10-Q

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

ý	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended June 30, 2017
OR
o	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 001-33166

Allegiant Travel Company

(Exact Name of Registrant as Specified in Its Charter)

Nevada	20-4745737
(State or Other Jurisdiction of Incorporation or Organization)	(IRS Employer Identification No.)
1201 North Town Center Drive
Las Vegas, Nevada	89144
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s Telephone Number, Including Area Code: (702) 851-7300

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 ý  No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted 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 and post such files).  Yes ý  No o

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

Large accelerated filer  x	Accelerated filer  o
Non-accelerated filer  o	Smaller reporting company  o
(Do not check if a smaller reporting company)	Emerging growth company  o

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.  o

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

The number of shares of the registrant’s common stock outstanding as of the close of business on July 14, 2017 was 16,070,344.

Allegiant Travel Company

Form 10-Q

Table of Contents

PART I.	FINANCIAL INFORMATION
ITEM 1.	Consolidated Financial Statements	3
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	12
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	23
ITEM 4.	Controls and Procedures	23
PART II.	OTHER INFORMATION
ITEM 1.	Legal Proceedings	24
ITEM 1A.	Risk Factors	24
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	24
ITEM 3.	Defaults Upon Senior Securities	24
ITEM 4.	Mine Safety Disclosures	24
ITEM 5.	Other Information	24
ITEM 6.	Exhibits	25
	Signatures	26

2

PART I. FINANCIAL INFORMATION

Item 1. Consolidated Financial Statements

ALLEGIANT TRAVEL COMPANY

CONSOLIDATED BALANCE SHEETS

(in thousands)

	June 30, 2017			December 31, 2016
	(unaudited)
CURRENT ASSETS:
Cash and cash equivalents	$	20,040		$	64,711
Restricted cash	11,423			11,647
Short-term investments	323,117			269,269
Accounts receivable	23,917			40,667
Expendable parts, supplies and fuel, net	17,855			16,797
Prepaid expenses	25,753			16,277
Other current assets	4,809			2,686
TOTAL CURRENT ASSETS	426,914			422,054
Property and equipment, net	1,212,771			1,095,314
Long-term investments	159,769			124,834
Deferred major maintenance, net	28,813			17,347
Deposits and other assets	11,730			12,027
TOTAL ASSETS	$	1,839,997		$	1,671,576
CURRENT LIABILITIES:
Accounts payable	$	18,002		$	16,010
Accrued liabilities	110,842			96,661
Air traffic liability	237,835			194,001
Current maturities of notes payable, net of related costs	116,387			86,226
TOTAL CURRENT LIABILITIES	483,066			392,898
Long-term debt, net of current maturities and related costs	761,082			722,048
Deferred income taxes	127,631			75,338
Other noncurrent liabilities	8,732			7,670
TOTAL LIABILITIES:	1,380,511			1,197,954
SHAREHOLDERS' EQUITY:
Common stock, par value $.001	23			22
Treasury stock	(606,352		)	(517,803		)
Additional paid in capital	246,906			238,236
Accumulated other comprehensive loss, net	(1,391		)	(230		)
Retained earnings	820,300			753,397
TOTAL EQUITY	459,486			473,622
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$	1,839,997		$	1,671,576

The accompanying notes are an integral part of these consolidated financial statements.

3

ALLEGIANT TRAVEL COMPANY

CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share amounts)

 (unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
OPERATING REVENUE:
Scheduled service revenue	$	220,615		$	189,122		$	432,713		$	390,728
Ancillary revenue:
Air-related charges	145,405			128,713			276,970			249,643
Third party products	14,304			11,965			27,046			23,223
Total ancillary revenue	159,709			140,678			304,016			272,866
Fixed fee contract revenue	11,029			6,706			22,289			13,507
Other revenue	9,261			8,345			17,434			16,366
Total operating revenue	400,614			344,851			776,452			693,467
OPERATING EXPENSES:
Aircraft fuel	85,387			60,005			170,049			113,663
Salary and benefits	92,221			68,553			188,519			137,761
Station operations	38,998			33,328			70,830			64,061
Maintenance and repairs	28,645			29,261			58,740			55,753
Depreciation and amortization	30,129			25,396			60,678			50,081
Sales and marketing	12,861			5,317			22,859			11,125
Aircraft lease rentals	2,400			219			2,564			452
Other	24,777			18,296			44,129			34,968
Total operating expenses	315,418			240,375			618,368			467,864
OPERATING INCOME	85,196			104,476			158,084			225,603
OTHER (INCOME) EXPENSE:
Interest expense	8,889			7,390			17,291			14,629
Interest income	(1,475		)	(710		)	(2,739		)	(1,321		)
Other, net	(493		)	(300		)	(854		)	(663		)
Total other expense	6,921			6,380			13,698			12,645
INCOME BEFORE INCOME TAXES	78,275			98,096			144,386			212,958
PROVISION FOR INCOME TAXES	29,800			37,249			54,279			80,131
NET INCOME	$	48,475		$	60,847		$	90,107		$	132,827
Earnings per share to common stockholders:
Basic	$	2.94		$	3.68		$	5.44		$	7.98
Diluted	$	2.94		$	3.68		$	5.43		$	7.97
Shares used for computation:
Basic	16,198			16,420			16,290			16,549
Diluted	16,220			16,442			16,317			16,574
Cash dividends declared per share:	$	0.70		$	0.70		$	1.40		$	1.00

The accompanying notes are an integral part of these consolidated financial statements.

4

ALLEGIANT TRAVEL COMPANY

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

(unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Other comprehensive (loss) income:
Change in available for sale securities, net of tax	(2		)	148			222			439
Foreign currency translation adjustments	(215		)	43			(298		)	(63		)
Change in derivatives, net of tax	(341		)	6			(556		)	(325		)
Reclassification of derivative gains into Other revenue	(240		)	(245		)	(529		)	(510		)
Total other comprehensive loss	(798		)	(48		)	(1,161		)	(459		)
TOTAL COMPREHENSIVE INCOME	$	47,677		$	60,799		$	88,946		$	132,368

The accompanying notes are an integral part of these consolidated financial statements.

5

ALLEGIANT TRAVEL COMPANY

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Six Months Ended June 30,
	2017			2016
OPERATING ACTIVITIES:
Net income	$	90,107		$	132,827
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	60,678			50,081
Loss/(gain) on aircraft and other equipment disposals	4,901			(472		)
Provision for obsolescence of expendable parts, supplies and fuel	1,753			1,043
Amortization of deferred financing costs	775			745
Share-based compensation expense	7,249			3,002
Deferred income taxes	51,995			2,753
Changes in certain assets and liabilities:
(Increase) decrease in accounts receivable	16,572			(227		)
(Increase) decrease in prepaid expenses	(9,476		)	584
Increase (decrease) in accounts payable	2,263			3,505
Increase (decrease) in accrued liabilities	10,382			23,888
Increase (decrease) in air traffic liability	43,834			42,731
(Increase) in deferred major maintenance	(14,331		)	(2,891		)
Other, net	(3,558		)	(1,470		)
Net cash provided by operating activities	263,144			256,099
INVESTING ACTIVITIES:
Purchase of investment securities	(242,895		)	(197,611		)
Proceeds from maturities of investment securities	154,334			180,078
Aircraft pre-delivery deposits	(63,468		)	—
Purchase of property and equipment, including capitalized interest	(118,846		)	(105,177		)
Other investing activities	1,352			3,773
Net cash used in investing activities	(269,523		)	(118,937		)
FINANCING ACTIVITIES:
Cash dividends paid to shareholders	(23,204		)	(44,355		)
Proceeds from the issuance of long-term debt	134,540			28,000
Repurchase of common stock	(84,940		)	(63,319		)
Principal payments on long-term debt	(64,876		)	(39,210		)
Other financing activities	188			293
Net cash used in financing activities	(38,292		)	(118,591		)
Net change in cash and cash equivalents	(44,671		)	18,571
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	64,711			87,112
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$	20,040		$	105,683
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
CASH PAYMENTS FOR:
Interest paid, net of amount capitalized	$	16,001		$	11,936
Income taxes paid, net of refunds	$	—		$	59,928

The accompanying notes are an integral part of these consolidated financial statements.

6

ALLEGIANT TRAVEL COMPANY

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

Note 1 — Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited consolidated financial statements include the accounts of Allegiant Travel Company (the “Company”) and its majority-owned operating subsidiaries. The Company has no independent assets or operations, and all guarantees of the Company's publicly held debt are full and unconditional and joint and several. Any subsidiaries of the parent company other than the subsidiary guarantors are minor. All intercompany balances and transactions have been eliminated.

These unaudited consolidated financial statements reflect all normal recurring adjustments which management believes are necessary to present fairly the financial position, results of operations, and cash flows of the Company for the respective periods presented. Certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") have been omitted pursuant to the rules and regulations of the Securities and Exchange Commission for Form 10-Q. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements of the Company and notes thereto included in the annual report of the Company on Form 10-K for the year ended December 31, 2016, filed with the Securities and Exchange Commission.

The preparation of financial statements in conformity with U.S. 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 may differ from these estimates.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)" intended to create a unified model to determine when and how revenue is recognized. Under this ASU and subsequently issued amendments, the core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. Under the new standard, revenue related to certain air-related ancillary fees directly related to ticket revenue, such as seat fees and baggage fees, will no longer be considered distinct performance obligations separate from passenger travel and will be reclassified into scheduled service revenue. In addition, change fees previously recognized when incurred by the customer, will be deferred and recognized as revenue when air travel is provided and reclassified into scheduled service revenue.

The new standard is effective for annual and interim periods beginning after December 15, 2017, and the Company will adopt effective January 1, 2018. The Company continues to evaluate the impact on its financial statements of adopting this new accounting standard and believes that adoption will have little effect on earnings, although the classification of certain air-related ancillary fees, as described above, will change.

In February 2016, the FASB issued ASU 2016-02 related to leases. This standard will require leases with durations greater than twelve months to be recognized on the balance sheet as a lease liability and a corresponding right-of-use asset, and is effective for interim and annual reporting periods beginning after December 15, 2018 with early adoption permitted. The Company has not completed the assessment of this new standard. The Company believes adoption will have a significant impact on its consolidated balance sheets but is not expected to significantly change the recognition, measurement or presentation of associated expense within the consolidated statements of income or cash flows.

In August 2016, the FASB issued ASU 2016-15, which amends the guidance in Accounting Standards Codification ("ASC") 230 on the classification of certain cash receipts and payments in the statement of cash flows. The primary purpose of the ASU is to reduce the diversity in practice that has resulted from the lack of consistency on this topic. The standard is effective for annual and interim periods beginning after December 15, 2017, and the Company will adopt it effective January 1, 2018. Significant classification modifications are not expected as a result of adoption.

7

Note 2 — Property and Equipment

Property and equipment (in thousands):

	As of June 30, 2017			As of December 31, 2016
Flight equipment, including pre-delivery deposits	$	1,518,072		$	1,377,829
Computer hardware and software	113,321			101,850
Other property and equipment	88,001			81,786
Total property and equipment	1,719,394			1,561,465
Less accumulated depreciation and amortization	(506,623		)	(466,151		)
Property and equipment, net	$	1,212,771		$	1,095,314

Note 3 — Long-Term Debt

Long-term debt (in thousands):

	As of June 30, 2017			As of December 31, 2016
Fixed-rate notes payable due through 2020	$	465,594		$	465,748
Variable-rate notes payable due through 2027	411,875			342,526
Total long-term debt, net of related costs	877,469			808,274
Less current maturities, net of related costs	116,387			86,226
Long-term debt, net of current maturities and related costs	$	761,082		$	722,048
Weighted average fixed-interest rate	5.41		%	5.41		%
Weighted average variable-interest rate	3.27		%	3.16		%

Maturities of long-term debt for the remainder of 2017 and for the next five years and thereafter, in the aggregate, are: remaining in 2017 - $45.8 million; 2018 - $154.4 million; 2019 - $530.0 million; 2020 - $64.5 million; 2021 - $37.2 million; and $45.6 million thereafter.

Secured Debt

In the first six months of 2017, the Company borrowed $134.5 million under loan agreements secured by nine Airbus A320 series aircraft. The notes bear interest at a floating rate based on LIBOR plus a weighted average margin of 1.68 percent and are payable in quarterly installments over five or ten years.

Note 4 — Fair Value Measurements

The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received by selling an asset or paid to transfer a liability in an orderly transaction between market participants.

Accounting standards pertaining to fair value measurements establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 inputs that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions.

The Company uses the market approach valuation technique to determine fair value for investment securities. The assets classified as Level 1 consist of money market funds for which original cost approximates fair value. The assets classified as Level 2 consist of commercial paper, municipal debt securities, federal agency debt securities, US Treasury Bonds, and corporate debt securities, which are valued using quoted market prices or alternative pricing sources including transactions

8

involving identical or comparable assets and models utilizing market observable inputs. The Company has no investment securities classified as Level 3.

For those assets classified as Level 2 that are not in active markets, the Company obtains fair value from pricing sources using quoted market prices for identical or comparable instruments, and uses pricing models which include all significant observable inputs: maturity dates, issue dates, settlement dates, benchmark yields, reported trades, broker-dealer quotes, issue spreads, benchmark securities, bids, offers and other market related data. These inputs are observable or can be derived from, or corroborated by, observable market data for substantially the full term of the asset.

The fair value of the Company's derivative instrument is determined using standard valuation models. The significant inputs used in these models are readily available in public markets or can be derived from observable market transactions and therefore have been classified as Level 2. Inputs used in these standard valuation models for derivative instruments include the applicable exchange and interest rates.

Financial instruments measured at fair value on a recurring basis (in thousands):

	As of June 30, 2017						As of December 31, 2016
	Total		Level 1		Level 2		Total		Level 1		Level 2
Cash equivalents
Municipal debt securities	$	1,568	$	—	$	1,568	$	1,843	$	—	$	1,843
Money market funds	502		502		—		123		123		—
Federal agency debt securities	—		—		—		19,399		—		19,399
Total cash equivalents	2,070		502		1,568		21,365		123		21,242
Short-term
Municipal debt securities	143,273		—		143,273		78,826		—		78,826
Commercial paper	96,105		—		96,105		108,372		—		108,372
Corporate debt securities	69,897		—		69,897		76,570		—		76,570
Federal agency debt securities	10,840		—		10,840		3,895		—		3,895
US Treasury Bonds	3,002		—		3,002		1,606		—		1,606
Total short-term	323,117		—		323,117		269,269		—		269,269
Long-term
Corporate debt securities	106,134		—		106,134		25,048		—		25,048
Municipal debt securities	29,378		—		29,378		72,623		—		72,623
Federal agency debt securities	24,257		—		24,257		24,160		—		24,160
Derivative instruments	780		—		780		1,660		—		1,660
US Treasury Bonds	—		—		—		3,003		—		3,003
Total long-term	160,549		—		160,549		126,494		—		126,494
Total financial instruments	$	485,736	$	502	$	485,234	$	417,128	$	123	$	417,005

The fair value of the Company’s publicly held long-term debt is determined based on inputs that are readily available in public markets or can be derived from information available in publicly quoted markets; therefore, the Company has categorized its publicly held debt as Level 2. The remaining debt agreements are not publicly held. The Company has determined the estimated fair value of these notes to be Level 3, as certain inputs used to determine the fair value of these agreements are unobservable and, therefore, could be sensitive to changes in inputs. The Company utilizes the discounted cash flow method to estimate the fair value of Level 3 debt.

9

Carrying value and estimated fair value of long-term debt, including current maturities and without reduction for related costs (in thousands):

	As of June 30, 2017				As of December 31, 2016
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value		Hierarchy Level
Publicly held debt	$	451,750	$	469,820	$	452,179	$	468,005	2
Non-publicly held debt	430,631		402,628		360,999		340,866		3
Total long-term debt	$	882,381	$	872,448	$	813,178	$	808,871

Due to the short-term nature, carrying amounts of cash, cash equivalents, restricted cash, accounts receivable and accounts payable approximate fair value.

Note 5 — Derivative Instruments

The Company entered into a foreign currency swap in order to mitigate the foreign currency exchange rate risk associated with the forecasted lease revenue from 12 Airbus A320 series aircraft leased to a European carrier until 2018. The Company uses a cash flow hedge to minimize the variability in cash flows of assets, liabilities and forecasted transactions caused by fluctuations in foreign currency exchange rates. For the six months ended June 30, 2017, the net change in fair value recorded in accumulated other comprehensive income related to an unrealized loss on the hedge was $0.6 million compared to $0.3 million for the six months ended June 30, 2016.

At inception, the Company formally designated and documented this financial instrument as a hedge of a specific underlying exposure, the risk management objective, and the strategy for undertaking the hedge transaction. The Company also assessed whether the financial instrument used in the hedging transactions was effective at offsetting changes in either the fair values or cash flows of the related underlying exposures. This assessment is monitored on at least a quarterly basis, and the change in fair market value of any ineffective portion of a financial instrument would be immediately recognized into earnings. For each of the six months ended June 30, 2017 and June 30, 2016, the Company realized $0.5 million in gains from its cash flow hedge into Other revenue. As of June 30, 2017, the Company expects $0.5 million to be reclassified from Other comprehensive income into Other revenue within the next 12 months.

At June 30, 2017, the fair value of the Company's derivative instrument was $0.8 million compared to $1.7 million at December 31, 2016, and is reported in the Company's consolidated balance sheet within deposits and other assets. Refer to Note 4 - Fair Value Measurements for additional information related to the estimated fair value.

Note 6 — Shareholders’ Equity

The Company is authorized by the Board of Directors to acquire its stock through open market purchases under its share repurchase program. As repurchase authority is used, the Board of Directors has, to date, authorized additional expenditures for share repurchases.

Share repurchases consisted of the following during the periods indicated:

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Shares repurchased (not in thousands)	589,057		55,148		604,497		369,997
Average price per share	$	142.16	$	139.08	$	142.66	$	166.70
Total (in thousands)	$	83,740	$	7,670	$	86,240	$	61,679

During the six months ended June 30, 2017, the Company declared and paid recurring cash dividends of $1.40 per share, or $23.2 million.

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Note 7 — Earnings per Share

Basic and diluted earnings per share are computed pursuant to the two-class method. Under this method, the Company attributes net income to two classes: common stock and unvested restricted stock. Unvested restricted stock awards granted to employees under the Company’s Long-Term Incentive Plan are considered participating securities as they receive non-forfeitable rights to cash dividends at the same rate as common stock.

Diluted net income per share is calculated using the more dilutive of the two methods. Under both methods, the exercise of employee stock options is assumed using the treasury stock method. The assumption of vesting of restricted stock, however, differs:

1. Assume vesting of restricted stock using the treasury stock method.

2. Assume unvested restricted stock awards are not vested, and allocate earnings to common shares and unvested restricted stock awards using the two-class method.

For the three and six months ended June 30, 2017, the second method, which assumes unvested awards are not vested, was used in the computation because it was more dilutive than the first method.

The following table sets forth the computation of net income per share, on a basic and diluted basis, for the periods indicated (share count and dollar amounts other than per-share amounts in table are in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Basic:
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Less net income allocated to participating securities	(780		)	(350		)	(1,461		)	(758		)
Net income attributable to common stock	$	47,695		$	60,497		$	88,646		$	132,069
Net income per share, basic	$	2.94		$	3.68		$	5.44		$	7.98
Weighted-average shares outstanding	16,198			16,420			16,290			16,549
Diluted:
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Less net income allocated to participating securities	(779		)	(350		)	(1,459		)	(757		)
Net income attributable to common stock	$	47,696		$	60,497		$	88,648		$	132,070
Net income per share, diluted	$	2.94		$	3.68		$	5.43		$	7.97
Weighted-average shares outstanding	16,198			16,420			16,290			16,549
Dilutive effect of stock options and restricted stock	71			36			92			42
Adjusted weighted-average shares outstanding under treasury stock method	16,269			16,456			16,382			16,591
Participating securities excluded under two-class method	(49		)	(14		)	(65		)	(17		)
Adjusted weighted-average shares outstanding under two-class method	16,220			16,442			16,317			16,574

For the three and six months ended June 30, 2017, anti-dilutive shares excluded from the calculation of earnings per share were 62,605 and 45,940 (shares not in thousands), respectively.

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Note 8 — Commitments and Contingencies

As of June 30, 2017, the Company had firm commitments to purchase the following aircraft:

Aircraft Type	Number of Aircraft Under Contract
Airbus A319	4
Airbus A320	21

Future minimum fixed payments for the Company's commitments related to the acquisition of aircraft (including aircraft lease obligations), airport fees under use and lease agreements, and other operating lease obligations are as follows as of June 30, 2017 (in thousands):

	As of June 30, 2017
Remaining in 2017	$	262,010
2018	139,079
2019	112,040
2020	74,306
2021	33,047
Thereafter	230,593
Total commitments	$	851,075

Contingencies

The Company is subject to certain legal and administrative actions it considers routine to its business activities. The Company believes the ultimate outcome of any pending legal or administrative matters will not have a material adverse impact on its financial position, liquidity or results of operations.

Note 9 — Related Party Transactions

The Company previously entered into a lease agreement for approximately 70,000 square feet of office space in a building in which the Company’s Chairman and Chief Executive Officer ("CEO") and the Company's President owned minority interests as limited partners. The Company exercised its option to terminate the lease effective in May 2015 and paid $1.3 million in January 2016 in settlement of related litigation.

Entities owned or controlled by the Company's Chairman and CEO have been paid for the building of corporate training content. This approach to training focuses on concept mastery, recognizing that individuals learn at varying paces, through different styles, and is designed to ensure the trainee fully understands each module before moving on to more advanced training. During the six months ended June 30, 2017 and 2016, the Company made payments to these entities of $0.2 million and $1.4 million, respectively, and no further payments are expected.

Note 10 — Subsequent Events

In July 2017, the Company borrowed $68.0 million under loan agreements secured by two Airbus A320 series aircraft. The notes bear interest at a floating rate based on LIBOR plus an average margin of 1.50 percent and are payable in quarterly installments through July 2027.

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 our results of operations during the three and six months ended June 30, 2017 and 2016. Also discussed is our financial position as of June 30, 2017 and December 31, 2016. You should read this discussion in conjunction with our unaudited consolidated financial statements, including the notes thereto, appearing elsewhere in this Form 10-Q and our consolidated financial statements appearing in our annual report on Form 10-K for the year ended December 31, 2016. This discussion and analysis contains forward-looking statements. Please

12

refer to the section below entitled “Cautionary Note Regarding Forward-Looking Statements” for a discussion of the uncertainties, risks and assumptions associated with these statements.

SECOND QUARTER REVIEW

Highlights:

• Added five Airbus A320 series aircraft into service and retired two MD-80 aircraft;

• entered into a lease agreement for 13 Airbus A320 series aircraft to be delivered in 2017 and 2018, which will solidify the plan to retire all MD-80 aircraft by the end of 2019;

• operating 382 routes as of quarter end versus 342 at the same point in 2016, and started service on 24 new routes during the quarter;

• returned $83.7 million to shareholders through open market stock repurchases;

• paid quarterly recurring cash dividends of $11.5 million during the quarter, $23.2 million year to date; and

• raised $112.5 million in debt.

AIRCRAFT

The following table sets forth the aircraft in service and operated by us as of the dates indicated:

	June 30, 2017	December 31, 2016	June 30, 2016
MD-80	45	47	49
B757-200	2	4	5
A319 (1)	20	17	15
A320 (2)	21	16	16
Total	88	84	85

(1) Excludes 12 A319 aircraft on lease to a European carrier until 2018.

(2) Excludes one A320 aircraft currently being prepared for revenue service as of June 30, 2017.

As of June 30, 2017, we had firm commitments to purchase 25 Airbus A320 series aircraft and had executed lease agreements for 13 Airbus A320 series aircraft for which we have not yet taken delivery. We expect delivery of 14 aircraft in the second half of 2017 and the remaining aircraft in 2018 through 2020. We continuously consider aircraft acquisitions on an opportunistic basis.

Fleet Plan

The below table indicates the number of aircraft expected to be in service as of the dates indicated, based on currently scheduled additions to, and retirements from, our operating fleet.

	As of September 30, 2017	As of December 31, 2017
MD-80	40	37
B757-200	2	—
A319	21	22
A320	25	29
Total	88	88

NETWORK

Our operating network as of June 30, 2017 represents an 11.7 percent increase in the number of routes flown compared to June 30, 2016. Our total number of under-served cities and leisure destinations were 98 and 20, compared with 95 and 19 as of June 30, 2017 and 2016, respectively. As of July 14, 2017, we were selling 408 routes.

TRENDS

In continuing with our fleet transition plan, we added five Airbus A320 series aircraft to our operating fleet during the second quarter 2017, including our first two newly manufactured aircraft. Airbus aircraft flew 55.4 percent of our system ASMs for the quarter and we expect ten more Airbus A320 series aircraft to be placed in service by the end of 2017. Average block hours per aircraft has increased by 12.5 percent quarter over quarter due to increased flying of Airbus aircraft as well as our mix of off-peak flying. Off-peak flying accounted for nearly 29 percent of ASMs for the first two quarters in 2017, versus approximately 26 percent for the same period in 2016.

We retired two MD-80 aircraft during the quarter and expect to retire eight more MD-80 aircraft and our two remaining Boeing 757-200 aircraft by the end of 2017. Our scheduled MD-80 retirements could be accelerated if unexpected major maintenance were to be needed.

Irregular operations, as well as costs necessary to effectively transition to a single fleet type, have contributed to increased costs during the second quarter 2017. Costs associated with these needs, such as higher pilot staffing levels to support our flight schedule with three separate aircraft types, while continually training additional Airbus pilots to support the growing number of operating Airbus aircraft, will continue until the fleet transition nears completion.

During the quarter we announced 28 new routes expected to begin in the second half of 2017, including service into three new cities - Milwaukee, Wisconsin; Norfolk, Virginia; and Gulfport, Mississippi. As of June 30, 2017, we were offering service on 123 medium-sized city routes compared to 87 as of the same date in 2016. Our East Coast presence continues to be an area of focus, with 62.3 percent of scheduled service ASMs represented by Eastern markets, and we have commenced seasonal service to Destin, Florida, our newest base.

The collective bargaining agreement reached with the International Brotherhood of Teamsters for our pilots became effective on August 1, 2016. Incremental expense related to the initial year of this agreement (including head count increases) in the first half of 2017 was approximately $31 million. We will continue to see incremental expense for this agreement over the remainder of the five-year agreement term.

We have two employee groups which have voted for union representation and with which we have yet to reach agreement - flight attendants and flight dispatchers. These employees make up approximately 31 percent of our total employee base. Any labor actions following an inability to reach collective bargaining agreements with these employee groups could materially impact our operations during the continuance of any such activity. Any labor agreement reached following negotiations would also likely increase our operating costs.

RESULTS OF OPERATIONS

Comparison of three months ended June 30, 2017 to three months ended June 30, 2016

Operating Revenue

Scheduled service revenue. Scheduled service revenue for the second quarter 2017 increased 16.7 percent compared to 2016. The increase was primarily driven by a 14.6 percent increase in scheduled service passengers, aided by an increase in scheduled service average base fare.

Ancillary air-related charges. Ancillary air-related charges for the second quarter 2017 increased 13.0 percent compared to 2016, due mostly to the increase in scheduled service passengers. The increase was slightly diluted by a 1.4 percent decrease in average ancillary air-related fare per passenger which correlates with a 3.1 percent reduction in stage length, as shorter trips tend to produce lower ancillary charges.

Ancillary third party revenue. Ancillary third party revenue increased 19.5 percent for the second quarter 2017 compared to 2016 due to revenue generated from our co-branded credit card program which launched in third quarter 2016. This increase from co-branded credit card revenue was slightly offset by a decrease in net revenue from third party products (hotel rooms,

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rental cars, attraction and show tickets) driven by a 7.5 percent and 5.5 percent decrease in hotel room nights and rental car days, respectively. Overall, there was a 4.3 percent increase in ancillary third party revenue per passenger year over year.

Fixed fee contract revenue. Fixed fee contract revenue for the second quarter 2017 increased $4.3 million from 2016 due mostly to increased flying for both the Department of Defense and under our Apple Vacations charter.

Operating Expenses

We primarily evaluate our expense management by comparing our costs per passenger and per ASM across different periods, which enables us to assess trends in each expense category. The following table presents operating expense per passenger for the indicated periods. The table also presents operating expense per passenger, excluding fuel, a statistic which gives management and investors the ability to measure and monitor our cost performance absent fuel price volatility. Both the cost and availability of fuel are subject to many economic and political factors beyond our control.

	Three Months Ended June 30,				Percent
	2017		2016		Change
Aircraft fuel*	$	25.83	$	20.85	23.9	%
Salary and benefits	27.89		23.82		17.1
Station operations	11.80		11.58		1.9
Maintenance and repairs	8.66		10.17		(14.8	)
Depreciation and amortization	9.11		8.82		3.3
Sales and marketing	3.89		1.85		110.3
Aircraft lease rentals	0.73		0.08		NM
Other	7.49		6.34		18.1
Operating expense per passenger*	$	95.40	$	83.51	14.2	%
Operating expense per passenger, excluding fuel	$	69.57	$	62.66	11.0	%

*Includes effect of $8.3 million fuel tax refunds in the second quarter of 2016.

NM - Not meaningful

The following table presents unit costs on a per ASM basis, or CASM, for the indicated periods. As on a per-passenger basis, excluding fuel on a per ASM basis provides management and investors the ability to measure and monitor our cost performance absent fuel price volatility.

	Three Months Ended June 30,						Percent
	2017			2016			Change
Aircraft fuel*		2.38	¢		1.89	¢	25.9	%
Salary and benefits	2.57			2.16			19.0
Station operations	1.09			1.05			3.8
Maintenance and repairs	0.80			0.92			(13.0	)
Depreciation and amortization	0.84			0.80			5.0
Sales and marketing	0.36			0.17			111.8
Aircraft lease rentals	0.07			0.01			NM
Other	0.69			0.56			23.2
CASM*		8.80	¢		7.56	¢	16.4	%
Operating CASM, excluding fuel		6.42	¢		5.67	¢	13.2	%

*Includes effect of $8.3 million fuel tax refunds in the second quarter of 2016.

NM - Not meaningful

Aircraft fuel expense. Aircraft fuel expense increased 42.3 percent for the second quarter 2017 compared to 2016. Excluding one-time, $8.3 million fuel tax refunds in the second quarter of 2016, fuel expense would have increased 25.0 percent year over year and the system average fuel cost per gallon would have increased by 10.3 percent. Additionally, there was a 12.9 percent increase in system fuel gallons consumed due to an increase in total system capacity of 12.7 percent.

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Salary and benefits expense. Salary and benefits expense increased $23.7 million or 34.5 percent for the second quarter 2017 when compared to the same period last year. The increase is largely attributable to $16.8 million in incremental expense related to the collective bargaining agreement with our pilots, which went into effect in August 2016, as well as costs associated with a 12.4 percent increase in the number of full-time equivalent employees needed to support additional operating aircraft and the transition to a single fleet type. Additionally, stock compensation expense increased incrementally by $1.9 million related to management equity grants which were not in place in second quarter 2016.

Station operations expense. Station operations expense for the second quarter 2017 increased 17.0 percent on a 17.0 percent increase in scheduled service departures compared to the same period in 2016.

Maintenance and repairs expense. Maintenance and repairs expense for the second quarter 2017 decreased 2.1 percent compared to the same period in 2016. This is mostly due to a decrease in major maintenance expense for our MD-80 aircraft, as there was a higher number of events in the prior year because the number of MD-80 aircraft in service was higher in the second quarter 2016. This decrease was partially offset by an increase in expenses related to parts repairs and routine maintenance in the current quarter. We expect routine maintenance expenses for our used Airbus aircraft to increase over time as repair costs for these aircraft are generally more expensive than similar maintenance for our MD-80 aircraft.

Depreciation and amortization expense. Depreciation and amortization expense for the second quarter 2017 increased 18.6 percent compared to 2016. Depreciation expense for the remainder of 2017 will continue to outpace 2016 as retirement of our MD-80 aircraft has been accelerated to 2019 or earlier. We also continue to add Airbus aircraft into service which result in higher incremental monthly depreciation expense than our MD-80s.

Sales and marketing expense. Sales and marketing expense for the second quarter 2017 increased $7.5 million compared to the same period in 2016, mostly due to an increase in net credit card fees paid by us. We previously charged for credit card fee reimbursement (a fee charged to customers for using a credit card) at zero margin, which was applied as a reduction to sales and marketing expense, and the net amount paid by us for credit card fees was reduced. We discontinued the charge for credit card fee reimbursement in January 2017, although this charge still applies to travel booked up to the discontinuation date. Credit card fee reimbursements for the second quarter (which were recorded as reductions of sales and marketing expense) declined to $0.6 million from $6.3 million in the second quarter 2016, accounting for the majority of the increase in this line item year over year.

Aircraft lease rentals expense. Aircraft lease rentals expense for the second quarter 2017 increased $2.2 million compared to 2016 due to subservice flights needed for irregular operations. We do not currently have operating aircraft under lease.

Other operating expense. Other operating expense for the second quarter 2017 increased $6.5 million compared to 2016. The increase in expense is due to increased flight crew training needed to support our growing operating fleet and network, as well as losses taken on the disposal of assets.

Income Tax Expense

Our effective tax rate remained relatively flat quarter over quarter, at 38.1 percent for the three months ended June 30, 2017, compared to 38.0 percent for the three months ended June 30, 2016. While we expect our tax rate to be fairly consistent in the near term, it will vary depending on recurring items such as the amount of income we earn in each state and the state tax rate applicable to such income. Discrete items during interim periods may also affect our tax rates.

15

Comparison of six months ended June 30, 2017 to six months ended June 30, 2016

Operating Revenue

Scheduled service revenue. Scheduled service revenue for the six months ended June 30, 2017 increased 10.7 percent compared with 2016. The increase was mostly the result of a 12.8 percent increase in scheduled service passengers offset by a 1.8 percent decrease in scheduled service average base fare, which was affected by a 24.2 percent increase in off-peak capacity period over period.

Ancillary air-related charges. Ancillary air-related charges for the six months ended June 30, 2017 increased 10.9 percent compared with 2016 due mostly to the increase in scheduled service passengers. These effects were diluted by a 1.7 percent decrease in ancillary air-related charges per passenger as items such as bag fees tend to decrease in correlation with a shorter stage length and lower base fare.

Ancillary third party revenue. Ancillary third party revenue for the six months ended June 30, 2017 increased $3.8 million over the same period in 2016 due to revenue generated from our co-branded credit card program which launched in third quarter 2016. This increase from co-branded credit card revenue was slightly offset by a decrease in net revenue from third party products (hotel rooms, rental cars, attraction and show tickets), partially driven by a 5.4 percent decrease in hotel room nights. Overall, there was a 3.0 percent increase in ancillary third party revenue per passenger year over year.

Fixed fee contract revenue. Fixed fee contract revenue for the six months ended June 30, 2017 increased $8.8 million compared with 2016, due to increased flying for both the Department of Defense and under our Apple Vacations charter.

Operating Expenses

The following table presents operating expense per passenger for the indicated periods:

	Six Months Ended June 30,				Percent
	2017		2016		Change
Aircraft fuel*	$	27.48	$	20.77	32.3	%
Salary and benefits	30.47		25.18		21.0
Station operations	11.45		11.71		(2.2	)
Maintenance and repairs	9.49		10.19		(6.9	)
Depreciation and amortization	9.81		9.15		7.2
Sales and marketing	3.69		2.03		81.8
Aircraft lease rentals	0.41		0.08		NM
Other	7.13		6.40		11.4
Operating expense per passenger*	$	99.93	$	85.51	16.9	%
Operating expense per passenger, excluding fuel	$	72.45	$	64.74	11.9	%

*Includes effect of $8.3 million fuel tax refunds in the second quarter of 2016.

NM - Not meaningful

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The following table presents unit costs on a per ASM basis, defined as Operating CASM, for the indicated periods:

	Six Months Ended June 30,						Percent
	2017			2016			Change
Aircraft fuel*		2.44	¢		1.84	¢	32.6	%
Salary and benefits	2.71			2.23			21.5
Station operations	1.02			1.04			(1.9	)
Maintenance and repairs	0.84			0.90			(6.7	)
Depreciation and amortization	0.87			0.81			7.4
Sales and marketing	0.33			0.18			83.3
Aircraft lease rentals	0.04			0.01			NM
Other	0.63			0.56			12.5
CASM*		8.88	¢		7.57	¢	17.3	%
Operating CASM, excluding fuel		6.44	¢		5.73	¢	12.4	%

*Includes effect of $8.3 million fuel tax refunds in the second quarter of 2016.

NM - Not meaningful

Aircraft fuel expense. Aircraft fuel expense increased 49.6 percent for the six months ended June 30, 2017 compared to the same period in 2016. Excluding the effect of one-time $8.3 million in fuel tax refunds in the second quarter 2016, fuel expense would have increased 39.4 percent and the system average fuel cost per gallon would have increased by 23.9 percent. Additionally, there was a 12.9 percent increase in system fuel gallons consumed due to an increase in total system capacity of 12.6 percent.

Salary and benefits expense. Salary and benefits expense increased $50.8 million or 36.8 percent for the six months ended June 30, 2017 compared to the same period in 2016. The increase is largely attributable to $31.0 million in incremental expense related to the collective bargaining agreement with our pilots, which went into effect in August 2016, as well as costs associated with a 12.4 percent increase in the number of full-time equivalent employees needed to support additional operating aircraft and the transition to a single fleet type. Additionally, stock compensation expense increased incrementally by $4.4 million related to management equity grants which were not in place in the first half of 2016.

Station operations expense. Station operations expense for the six months ended June 30, 2017 increased 10.6 percent on a 17.0 percent increase in scheduled service departures compared to the same period in 2016. Decreases in various supplementary station expenses contributed to growth in departures outpacing the increase in expense.

Maintenance and repairs expense. Maintenance and repairs expense for the six months ended June 30, 2017 increased 5.4 percent compared with the same period in 2016, due primarily to a 2.4 percent increase in average number of aircraft in service as well as incremental expenses related to parts repairs and routine maintenance on our Airbus aircraft. We expect routine maintenance expenses for our used Airbus aircraft to increase over time as repair costs for these aircraft are generally more expensive than similar maintenance for our MD-80 aircraft.

Depreciation and amortization expense. Depreciation and amortization expense for the six months ended June 30, 2017 increased by 21.2 percent, compared to the same period in 2016. Depreciation expense for the remainder of 2017 will continue to outpace 2016 as retirement of our MD-80 aircraft has been accelerated to 2019 or earlier. We have also added ten Airbus aircraft into service as of June 30, 2017 when compared to the same date in 2016, which results in higher incremental monthly depreciation expense than our MD-80s. Additionally, this expense was affected by major maintenance amortization for our Airbus aircraft in accordance with the deferral method of accounting. Prior to June 2016, we had not incurred any major maintenance costs on our Airbus aircraft.

Sales and marketing expense. Sales and marketing expense for the six months ended June 30, 2017 increased $11.7 million compared to the same period in 2016, mostly due to an increase in net credit card fees paid by us. We previously charged for credit card fee reimbursement (a fee charged to customers for using a credit card) at zero margin, which was applied as a reduction to sales and marketing expense, and the net amount paid by us for credit card fees was reduced. We discontinued the charge for credit card fee reimbursement in January 2017, although this charge still applies to travel booked up to the discontinuation date. Consequently, credit card fee reimbursements for the first half of 2017 (which were recorded as reductions of sales and marketing expense) declined to $4.0 million from $13.2 million in the first half of 2016. There were also year-over-year increased expenses related to various marketing initiatives for our growing network.

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Aircraft lease rentals expense. Aircraft lease rentals expense for the six months ended June 30, 2017 increased $2.1 million compared to the same period in 2016 due to additional subservice flights needed for irregular operations in the second quarter 2017. We do not currently have operating aircraft under lease.

Other expense. Other operating expense for the six months ended June 30, 2017 increased $9.2 million compared to 2016. The increase is partially due to losses recorded on disposed aircraft parts in 2017 compared to a gain of over $2.0 million recorded on an engine sale in 2016. Additionally, property taxes on higher asset amounts, and expenses related to crew training in 2017 to support our fleet transition and network growth, also increased year over year.

Income Tax Expense

Our effective tax rate remained flat at 37.6 percent for each of the six months ended June 30, 2017 and 2016. The effective tax rate for the six months ended June 30, 2017 differed from the statutory federal income tax rate of 35.0 percent primarily due to executive compensation deduction limitations as well as state and foreign taxes. While we expect our tax rate to be fairly consistent in the near term, it will vary depending on recurring items such as the amount of income we earn in each state and the state tax rate applicable to such income. Discrete items during interim periods may also affect our tax rates.

18

Comparative Consolidated Operating Statistics

The following tables set forth our operating statistics for the periods indicated:

	Three Months Ended June 30,						Percent
	2017			2016			Change*
Operating statistics (unaudited):
Total system statistics:
Passengers	3,306,193			2,878,460			14.9
Revenue passenger miles (RPMs) (thousands)	2,958,808			2,665,753			11.0
Available seat miles (ASMs) (thousands)	3,584,209			3,178,904			12.7
Load factor	82.6		%	83.9		%	(1.3	)
Operating expense per ASM (CASM) (cents)***	8.80			7.56			16.4
Fuel expense per ASM (cents)***	2.38			1.89			25.9
Operating CASM, excluding fuel (cents)	6.42			5.67			13.2
ASMs per gallon of fuel	71.9			72.0			(0.1	)
Departures	24,721			20,969			17.9
Block hours	56,056			48,506			15.6
Average stage length (miles)	866			893			(3.0	)
Average number of operating aircraft during period	85.3			83.8			1.8
Average block hours per aircraft per day	7.2			6.4			12.5
Full-time equivalent employees at end of period	3,628			3,228			12.4
Fuel gallons consumed (thousands)	49,858			44,153			12.9
Average fuel cost per gallon***	$	1.71		$	1.36		25.7

Scheduled service statistics:
Passengers	3,266,789			2,850,112			14.6
Revenue passenger miles (RPMs) (thousands)	2,903,257			2,626,770			10.5
Available seat miles (ASMs) (thousands)	3,436,872			3,072,135			11.9
Load factor	84.5		%	85.5		%	(1.0	)
Departures	23,609			20,171			17.0
Block hours	53,632			46,763			14.7
Total scheduled service revenue per ASM (TRASM) (cents)**	11.07			10.74			3.1
Average fare - scheduled service	$	67.54		$	66.36		1.8
Average fare - ancillary air-related charges	$	44.51		$	45.16		(1.4	)
Average fare - ancillary third party products	$	4.38		$	4.20		4.3
Average fare - total	$	116.43		$	115.72		0.6
Average stage length (miles)	869			897			(3.1	)
Fuel gallons consumed (thousands)	47,821			42,698			12.0
Average fuel cost per gallon***	$	1.70		$	1.36		25.0
Percent of sales through website during period	95.1		%	93.9		%	1.2

* Except load factor and percent of sales through website during period, which are presented as a percentage point change.

** Various components of this measure do not have a direct correlation to ASMs. This measure is provided on a per ASM basis so as to facilitate comparison with airlines reporting revenues on a per ASM basis.

*** Includes effect of $8.3 million fuel tax refunds in the second quarter of 2016.

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	Six Months Ended June 30,						Percent
	2017			2016			Change*
Operating statistics (unaudited):
Total system statistics:
Passengers	6,187,441			5,471,367			13.1
Revenue passenger miles (RPMs) (thousands)	5,667,306			5,185,903			9.3
Available seat miles (ASMs) (thousands)	6,961,046			6,180,289			12.6
Load factor	81.4		%	83.9		%	(2.5	)
Operating expense per ASM (CASM) (cents)***	8.88			7.57			17.3
Fuel expense per ASM (cents)***	2.44			1.84			32.6
Operating CASM, excluding fuel (cents)	6.44			5.73			12.4
ASMs per gallon of fuel	72.0			72.1			(0.1	)
Departures	47,016			39,887			17.9
Block hours	109,249			94,776			15.3
Average stage length (miles)	883			913			(3.3	)
Average number of operating aircraft during period	85.0			83.0			2.4
Average block hours per aircraft per day	7.1			6.3			12.7
Full-time equivalent employees at end of period	3,628			3,228			12.4
Fuel gallons consumed (thousands)	96,708			85,676			12.9
Average fuel cost per gallon***	$	1.76		$	1.33		32.3

Scheduled service statistics:
Passengers	6,112,269			5,417,421			12.8
Revenue passenger miles (RPMs) (thousands)	5,565,191			5,110,323			8.9
Available seat miles (ASMs) (thousands)	6,674,035			5,970,086			11.8
Load factor	83.4		%	85.6		%	(2.2	)
Departures	44,857			38,346			17.0
Block hours	104,507			91,326			14.4
Total scheduled service revenue per ASM (TRASM) (cents)**	11.04			11.11			(0.6	)
Average fare - scheduled service	$	70.80		$	72.12		(1.8	)
Average fare - ancillary air-related charges	$	45.31		$	46.08		(1.7	)
Average fare - ancillary third party products	$	4.42		$	4.29		3.0
Average fare - total	$	120.53		$	122.49		(1.6	)
Average stage length (miles)	887			917			(3.3	)
Fuel gallons consumed (thousands)	92,713			82,852			11.9
Average fuel cost per gallon***	$	1.75		$	1.33		31.6
Percent of sales through website during period	94.2		%	94.1		%	0.1

* Except load factor and percent of sales through website during period, which are presented as a percentage point change.

** Various components of this measure do not have a direct correlation to ASMs. This measure is provided on a per ASM basis so as to facilitate comparison with airlines reporting revenues on a per ASM basis.

*** Includes effect of $8.3 million fuel tax refunds in the second quarter of 2016.

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LIQUIDITY AND CAPITAL RESOURCES

Current liquidity

Cash, restricted cash and investment securities (short-term and long-term) increased from $470.5 million at December 31, 2016 to $514.3 million at June 30, 2017. Restricted cash represents escrowed funds under fixed fee contracts and cash collateral against letters of credit required by hotel properties for guaranteed room availability, airports and certain other parties. Under our fixed fee flying contracts, we require our customers to prepay for flights to be provided by us. The prepayments are escrowed until the flight is completed and are recorded as restricted cash with a corresponding amount as air traffic liability. Investment securities represent highly liquid marketable securities which are available-for-sale.

21

During the first six months of 2017, our primary source of funds was $263.1 million generated by operations as well as $134.5 million in proceeds from long-term debt issuance. Our operating cash flows and borrowings have allowed us to invest in our fleet transition and return capital to shareholders. We believe we have more than adequate liquidity resources through our operating cash flows, borrowings, and cash balances, to meet our future contractual obligations, and expect to finance a significant portion of the purchase price of our newly manufactured Airbus aircraft order on acceptable terms. We continue to consider raising funds through debt financing on an opportunistic basis.

In addition to our recurring quarterly cash dividend, we plan to continue repurchasing our stock in the open market subject to availability of cash resources and compliance with our debt covenants. In July 2017, our board of directors replenished our repurchase authority to a total of $100 million. There is no expiration to this program.

Debt

Our long-term debt obligations, without reduction for related issuance costs, increased from $813.2 million as of December 31, 2016 to $882.4 million as of June 30, 2017 as we borrowed additional funds secured by aircraft while making scheduled repayments on our existing debt. During the second quarter 2017 we borrowed $112.5 million secured by seven aircraft.

Sources and Uses of Cash

Operating Activities. During the six months ended June 30, 2017, our operating activities provided $263.1 million of cash compared to $256.1 million during the same period of 2016. The year-over-year increase in cash inflows was primarily impacted by adjustments made for non-cash items such as deferred income taxes, as well as a decrease in accounts receivable, which offset the effects of lower net income for the six months ended June 30, 2017.

Operating cash inflows are primarily derived from providing air transportation and related ancillary products and services to customers, and we expect to use that cash flow to purchase aircraft and equipment, make scheduled debt payments, and return capital to shareholders through share repurchases and dividends. 

Investing Activities. Cash used in investing activities was $269.5 million during the six months ended June 30, 2017 compared to $118.9 million for the same period in 2016. The year-over-year increase is due primarily to $182.3 million in property and equipment purchases and pre-delivery deposits compared to $105.2 million in the same period of 2016. Additionally, our net cash used to purchase investment securities (net of proceeds from maturities) was $88.6 million during the first six months of 2017 compared to $17.5 million for the same period in 2016.

Financing Activities. Cash used in financing activities for the six months ended June 30, 2017 was $38.3 million compared to $118.6 million for the same period in 2016. During the first six months of 2017, we repurchased common stock for $84.9 million and paid cash dividends of $23.2 million, compared to the repurchase of common stock for $63.3 million and payment of cash dividends of $44.4 million ($27.7 million of which was a special dividend declared in December 2015) in the same period of 2016. These uses were offset by proceeds from the issuance of debt net of principal payments of $69.7 million in 2017, while principal payments exceeded proceeds from issuance of debt by $11.2 million in the same period of 2016.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

We have made forward-looking statements in this quarterly report on Form 10-Q, and in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” that are based on our management’s beliefs and assumptions, and on information currently available to our management. Forward-looking statements include information concerning our possible or assumed future results of operations, business strategies, fleet plan, financing plans, competitive position, industry environment, potential growth opportunities, future service to be provided and the effects of future regulation

22

and competition. Forward-looking statements include all statements that are not historical facts and can be identified by the use of forward-looking terminology such as the words “believe,” “expect,” “anticipate,” “intend,” “plan,” “estimate,” “project” or similar expressions.

Forward-looking statements involve risks, uncertainties and assumptions. Actual results may differ materially from those expressed in the forward-looking statements. Important risk factors that could cause our results to differ materially from those expressed in the forward-looking statements may be found in our periodic reports filed with the Securities and Exchange Commission at www.sec.gov. These risk factors include, without limitation, an accident involving or problems with our aircraft, our reliance on automation systems, limitation on growth as we transition to a single fleet type, risk of breach of security of personal data, volatility of fuel costs, labor issues and costs, the ability to obtain regulatory approvals as needed, the effect of economic conditions on leisure travel, debt covenants and balances, the ability to finance aircraft under contract, terrorist attacks, risks inherent to airlines, the competitive environment, our reliance on third parties who provide facilities or services to us, the possible loss of key personnel, economic and other conditions in markets in which we operate, governmental regulation, increases in maintenance costs and cyclical and seasonal fluctuations to our operating results. 

Any forward-looking statements are based on information available to us today and we undertake no obligation to publicly update any forward-looking statements, whether as a result of future events, new information or otherwise.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

A description of our critical accounting policies is included in Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2016. There has been no material change to these policies during the six months ended June 30, 2017.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We are subject to certain market risks, including commodity prices (specifically aircraft fuel). The adverse effects of changes in these markets could pose potential losses as discussed below. The sensitivity analysis provided does not consider the effects that such adverse changes may have on overall economic activity, nor does it consider additional actions we may take to mitigate our exposure to such changes. Actual results may differ.

Aircraft Fuel

Our results of operations can be significantly impacted by changes in the price and availability of aircraft fuel, as aircraft fuel expense represented 27.5 percent of our operating expenses for the six months ended June 30, 2017. Increases in fuel prices, or a shortage of supply, could have a material impact on our operations and operating results. Based on our fuel consumption for the three and six months ended June 30, 2017, a hypothetical ten percent increase in the average price per gallon of fuel would have increased fuel expense by approximately $8.3 million and $17.6 million, respectively. We have not hedged fuel price risk in recent years.

Interest Rates

As of June 30, 2017, we had a total of $414.7 million in variable-rate debt, including current maturities and without reduction for related costs. A hypothetical 100 basis point change in market interest rates for the six months ended June 30, 2017, would have affected interest expense by $1.9 million.

As of June 30, 2017, we had $467.7 million of fixed-rate debt, including current maturities and without reduction for related costs, which had a fair value of $484.9 million. A hypothetical 100 basis point change in market interest rates would not impact interest expense or have a material effect on the fair value of our fixed-rate debt instruments as of such date.

See Item 7A "Quantitative and Qualitative Disclosures About Market Risk" in the Company's Annual Report on Form 10-K for the year ended December 31, 2016, for further information about market risk.

Item 4. Controls and Procedures

As of June 30, 2017, under the supervision and with the participation of our management, including our chief executive officer (“CEO”) and chief financial officer (“CFO”), we evaluated the design and operation of our disclosure controls and procedures of the Securities Exchange Act of 1934, as amended, or the “Exchange Act.” Based on this evaluation, our management has concluded that our disclosure controls and procedures are designed, and are effective, to give reasonable assurance that the information we are required to disclose is recorded, processed, summarized and reported within the time periods specified in

23

the SEC’s rules and forms. Based upon this evaluation, management concluded that our disclosure controls and procedures are effective in providing reasonable assurance that information required to be disclosed in our reports filed with the SEC under the Exchange Act is accumulated and communicated to management as appropriate to allow timely decisions regarding required disclosure.

There were no changes in our internal control over financial reporting that occurred during the quarter ending June 30, 2017, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

We are subject to certain legal and administrative actions we consider routine to our business activities. We believe the ultimate outcome of any pending legal or administrative matters will not have a material adverse impact on our financial position, liquidity or results of operations.

Item 1A.  Risk Factors

We have evaluated our risk factors and determined there are no changes to the risk factors set forth in Part I, Item 1A of our Annual Report on Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Our Repurchases of Equity Securities

The following table reflects the repurchases of our common stock during the second quarter 2017:

Period	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of our Publicly Announced Plan	Approximate Dollar Value of Shares that May Yet be Purchased Under the Plans or Programs (in thousands) (2)
April	55,491	$	146.50	55,400
May	290,587	143.40		282,358
June	251,299	139.90		251,299
Total	597,377	$	142.22	589,057	$	3,096

(1)	Includes shares repurchased from employees who vested a portion of their restricted stock grants. These share repurchases were made at the election of each employee pursuant to an offer to repurchase by us. In each case, the shares repurchased constituted the portion of vested shares necessary to satisfy income tax withholding requirements.
(2)	Represents the remaining dollar amount of open market purchases of our common stock which has been authorized by the Board under a share repurchase program. Subsequent to June 30, 2017, the Board approved additional share repurchase authority, and the remaining share repurchase authority as of July 26, 2017 was $100 million.

Item 3. Defaults Upon Senior Securities

None

Item 4. Mine Safety Disclosures

Not applicable

Item 5. Other Information

None

24

Item 6. Exhibits

3.1	Articles of Incorporation. (1)
3.2	Bylaws of the Company as amended on February 17, 2015 (2)
12	Calculation of Ratio of Earnings to Fixed Charges of Allegiant Travel Company
31.1	Rule 13a - 14(a) / 15d - 14(a) Certification of Principal Executive Officer
31.2	Rule 13a - 14(a) / 15d - 14(a) Certification of Principal Financial Officer
32	Section 1350 Certifications
101.INS	XBRL Instance 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 Labels Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

(1)	Incorporated by reference to Exhibit filed with Registration Statement #333-134145 filed by the Company with the Commission and amendments thereto.
(2)	Incorporated by reference to Exhibit 3.2 to the Quarterly Report on Form 10-Q for the quarter ended September 30, 2016, filed with the Commission on November 1, 2016.

25

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		ALLEGIANT TRAVEL COMPANY
Date:	July 31, 2017	By:	/s/ Scott Sheldon
		Scott Sheldon, as duly authorized officer of the Company (Chief Financial Officer) and as Principal Financial Officer

26

EX-12

Exhibit 12

Computation of Ratio of Earnings to Fixed Charges

(in thousands, except for ratio)

	Six Months Ended June 30,
	2017
Earnings:
Income before income taxes	$	144,386
Add: Fixed Charges	21,007
Add: Amortization of capitalized interest	74
Less: Interest capitalized	2,337
Less: Earnings from joint venture, net	49
Total earnings	$	163,081
Fixed charges:
Interest costs (1)	$	19,628
Interest factor of operating lease expense (2)	1,379
Total fixed charges	$	21,007
Ratio of earnings to fixed charges (3)	7.76

(1) Interest costs include both interest expensed and capitalized, including amortization of deferred financing costs and original issue discount on debt.

(2) Interest factor of operating lease expense is based on an estimate which the Company considers to be a reasonable approximation.

(3) The ratio of earnings to fixed charges was computed by dividing earnings by fixed charges.

EX-31.1

Exhibit 31.1

Certifications

I, Maurice J. Gallagher, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Allegiant Travel Company;

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 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 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:	July 31, 2017	/s/ Maurice J. Gallagher, Jr.
		Title: Principal Executive Officer

EX-31.2

Exhibit 31.2

Certifications

I, Scott Sheldon, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Allegiant Travel Company;

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 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 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:	July 31, 2017	/s/ Scott Sheldon
		Title: Principal Financial Officer

EX-32

Exhibit 32

Allegiant Travel Company Certification under Section 906 of the Sarbanes/Oxley Act - filed as an exhibit to Form 10-Q for the Quarter Ended June 30, 2017

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 of Allegiant Travel Company (the “Company”) on Form 10-Q for the period ended June 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Maurice J. Gallagher, Jr., Chief Executive Officer of the Company, and Scott Sheldon, 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 our knowledge:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; 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/ Maurice J. Gallagher, Jr.	/s/ Scott Sheldon
Maurice J. Gallagher, Jr.	Scott Sheldon
Principal Executive Officer	Principal Financial Officer
July 31, 2017	July 31, 2017

The foregoing Certification shall not be deemed incorporated by reference by any general statement incorporating by reference this report into any filing under the Securities Act of 1933 or under the Securities Exchange Act of 1934, except to the extent that we specifically incorporate this information by reference, and shall not otherwise be deemed filed under such Acts.

XML

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 14, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	Allegiant Travel CO
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		16,070,344
Amendment Flag	false
Entity Central Index Key	0001362468
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well Known Seasoned Issuer	Yes
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2

XML

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.001
CURRENT ASSETS:
Cash and cash equivalents	$ 20,040	$ 64,711
Restricted cash	11,423	11,647
Short-term investments	323,117	269,269
Accounts receivable	23,917	40,667
Expendable parts, supplies and fuel, net	17,855	16,797
Prepaid expenses	25,753	16,277
Other current assets	4,809	2,686
TOTAL CURRENT ASSETS	426,914	422,054
Property and equipment, net	1,212,771	1,095,314
Long-term investments	159,769	124,834
Deferred major maintenance, net	28,813	17,347
Deposits and other assets	11,730	12,027
TOTAL ASSETS	1,839,997	1,671,576
CURRENT LIABILITIES:
Accounts payable	18,002	16,010
Accrued liabilities	110,842	96,661
Air traffic liability	237,835	194,001
Current maturities of notes payable, net of related costs	116,387	86,226
TOTAL CURRENT LIABILITIES	483,066	392,898
Long-term debt, net of current maturities and related costs	761,082	722,048
Deferred income taxes	127,631	75,338
Other noncurrent liabilities	8,732	7,670
TOTAL LIABILITIES:	1,380,511	1,197,954
SHAREHOLDERS' EQUITY:
Common stock, par value $.001	23	22
Treasury stock	(606,352)	(517,803)
Additional paid in capital	246,906	238,236
Accumulated other comprehensive loss, net	(1,391)	(230)
Retained earnings	820,300	753,397
TOTAL EQUITY	459,486	473,622
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,839,997	$ 1,671,576

XML

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Cash dividends declared per share:	$ 0.70	$ 0.70	$ 1.40	$ 1.00
OPERATING REVENUE:
Scheduled service revenue	$ 220,615	$ 189,122	$ 432,713	$ 390,728
Ancillary revenue:
Air-related charges	145,405	128,713	276,970	249,643
Third party products	14,304	11,965	27,046	23,223
Total ancillary revenue	159,709	140,678	304,016	272,866
Fixed fee contract revenue	11,029	6,706	22,289	13,507
Other revenue	9,261	8,345	17,434	16,366
Total operating revenue	400,614	344,851	776,452	693,467
OPERATING EXPENSES:
Aircraft fuel	85,387	60,005	170,049	113,663
Salary and benefits	92,221	68,553	188,519	137,761
Station operations	38,998	33,328	70,830	64,061
Maintenance and repairs	28,645	29,261	58,740	55,753
Depreciation and amortization	30,129	25,396	60,678	50,081
Sales and marketing	12,861	5,317	22,859	11,125
Aircraft lease rentals	2,400	219	2,564	452
Other	24,777	18,296	44,129	34,968
Total operating expenses	315,418	240,375	618,368	467,864
OPERATING INCOME	85,196	104,476	158,084	225,603
OTHER (INCOME) EXPENSE:
Interest expense	8,889	7,390	17,291	14,629
Interest income	(1,475)	(710)	(2,739)	(1,321)
Other, net	493	300	854	663
Total other expense	6,921	6,380	13,698	12,645
INCOME BEFORE INCOME TAXES	78,275	98,096	144,386	212,958
PROVISION FOR INCOME TAXES	29,800	37,249	54,279	80,131
NET INCOME	$ 48,475	$ 60,847	$ 90,107	$ 132,827
Earnings per share to common stockholders:
Basic	$ 2.94	$ 3.68	$ 5.44	$ 7.98
Diluted	$ 2.94	$ 3.68	$ 5.43	$ 7.97
Shares used for computation:
Basic	16,198,000	16,420,000	16,290,000	16,549,000
Diluted	16,220,000	16,442,000	16,317,000	16,574,000

XML

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net income	$ 48,475	$ 60,847	$ 90,107	$ 132,827
Other comprehensive (loss) income:
Change in available for sale securities, net of tax	(2)	148	222	439
Foreign currency translation adjustments	(215)	43	(298)	(63)
Change in derivatives, net of tax	(341)	6	(556)	(325)
Reclassification of derivative gains into Other revenue	(240)	(245)	(529)	(510)
Total other comprehensive loss	(798)	(48)	(1,161)	(459)
TOTAL COMPREHENSIVE INCOME	$ 47,677	$ 60,799	$ 88,946	$ 132,368

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
OPERATING ACTIVITIES:
Net income	$ 90,107	$ 132,827
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	60,678	50,081
Loss/(gain) on aircraft and other equipment disposals	4,901	(472)
Provision for obsolescence of expendable parts, supplies and fuel	1,753	1,043
Amortization of deferred financing costs	775	745
Share-based compensation expense	7,249	3,002
Deferred income taxes	51,995	2,753
Changes in certain assets and liabilities:
(Increase) decrease in accounts receivable	16,572	(227)
(Increase) decrease in prepaid expenses	(9,476)	584
Increase (decrease) in accounts payable	2,263	3,505
Increase (decrease) in accrued liabilities	10,382	23,888
Increase (decrease) in air traffic liability	43,834	42,731
Increase Decrease for Deferred Major Maintenance, Net	(14,331)	(2,891)
Other, net	(3,558)	(1,470)
Net cash provided by operating activities	263,144	256,099
INVESTING ACTIVITIES:
Purchase of investment securities	(242,895)	(197,611)
Proceeds from maturities of investment securities	154,334	180,078
Aircraft pre-delivery deposits	(63,468)	0
Purchase of property and equipment, including capitalized interest	(118,846)	(105,177)
Other investing activities	1,352	3,773
Net cash used in investing activities	(269,523)	(118,937)
FINANCING ACTIVITIES:
Cash dividends paid to shareholders	(23,204)	(44,355)
Proceeds from the issuance of long-term debt	134,540	28,000
Repurchase of common stock	(84,940)	(63,319)
Principal payments on long-term debt	(64,876)	(39,210)
Other financing activities	188	293
Net cash used in financing activities	(38,292)	(118,591)
Net change in cash and cash equivalents	(44,671)	18,571
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	64,711	87,112
CASH AND CASH EQUIVALENTS AT END OF PERIOD	20,040	105,683
CASH PAYMENTS FOR:
Interest paid, net of amount capitalized	16,001	11,936
Income taxes paid, net of refunds	$ 0	$ 59,928

XML

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited consolidated financial statements include the accounts of Allegiant Travel Company (the “Company”) and its majority-owned operating subsidiaries. The Company has no independent assets or operations, and all guarantees of the Company's publicly held debt are full and unconditional and joint and several. Any subsidiaries of the parent company other than the subsidiary guarantors are minor. All intercompany balances and transactions have been eliminated.

These unaudited consolidated financial statements reflect all normal recurring adjustments which management believes are necessary to present fairly the financial position, results of operations, and cash flows of the Company for the respective periods presented. Certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") have been omitted pursuant to the rules and regulations of the Securities and Exchange Commission for Form 10-Q. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements of the Company and notes thereto included in the annual report of the Company on Form 10-K for the year ended December 31, 2016, filed with the Securities and Exchange Commission.

The preparation of financial statements in conformity with U.S. 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 may differ from these estimates.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)" intended to create a unified model to determine when and how revenue is recognized. Under this ASU and subsequently issued amendments, the core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. Under the new standard, revenue related to certain air-related ancillary fees directly related to ticket revenue, such as seat fees and baggage fees, will no longer be considered distinct performance obligations separate from passenger travel and will be reclassified into scheduled service revenue. In addition, change fees previously recognized when incurred by the customer, will be deferred and recognized as revenue when air travel is provided and reclassified into scheduled service revenue.

The new standard is effective for annual and interim periods beginning after December 15, 2017, and the Company will adopt effective January 1, 2018. The Company continues to evaluate the impact on its financial statements of adopting this new accounting standard and believes that adoption will have little effect on earnings, although the classification of certain air-related ancillary fees, as described above, will change.

In February 2016, the FASB issued ASU 2016-02 related to leases. This standard will require leases with durations greater than twelve months to be recognized on the balance sheet as a lease liability and a corresponding right-of-use asset, and is effective for interim and annual reporting periods beginning after December 15, 2018 with early adoption permitted. The Company has not completed the assessment of this new standard. The Company believes adoption will have a significant impact on its consolidated balance sheets but is not expected to significantly change the recognition, measurement or presentation of associated expense within the consolidated statements of income or cash flows.

In August 2016, the FASB issued ASU 2016-15, which amends the guidance in Accounting Standards Codification ("ASC") 230 on the classification of certain cash receipts and payments in the statement of cash flows. The primary purpose of the ASU is to reduce the diversity in practice that has resulted from the lack of consistency on this topic. The standard is effective for annual and interim periods beginning after December 15, 2017, and the Company will adopt it effective January 1, 2018. Significant classification modifications are not expected as a result of adoption.

XML

Property and Equipment

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment Disclosure

Property and Equipment

Property and equipment (in thousands):

	As of June 30, 2017			As of December 31, 2016
Flight equipment, including pre-delivery deposits	$	1,518,072		$	1,377,829
Computer hardware and software	113,321			101,850
Other property and equipment	88,001			81,786
Total property and equipment	1,719,394			1,561,465
Less accumulated depreciation and amortization	(506,623		)	(466,151		)
Property and equipment, net	$	1,212,771		$	1,095,314

XML

Long-Term Debt

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

Long-term debt (in thousands):

	As of June 30, 2017			As of December 31, 2016
Fixed-rate notes payable due through 2020	$	465,594		$	465,748
Variable-rate notes payable due through 2027	411,875			342,526
Total long-term debt, net of related costs	877,469			808,274
Less current maturities, net of related costs	116,387			86,226
Long-term debt, net of current maturities and related costs	$	761,082		$	722,048
Weighted average fixed-interest rate	5.41		%	5.41		%
Weighted average variable-interest rate	3.27		%	3.16		%

Maturities of long-term debt for the remainder of 2017 and for the next five years and thereafter, in the aggregate, are: remaining in 2017 - $45.8 million; 2018 - $154.4 million; 2019 - $530.0 million; 2020 - $64.5 million; 2021 - $37.2 million; and $45.6 million thereafter.

Secured Debt

In the first six months of 2017, the Company borrowed $134.5 million under loan agreements secured by nine Airbus A320 series aircraft. The notes bear interest at a floating rate based on LIBOR plus a weighted average margin of 1.68 percent and are payable in quarterly installments over five or ten years.

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Fair Value Measurements

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value, Measurement Inputs, Disclosure

Fair Value Measurements

The Company measures certain financial assets and liabilities at fair value on a recurring basis. Fair value is an exit price, representing the amount that would be received by selling an asset or paid to transfer a liability in an orderly transaction between market participants.

Accounting standards pertaining to fair value measurements establish a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets for identical assets or liabilities; Level 2, defined as inputs other than Level 1 inputs that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions.

The Company uses the market approach valuation technique to determine fair value for investment securities. The assets classified as Level 1 consist of money market funds for which original cost approximates fair value. The assets classified as Level 2 consist of commercial paper, municipal debt securities, federal agency debt securities, US Treasury Bonds, and corporate debt securities, which are valued using quoted market prices or alternative pricing sources including transactions involving identical or comparable assets and models utilizing market observable inputs. The Company has no investment securities classified as Level 3.

For those assets classified as Level 2 that are not in active markets, the Company obtains fair value from pricing sources using quoted market prices for identical or comparable instruments, and uses pricing models which include all significant observable inputs: maturity dates, issue dates, settlement dates, benchmark yields, reported trades, broker-dealer quotes, issue spreads, benchmark securities, bids, offers and other market related data. These inputs are observable or can be derived from, or corroborated by, observable market data for substantially the full term of the asset.

The fair value of the Company's derivative instrument is determined using standard valuation models. The significant inputs used in these models are readily available in public markets or can be derived from observable market transactions and therefore have been classified as Level 2. Inputs used in these standard valuation models for derivative instruments include the applicable exchange and interest rates.

Financial instruments measured at fair value on a recurring basis (in thousands):

	As of June 30, 2017						As of December 31, 2016
	Total		Level 1		Level 2		Total		Level 1		Level 2
Cash equivalents
Municipal debt securities	$	1,568	$	—	$	1,568	$	1,843	$	—	$	1,843
Money market funds	502		502		—		123		123		—
Federal agency debt securities	—		—		—		19,399		—		19,399
Total cash equivalents	2,070		502		1,568		21,365		123		21,242
Short-term
Municipal debt securities	143,273		—		143,273		78,826		—		78,826
Commercial paper	96,105		—		96,105		108,372		—		108,372
Corporate debt securities	69,897		—		69,897		76,570		—		76,570
Federal agency debt securities	10,840		—		10,840		3,895		—		3,895
US Treasury Bonds	3,002		—		3,002		1,606		—		1,606
Total short-term	323,117		—		323,117		269,269		—		269,269
Long-term
Corporate debt securities	106,134		—		106,134		25,048		—		25,048
Municipal debt securities	29,378		—		29,378		72,623		—		72,623
Federal agency debt securities	24,257		—		24,257		24,160		—		24,160
Derivative instruments	780		—		780		1,660		—		1,660
US Treasury Bonds	—		—		—		3,003		—		3,003
Total long-term	160,549		—		160,549		126,494		—		126,494
Total financial instruments	$	485,736	$	502	$	485,234	$	417,128	$	123	$	417,005

The fair value of the Company’s publicly held long-term debt is determined based on inputs that are readily available in public markets or can be derived from information available in publicly quoted markets; therefore, the Company has categorized its publicly held debt as Level 2. The remaining debt agreements are not publicly held. The Company has determined the estimated fair value of these notes to be Level 3, as certain inputs used to determine the fair value of these agreements are unobservable and, therefore, could be sensitive to changes in inputs. The Company utilizes the discounted cash flow method to estimate the fair value of Level 3 debt.

Carrying value and estimated fair value of long-term debt, including current maturities and without reduction for related costs (in thousands):

	As of June 30, 2017				As of December 31, 2016
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value		Hierarchy Level
Publicly held debt	$	451,750	$	469,820	$	452,179	$	468,005	2
Non-publicly held debt	430,631		402,628		360,999		340,866		3
Total long-term debt	$	882,381	$	872,448	$	813,178	$	808,871

Due to the short-term nature, carrying amounts of cash, cash equivalents, restricted cash, accounts receivable and accounts payable approximate fair value.

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Derivative Instruments

6 Months Ended

Jun. 30, 2017

Derivative Instruments [Abstract]

Derivative Instruments and Hedging Activities Disclosure

Derivative Instruments

The Company entered into a foreign currency swap in order to mitigate the foreign currency exchange rate risk associated with the forecasted lease revenue from 12 Airbus A320 series aircraft leased to a European carrier until 2018. The Company uses a cash flow hedge to minimize the variability in cash flows of assets, liabilities and forecasted transactions caused by fluctuations in foreign currency exchange rates. For the six months ended June 30, 2017, the net change in fair value recorded in accumulated other comprehensive income related to an unrealized loss on the hedge was $0.6 million compared to $0.3 million for the six months ended June 30, 2016.

At inception, the Company formally designated and documented this financial instrument as a hedge of a specific underlying exposure, the risk management objective, and the strategy for undertaking the hedge transaction. The Company also assessed whether the financial instrument used in the hedging transactions was effective at offsetting changes in either the fair values or cash flows of the related underlying exposures. This assessment is monitored on at least a quarterly basis, and the change in fair market value of any ineffective portion of a financial instrument would be immediately recognized into earnings. For each of the six months ended June 30, 2017 and June 30, 2016, the Company realized $0.5 million in gains from its cash flow hedge into Other revenue. As of June 30, 2017, the Company expects $0.5 million to be reclassified from Other comprehensive income into Other revenue within the next 12 months.

At June 30, 2017, the fair value of the Company's derivative instrument was $0.8 million compared to $1.7 million at December 31, 2016, and is reported in the Company's consolidated balance sheet within deposits and other assets. Refer to Note 4 - Fair Value Measurements for additional information related to the estimated fair value.

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Stockholders' Equity

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Stockholders' Equity

Shareholders’ Equity

The Company is authorized by the Board of Directors to acquire its stock through open market purchases under its share repurchase program. As repurchase authority is used, the Board of Directors has, to date, authorized additional expenditures for share repurchases.

Share repurchases consisted of the following during the periods indicated:

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Shares repurchased (not in thousands)	589,057		55,148		604,497		369,997
Average price per share	$	142.16	$	139.08	$	142.66	$	166.70
Total (in thousands)	$	83,740	$	7,670	$	86,240	$	61,679

During the six months ended June 30, 2017, the Company declared and paid recurring cash dividends of $1.40 per share, or $23.2 million.

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Earnings per Share

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Earnings per Share

Earnings per Share

Basic and diluted earnings per share are computed pursuant to the two-class method. Under this method, the Company attributes net income to two classes: common stock and unvested restricted stock. Unvested restricted stock awards granted to employees under the Company’s Long-Term Incentive Plan are considered participating securities as they receive non-forfeitable rights to cash dividends at the same rate as common stock.

Diluted net income per share is calculated using the more dilutive of the two methods. Under both methods, the exercise of employee stock options is assumed using the treasury stock method. The assumption of vesting of restricted stock, however, differs:

1. Assume vesting of restricted stock using the treasury stock method.

2. Assume unvested restricted stock awards are not vested, and allocate earnings to common shares and unvested restricted stock awards using the two-class method.

For the three and six months ended June 30, 2017, the second method, which assumes unvested awards are not vested, was used in the computation because it was more dilutive than the first method.

The following table sets forth the computation of net income per share, on a basic and diluted basis, for the periods indicated (share count and dollar amounts other than per-share amounts in table are in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Basic:
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Less net income allocated to participating securities	(780		)	(350		)	(1,461		)	(758		)
Net income attributable to common stock	$	47,695		$	60,497		$	88,646		$	132,069
Net income per share, basic	$	2.94		$	3.68		$	5.44		$	7.98
Weighted-average shares outstanding	16,198			16,420			16,290			16,549
Diluted:
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Less net income allocated to participating securities	(779		)	(350		)	(1,459		)	(757		)
Net income attributable to common stock	$	47,696		$	60,497		$	88,648		$	132,070
Net income per share, diluted	$	2.94		$	3.68		$	5.43		$	7.97
Weighted-average shares outstanding	16,198			16,420			16,290			16,549
Dilutive effect of stock options and restricted stock	71			36			92			42
Adjusted weighted-average shares outstanding under treasury stock method	16,269			16,456			16,382			16,591
Participating securities excluded under two-class method	(49		)	(14		)	(65		)	(17		)
Adjusted weighted-average shares outstanding under two-class method	16,220			16,442			16,317			16,574

For the three and six months ended June 30, 2017, anti-dilutive shares excluded from the calculation of earnings per share were 62,605 and 45,940 (shares not in thousands), respectively.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

As of June 30, 2017, the Company had firm commitments to purchase the following aircraft:

Aircraft Type	Number of Aircraft Under Contract
Airbus A319	4
Airbus A320	21

Future minimum fixed payments for the Company's commitments related to the acquisition of aircraft (including aircraft lease obligations), airport fees under use and lease agreements, and other operating lease obligations are as follows as of June 30, 2017 (in thousands):

	As of June 30, 2017
Remaining in 2017	$	262,010
2018	139,079
2019	112,040
2020	74,306
2021	33,047
Thereafter	230,593
Total commitments	$	851,075

Contingencies

The Company is subject to certain legal and administrative actions it considers routine to its business activities. The Company believes the ultimate outcome of any pending legal or administrative matters will not have a material adverse impact on its financial position, liquidity or results of operations.

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Related Party

6 Months Ended

Jun. 30, 2017

Related Party Transactions [Abstract]

Related Party Transactions Disclosure

Related Party Transactions

The Company previously entered into a lease agreement for approximately 70,000 square feet of office space in a building in which the Company’s Chairman and Chief Executive Officer ("CEO") and the Company's President owned minority interests as limited partners. The Company exercised its option to terminate the lease effective in May 2015 and paid $1.3 million in January 2016 in settlement of related litigation.

Entities owned or controlled by the Company's Chairman and CEO have been paid for the building of corporate training content. This approach to training focuses on concept mastery, recognizing that individuals learn at varying paces, through different styles, and is designed to ensure the trainee fully understands each module before moving on to more advanced training. During the six months ended June 30, 2017 and 2016, the Company made payments to these entities of $0.2 million and $1.4 million, respectively, and no further payments are expected.

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Subsequent Events - aircraft

6 Months Ended

Jun. 30, 2017

Jul. 01, 2017

Subsequent Event [Line Items]

Subsequent Events [Text Block]

Subsequent Events

In July 2017, the Company borrowed $68.0 million under loan agreements secured by two Airbus A320 series aircraft. The notes bear interest at a floating rate based on LIBOR plus an average margin of 1.50 percent and are payable in quarterly installments through July 2027.

Subsequent Event [Member]

Subsequent Event [Line Items]

Number Of Aircraft Committed To Purchase

2

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Summary of Significant Accounting Policies - (Policies)

6 Months Ended

Jun. 30, 2017

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited consolidated financial statements include the accounts of Allegiant Travel Company (the “Company”) and its majority-owned operating subsidiaries. The Company has no independent assets or operations, and all guarantees of the Company's publicly held debt are full and unconditional and joint and several. Any subsidiaries of the parent company other than the subsidiary guarantors are minor. All intercompany balances and transactions have been eliminated.

These unaudited consolidated financial statements reflect all normal recurring adjustments which management believes are necessary to present fairly the financial position, results of operations, and cash flows of the Company for the respective periods presented. Certain information and footnote disclosures normally included in the annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") have been omitted pursuant to the rules and regulations of the Securities and Exchange Commission for Form 10-Q. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements of the Company and notes thereto included in the annual report of the Company on Form 10-K for the year ended December 31, 2016, filed with the Securities and Exchange Commission.

The preparation of financial statements in conformity with U.S. 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 may differ from these estimates.

New Accounting Pronouncements

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board ("FASB") issued ASU 2014-09, "Revenue from Contracts with Customers (Topic 606)" intended to create a unified model to determine when and how revenue is recognized. Under this ASU and subsequently issued amendments, the core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration for which the entity expects to be entitled in exchange for those goods or services. Under the new standard, revenue related to certain air-related ancillary fees directly related to ticket revenue, such as seat fees and baggage fees, will no longer be considered distinct performance obligations separate from passenger travel and will be reclassified into scheduled service revenue. In addition, change fees previously recognized when incurred by the customer, will be deferred and recognized as revenue when air travel is provided and reclassified into scheduled service revenue.

The new standard is effective for annual and interim periods beginning after December 15, 2017, and the Company will adopt effective January 1, 2018. The Company continues to evaluate the impact on its financial statements of adopting this new accounting standard and believes that adoption will have little effect on earnings, although the classification of certain air-related ancillary fees, as described above, will change.

In February 2016, the FASB issued ASU 2016-02 related to leases. This standard will require leases with durations greater than twelve months to be recognized on the balance sheet as a lease liability and a corresponding right-of-use asset, and is effective for interim and annual reporting periods beginning after December 15, 2018 with early adoption permitted. The Company has not completed the assessment of this new standard. The Company believes adoption will have a significant impact on its consolidated balance sheets but is not expected to significantly change the recognition, measurement or presentation of associated expense within the consolidated statements of income or cash flows.

In August 2016, the FASB issued ASU 2016-15, which amends the guidance in Accounting Standards Codification ("ASC") 230 on the classification of certain cash receipts and payments in the statement of cash flows. The primary purpose of the ASU is to reduce the diversity in practice that has resulted from the lack of consistency on this topic. The standard is effective for annual and interim periods beginning after December 15, 2017, and the Company will adopt it effective January 1, 2018. Significant classification modifications are not expected as a result of adoption.

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Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Line Items]

Property, Plant and Equipment

Property and equipment (in thousands):

	As of June 30, 2017			As of December 31, 2016
Flight equipment, including pre-delivery deposits	$	1,518,072		$	1,377,829
Computer hardware and software	113,321			101,850
Other property and equipment	88,001			81,786
Total property and equipment	1,719,394			1,561,465
Less accumulated depreciation and amortization	(506,623		)	(466,151		)
Property and equipment, net	$	1,212,771		$	1,095,314

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Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2017

Debt Disclosure [Abstract]

Summary of Long-Term Debt

Long-term debt (in thousands):

	As of June 30, 2017			As of December 31, 2016
Fixed-rate notes payable due through 2020	$	465,594		$	465,748
Variable-rate notes payable due through 2027	411,875			342,526
Total long-term debt, net of related costs	877,469			808,274
Less current maturities, net of related costs	116,387			86,226
Long-term debt, net of current maturities and related costs	$	761,082		$	722,048
Weighted average fixed-interest rate	5.41		%	5.41		%
Weighted average variable-interest rate	3.27		%	3.16		%

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Long-Term Debt Schedule of Maturities of Long-Term Debt (Tables)

6 Months Ended

Jun. 30, 2017

Schedule of Maturities of Long-Term Debt [Abstract]

Schedule of Maturities of Long-term Debt

Maturities of long-term debt for the remainder of 2017 and for the next five years and thereafter, in the aggregate, are: remaining in 2017 - $45.8 million; 2018 - $154.4 million; 2019 - $530.0 million; 2020 - $64.5 million; 2021 - $37.2 million; and $45.6 million thereafter.

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Assets Measured at Fair Value On a Recurring Basis

Financial instruments measured at fair value on a recurring basis (in thousands):

	As of June 30, 2017						As of December 31, 2016
	Total		Level 1		Level 2		Total		Level 1		Level 2
Cash equivalents
Municipal debt securities	$	1,568	$	—	$	1,568	$	1,843	$	—	$	1,843
Money market funds	502		502		—		123		123		—
Federal agency debt securities	—		—		—		19,399		—		19,399
Total cash equivalents	2,070		502		1,568		21,365		123		21,242
Short-term
Municipal debt securities	143,273		—		143,273		78,826		—		78,826
Commercial paper	96,105		—		96,105		108,372		—		108,372
Corporate debt securities	69,897		—		69,897		76,570		—		76,570
Federal agency debt securities	10,840		—		10,840		3,895		—		3,895
US Treasury Bonds	3,002		—		3,002		1,606		—		1,606
Total short-term	323,117		—		323,117		269,269		—		269,269
Long-term
Corporate debt securities	106,134		—		106,134		25,048		—		25,048
Municipal debt securities	29,378		—		29,378		72,623		—		72,623
Federal agency debt securities	24,257		—		24,257		24,160		—		24,160
Derivative instruments	780		—		780		1,660		—		1,660
US Treasury Bonds	—		—		—		3,003		—		3,003
Total long-term	160,549		—		160,549		126,494		—		126,494
Total financial instruments	$	485,736	$	502	$	485,234	$	417,128	$	123	$	417,005

Fair Value, Liabilities Measured on Recurring Basis

Carrying value and estimated fair value of long-term debt, including current maturities and without reduction for related costs (in thousands):

	As of June 30, 2017				As of December 31, 2016
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value		Hierarchy Level
Publicly held debt	$	451,750	$	469,820	$	452,179	$	468,005	2
Non-publicly held debt	430,631		402,628		360,999		340,866		3
Total long-term debt	$	882,381	$	872,448	$	813,178	$	808,871

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Stockholders' Equity Repurchases (Tables)

6 Months Ended

Jun. 30, 2017

Equity, Class of Treasury Stock [Line Items]

Treasury Stock [Text Block]

Share repurchases consisted of the following during the periods indicated:

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Shares repurchased (not in thousands)	589,057		55,148		604,497		369,997
Average price per share	$	142.16	$	139.08	$	142.66	$	166.70
Total (in thousands)	$	83,740	$	7,670	$	86,240	$	61,679

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Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Computation of Net Income Per Share, Basic and Diluted

The following table sets forth the computation of net income per share, on a basic and diluted basis, for the periods indicated (share count and dollar amounts other than per-share amounts in table are in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Basic:
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Less net income allocated to participating securities	(780		)	(350		)	(1,461		)	(758		)
Net income attributable to common stock	$	47,695		$	60,497		$	88,646		$	132,069
Net income per share, basic	$	2.94		$	3.68		$	5.44		$	7.98
Weighted-average shares outstanding	16,198			16,420			16,290			16,549
Diluted:
Net income	$	48,475		$	60,847		$	90,107		$	132,827
Less net income allocated to participating securities	(779		)	(350		)	(1,459		)	(757		)
Net income attributable to common stock	$	47,696		$	60,497		$	88,648		$	132,070
Net income per share, diluted	$	2.94		$	3.68		$	5.43		$	7.97
Weighted-average shares outstanding	16,198			16,420			16,290			16,549
Dilutive effect of stock options and restricted stock	71			36			92			42
Adjusted weighted-average shares outstanding under treasury stock method	16,269			16,456			16,382			16,591
Participating securities excluded under two-class method	(49		)	(14		)	(65		)	(17		)
Adjusted weighted-average shares outstanding under two-class method	16,220			16,442			16,317			16,574

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Commitments and Contingencies Commitments to Purchase (Tables)

6 Months Ended

Jun. 30, 2017

Commitments to Purchase Aircraft [Abstract]

Long-term Purchase Commitment

As of June 30, 2017, the Company had firm commitments to purchase the following aircraft:

Aircraft Type	Number of Aircraft Under Contract
Airbus A319	4
Airbus A320	21

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Commitments and Contingencies Payments Related to Commitments to Purchase (Tables)

6 Months Ended

Jun. 30, 2017

Payments Related to Commitments to Purchase [Abstract]

Long-term Purchase Commitment [Table Text Block]

Future minimum fixed payments for the Company's commitments related to the acquisition of aircraft (including aircraft lease obligations), airport fees under use and lease agreements, and other operating lease obligations are as follows as of June 30, 2017 (in thousands):

	As of June 30, 2017
Remaining in 2017	$	262,010
2018	139,079
2019	112,040
2020	74,306
2021	33,047
Thereafter	230,593
Total commitments	$	851,075

Contingencies

The Company is subject to certain legal and administrative actions it considers routine to its business activities. The Company believes the ultimate outcome of any pending legal or administrative matters will not have a material adverse impact on its financial position, liquidity or results of operations.

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Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Flight equipment, including pre-delivery deposits	$ 1,518,072	$ 1,377,829
Computer Hardware and Software	113,321	101,850
Other property and equipment	88,001	81,786
Total property and equipment	1,719,394	1,561,465
Less accumulated depreciation and amortization	506,623	466,151
Property and equipment, net	$ 1,212,771	$ 1,095,314

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Long-Term Debt Long-Term Debt - Components of Long-Term Debt (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Notes Payable	$ 882,381	$ 813,178
Secured Long-term Debt, Noncurrent	877,469	808,274
Less current maturities	116,387	86,226
Long-term debt, net of current maturities and related costs	761,082	722,048
Fixed Rate Notes Payable Through 2020
Debt Instrument [Line Items]
Notes Payable	465,594	465,748
Variable Rate Notes Payable Through 2027 [Member]
Debt Instrument [Line Items]
Notes Payable	$ 411,875	$ 342,526

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Long-Term Debt (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Dec. 31, 2016
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	$ 45,823	$ 45,823
Long-term Debt, Maturities, Repayments of Principal in Year Five	37,232	37,232
Long-term Debt, Maturities, Repayments of Principal after Year Five	45,600	45,600
Debt Instrument, Face Amount	134,500	134,500
Secured Long-term Debt, Noncurrent	877,469	877,469	$ 808,274
Long-term Debt, Maturities, Repayments of Principal in Year Two	154,354	154,354
Long-term Debt, Maturities, Repayments of Principal in Year Three	529,986	529,986
Long-term Debt, Maturities, Repayments of Principal in Year Four	$ 64,474	$ 64,474
Debt Instrument, Basis Spread on Variable Rate		1.68%
Airbus A320 Aircraft Series [Member]
Debt Instrument, Collateral	12	9

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Long-Term Debt Schedule of Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	$ 45,823
Long-term Debt, Maturities, Repayments of Principal in Year Two	154,354
Long-term Debt, Maturities, Repayments of Principal in Year Three	529,986
Long-term Debt, Maturities, Repayments of Principal in Year Four	64,474
Long-term Debt, Maturities, Repayments of Principal in Year Five	37,232
Long-term Debt, Maturities, Repayments of Principal after Year Five	45,600
Long-term Debt, Fair Value	$ 877,469	$ 808,274

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Fair Value Measurements (Detail) - Fair Value Measurements at Reporting Date Using - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Measurements, Recurring
Available-for-sale Securities	$ 485,736	$ 417,128
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Available-for-sale Securities	502	123
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Available-for-sale Securities	485,234	417,005
Short-term Investments | Fair Value, Measurements, Recurring
Available-for-sale Securities	323,117	269,269
Short-term Investments | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Short-term Investments | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Available-for-sale Securities	323,117	269,269
Short-term Investments | Fair Value, Measurements, Recurring | Commercial paper
Available-for-sale Securities	96,105	108,372
Short-term Investments | Fair Value, Measurements, Recurring | Commercial paper | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Short-term Investments | Fair Value, Measurements, Recurring | Commercial paper | Fair Value, Inputs, Level 2
Available-for-sale Securities	96,105	108,372
Short-term Investments | Fair Value, Measurements, Recurring | Federal agency debt securities
Available-for-sale Securities	10,840	3,895
Short-term Investments | Fair Value, Measurements, Recurring | Federal agency debt securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Short-term Investments | Fair Value, Measurements, Recurring | Federal agency debt securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	10,840	3,895
Short-term Investments | Fair Value, Measurements, Recurring | Municipal debt securities
Available-for-sale Securities	143,273	78,826
Short-term Investments | Fair Value, Measurements, Recurring | Municipal debt securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Short-term Investments | Fair Value, Measurements, Recurring | Municipal debt securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	143,273	78,826
Short-term Investments | Fair Value, Measurements, Recurring | Corporate debt securities
Available-for-sale Securities	69,897	76,570
Short-term Investments | Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Short-term Investments | Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	69,897	76,570
Short-term Investments | Fair Value, Measurements, Recurring | US Treasury Securities
Available-for-sale Securities	3,002	1,606
Short-term Investments | Fair Value, Measurements, Recurring | US Treasury Securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Short-term Investments | Fair Value, Measurements, Recurring | US Treasury Securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	3,002	1,606
Long Term Investments | Municipal debt securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Long Term Investments | Municipal debt securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	29,378	72,623
Long Term Investments | Fair Value, Measurements, Recurring
Available-for-sale Securities	160,549	126,494
Long Term Investments | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Long Term Investments | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Available-for-sale Securities	160,549	126,494
Long Term Investments | Fair Value, Measurements, Recurring | Federal agency debt securities
Available-for-sale Securities	24,257	24,160
Long Term Investments | Fair Value, Measurements, Recurring | Federal agency debt securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Long Term Investments | Fair Value, Measurements, Recurring | Federal agency debt securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	24,257	24,160
Long Term Investments | Fair Value, Measurements, Recurring | Municipal debt securities
Available-for-sale Securities	29,378	72,623
Long Term Investments | Fair Value, Measurements, Recurring | Corporate debt securities
Available-for-sale Securities	106,134	25,048
Long Term Investments | Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Long Term Investments | Fair Value, Measurements, Recurring | Corporate debt securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	106,134	25,048
Long Term Investments | Fair Value, Measurements, Recurring | US Treasury Securities
Available-for-sale Securities	0	3,003
Long Term Investments | Fair Value, Measurements, Recurring | US Treasury Securities | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Long Term Investments | Fair Value, Measurements, Recurring | US Treasury Securities | Fair Value, Inputs, Level 2
Available-for-sale Securities	0	3,003
Long Term Investments | Fair Value, Measurements, Recurring | Derivative Financial Instruments, Assets
Available-for-sale Securities	1,000	2,000
Long Term Investments | Fair Value, Measurements, Recurring | Derivative Financial Instruments, Assets | Fair Value, Inputs, Level 1
Available-for-sale Securities	0	0
Long Term Investments | Fair Value, Measurements, Recurring | Derivative Financial Instruments, Assets | Fair Value, Inputs, Level 2
Available-for-sale Securities	780	1,660
Cash Equivalents [Member] | Fair Value, Measurements, Recurring
Cash Equivalents	2,070	21,365
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1
Cash Equivalents	502	123
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Cash Equivalents	1,568	21,242
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | US Treasury Bonds
Cash Equivalents	502	123
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | US Treasury Bonds | Fair Value, Inputs, Level 1
Cash Equivalents	502	123
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | US Treasury Bonds | Fair Value, Inputs, Level 2
Cash Equivalents	0	0
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Federal agency debt securities
Cash Equivalents	0	19,399
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Federal agency debt securities | Fair Value, Inputs, Level 1
Cash Equivalents	0	0
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Federal agency debt securities | Fair Value, Inputs, Level 2
Cash Equivalents	0	19,399
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Municipal debt securities
Cash Equivalents	1,568	1,843
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Municipal debt securities | Fair Value, Inputs, Level 1
Cash Equivalents	0	0
Cash Equivalents [Member] | Fair Value, Measurements, Recurring | Municipal debt securities | Fair Value, Inputs, Level 2
Cash Equivalents	$ 1,568	$ 1,843

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Fair Value Measurements Estimated Fair Value of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Long-term Debt, Noncurrent	$ 877,469	$ 808,274
Notes Payable	882,381	813,178
Fair Value, Measurements, Recurring
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Long-term Debt, Noncurrent	872,448	808,871
Publicly Held Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Long-term Debt, Noncurrent	451,750	452,179
Publicly Held Debt | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Long-term Debt, Noncurrent	469,820	468,005
Non-Publicly Held Debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Long-term Debt, Noncurrent	430,631	360,999
Non-Publicly Held Debt | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Long-term Debt, Noncurrent	$ 402,628	$ 340,866

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Derivative Instruments Derivative Instruments - Textuals (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ (341)	$ 6	$ (556)	$ (325)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax	$ 240	$ 245	529	$ 510
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			$ 0
Airbus A320 Aircraft Series
Derivative [Line Items]
Debt Instrument, Collateral	12		9

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Stockholders' Equity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Stock Repurchased During Period, Shares	589,057	55,148	604,497	369,997
Treasury Stock Acquired, Average Cost Per Share	$ 142.16	$ 139.08	$ 142.66	$ 166.70
Stock Repurchased During Period, Value	$ 83,740	$ 7,670	$ 86,240	$ 61,679
Dividends			$ 23,204
Common Stock, Dividends, Per Share, Cash Paid			$ 1.40

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Earnings per Share (Detail) - Earnings Per Share - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	62,605		45,940
Basic:
Net income attributable to Allegiant Travel Company (in Dollars)	$ 48,475	$ 60,847	$ 90,107	$ 132,827
Less: Net income allocated to participating securities (in Dollars)	(780)	(350)	(1,461)	(758)
Net income attributable to common stock (in Dollars)	$ 47,695	$ 60,497	$ 88,646	$ 132,069
Net income per share, basic (in Dollars per share)	$ 2.94	$ 3.68	$ 5.44	$ 7.98
Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted	$ (779)	$ (350)	$ (1,459)	$ (757)
Net Income (Loss) Available to Common Stockholders, Diluted	$ 47,696	$ 60,497	$ 88,648	$ 132,070
Net income per share, diluted (in Dollars per share)	$ 2.94	$ 3.68	$ 5.43	$ 7.97
Weighted-average shares outstanding	16,198,000	16,420,000	16,290,000	16,549,000
Dilutive effect of stock options, restricted stock and stock-settled stock appreciation rights	71,000	36,000	92,000	42,000
Adjusted weighted-average shares outstanding under treasury stock method	16,269,000	16,456,000	16,382,000	16,591,000
Participating securities excluded under two-class method	(49,000)	(14,000)	(65,000)	(17,000)
Two-Class Method, Weighted Average Number of Shares Outstanding, Diluted	16,220,000	16,442,000	16,317,000	16,574,000

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Commitments and Contingencies (Detail) $ in Thousands	Jun. 30, 2017 USD ($) aircraft
Long-term Purchase Commitment [Line Items]
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	$ 262,010
Unrecorded Unconditional Purchase Obligation, Due within Two Years	139,079
Unrecorded Unconditional Purchase Obligation, Due within Three Years	112,040
Unrecorded Unconditional Purchase Obligation, Due within Four Years	74,306
Unrecorded Unconditional Purchase Obligation, Due within Five Years	33,047
Unrecorded Unconditional Purchase Obligation, Due after Five Years	230,593
Unrecorded Unconditional Purchase Obligation	$ 851,075
Airbus A319
Long-term Purchase Commitment [Line Items]
Number Of Aircraft Committed To Purchase | aircraft	4
Airbus A320
Long-term Purchase Commitment [Line Items]
Number Of Aircraft Committed To Purchase | aircraft	21

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Commitments and Contingencies Payments Related to Commitments to Purchase (Details) $ in Thousands	Jun. 30, 2017 USD ($)
Payments Related to Commitments to Purchase [Abstract]
Unrecorded Unconditional Purchase Obligation, Due in Remainder of Fiscal Year	$ 262,010
Unrecorded Unconditional Purchase Obligation, Due within Two Years	139,079
Unrecorded Unconditional Purchase Obligation, Due within Three Years	112,040
Unrecorded Unconditional Purchase Obligation, Due within Four Years	74,306
Unrecorded Unconditional Purchase Obligation, Due within Five Years	33,047
Unrecorded Unconditional Purchase Obligation, Due after Five Years	230,593
Unrecorded Unconditional Purchase Obligation	$ 851,075

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Related Party (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction		$ 200	$ 1,400
Lease Termination
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 1,300
Building 1
Related Party Transaction [Line Items]
Related Party Transaction, Description of Transaction	70000

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Subsequent Events Subsequent Events (Details) $ in Thousands		6 Months Ended
	Jul. 31, 2017	Jun. 30, 2017 USD ($)	Jul. 01, 2017 USD ($) aircraft	Dec. 31, 2016 USD ($)
Subsequent Event [Line Items]
Secured Long-term Debt, Noncurrent		$ 877,469		$ 808,274
Debt Instrument, Basis Spread on Variable Rate		1.68%
Subsequent Event [Member]
Subsequent Event [Line Items]
Number Of Aircraft Committed To Purchase | aircraft			2
Debt Instrument, Basis Spread on Variable Rate	1.50%
Due September 2027 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Secured Long-term Debt, Noncurrent			$ 68,000