END OF PERIOD	271,831	418,228
Non-cash investing and financing activities:
Acquisition of property and equipment	13,168	8,531
Warrants issued to U.S. Treasury	5,804	8,248
Cash paid during the period for:
Interest, net of capitalized amounts	96,397	95,999
Income taxes	$ 6,374	$ 371

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Condensed Consolidated Financial Statements

9 Months Ended

Sep. 30, 2021

Condensed Consolidated Financial Statements

Condensed Consolidated Financial Statements

(1) Condensed Consolidated Financial Statements

Basis of Presentation

The condensed consolidated financial statements of SkyWest, Inc. (“SkyWest” or the “Company”) and its operating subsidiary SkyWest Airlines, Inc. (“SkyWest Airlines”) and its leasing subsidiary SkyWest Leasing, Inc. (“SkyWest Leasing”) included herein have been prepared, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the following disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements reflect all adjustments that, in the opinion of management, are necessary to present fairly the results of operations for the interim periods presented. All adjustments are of a normal recurring nature, unless otherwise disclosed. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Due in part to the volatile effects from the global COVID-19 pandemic, in addition to other factors, the results of operations for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ending December 31, 2021.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates and assumptions.

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Impact of the COVID-19 Pandemic

9 Months Ended

Sep. 30, 2021

Impact of the COVID-19 Pandemic

Impact of the COVID-19 Pandemic

(2) Impact of the COVID-19 Pandemic

COVID-19, which was declared a global health pandemic by the World Health Organization in March 2020, has had a significant, negative impact on the Company’s business and financial results beginning in March 2020 and has materially and adversely affected the Company’s revenues, particularly under its prorate agreements. The Company operated 137,493 flights during the third quarter of 2020, which increased to 210,251 flights, or 52.9%, during the third quarter of 2021. However, the Company operated 219,272 flights during the third quarter of 2019 and the Company has not returned to pre-COVID flight levels as of September 30, 2021. The rate of recovery from the impact of COVID-19 and whether such recovery will be sustained are uncertain as factors outside of the Company’s control, including the distribution and efficacy of vaccines, government-imposed vaccine mandates, new variants of the virus, and continued or new government travel restrictions, cannot be estimated.

Liquidity. At September 30, 2021, the Company had $953.5 million in total available liquidity, consisting of $912.5 million in cash and marketable securities, and $41.0 million available under SkyWest Airlines’ line of credit with a bank.

2021 Appropriations Act. In January 2021, SkyWest Airlines entered into a Payroll Support Program Extension Agreement (the “PSP Extension Agreement”) with the U.S. Department of the Treasury (“U.S. Treasury”) with respect to a payroll grant program under the Consolidated Appropriations Act, 2021 (“2021 Appropriations Act”). Pursuant to the PSP Extension Agreement, SkyWest Airlines received $268.1 million from U.S. Treasury during the nine months ended September 30, 2021.

In connection with the receipt of financial assistance under the PSP Extension Agreement, SkyWest Airlines is required to comply with the relevant provisions of the 2021 Appropriations Act, many of which are substantially similar to the requirements placed on SkyWest Airlines by the Payroll Support Program under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) that the Company entered into with U.S. Treasury in April 2020.

The PSP Extension Agreement payments received included $217.7 million in the form of a payroll grant and $50.4 million in the form of an unsecured 10-year loan. The loan bears interest at an annual rate of 1.00% for the first five years (through January 2026) and the Secured Overnight Financing Rate plus 2.00% in the final five years. In return, the Company issued to U.S. Treasury warrants to purchase up to 124,773 shares of the Company’s common stock. These warrants have an exercise price of $40.41 per share and a five-year term from the date of issuance.

The relative fair value of the warrants is recorded within stockholder's equity and as a discount reducing the carrying value of the loan, which will be amortized as interest expense in the Company’s income statement over the term of the loan. The proceeds of the grant were recorded in cash and cash equivalents when received and were recognized as a reduction in expense in payroll support grant in the Company’s income statement over the periods that the funds were intended to compensate. The Company recorded $217.7 million of the PSP Extension Agreement payroll grant as an offset to operating expenses for the nine months ended September 30, 2021.

American Rescue Plan Act of 2021. On April 23, 2021, SkyWest Airlines entered into a Payroll Support Program 3 Agreement (the “PSP 3 Agreement”) with U.S. Treasury with respect to a payroll grant program under the American Rescue Plan Act of 2021 (“American Rescue Plan Act”). Pursuant to the PSP 3 Agreement, SkyWest Airlines received from U.S. Treasury approximately $250.0 million during the nine months ended September 30, 2021.

In connection with the receipt of financial assistance under the PSP 3 Agreement, SkyWest Airlines is required to comply with the relevant provisions of the American Rescue Plan Act, many of which are substantially similar to the requirements placed on SkyWest Airlines by the Payroll Support Program Agreement under the CARES Act and the PSP Extension Agreement under the 2021 Appropriations Act. The relevant provisions include the requirement that the funding be used exclusively for the continuation of payment of employee wages, salaries and benefits. Similar to the previous Payroll Support Programs, SkyWest Airlines and, in some cases, the Company is also subject to certain restrictions, including, but not limited to, limitations on involuntary terminations, pay rate reductions and furloughs through September 30, 2021, restrictions on the payment of dividends and the repurchase of shares through September 30, 2022, and certain limitations on executive compensation through April 1, 2023.

The PSP 3 Agreement payments received through September 30, 2021, included $205.0 million in the form of a payroll grant and $45.0 million in the form of an unsecured 10-year loan. The loan bears interest at an annual rate of 1.00% for the first five years (through April 2026) and the Secured Overnight Financing Rate plus 2.00% in the final five years. In return, the Company issued to U.S. Treasury warrants to purchase up to 78,317 shares of the Company’s common stock. These warrants have an exercise price of $57.47 per share and a five-year term from the date of issuance.

The relative fair value of the warrants is recorded within stockholder's equity and as a discount reducing the carrying value of the loan, which will be amortized as interest expense in the Company’s income statement over the term of the loan. The proceeds of the grant were recorded in cash and cash equivalents when received and were recognized as a reduction in expense in payroll support grant in the Company’s income statement over the periods that the funds are intended to compensate. The Company recorded $205.0 million of the PSP 3 Agreement payroll grant as an offset to operating expenses for the nine months ended September 30, 2021.

As of September 30, 2021, the Company has recognized all of the payroll grants received from U.S. Treasury as an offset to operating expenses.

Treasury Secured Loan. In January 2021, the Company amended the secured loan agreement with U.S. Treasury to extend the deadline pursuant to which SkyWest Airlines could, at its discretion, borrow additional amounts under the facility from March 26, 2021, to May 28, 2021. The other terms of the secured loan agreement were not affected. On May 10, 2021, the Company repaid all amounts outstanding under the secured loan, and in connection with such repayment, terminated the secured loan agreement. The total repayment amount was $61.2 million, which included all outstanding principal and accrued interest under the secured loan. As a result of the repayment, the collateral securing the obligations of SkyWest Airlines under the loan agreement, consisting of aircraft engines and aircraft parts, was released.

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Flying Agreements Revenue and Lease, Airport Services and Other Revenues

9 Months Ended

Sep. 30, 2021

Flying Agreements Revenue and Lease, Airport Services and Other Revenues

Flying Agreements Revenue and Lease, Airport Services and Other Revenues

(3) Flying Agreements Revenue and Lease, Airport Services and Other Revenues

The Company recognizes flying agreements revenue and lease, airport services and other revenues when the service is provided under the applicable agreement. Under the Company’s fixed-fee arrangements (referred to as “capacity purchase agreements”) with United Airlines, Inc. (“United”), Delta Air Lines, Inc. (“Delta”), American Airlines, Inc. (“American”) and Alaska Airlines, Inc. (“Alaska”) (each, a “major airline partner”), the major airline partner generally pays the Company a fixed-fee for each departure, flight hour (measured from takeoff to landing, excluding taxi time) or block hour (measured from takeoff to landing, including taxi time) incurred, and an amount per aircraft in service each month with additional incentives based on flight completion and on-time performance. The major airline partner also directly pays for or reimburses the Company for certain direct expenses incurred under the capacity purchase agreement, such as fuel, airport landing fees and airport rents. Under the capacity purchase agreements, the Company’s performance obligation is met when each flight is completed, measured in completed block hours, and is reflected in flying agreements revenue. The transaction price for the capacity purchase agreements is determined from the fixed-fee consideration, incentive consideration and directly reimbursed expenses earned as flights are completed over the agreement term. For the nine months ended September 30, 2021, and 2020, capacity purchase agreements represented approximately 83.9% and 86.8% of the Company’s flying agreements revenue, respectively.

Under the Company’s prorate arrangements (referred to as a “prorate” or “revenue-sharing” agreement), the major airline partner and the Company negotiate a passenger fare proration formula, pursuant to which the Company receives a percentage of the ticket revenues for those passengers traveling for one portion of their trip on a Company airline and the other portion of their trip on the major airline partner. Under the Company’s prorate flying agreements, the performance obligation is met and revenue is recognized when each flight is completed based upon the portion of the prorate passenger fare the Company anticipates that it will receive for each completed flight. The transaction price for the prorate agreements is determined from the proration formula derived from each passenger ticket amount on each completed flight over the agreement term. For the nine months ended September 30, 2021, and 2020, prorate flying agreements represented approximately 16.1% and 13.2% of the Company’s flying agreements revenue, respectively.

The following table represents the Company’s flying agreements revenue by type for the three and nine months ended September 30, 2021, and 2020 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Capacity purchase agreements revenue: flight operations	$	308,273	$	175,753	$	792,501	$	674,222
Capacity purchase agreements revenue: aircraft lease and fixed revenue		282,498		208,516		770,548		619,354
Prorate agreements revenue		128,313		60,779		300,193		197,336
Flying agreements revenue	$	719,084	$	445,048	$	1,863,242	$	1,490,912

A portion of the Company’s compensation under its capacity purchase agreements is designed to reimburse the Company for certain aircraft ownership costs. The consideration for aircraft ownership costs varies by agreement but is intended to cover either the Company’s aircraft principal and interest debt service costs, its aircraft depreciation and interest expense or its aircraft lease expense costs while the aircraft is under contract. The consideration received for the use of the aircraft under the Company’s capacity purchase agreements is reflected as lease revenue, inasmuch as the agreements identify the “right of use” of a specific type and number of aircraft over a stated period of time. The lease revenue associated with the Company’s capacity purchase agreements is accounted for as an operating lease and is reflected as flying agreements revenue on the Company’s consolidated statements of comprehensive income. The Company has not separately stated aircraft rental income and aircraft rental expense in the consolidated statement of comprehensive income since the use of the aircraft is not a separate activity of the total service provided.

Under the Company’s capacity purchase agreements, the Company is paid a fixed amount per aircraft each month over the contract term. The Company recognizes revenue attributed to the fixed monthly payments proportionate to the number of block hours completed during each reporting period, relative to the estimated number of block hours the Company anticipates completing over the remaining contract term. Due to the lower number of flights operated during the COVID-19 pandemic compared to historical levels, the amount of cash collected for the fixed amount per aircraft

exceeded the revenue recognized based on flights completed. Accordingly, the Company deferred recognizing revenue on fixed monthly cash payments the Company received under its capacity purchase agreements from the second quarter of 2020 through the second quarter of 2021. During the three months ended September 30, 2021, the Company recognized $19.2 million of previously deferred revenue due to an increase in flight schedules compared to deferring revenue of $29.6 million during the three months ended September 30, 2020. During the nine months ended September 30, 2021, and 2020, the Company deferred revenue of $7.7 million and $98.6 million, respectively, of fixed monthly cash payments the Company received under its capacity purchase agreements. The Company’s deferred revenue balance was $118.4 million as of September 30, 2021, including $70.5 million in other current liabilities and $47.9 million in other long-term liabilities. At December 31, 2020, the Company’s deferred revenue balance of $110.7 million was included in other long-term liabilities. The Company’s deferred revenue balance will be recognized based on the number of block hours completed during each period relative to the estimated number of block hours the Company anticipates completing over the remaining contract term.

The Company’s capacity purchase and prorate agreements include weekly provisional cash payments from the respective major airline partner based on a projected level of flying each month. The Company and each major airline partner subsequently reconcile these payments to the actual completed flight activity on a monthly or quarterly basis.

As of September 30, 2021, the Company had 486 aircraft in scheduled service or under contract under code-share agreements. The following table summarizes the significant provisions of each code-share agreement SkyWest Airlines has with each major airline partner:

United Express Agreements
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
United Express Agreements (capacity purchase agreement)	• E175 • CRJ 700 • CRJ 200	90 19 70	• Individual aircraft have scheduled removal dates from 2022 to 2029
United Express Prorate Agreement (prorate agreement)	• CRJ 200	42	• Terminable with 120-day notice
Total under United Express Agreements		221

Delta Connection Agreements
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
Delta Connection Agreement (capacity purchase agreement)	• E175 • CRJ 900 • CRJ 700	71 40 5	• Individual aircraft have scheduled removal dates from 2022 to 2031
Delta Connection Prorate Agreement (prorate agreement)	• CRJ 200	29	• Terminable with 30-day notice
Total under Delta Connection Agreements		145

American Capacity Purchase Agreement
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
American Agreement (capacity purchase agreement)	• E175 • CRJ 900	6 82	• Individual aircraft have scheduled removal dates from 2024 to 2032
Total under American Agreements		88

Alaska Capacity Purchase Agreement
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
Alaska Agreement (capacity purchase agreement)	• E175	32	• Individual aircraft have scheduled removal dates in 2030

In addition to the contractual arrangements described above, as of September 30, 2021, SkyWest Airlines has a capacity purchase agreement with American to place 14 Embraer E175 dual-class regional jet aircraft (“E175”) into service. The delivery dates for the 14 new E175 aircraft are currently scheduled for the fourth quarter of 2021 and first half of 2022 and the aircraft are expected to be placed into service in 2022. SkyWest Airlines also has an agreement with American to place 19 used Canadair CRJ700 regional jet aircraft (“CRJ700”) under a multi-year capacity purchase agreement with scheduled in service dates into 2023.

SkyWest Airlines has a capacity purchase agreement with Alaska to place nine E175 aircraft into service. The delivery dates for the nine new E175 aircraft are currently scheduled for 2022 and the first half of 2023, and the aircraft are expected to be placed into service in 2022 and 2023.

During the three months ended September 30, 2021, SkyWest Airlines reached an agreement with Delta to place 16 E175 aircraft into service under a capacity purchase agreement. The delivery dates for the 16 new E175 aircraft are currently scheduled for 2022, and the aircraft are expected to be placed into service in 2022. Under the terms of the agreement with Delta, Delta has the right to purchase the 16 E175 aircraft at the end of the contract term at a price estimated to be the fair value at the end of the contract. These 16 new E175 aircraft are expected to replace 16 CRJ900 regional jet aircraft (“CRJ900”) the Company is operating under a capacity purchase agreement with Delta (see Note 12 “Special Items – Impairment Charge,” for further discussion of the Company’s CRJ900 aircraft). Additionally, SkyWest Airlines entered into an agreement with Delta during the third quarter of 2021 to place four used CRJ900 aircraft under a short-term contract beginning in the fourth quarter of 2021.

Final delivery and in-service dates for aircraft to be placed under contract may be adjusted based on various factors.

When an aircraft is scheduled to be removed from a capacity purchase agreement, the Company may, as practical under the circumstances, negotiate an extension with the respective major airline partner, negotiate the placement of the aircraft with another major airline partner, return the aircraft to the lessor if the aircraft is leased and the lease is expiring, place owned aircraft for sale, or pursue other uses for the aircraft. Other uses for the aircraft may include placing the aircraft in a prorate agreement, leasing the aircraft to a third party or parting out the aircraft to use the engines and parts as spare inventory or to lease the engines to a third party.

The following represents the Company’s lease, airport services and other revenue for the three and nine months ended September 30, 2021, and 2020 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Operating lease revenue	$	17,746	$	7,136	$	49,154	$	27,162
Airport customer service and other revenue		7,953		5,309		23,932		19,395
Lease, airport services and other	$	25,699	$	12,445	$	73,086	$	46,557

The following table summarizes future minimum rental income under operating leases primarily related to leased aircraft and engines that had remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

October 2021 through December 2021	$	11,388
2022		45,428
2023		44,945
2024		42,530
2025		39,082
Thereafter		155,089
	$	338,462

Of the Company’s $5.3 billion of property and equipment, net as of September 30, 2021, $256.7 million of regional jet aircraft and spare engines was leased to third parties under operating leases. The Company mitigates the residual asset risks of these assets by leasing aircraft and engine types that can be operated by the Company in the event of a default. Additionally, the operating leases typically have specified lease return condition requirements paid by the

lessee to the Company and the Company typically maintains inspection rights under the leases. Additionally, lease, airport services and other revenues includes airport agent services, such as gate and ramp agent services at applicable airports where the Company provides such services. The transaction price for airport customer service agreements is determined from an agreed-upon rate by location applied to the applicable number of flights handled by the Company over the agreement term.

The Company’s operating revenues could be impacted by several factors, including changes to the Company’s code-share agreements with its major airline partners, changes in flight schedules, contract modifications resulting from contract renegotiations, the Company’s ability to earn incentive payments contemplated under the Company’s code-share agreements and settlement of reimbursement disputes with the Company’s major airline partners.

Other ancillary revenues commonly associated with airlines, such as baggage fee revenue, ticket change fee revenue and the marketing component of the sale of mileage credits, are retained by the Company’s major airline partners on flights that the Company operates under its code-share agreements.

Allowance for credit losses

The Company adopted Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments” (“Topic 326”) on January 1, 2020. At adoption, the Company’s primary financial assets included trade receivables from its flying agreements, a note receivable from the sale of the Company’s subsidiary, ExpressJet Airlines, Inc., in 2019, and receivables from aircraft manufacturers and other third parties in the airline industry. The Company recorded a credit loss of $11.6 million net of income tax in conjunction with the adoption of Topic 326. The Company recorded this credit loss as a January 1, 2020, beginning balance sheet entry to retained earnings (net of income tax).

The Company monitors publicly available credit ratings for entities for which the Company has a significant receivable balance. As of September 30, 2021, the Company had gross receivables of $79.0 million in current assets and gross receivables of $222.8 million in other long-term assets. The Company has established credit loss reserves based on publicly available historic default rates issued by a third party for companies with similar credit ratings, factoring in the term of the respective accounts receivable or note receivable. During the nine months ended September 30, 2021, there were no significant changes in the outstanding accounts receivable or notes receivable or the credit ratings of the entities. The Company’s credit loss reserve was $44.6 million at September 30, 2021, compared to $46.2 million at December 31, 2020. The $1.6 million decrease in the credit loss reserve for the nine months ended September 30, 2021, was reflected as a reduction to the credit loss expense.

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Share-Based Compensation and Stock Repurchases

9 Months Ended

Sep. 30, 2021

Share-Based Compensation and Stock Repurchases

Share-Based Compensation and Stock Repurchases

(4) Share-Based Compensation and Stock Repurchases

During the nine months ended September 30, 2021, the Company granted 44,770 restricted stock units and 157,210 performance shares to certain employees of the Company under the SkyWest, Inc. 2019 Long-Term Incentive Plan. Both the restricted stock units and performance shares have a three-year vesting period, during which the recipient must remain employed with the Company. The number of performance shares awardable from the 2021 grants can range from 0% to 250% of the original amount granted depending on the Company’s performance over a two-year measurement period against the pre-established targets. Upon vesting, each restricted stock unit and performance share will be replaced with one share of common stock. The fair value of these restricted stock units and performance shares on their date of grant was $44.87 per share. During the nine months ended September 30, 2021, the Company did not grant any options to purchase shares of common stock to employees. Additionally, during the nine months ended September 30, 2021, the Company granted 21,175 fully vested shares of common stock to the Company’s directors at a grant date fair value of $44.87.

The Company accounts for forfeitures of restricted stock units and performance shares when forfeitures occur. The estimated fair value of the restricted stock units and performance shares is amortized over the applicable vesting periods. During the nine months ended September 30, 2021, and 2020, the Company recorded pre-tax share-based compensation expense of $7.3 million and $5.9 million, respectively.

During the nine months ended September 30, 2021, the Company paid $1.6 million for the income tax obligation on vested employee equity awards and issued the net, after-tax shares to employees. The Company did not repurchase any shares of its common stock during the nine months ended September 30, 2021. During the nine months ended September 30, 2020, the Company repurchased 385,606 shares of its common stock for $20.0 million and paid $6.2 million for the income tax obligation on vested employee equity awards and issued the net, after-tax shares to employees.

Under the terms of the PSP 3 Agreement, the Company is restricted from repurchasing shares of its common stock through September 30, 2022.

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Net Income Per Common Share

9 Months Ended

Sep. 30, 2021

Net Income Per Common Share

Net Income Per Common Share

(5) Net Income Per Common Share

Basic net income per common share (“Basic EPS”) excludes dilution and is computed by dividing net income by the weighted average number of common shares outstanding during the period. Diluted net income per common share (“Diluted EPS”) reflects the potential dilution that could occur if stock options or other contracts to issue common stock were exercised or converted into common stock. The computation of Diluted EPS does not assume exercise or conversion of securities that would have an anti-dilutive effect on net income per common share. During the nine months ended September 30, 2021, 230,000 performance shares (at target performance) were excluded from the computation of Diluted EPS since the Company had not achieved the minimum target thresholds as of September 30, 2021. During the nine months ended September 30, 2020, 200,000 performance shares (at target performance) were excluded from the computation of Diluted EPS since the Company had not achieved the minimum target thresholds as of September 30, 2020. During the nine months ended September 30, 2021, warrants to purchase 78,000 shares of common stock at $57.47 per share were excluded from the computation of Diluted EPS since the warrants' exercise price was greater than the average market price of the common shares during the quarters ended June 30, 2021, and September 30, 2021.

The calculation of the weighted average number of shares of common stock outstanding for Basic EPS and Diluted EPS for the periods indicated (in thousands, except per share data) is as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Numerator:
Net income	$	9,684	$	33,662	$	107,578	$	37,935
Denominator:
Basic earnings per share weighted average shares		50,380		50,181		50,337		50,199
Dilution due to stock options and restricted stock units		345		441		389		246
Diluted earnings per share weighted average shares		50,725		50,622		50,726		50,445
Basic earnings per share	$	0.19	$	0.67	$	2.14	$	0.76
Diluted earnings per share	$	0.19	$	0.66	$	2.12	$	0.75

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Segment Reporting

9 Months Ended

Sep. 30, 2021

Segment Reporting

Segment Reporting

(6) Segment Reporting

The Company’s two reporting segments consist of the operations of SkyWest Airlines and SkyWest Leasing activities.

The Company’s chief operating decision maker analyzes the profitability of operating new aircraft financed through the issuance of debt, including the Company’s E175 fleet, separately from the profitability of the Company’s capital deployed for ownership and financing of such aircraft. The SkyWest Airlines segment includes revenue earned under the applicable capacity purchase agreements attributed to operating such aircraft and the respective operating costs. The SkyWest Leasing segment includes applicable revenue earned under the applicable capacity purchase agreements attributed to the ownership of new aircraft acquired through the issuance of debt and the respective depreciation and interest expense of such aircraft. The SkyWest Leasing segment also includes the activity of leasing

regional jet aircraft and spare engines to third parties. The SkyWest Leasing segment’s total assets and capital expenditures include new aircraft acquired through the issuance of debt and assets leased to third parties.

The following represents the Company’s segment data for the three-month periods ended September 30, 2021, and 2020 (in thousands):

	Three months ended September 30, 2021
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	614,377	$	130,406	$	744,783
Operating expense		633,169		64,564		697,733
Depreciation and amortization expense		53,401		56,196		109,597
Special items - impairment charges		84,592		—		84,592
Interest expense		2,138		26,842		28,980
Segment profit (loss) (2)		(20,930)		39,000		18,070
Total assets (as of September 30, 2021)		2,989,600		3,950,902		6,940,502
Capital expenditures (including non-cash)		26,622		136,677		163,299

	Three months ended September 30, 2020
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	337,975	$	119,518	$	457,493
Operating expense		303,141		79,799		382,940
Depreciation and amortization expense		59,659		61,808		121,467
Interest expense		2,868		27,282		30,150
Segment profit (2)		31,966		12,437		44,403
Total assets (as of September 30, 2020)		2,836,069		3,922,525		6,758,594
Capital expenditures (including non-cash)		4,937		—		4,937

(1) Prorate revenue and airport customer service revenue are primarily reflected in the SkyWest Airlines segment.

(2) Segment profit (loss) is equal to operating income less interest expense.

The following represents the Company’s segment data for the nine-month periods ended September 30, 2021, and 2020 (in thousands):

	Nine months ended September 30, 2021
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	1,548,422	$	387,906	$	1,936,328
Operating expense		1,498,227		195,186		1,693,413
Depreciation and amortization expense		156,878		172,211		329,089
Special items - impairment charges		84,592		—		84,592
Interest expense		11,486		82,788		94,274
Segment profit (2)		38,709		109,932		148,641
Total assets (as of September 30, 2021)		2,989,600		3,950,902		6,940,502
Capital expenditures (including non-cash)		83,650		163,596		247,246
	Nine months ended September 30, 2020
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	1,172,625	$	364,844	$	1,537,469
Operating expense		1,173,152		227,846		1,400,998
Depreciation and amortization expense		170,855		193,958		364,813
Interest expense		8,847		82,433		91,280
Segment profit (loss) (2)		(9,374)		54,565		45,191
Total assets (as of September 30, 2020)		2,836,069		3,922,525		6,758,594
Capital expenditures (including non-cash)		73,063		115,258		188,321

(1) Prorate revenue and airport customer service revenue are primarily reflected in the SkyWest Airlines segment.

(2) Segment profit (loss) is equal to operating income less interest expense

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Leases, Commitments and Contingencies

9 Months Ended

Sep. 30, 2021

Leases, Commitments and Contingencies

Leases, Commitments and Contingencies

(7) — Leases, Commitments and Contingencies

The Company leases property and equipment under operating leases. For leases with durations longer than 12 months, the Company recorded the related operating lease right-of-use asset and operating lease liability at the present value of lease payments over the term. The Company used its incremental borrowing rate to discount the lease payments based on information available at lease commencement.

Aircraft

As of September 30, 2021, excluding aircraft financed by the Company’s major airline partners that the Company operates for them under contract, the Company had 43 aircraft under long-term lease agreements with remaining terms ranging from three years to nine years.

Airport facilities

The Company has operating leases for facility space including airport terminals, office space, cargo warehouses and maintenance facilities. The Company generally leases this space from government agencies that control the use of the various airports. The remaining lease terms for facility space vary from one month to 35 years. The Company’s operating leases with lease rates that are variable based on airport operating costs, use of the facilities or other variable factors are excluded from the Company’s right-of-use assets and operating lease liabilities in accordance with accounting guidance.

Leases

As of September 30, 2021, the Company’s right-of-use assets were $248.6 million, the Company’s current maturities of operating lease liabilities were $78.2 million, and the Company’s noncurrent lease liabilities were $171.4 million. During the nine months ended September 30, 2021, the Company paid $63.1 million in operating leases reflected as a reduction from operating cash flows.

The table below presents lease related terms and discount rates as of September 30, 2021.

	As of September 30, 2021
Weighted-average remaining lease term for operating leases	6.3 years
Weighted-average discount rate for operating leases	6.0%

The Company’s lease costs for the three and nine months ended September 30, 2021, and 2020 included the following components (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Operating lease cost	$	23,370	$	23,538	$	67,582	$	72,696
Variable and short-term lease cost		976		950		3,256		3,501
Sublease income		(1,888)		(1,587)		(4,717)		(4,718)
Total lease cost	$	22,458	$	22,901	$	66,121	$	71,479

As of September 30, 2021, the Company leased aircraft, airport facilities, office space, and other property and equipment under non-cancelable operating leases, which are generally on a long-term, triple-net lease basis pursuant to which the Company pays taxes, maintenance, insurance and certain other operating expenses applicable to the leased property. The Company expects that, in the normal course of business, such operating leases that expire may be renewed or replaced by other leases, or the property may be purchased rather than leased. The following table summarizes future minimum rental payments primarily related to leased aircraft required under operating leases that had initial or remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

October 2021 through December 2021	$	22,346
2022		80,467
2023		74,119
2024		30,426
2025		17,824
Thereafter		84,253
	$	309,435

As of September 30, 2021, the Company had a firm purchase commitment for 39 E175 aircraft from Embraer, S.A. (“Embraer”) with anticipated delivery dates through the first half of 2023 and a firm purchase commitment for seven used CRJ700 aircraft from a third party with anticipated delivery dates by the end of 2021.

The following table summarizes the Company’s commitments and obligations as noted for each of the next five years and thereafter (in thousands):

	Total		Oct - Dec 2021		2022		2023		2024		2025		Thereafter
Operating lease payments for aircraft and facility obligations	$	309,435	$	22,346	$	80,467	$	74,119	$	30,426	$	17,824	$	84,253
Firm aircraft and spare engine commitments		1,062,834		327,446		708,909		26,480		—		—		—
Interest commitments (1)		480,115		28,177		106,024		90,452		74,768		59,766		120,928
Principal maturities on long-term debt		2,996,573		92,341		378,855		386,035		380,475		395,673		1,363,194
Total commitments and obligations	$	4,848,958	$	470,310	$	1,274,255	$	577,086	$	485,669	$	473,263	$	1,568,375

(1) At September 30, 2021, the Company’s long-term debt had fixed interest rates.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2021

Fair Value Measurements

Fair Value Measurements

Note 8 — Fair Value Measurements

The Company holds certain assets that are required to be measured at fair value in accordance with GAAP. The Company determined the fair value of these assets based on the following three levels of inputs:

Level 1	—	Quoted prices in active markets for identical assets or liabilities.
Level 2	—	Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Some of the Company’s marketable securities primarily utilize broker quotes in a non-active market for valuation of these securities.
Level 3	—	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, therefore requiring an entity to develop its own assumptions.

As of September 30, 2021, and December 31, 2020, the Company held certain assets that are required to be measured at fair value on a recurring basis. Assets measured at fair value on a recurring basis are summarized below (in thousands):

	Fair Value Measurements as of September 30, 2021
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	49,129	$	—	$	49,129	$	—
Commercial paper		591,544		—		591,544		—
	$	640,673	$	—	$	640,673	$	—
Cash and Cash Equivalents		271,831		271,831		—		—
Total Assets Measured at Fair Value	$	912,504	$	271,831	$	640,673	$	—

	Fair Value Measurements as of December 31, 2020
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	117,928	$	—	$	117,928	$	—
Commercial paper		492,257		—		492,257		—
	$	610,185	$	—	$	610,185	$	—
Cash and Cash Equivalents		215,723		215,723		—		—
Total Assets Measured at Fair Value	$	825,908	$	215,723	$	610,185	$	—

The Company’s “marketable securities” classified as Level 2 securities primarily utilize broker quotes in a non-active market for valuation of these securities.

The Company did not make any significant transfers of securities between Level 1, Level 2 and Level 3 during the nine months ended September 30, 2021. The Company’s policy regarding the recording of transfers between levels is to record any such transfers at the end of the reporting period.

As of September 30, 2021, and December 31, 2020, the Company classified $640.7 million and $610.2 million of marketable securities, respectively, as short-term since it had the intent to maintain a liquid portfolio and the ability to redeem the securities within one year. As of September 30, 2021, and December 31, 2020, the cost of the Company’s total cash and cash equivalents and available for sale securities was $912.5 million and $825.9 million, respectively.

The fair value of the Company’s long-term debt classified as Level 2 debt was estimated using discounted cash flow analyses, based on the Company’s current estimated incremental borrowing rates for similar types of borrowing arrangements. The fair value of the Company’s long-term debt is estimated based on current rates offered to the Company for similar debt and was estimated to be $3.0 billion as of September 30, 2021, and $3.2 billion as of

December 31, 2020, as compared to the carrying amount of $3.0 billion as of September 30, 2021, and $3.2 billion as of December 31, 2020.

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Long-term Debt

9 Months Ended

Sep. 30, 2021

Long-term Debt

Long-term Debt

(9) Long-term Debt

Long-term debt consisted of the following as of September 30, 2021, and December 31, 2020 (in thousands):

		September 30, 2021		December 31, 2020
Current portion of long-term debt	$	363,379	$	406,005
Current portion of unamortized debt issue cost, net		(3,491)		(3,847)
Current portion of long-term debt, net of debt issue costs	$	359,888	$	402,158
Long-term debt, net of current maturities	$	2,633,194	$	2,829,997
Long-term portion of unamortized debt issue cost, net		(28,131)		(28,459)
Long-term debt, net of current maturities and debt issue costs	$	2,605,063	$	2,801,538
Total long-term debt (including current portion)	$	2,996,573	$	3,236,002
Total unamortized debt issue cost, net		(31,622)		(32,306)
Total long-term debt, net of debt issue costs	$	2,964,951	$	3,203,696

During the nine months ended September 30, 2021, the Company took delivery of six new E175 aircraft that the Company financed through $117.9 million of long-term debt. The debt associated with the six E175 aircraft has a 12-year term, is due in quarterly installments with fixed annual interest rates ranging from 2.7% to 2.8% and is secured by the E175 aircraft.

During the nine months ended September 30, 2021, in connection with the PSP Extension Agreement and the PSP 3 Agreement, the Company issued to U.S. Treasury promissory notes for an aggregate principal amount of $95.4 million and issued warrants to purchase up to 203,090 shares of the Company’s common stock. The Company has recorded the value of the promissory note and warrants on a relative fair value basis as $95.4 million of long-term debt and $5.8 million in common stock, respectively. The warrants have a five-year term from the date of issuance and 124,773 of the warrants have an exercise price of $40.41 per share and 78,317 of the warrants have an exercise prices of $57.47 per share. See Note 2, “Impact of the COVID-19 Pandemic,” for further discussion of the terms of the payroll support program loan and warrants.

During the second quarter of 2021, the Company repaid all amounts outstanding under the secured loan with U.S. Treasury, and in connection with such repayment, terminated the secured loan agreement. The total repayment amount was $61.2 million, which included all outstanding principal and accrued interest under the secured loan. As a result of the repayment, the collateral securing the obligations of SkyWest Airlines under the secured loan agreement, consisting of aircraft engines and aircraft parts, was released.

During the three months ended September 30, 2021, the Company repaid $80.1 million of debt related to aircraft early.

As of September 30, 2021, and December 31, 2020, the Company had $59.5 million and $61.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions.

As of September 30, 2021, SkyWest Airlines had a $75 million line of credit. The line of credit includes minimum liquidity and profitability covenants and is secured by certain assets. As of September 30, 2021, SkyWest Airlines had no amount outstanding under the facility. However, at September 30, 2021, SkyWest Airlines had $34.0 million in letters of credit issued under the facility, which reduced the amount available under the facility to $41.0 million. During the three months ended September 30, 2021, the Company extended the expiration date of the line of credit to January 1, 2022.

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Investment in Other Companies

9 Months Ended

Sep. 30, 2021

Investment in Other Companies

Investment in Other Companies

(10) — Investment in Other Companies

During 2019, the Company created a joint venture with Regional One, Inc. (“Regional One”) by investing $22.3 million for a 75% ownership interest in Aero Engines, LLC. (“Aero Engines”). The primary purpose of Aero Engines is to lease engines to third parties. Aero Engines requires unanimous approval from the Company and Regional One for its engine purchases, dispositions, lease agreements with third parties and all other material transactions. The Company determined Aero Engines is a variable interest entity as the Company has a 75% ownership interest in Aero Engines and all material decisions require unanimous approval from the Company and Regional One, resulting in disproportionate ownership rights relative to voting rights. As unanimous approval is required for all Aero Engines’ material activities, Aero Engines has no primary beneficiary. The Company accounts for its investment in Aero Engines under the equity method. The Company’s exposure in its investment in Aero Engines primarily consists of the Company’s portion of income or loss from Aero Engines’ engine lease agreements with third parties and the Company’s ownership percentage in Aero Engines’ engines book value. The Company invested an additional $1.0 million into Aero Engines in 2020. Aero Engines had no debt outstanding as of September 30, 2021. As of September 30, 2021, the Company’s investment balance in Aero Engines was $19.7 million. The Company’s investment in Aero Engines has been recorded in “Other Assets” on the Company’s consolidated balance sheet. The Company’s portion of the loss generated by Aero Engines for the nine months ended September 30, 2021, was $5.8 million, which is recorded in “Other Income (Expense)” on the Company’s consolidated statements of comprehensive income. Aero Engines’ net loss was primarily due to discrete engine overhaul events that were expensed during the nine months ended September 30, 2021.

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Income Taxes

9 Months Ended

Sep. 30, 2021

Income Taxes

Income Taxes

(11) Income Taxes

The Company’s effective tax rate for the three months ended September 30, 2021, was 31.9%. The Company’s effective tax rate for the three months ended September 30, 2021, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes and a greater impact related to non-deductible expenses relative to the Company’s pre-tax earnings during the period.

The Company’s effective tax rate for the nine months ended September 30, 2021, was 26.1%. The Company’s effective tax rate for the nine months ended September 30, 2021, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes and the impact of non-deductible expenses.

The Company’s effective tax rate for the three months ended September 30, 2020, was 27.2%. The Company’s effective tax rate for the three months ended September 30, 2020, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes, the impact of non-deductible expenses, and an adjustment to the deferred state tax rate.

The Company’s effective tax rate for the nine months ended September 30, 2020, was 27.1%. The Company’s effective tax rate for the nine months ended September 30, 2020, varied from the federal statutory rate of 21.0% primarily due to the provision for state income taxes. the impact of non-deductible expenses and an adjustment to the deferred state tax rate, partially offset by a $1.4 million discrete tax benefit from excess tax deductions generated from employee equity transactions that occurred during the nine months ended September 30, 2020, and discrete tax benefits related to prior year state income tax filings.

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Special Items - Impairment Charge

9 Months Ended

Sep. 30, 2021

Special Items - Impairment Charge

Special Items - Impairment Charge

(12) Special Items – Impairment Charge

During the three months ended September 30, 2021, the Company entered into an agreement with Delta to purchase and operate 16 new E175 aircraft under a multi-year capacity purchase agreement. The 16 new E175 aircraft will replace 16 SkyWest-owned or financed CRJ900 aircraft currently under its Delta contract with expirations ranging from the second half of 2022 to early 2023. As of September 30, 2021, SkyWest Airlines only operated the CRJ900 aircraft under a flying agreement with its major airline partner Delta. As a result of this fleet transition beginning in 2022 and the uncertainty about the Company’s ability to redeploy the CRJ900 aircraft with another major airline partner, the Company concluded that indicators of impairment existed and therefore, evaluated its CRJ900 fleet and related CRJ900 assets for impairment. Pursuant to ASC 360-10, “Impairment and Disposal of Long-Lived Assets,” the Company determined that the asset group for the CRJ900 aircraft existed at the major airline partner level. A recoverability test was performed utilizing estimated undiscounted future cash flows for the CRJ900 aircraft pursuant to applicable agreements with Delta and forecasted cash flow including the estimated value the Company would realize upon disposal of aircraft. This was compared to the carrying value of the related assets resulting in a cash flow deficiency indicating

that an impairment existed. The impairment analysis required the Company to perform an assessment of the fair value of its long-lived assets related to the CRJ900 aircraft within the asset groups utilized in the recoverability test. The Company engaged a third party to assist in determining the fair value of these aircraft. These values were estimated based on listed market values or recent third-party market transactions for similar assets, adjusted by the related maintenance status of the fleet. All fair values are considered to be Level 3 within the fair value hierarchy. The amounts the Company may ultimately realize from the disposal of its CRJ900 long-lived assets may vary from the fair value assessments. On September 30, 2021, the Company recorded a non-cash impairment charge of $84.6 million to write-down the CRJ900 aircraft operating under the Delta contracts to their estimated fair value. This special item impairment charge is reflected in the SkyWest Airlines operating expenses under Note 6, “Segment Reporting.”

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Legal Matters

9 Months Ended

Sep. 30, 2021

Legal Matters

Legal Matters

(13) Legal Matters

The Company is subject to certain legal actions which it considers routine to its business activities. As of September 30, 2021, the Company’s management believed, after consultation with legal counsel, that the ultimate outcome of such legal matters was not likely to have a material adverse effect on the Company’s financial position, liquidity, or results of operations.

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Condensed Consolidated Financial Statements (Policies)

9 Months Ended

Sep. 30, 2021

Condensed Consolidated Financial Statements

Basis of Presentation

Basis of Presentation

The condensed consolidated financial statements of SkyWest, Inc. (“SkyWest” or the “Company”) and its operating subsidiary SkyWest Airlines, Inc. (“SkyWest Airlines”) and its leasing subsidiary SkyWest Leasing, Inc. (“SkyWest Leasing”) included herein have been prepared, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the following disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements reflect all adjustments that, in the opinion of management, are necessary to present fairly the results of operations for the interim periods presented. All adjustments are of a normal recurring nature, unless otherwise disclosed. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2020. Due in part to the volatile effects from the global COVID-19 pandemic, in addition to other factors, the results of operations for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ending December 31, 2021.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates and assumptions.

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Flying Agreements Revenue and Lease, Airport Services and Other Revenues (Tables)

9 Months Ended

Sep. 30, 2021

Agreements with other airlines

Schedule of revenue by type

The following table represents the Company’s flying agreements revenue by type for the three and nine months ended September 30, 2021, and 2020 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Capacity purchase agreements revenue: flight operations	$	308,273	$	175,753	$	792,501	$	674,222
Capacity purchase agreements revenue: aircraft lease and fixed revenue		282,498		208,516		770,548		619,354
Prorate agreements revenue		128,313		60,779		300,193		197,336
Flying agreements revenue	$	719,084	$	445,048	$	1,863,242	$	1,490,912

Schedule of details of agreements with other airlines

As of September 30, 2021, the Company had 486 aircraft in scheduled service or under contract under code-share agreements. The following table summarizes the significant provisions of each code-share agreement SkyWest Airlines has with each major airline partner:

United Express Agreements
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
United Express Agreements (capacity purchase agreement)	• E175 • CRJ 700 • CRJ 200	90 19 70	• Individual aircraft have scheduled removal dates from 2022 to 2029
United Express Prorate Agreement (prorate agreement)	• CRJ 200	42	• Terminable with 120-day notice
Total under United Express Agreements		221

Delta Connection Agreements
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
Delta Connection Agreement (capacity purchase agreement)	• E175 • CRJ 900 • CRJ 700	71 40 5	• Individual aircraft have scheduled removal dates from 2022 to 2031
Delta Connection Prorate Agreement (prorate agreement)	• CRJ 200	29	• Terminable with 30-day notice
Total under Delta Connection Agreements		145

American Capacity Purchase Agreement
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
American Agreement (capacity purchase agreement)	• E175 • CRJ 900	6 82	• Individual aircraft have scheduled removal dates from 2024 to 2032
Total under American Agreements		88

Alaska Capacity Purchase Agreement
Agreement	Aircraft type	Number of Aircraft	Term / Termination Dates
Alaska Agreement (capacity purchase agreement)	• E175	32	• Individual aircraft have scheduled removal dates in 2030

Schedule of future minimum rental payments for operating leases

The following table summarizes future minimum rental payments primarily related to leased aircraft required under operating leases that had initial or remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

October 2021 through December 2021	$	22,346
2022		80,467
2023		74,119
2024		30,426
2025		17,824
Thereafter		84,253
	$	309,435

Aircraft

Agreements with other airlines

Schedule of future minimum rental payments for operating leases

October 2021 through December 2021	$	11,388
2022		45,428
2023		44,945
2024		42,530
2025		39,082
Thereafter		155,089
	$	338,462

Airport customer service and other

Agreements with other airlines

Schedule of revenue by type

The following represents the Company’s lease, airport services and other revenue for the three and nine months ended September 30, 2021, and 2020 (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Operating lease revenue	$	17,746	$	7,136	$	49,154	$	27,162
Airport customer service and other revenue		7,953		5,309		23,932		19,395
Lease, airport services and other	$	25,699	$	12,445	$	73,086	$	46,557

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Net Income Per Common Share (Tables)

9 Months Ended

Sep. 30, 2021

Net Income Per Common Share

Schedule of Basic EPS and Diluted EPS

The calculation of the weighted average number of shares of common stock outstanding for Basic EPS and Diluted EPS for the periods indicated (in thousands, except per share data) is as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Numerator:
Net income	$	9,684	$	33,662	$	107,578	$	37,935
Denominator:
Basic earnings per share weighted average shares		50,380		50,181		50,337		50,199
Dilution due to stock options and restricted stock units		345		441		389		246
Diluted earnings per share weighted average shares		50,725		50,622		50,726		50,445
Basic earnings per share	$	0.19	$	0.67	$	2.14	$	0.76
Diluted earnings per share	$	0.19	$	0.66	$	2.12	$	0.75

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting

Schedule of Company's segment data

The following represents the Company’s segment data for the three-month periods ended September 30, 2021, and 2020 (in thousands):

	Three months ended September 30, 2021
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	614,377	$	130,406	$	744,783
Operating expense		633,169		64,564		697,733
Depreciation and amortization expense		53,401		56,196		109,597
Special items - impairment charges		84,592		—		84,592
Interest expense		2,138		26,842		28,980
Segment profit (loss) (2)		(20,930)		39,000		18,070
Total assets (as of September 30, 2021)		2,989,600		3,950,902		6,940,502
Capital expenditures (including non-cash)		26,622		136,677		163,299

	Three months ended September 30, 2020
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	337,975	$	119,518	$	457,493
Operating expense		303,141		79,799		382,940
Depreciation and amortization expense		59,659		61,808		121,467
Interest expense		2,868		27,282		30,150
Segment profit (2)		31,966		12,437		44,403
Total assets (as of September 30, 2020)		2,836,069		3,922,525		6,758,594
Capital expenditures (including non-cash)		4,937		—		4,937

(1) Prorate revenue and airport customer service revenue are primarily reflected in the SkyWest Airlines segment.

(2) Segment profit (loss) is equal to operating income less interest expense.

The following represents the Company’s segment data for the nine-month periods ended September 30, 2021, and 2020 (in thousands):

	Nine months ended September 30, 2021
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	1,548,422	$	387,906	$	1,936,328
Operating expense		1,498,227		195,186		1,693,413
Depreciation and amortization expense		156,878		172,211		329,089
Special items - impairment charges		84,592		—		84,592
Interest expense		11,486		82,788		94,274
Segment profit (2)		38,709		109,932		148,641
Total assets (as of September 30, 2021)		2,989,600		3,950,902		6,940,502
Capital expenditures (including non-cash)		83,650		163,596		247,246
	Nine months ended September 30, 2020
	SkyWest		SkyWest
	Airlines		Leasing		Consolidated
Operating revenues (1)	$	1,172,625	$	364,844	$	1,537,469
Operating expense		1,173,152		227,846		1,400,998
Depreciation and amortization expense		170,855		193,958		364,813
Interest expense		8,847		82,433		91,280
Segment profit (loss) (2)		(9,374)		54,565		45,191
Total assets (as of September 30, 2020)		2,836,069		3,922,525		6,758,594
Capital expenditures (including non-cash)		73,063		115,258		188,321

(1) Prorate revenue and airport customer service revenue are primarily reflected in the SkyWest Airlines segment.

(2) Segment profit (loss) is equal to operating income less interest expense

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Leases, Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2021

Leases, Commitments and Contingencies

Summary of related terms and discount rates

	As of September 30, 2021
Weighted-average remaining lease term for operating leases	6.3 years
Weighted-average discount rate for operating leases	6.0%

Summary of lease costs

The Company’s lease costs for the three and nine months ended September 30, 2021, and 2020 included the following components (in thousands):

	For the three months ended September 30,				For the nine months ended September 30,
	2021		2020		2021		2020
Operating lease cost	$	23,370	$	23,538	$	67,582	$	72,696
Variable and short-term lease cost		976		950		3,256		3,501
Sublease income		(1,888)		(1,587)		(4,717)		(4,718)
Total lease cost	$	22,458	$	22,901	$	66,121	$	71,479

Schedule of future minimum rental payments for operating leases

The following table summarizes future minimum rental payments primarily related to leased aircraft required under operating leases that had initial or remaining non-cancelable lease terms as of September 30, 2021 (in thousands):

October 2021 through December 2021	$	22,346
2022		80,467
2023		74,119
2024		30,426
2025		17,824
Thereafter		84,253
	$	309,435

Summary of commitments and obligations

The following table summarizes the Company’s commitments and obligations as noted for each of the next five years and thereafter (in thousands):

	Total		Oct - Dec 2021		2022		2023		2024		2025		Thereafter
Operating lease payments for aircraft and facility obligations	$	309,435	$	22,346	$	80,467	$	74,119	$	30,426	$	17,824	$	84,253
Firm aircraft and spare engine commitments		1,062,834		327,446		708,909		26,480		—		—		—
Interest commitments (1)		480,115		28,177		106,024		90,452		74,768		59,766		120,928
Principal maturities on long-term debt		2,996,573		92,341		378,855		386,035		380,475		395,673		1,363,194
Total commitments and obligations	$	4,848,958	$	470,310	$	1,274,255	$	577,086	$	485,669	$	473,263	$	1,568,375

(1) At September 30, 2021, the Company’s long-term debt had fixed interest rates.

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Measurements

Schedule of assets measured at fair value on a recurring basis

Assets measured at fair value on a recurring basis are summarized below (in thousands):

	Fair Value Measurements as of September 30, 2021
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	49,129	$	—	$	49,129	$	—
Commercial paper		591,544		—		591,544		—
	$	640,673	$	—	$	640,673	$	—
Cash and Cash Equivalents		271,831		271,831		—		—
Total Assets Measured at Fair Value	$	912,504	$	271,831	$	640,673	$	—

	Fair Value Measurements as of December 31, 2020
	Total		Level 1		Level 2		Level 3
Marketable Securities
Bonds and bond funds	$	117,928	$	—	$	117,928	$	—
Commercial paper		492,257		—		492,257		—
	$	610,185	$	—	$	610,185	$	—
Cash and Cash Equivalents		215,723		215,723		—		—
Total Assets Measured at Fair Value	$	825,908	$	215,723	$	610,185	$	—

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Long-term Debt (Tables)

9 Months Ended

Sep. 30, 2021

Long-term Debt

Schedule of long-term debt

Long-term debt consisted of the following as of September 30, 2021, and December 31, 2020 (in thousands):

		September 30, 2021		December 31, 2020
Current portion of long-term debt	$	363,379	$	406,005
Current portion of unamortized debt issue cost, net		(3,491)		(3,847)
Current portion of long-term debt, net of debt issue costs	$	359,888	$	402,158
Long-term debt, net of current maturities	$	2,633,194	$	2,829,997
Long-term portion of unamortized debt issue cost, net		(28,131)		(28,459)
Long-term debt, net of current maturities and debt issue costs	$	2,605,063	$	2,801,538
Total long-term debt (including current portion)	$	2,996,573	$	3,236,002
Total unamortized debt issue cost, net		(31,622)		(32,306)
Total long-term debt, net of debt issue costs	$	2,964,951	$	3,203,696

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Impact of the COVID-19 Pandemic (Details) $ / shares in Units, $ in Millions		3 Months Ended				9 Months Ended
	May 10, 2021 USD ($)	Sep. 30, 2021 USD ($) item $ / shares shares	Jun. 30, 2021 USD ($)	Sep. 30, 2020 item	Sep. 30, 2019 item	Sep. 30, 2021 USD ($) $ / shares shares
Unusual or Infrequent Item, or Both [Line Items]
Number of flights operated | item		210,251		137,493	219,272
Flights increase percentage		52.90%
Liquid assets		$ 953.5				$ 953.5
Cash and marketable securities		912.5				912.5
Line of credit facility, reduction of amount available		$ 41.0				$ 41.0
Warrants to purchase shares | shares		78,000				78,000
Warrants exercise price | $ / shares		$ 57.47				$ 57.47
Repayments of secured debt	$ 61.2	$ 80.1	$ 61.2
PSP Extension Agreement
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		268.1				$ 268.1
PSP Extension Agreement | Operating expenses
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		217.7				217.7
PSP 3 Agreement
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		250.0				250.0
PSP 3 Agreement | Operating expenses
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		205.0				205.0
Grant | PSP Extension Agreement
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		217.7				217.7
Grant | PSP 3 Agreement
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		205.0				205.0
Unsecured term loan | PSP Extension Agreement
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		$ 50.4				$ 50.4
Debt term		10 years				10 years
Unsecured term loan | PSP 3 Agreement
Unusual or Infrequent Item, or Both [Line Items]
Principal amount		$ 45.0				$ 45.0
Debt term		10 years				10 years
Unsecured term loan | First five years | PSP Extension Agreement
Unusual or Infrequent Item, or Both [Line Items]
Debt term		5 years				5 years
Interest rate (as a percent)						1.00%
Unsecured term loan | First five years | PSP 3 Agreement
Unusual or Infrequent Item, or Both [Line Items]
Debt term		5 years				5 years
Interest rate (as a percent)						1.00%
Unsecured term loan | Final five years | PSP Extension Agreement
Unusual or Infrequent Item, or Both [Line Items]
Debt term		5 years				5 years
Interest rate (as a percent)						2.00%
Unsecured term loan | Final five years | PSP 3 Agreement
Unusual or Infrequent Item, or Both [Line Items]
Debt term		5 years				5 years
Interest rate (as a percent)						2.00%
Warrant Shares | PSP Extension Agreement
Unusual or Infrequent Item, or Both [Line Items]
Warrants to purchase shares | shares		124,773				124,773
Warrants exercise price | $ / shares		$ 40.41				$ 40.41
Warrant term						5 years
Warrant Shares | PSP Extension Agreement | Maximum
Unusual or Infrequent Item, or Both [Line Items]
Warrants to purchase shares | shares		124,773				124,773
Warrant Shares | PSP 3 Agreement
Unusual or Infrequent Item, or Both [Line Items]
Warrants to purchase shares | shares		78,317				78,317
Warrants exercise price | $ / shares		$ 57.47				$ 57.47
Warrant term						5 years
Warrant Shares | PSP 3 Agreement | Maximum
Unusual or Infrequent Item, or Both [Line Items]
Warrants to purchase shares | shares		78,317				78,317

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Flying Agreements Revenue and Lease, Airport Services and Other Revenues (Details) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 01, 2020 USD ($)	Sep. 30, 2021 USD ($) aircraft	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) aircraft	Sep. 30, 2020 USD ($)	Jun. 30, 2023 aircraft	Dec. 31, 2023 aircraft	Dec. 31, 2020 USD ($)
Agreements with other airlines
Percentage of ASMs flown under fixed-fee arrangements				83.90%	86.80%
Percentage of ASMs flown under pro-rate arrangements				16.10%	13.20%
Revenues [Abstract]
Operating revenues		$ 744,783	$ 457,493	$ 1,936,328	$ 1,537,469
Rental income under operating leases
Operating lease revenue		17,746	7,136	49,154	27,162
Future minimum rental income
October 2021 through December 2021		11,388		11,388
2022		45,428		45,428
2023		44,945		44,945
2024		42,530		42,530
2025		39,082		39,082
Thereafter		155,089		155,089
Total		338,462		338,462
Deferred revenue		118,400		118,400				$ 110,700
Deferred revenue in other current liabilities		70,500		70,500
Deferred revenue in other long-term liabilities		47,900		$ 47,900
Number of aircraft | aircraft				486
Property and equipment and related assets		5,285,457		$ 5,285,457				5,362,048
Credit loss reserve		44,600		44,600				$ 46,200
Credit loss				1,600
Topic 326
Future minimum rental income
Credit loss	$ 11,600
Capacity Purchase Agreements
Future minimum rental income
Deferred revenue recognized		19,200	29,600
Deferred revenue		7,700	98,600	$ 7,700	98,600
Sky West Airlines Inc | Delta Connection Agreement
Future minimum rental income
Number of aircraft | aircraft				145
Sky West Airlines Inc | United Express Agreements
Future minimum rental income
Number of aircraft | aircraft				221
Sky West Airlines Inc | American Capacity Purchase Agreement
Future minimum rental income
Number of aircraft | aircraft				88
Third Party Lease
Future minimum rental income
Property and equipment and related assets		$ 256,700		$ 256,700
CRJ 200 | Sky West Airlines Inc | Delta Connection Prorate Agreement
Future minimum rental income
Number of aircraft | aircraft				29
Agreement term				30 days
CRJ 200 | Sky West Airlines Inc | United Express Agreements
Future minimum rental income
Number of aircraft | aircraft				70
CRJ 200 | Sky West Airlines Inc | United Express Prorate Agreement
Future minimum rental income
Number of aircraft | aircraft				42
Agreement term				120 days
CRJ 700
Future minimum rental income
Number of aircraft under purchase agreement | aircraft				7
CRJ 700 | Sky West Airlines Inc | Delta Connection Agreement
Future minimum rental income
Number of aircraft | aircraft				5
CRJ 700 | Sky West Airlines Inc | United Express Agreements
Future minimum rental income
Number of aircraft | aircraft				19
CRJ 700 | Sky West Airlines Inc | American Capacity Purchase Agreement
Future minimum rental income
Number of aircraft under purchase agreement | aircraft				19
CRJ 900 | Sky West Airlines Inc | Delta Connection Agreement
Future minimum rental income
Number of aircraft | aircraft				40
CRJ 900 | Sky West Airlines Inc | American Capacity Purchase Agreement
Future minimum rental income
Number of aircraft | aircraft				82
CRJ 900 | Sky West Airlines Inc | Delta Capacity Purchase Agreement
Future minimum rental income
Number of aircraft under purchase agreement | aircraft		4
CRJ 900 | Sky West Airlines Inc | Forecast
Future minimum rental income
Number of aircraft replaced | aircraft							16
Number of aircraft to be replaced | aircraft						16
E175
Future minimum rental income
Number of aircraft under purchase agreement | aircraft				39
E175 | Sky West Airlines Inc | Delta Connection Agreement
Future minimum rental income
Number of aircraft | aircraft				71
E175 | Sky West Airlines Inc | United Express Agreements
Future minimum rental income
Number of aircraft | aircraft				90
E175 | Sky West Airlines Inc | American Capacity Purchase Agreement
Future minimum rental income
Number of aircraft | aircraft				6
Number of aircraft under purchase agreement | aircraft				14
E175 | Sky West Airlines Inc | Alaska Capacity Purchase Agreement
Future minimum rental income
Number of aircraft | aircraft				32
Number of aircraft under purchase agreement | aircraft				9
E175 | Sky West Airlines Inc | Delta Capacity Purchase Agreement
Future minimum rental income
Number of aircraft under purchase agreement | aircraft		16
Number of aircraft to be placed by 2022 | aircraft		16		16
Number aircraft right to repurchase | aircraft		16		16
Current assets
Future minimum rental income
Gross receivables current		$ 79,000		$ 79,000
Other noncurrent assets
Future minimum rental income
Gross receivables Non-current		222,800		222,800
Flying agreements
Revenues [Abstract]
Operating revenues		719,084	445,048	1,863,242	1,490,912
Flight operations
Revenues [Abstract]
Operating revenues		308,273	175,753	792,501	674,222
Aircraft lease and fixed revenue
Revenues [Abstract]
Operating revenues		282,498	208,516	770,548	619,354
Prorate agreements
Revenues [Abstract]
Operating revenues		128,313	60,779	300,193	197,336
Airport customer service and other revenue
Revenues [Abstract]
Operating revenues		7,953	5,309	23,932	19,395
Lease, airport services and other
Revenues [Abstract]
Operating revenues		$ 25,699	$ 12,445	$ 73,086	$ 46,557

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Share-Based Compensation and Stock Repurchases (Details) - USD ($) $ / shares in Units, $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Share-Based Compensation
Upon vesting, each restricted stock unit and performance share replaced with common stock	1
Stock based compensation expense	$ 7.3	$ 5.9
Common stock repurchased (in shares)	0	385,606
Common stock repurchased, value		$ 20.0
Payment of income tax obligation on employee equity awards	$ 1.6	$ 6.2
Restricted stock units
Share-Based Compensation
Granted (in dollars per share)	$ 44.87
Restricted stock units | Long Term Incentive Plan 2010
Share-Based Compensation
Granted (in shares)	44,770
Vesting period	3 years
Performance stock units
Share-Based Compensation
Granted (in dollars per share)	$ 44.87
Performance stock units | Long Term Incentive Plan 2010
Share-Based Compensation
Granted (in shares)	157,210
Vesting period	3 years
Performance stock units | Minimum | Long Term Incentive Plan 2010
Share-Based Compensation
Percentage number of performance shares awarded	0.00%
Performance stock units | Maximum | Long Term Incentive Plan 2010
Share-Based Compensation
Percentage number of performance shares awarded	250.00%
Director
Share-Based Compensation
Granted (in shares)	21,175
Granted (in dollars per share)	$ 44.87

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Net Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Income Per Common Share
Number of outstanding units not included in computation of Diluted EPS (in shares)							230,000	200,000
Warrants to purchase shares	78,000						78,000
Warrants exercise price	$ 57.47						$ 57.47
Numerator:
Net income	$ 9,684	$ 61,994	$ 35,900	$ 33,662	$ (25,715)	$ 29,988	$ 107,578	$ 37,935
Denominator:
Basic earnings per share weighted average shares	50,380,000			50,181,000			50,337,000	50,199,000
Dilution due to stock options and restricted stock units	345,000			441,000			389,000	246,000
Diluted earnings per share weighted average shares	50,725,000			50,622,000			50,726,000	50,445,000
Basic earnings per share (in dollars per share)	$ 0.19			$ 0.67			$ 2.14	$ 0.76
Diluted earnings per share (in dollars per share)	$ 0.19			$ 0.66			$ 2.12	$ 0.75

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Segment Reporting (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) segment	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Segment Reporting
Number of operating segments | segment			2
Operating revenues	$ 744,783	$ 457,493	$ 1,936,328	$ 1,537,469
Operating expense	697,733	382,940	1,693,413	1,400,998
Depreciation and amortization expense	109,597	121,467	329,089	364,813
Special items - impairment charges	84,592		84,592
Interest expense	28,980	30,150	94,274	91,280
Segment profit (loss)	18,070	44,403	148,641	45,191
Total assets (as of September 30)	6,940,502	6,758,594	6,940,502	6,758,594	$ 6,887,622
Capital expenditures (including non-cash)	163,299	4,937	247,246	188,321
SkyWest Airlines
Segment Reporting
Operating revenues	614,377	337,975	1,548,422	1,172,625
Operating expense	633,169	303,141	1,498,227	1,173,152
Depreciation and amortization expense	53,401	59,659	156,878	170,855
Special items - impairment charges	84,592		84,592
Interest expense	2,138	2,868	11,486	8,847
Segment profit (loss)	(20,930)	31,966	38,709	(9,374)
Total assets (as of September 30)	2,989,600	2,836,069	2,989,600	2,836,069
Capital expenditures (including non-cash)	26,622	4,937	83,650	73,063
SkyWest Leasing
Segment Reporting
Operating revenues	130,406	119,518	387,906	364,844
Operating expense	64,564	79,799	195,186	227,846
Depreciation and amortization expense	56,196	61,808	172,211	193,958
Interest expense	26,842	27,282	82,788	82,433
Segment profit (loss)	39,000	12,437	109,932	54,565
Total assets (as of September 30)	3,950,902	$ 3,922,525	3,950,902	3,922,525
Capital expenditures (including non-cash)	$ 136,677		$ 163,596	$ 115,258

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Leases, Commitments and Contingencies (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) aircraft	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 248,576		$ 248,576		$ 282,362
Current maturities of lease liabilities	78,188		78,188		82,641
Noncurrent operating leases	$ 171,443		171,443		$ 205,845
Operating leases			$ 63,100
Weighted-average remaining lease term for operating leases	6 years 3 months 18 days		6 years 3 months 18 days
Weighted-average discount rate for operating leases	6.00%		6.00%
Lease costs
Operating lease cost	$ 23,370	$ 23,538	$ 67,582	$ 72,696
Variable and short-term lease cost	976	950	3,256	3,501
Sublease income	(1,888)	(1,587)	(4,717)	(4,718)
Total lease cost	$ 22,458	$ 22,901	$ 66,121	$ 71,479
Aircraft
Lessee, Lease, Description [Line Items]
Number of aircraft leased | aircraft			43
Aircraft | Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	3 years		3 years
Aircraft | Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	9 years		9 years
Airport Facilities | Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 month		1 month
Airport Facilities | Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	35 years		35 years

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Leases, Commitments and Contingencies - Operating Leases (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) aircraft
Future minimum rental payments required under operating leases
October 2021 through December 2021	$ 22,346
2022	80,467
2023	74,119
2024	30,426
2025	17,824
Thereafter	84,253
Total	$ 309,435
E175
Future minimum rental payments required under operating leases
Number of aircraft under purchase agreement | aircraft	39
CRJ 700
Future minimum rental payments required under operating leases
Number of aircraft under purchase agreement | aircraft	7

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Leases, Commitments and Contingencies - Commitments and Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Operating lease payments for aircraft and facility obligations
Oct - Dec 2021	$ 22,346
2022	80,467
2023	74,119
2024	30,426
2025	17,824
Thereafter	84,253
Total	309,435
Firm aircraft and spare engine commitments
Oct - Dec 2021	327,446
2022	708,909
2023	26,480
Total	1,062,834
Interest commitments
Oct - Dec 2021	28,177
2022	106,024
2023	90,452
2024	74,768
2025	59,766
Thereafter	120,928
Total	480,115
Principal maturities on long-term debt
Oct - Dec 2021	92,341
2022	378,855
2023	386,035
2024	380,475
2025	395,673
Thereafter	1,363,194
Total long-term debt	2,996,573	$ 3,236,002
Total commitments and obligations
Oct - Dec 2021	470,310
2022	1,274,255
2023	577,086
2024	485,669
2025	473,263
Thereafter	1,568,375
Total	$ 4,848,958

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Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Fair Value Measurements
Marketable securities	$ 640,673	$ 610,185
Fair Value of Financial Instruments
Carrying amount of long-term debt	2,964,951	3,203,696
Recurring | Fair value
Fair Value Measurements
Marketable securities	640,673	610,185
Cash and cash equivalents	271,831	215,723
Total Assets Measured at Fair Value	912,504	825,908
Cost of cash and cash equivalents and available for sale securities	912,500	825,900
Recurring | Fair value | Bonds and bond funds
Fair Value Measurements
Marketable securities	49,129	117,928
Recurring | Fair value | Commercial paper
Fair Value Measurements
Marketable securities	591,544	492,257
Recurring | Level 1
Fair Value Measurements
Cash and cash equivalents	271,831	215,723
Total Assets Measured at Fair Value	271,831	215,723
Recurring | Level 2
Fair Value Measurements
Marketable securities	640,673	610,185
Total Assets Measured at Fair Value	640,673	610,185
Fair Value of Financial Instruments
Fair value of long-term debt	3,000,000	3,200,000
Carrying amount of long-term debt	3,000,000	3,200,000
Recurring | Level 2 | Bonds and bond funds
Fair Value Measurements
Marketable securities	49,129	117,928
Recurring | Level 2 | Commercial paper
Fair Value Measurements
Marketable securities	$ 591,544	$ 492,257

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Long-term Debt (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	May 10, 2021 USD ($)	Sep. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($)	Sep. 30, 2021 USD ($) aircraft $ / shares shares	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Current portion long-term debt		$ 363,379		$ 363,379	$ 406,005
Current portion of unamortized debt issue cost, net		(3,491)		(3,491)	(3,847)
Current portion of long-term debt, net of debt issue costs		359,888		359,888	402,158
Long-term debt, net of current maturities		2,633,194		2,633,194	2,829,997
Long-term portion of unamortized debt issue cost, net		(28,131)		(28,131)	(28,459)
Long-term debt, net of current maturities and debt issue costs		2,605,063		2,605,063	2,801,538
Total long-term debt (including current portion)		2,996,573		2,996,573	3,236,002
Total unamortized debt issue cost, net		(31,622)		(31,622)	(32,306)
Total long-term debt, net of debt issue costs		$ 2,964,951		$ 2,964,951	3,203,696
Warrants to purchase shares | shares		78,000		78,000
Long-term debt		$ 2,964,951		$ 2,964,951	3,203,696
Warrants exercise price | $ / shares		$ 57.47		$ 57.47
Repayments of secured debt	$ 61,200	$ 80,100	$ 61,200
Amount outstanding		0		$ 0
Maximum borrowing capacity		75,000		75,000
Current borrowing capacity		41,000		41,000
Letters of credit and surety bonds
Debt Instrument [Line Items]
Amount outstanding		59,500		59,500	$ 61,100
Letters of credit
Debt Instrument [Line Items]
Amount outstanding		34,000		34,000
Promissory note
Debt Instrument [Line Items]
Total long-term debt, net of debt issue costs		95,400		95,400
Principal amount		95,400		95,400
Long-term debt		95,400		95,400
Common stock value issued		5,800		$ 5,800
E175
Debt Instrument [Line Items]
Number of aircraft delivered | aircraft				6
Debt instrument, term				12 years
Principal amount		$ 117,900		$ 117,900
Minimum | E175
Debt Instrument [Line Items]
Interest rate (as a percent)		2.70%		2.70%
Maximum | Promissory note
Debt Instrument [Line Items]
Warrants to purchase shares | shares		203,090		203,090
Maximum | E175
Debt Instrument [Line Items]
Interest rate (as a percent)		2.80%		2.80%
PSP Extension Agreement
Debt Instrument [Line Items]
Principal amount		$ 268,100		$ 268,100
PSP 3 Agreement
Debt Instrument [Line Items]
Principal amount		$ 250,000		$ 250,000
Warrant Shares | PSP Extension Agreement
Debt Instrument [Line Items]
Warrants to purchase shares | shares		124,773		124,773
Warrants exercise price | $ / shares		$ 40.41		$ 40.41
Warrant term				5 years
Warrant Shares | PSP Extension Agreement | Maximum
Debt Instrument [Line Items]
Warrants to purchase shares | shares		124,773		124,773
Warrant Shares | PSP 3 Agreement
Debt Instrument [Line Items]
Warrants to purchase shares | shares		78,317		78,317
Warrants exercise price | $ / shares		$ 57.47		$ 57.47
Warrant term				5 years
Warrant Shares | PSP 3 Agreement | Maximum
Debt Instrument [Line Items]
Warrants to purchase shares | shares		78,317		78,317

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Investment in Other Companies (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Long-term debt	$ 2,964,951	$ 3,203,696
Aero Engines, LLC.
Payments to acquire interest in joint venture			$ 22,300
Investment ownership (as a percent)		75.00%	75.00%
Additional interest in Joint venture		$ 1,000
Long-term debt	0
Aero Engines, LLC. | Other Assets
Investment balance in Aero Engines	19,700
Aero Engines, LLC. | Other Nonoperating Income.
Company's portion of income generated by Aero Engines	$ 5,800

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes
Effective tax rate (as a percent)	31.90%	27.20%	26.10%	27.10%
Statutory Federal income tax rate (as a percent)	21.00%	21.00%	21.00%	21.00%
Discrete tax benefit				$ 1.4

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Special Items - Impairment Charge (Details) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) aircraft	Sep. 30, 2021 USD ($) aircraft	Jun. 30, 2023 aircraft
Impairment charges | $	$ 84,592	$ 84,592
E175
Number of aircraft under purchase agreement		39
CRJ 900
Impairment charges | $		$ 84,600
Sky West Airlines Inc | CRJ 900 | Forecast
Number of aircraft to be replaced			16
Sky West Airlines Inc | Delta Capacity Purchase Agreement | E175
Number of aircraft under purchase agreement	16
Sky West Airlines Inc | Delta Capacity Purchase Agreement | CRJ 900
Number of aircraft under purchase agreement	4