8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 5, 2019

____________________

SPIRIT AIRLINES, INC.

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation)

001-35186 (Commission File Number) 38-1747023 (IRS Employer Identification Number)

2800 Executive Way

Miramar, Florida 33025

(Address of principal executive offices, including Zip Code)

(954) 447-7920

(Registrant's telephone number, including area code)

____________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[]	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
[]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02. Results of Operations and Financial Condition.

On February 5, 2019, Spirit Airlines, Inc. (the “Company” or “Spirit”) issued a press release announcing its unaudited financial results for the fourth quarter and full year 2018. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Non-GAAP financial measures that reflect adjustments from historical financial data prepared under GAAP, including adjustments for special items, are included in the press release as supplemental disclosures because the Company believes they are useful indicators of the Company's operating performance for comparative purposes. These non-GAAP financial measures are well recognized performance measurements in the airline industry that are frequently used by investors, securities analysts and other interested parties in comparing the operating performance of companies in the airline industry. The non-GAAP financial measures provided have limitations as an analytical tool. Because of these limitations, non-GAAP financial measures should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP. The Company has also provided in the press release reconciliations of these non-GAAP financial measures to the appropriate GAAP financial measures.

Item 7.01 Regulation FD Disclosure.

The information in this report furnished pursuant to Item 7.01 shall not be deemed “filed” for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended (the “Securities Act”), if such subsequent filing specifically references the information furnished pursuant to Item 7.01 of this report.

On February 5, 2019, the Company provided an update to investors regarding the Company's first quarter and full year 2019 guidance; a copy of which is attached hereto as Exhibit 99.2 and is incorporated herein by reference. The guidance provided therein is only an estimate of what the Company believes is realizable as of the date of this investor update. Actual results may vary from the guidance and the variations may be material. The Company undertakes no intent or obligation to publicly update or revise any of these projections, whether as a result of new information, future events or otherwise, except as required by law.

Item 9.01. Financial Statements and Exhibits.

(d)Exhibits

The following is furnished as an exhibit to this report and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act:

Exhibit No.	Description
99.1	Press Release regarding fourth quarter and full year 2018 financial results.
99.2	Investor Update regarding first quarter and full year 2019 guidance.

SIGNATURES

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

Date: February 5, 2019 SPIRIT AIRLINES, INC.

By: /s/ Thomas Canfield

Name: Thomas Canfield

Title: Senior Vice President and General Counsel

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release regarding fourth quarter and full year 2018 financial results.
99.2	Investor Update regarding first quarter and full year 2019 guidance.

EX-99.1

EXHIBIT 99.1

Spirit Airlines Reports Fourth Quarter and Full Year 2018 Results

MIRAMAR, Fla., February 5, 2019 - Spirit Airlines, Inc. (NYSE: SAVE) today reported fourthquarter and full year 2018 financial results.

• GAAP net income for the fourth quarter 2018 was $91.9 million ($1.34 per diluted share), or $94.7 million ($1.38 per diluted share)¹ excluding special items.

• GAAP net income for the full year 2018 was $155.7 million ($2.28 per diluted share), or $300.9 million ($4.40 per diluted share)¹ excluding special items.

• GAAP operating margin for the fourth quarter2018 was 15.8 percent, or 16.2 percent excluding special items¹. GAAP operating margin for the full year 2018 was 10.6 percent, or 13.5 percent excluding special items¹.

• Spirit ended 2018 with unrestricted cash, cash equivalents, and short-term investments of $1.1 billion.

“Our robust fourth quarter profit closes out a very successful year for Spirit. Despite cost pressures from significantly higher fuel and pilot wage rates, Spirit produced strong earnings growth for 2018, made great strides in improving our customer satisfaction metrics and delivered excellent operational performance. As measured by the Department of Transportation, for the full year 2018, we achieved a record on-time performance of 81.1 percent and a completion factor of 99.1 percent.  Based on preliminary estimates, these results earned us the rank of fourth among the reporting marketing carriers in both these categories.  In 2018, our initiatives to drive both passenger and ancillary revenue produced healthy top-line revenue growth, and we expect them to drive additional benefit in 2019. Our revenue initiatives, together with our continued strong cost and operational performance position us well to succeed in the year ahead,” said Ted Christie, Spirit’s President and Chief Executive Officer. 

Revenue Performance

For the fourth quarter 2018, Spirit's total operating revenue was $862.8 million, an increase of 29.5 percent compared to the fourth quarter 2017. Total operating revenue per available seat mile ("TRASM") for the fourthquarter2018increased11.4 percent compared to the same period last year. During the fourth quarter 2018, the Company's results continued to benefit from its improved yield management processes, non-ticket revenue initiatives, strategic network re-orientation, and a strong operating environment.

On a per passenger flight segment basis, total revenue for the fourth quarter 2018 increased 7.3 percent year over year to $117.15 with fare revenue per passenger flight segment increasing 9.3 percent to $60.45 and non-ticket revenue per passenger flight segment increasing 5.2 percent to $56.70².

Cost Performance

For the fourth quarter2018, total GAAP operating expenses, increased26.4 percent year over year to $726.7 million. Adjusted operating expenses for the fourth quarter 2018 increased 25.2 percent year over year to $723.4 million³. These changes were primarily driven by increases in salaries, wages and benefits, fuel rates, and depreciation and amortization.

1

Aircraft fuel expense increased in the fourth quarter 2018 by 31.1 percent year over year, due to a 14.7 percent increase in the cost of fuel per gallon and a 14.4 percent increase in fuel gallons consumed.

Spirit reported fourth quarter 2018 cost per available seat mile ("ASM"), excluding special items and fuel (“Adjusted CASM ex-fuel”), of 5.49 cents³, an increase of 5.6 percent compared to the same period last year, primarily due to higher salaries, wages and benefits per ASM largely driven by rate increases pilots received in connection with the new collective bargaining agreement that became effective March 1, 2018. This increase was partially offset by lower aircraft rent per ASM.

“I want to congratulate and thank our entire team for delivering industry-leading cost performance during 2018.  Despite absorbing materially higher pilot rates in connection with our new pilot agreement ratified in the first quarter 2018, our adjusted CASM ex-fuel for the full year 2018 was down 3.8 percent year over year.  We remain confident that over the next five years our relative cost performance versus our primary competitors will continue to increase, further strengthening our competitive position,” said Scott Haralson, Spirit's Chief Financial Officer.

Fleet

Spirit took delivery of seven new aircraft (five new A320ceo and two A320neo) during the fourth quarter 2018, ending the year with 128 aircraft in its fleet.

New Routes

Orlando - Aguadilla, Puerto Rico (10/04/2018)

Orlando - Guatemala City, Guatemala (10/04/2018)

Orlando - Panama City, Panama (10/04/2018)

Orlando - Santo Domingo, Dominican Republic (10/04/2018)

Orlando - San Jose, Costa Rica (10/05/2018)

Orlando - San Pedro Sula, Honduras (10/05/2018)

Orlando - San Salvador, El Salvador (10/06/2018)

Fort Lauderdale - Kansas City (11/08/2018) *

Newark - Santo Domingo (11/08/2018) *

Orlando - Bogotá, Colombia (11/08/2018)

Orlando - St. Thomas, USVI (11/08/2018)

Orlando - Medellín, Colombia (11/09/2018)

Orlando - Cartagena, Colombia (11/10/2018)

Orlando - Myrtle Beach (11/10/2018)

Philadelphia - Fort Myers (12/13/2018) *

Philadelphia - Tampa (12/14/2018) *

Cali, Colombia - Fort Lauderdale (12/20/2018)

Jacksonville - Detroit (12/20/2018)

Jacksonville - Chicago (12/20/2018)

Detroit - Montego Bay (12/20/2018)

Detroit - West Palm Beach (12/21/2018) *

* Indicates seasonal service

Full Year 2018 Highlights

• As measured by the Department of Transportation, achieved a record high on-time performance ranking fourth in on-time arrivals among the reportable carriers based on preliminary results.

• Named "Value Airline of the Year" by Air Transport World, named the " Most Improved Airline of the Year" by the Airline Passenger Experience Association, and ranked as the country's most on-time Low-Cost airline by FlightGlobal.

• Launched a major International expansion from Orlando International Airport to 12 destinations in Latin America and the Caribbean.

2

• Launched service to the following new destinations: Columbus; Richmond; Guayaquil, Ecuador; Cap-Haïtien, Haiti; St. Croix, U.S. Virgin Islands; Greensboro; Asheville; Cali, Colombia; and Jacksonville.

• Ratified a new five-year agreement with its pilots, represented by the Air Line Pilots Association.

• Ratified a new five-year agreement with its dispatchers, represented by the Professional Airline Flight Control Association.

Conference Call/Webcast Detail

Spirit will conduct a conference call to discuss these results tomorrow, February 6, 2018, at 9:30 a.m. ET. A live audio webcast of the conference call will be available to the public on a listen-only basis at http://ir.spirit.com. An archive of the webcast will be available under Webcasts & Presentations for 60 days.

About Spirit Airlines:

Spirit Airlines (NYSE: SAVE) is committed to delivering the best value in the sky while providing an exceptional Guest experience.  We are the leader in providing customizable travel options starting with an unbundled fare.  This allows every Guest to pay only for the options they choose - like bags, seat assignments, and refreshments - something we call Á La Smarte.  We make it possible for our Guests to venture further, travel more often, and discover more than ever before.  Our Fit Fleet® is one of the youngest and most fuel-efficient in the U.S.  We operate more than 600 daily flights to 72 destinations in the U.S., Latin America, and the Caribbean, and are dedicated to giving back and improving the communities we serve.  Come save with us at www.spirit.com.  At Spirit Airlines, we go.  We go for you.

Investors are encouraged to read the Company's periodic and current reports filed with or furnished to the Securities and Exchange Commission, including its Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K, for additional information regarding the Company.

End Notes

(1) See "Reconciliation of Adjusted Net Income, Adjusted Pre-tax Income, and Adjusted Operating Income to GAAP Net Income" table below for more details.

(2) See "Calculation of Total Non-ticket Revenue per Passenger Segment" table below for more details.

(3) See "Reconciliation of Adjusted Operating Expense to GAAP Operating Expense" table below for more details.

Forward-Looking Statements

Statements in this release and certain oral statements made from time to time by representatives of the Company contain various forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), which are subject to the “safe harbor” created by those sections. Forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to our management. All statements other than statements of historical facts are “forward-looking statements” for purposes of these provisions. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “project,” “predict,” “potential,” and similar expressions intended to identify forward-looking statements. Such forward-looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements. Furthermore, such forward-looking statements speak only as of the date of this release. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements. Risks or uncertainties (i) that are not currently known to us, (ii) that we currently deem to be immaterial, or (iii) that could apply to any company, could also materially adversely affect our business, financial condition, or future results. References in this report to “Spirit,” “we,” “us,” “our,” or the “Company” shall mean Spirit Airlines, Inc., unless the context indicates otherwise. Additional information concerning certain factors is contained in the Company's Securities and Exchange Commission filings,

3

including but not limited to the Company's Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K.

4

SPIRIT AIRLINES, INC.

Condensed Statement of Operations

(unaudited, in thousands, except per-share data)

	Three Months Ended								Year Ended
	December 31,						Percent		December 31,						Percent
	2018			2017			Change		2018			2017			Change
Operating revenues:
Passenger	$	846,568		$	650,647		30.1		$	3,260,015		$	2,572,887		26.7
Other	16,227			15,535			4.5		63,019			70,665			(10.8	)
Total operating revenues	862,795			666,182			29.5		3,323,034			2,643,552			25.7
Operating expenses:
Aircraft fuel	229,680			175,205			31.1		939,324			615,581			52.6
Salaries, wages and benefits	191,740			136,815			40.1		719,635			527,959			36.3
Landing fees and other rents	51,903			46,117			12.5		214,677			180,655			18.8
Aircraft rent	43,023			42,820			0.5		177,641			205,852			(13.7	)
Depreciation and amortization	47,963			36,472			31.5		176,727			140,152			26.1
Distribution	33,505			28,170			18.9		137,001			113,472			20.7
Maintenance, materials and repairs	29,937			28,966			3.4		129,078			110,439			16.9
Special charges	265			—			nm		88,921			12,629			nm
Loss on disposal of assets	3,019			1,054			nm		9,580			4,168			nm
Other operating	95,695			79,267			20.7		379,536			347,820			9.1
Total operating expenses	726,730			574,886			26.4		2,972,120			2,258,727			31.6
Operating income	136,065			91,296			49.0		350,914			384,825			(8.8	)
Other (income) expense:
Interest expense	23,505			16,065			46.3		83,777			57,302			46.2
Capitalized interest	(2,636		)	(3,668		)	(28.1	)	(9,841		)	(13,793		)	(28.7	)
Interest income	(5,835		)	(2,990		)	95.2		(19,107		)	(8,736		)	118.7
Other expense	129			145			nm		752			366			nm
Special charges, non-operating	—			—			nm		90,357			—			nm
Total other (income) expense	15,163			9,552			58.7		145,938			35,139			315.3
Income before income taxes	120,902			81,744			47.9		204,976			349,686			(41.4	)
Provision (benefit) for income taxes	28,965			(165,231		)	(117.5	)	49,227			(65,836		)	(174.8	)
Net income	$	91,937		$	246,975		(62.8	)	$	155,749		$	415,522		(62.5	)
Basic earnings per share	$	1.35		$	3.59		(62.4	)	$	2.28		$	6.00		(62.0	)
Diluted earnings per share	$	1.34		$	3.58		(62.6	)	$	2.28		$	5.99		(61.9	)
Weighted average shares, basic	68,267			68,799			(0.8	)	68,249			69,221			(1.4	)
Weighted average shares, diluted	68,687			68,901			(0.3	)	68,431			69,377			(1.4	)

Prior period amounts have been reclassified to reflect the adoption of ASU No. 2014-09, " Revenue from Contracts with

Customers," completed in the first quarter of 2018.

5

SPIRIT AIRLINES, INC.

Condensed Statements of Comprehensive Income (Loss)

(unaudited, in thousands)

	Three Months Ended						Year Ended
	December 31,						December 31,
	2018			2017			2018		2017
Net income	$	91,937		$	246,975		$	155,749	$	415,522
Unrealized gain (loss) on short-term investment securities, net of deferred taxes of $22, ($34), $44 and ($41)	(40		)	(71		)	30		(82		)
Interest rate derivative loss reclassified into earnings, net of taxes of $9, $279, $75 and $372	68			(196		)	241		(37		)
Other comprehensive income (loss)	$	28		$	(267	)	$	271	$	(119	)
Comprehensive income	$	91,965		$	246,708		$	156,020	$	415,403

Prior period amounts have been reclassified to reflect the adoption of ASU No. 2014-09, " Revenue from Contracts with Customers," completed in the first quarter of 2018.

6

SPIRIT AIRLINES, INC.

Condensed Balance Sheets

(unaudited, in thousands)

	December 31,			December 31,
	2018			2017
Assets
Current assets:
Cash and cash equivalents	$	1,004,733		$	800,849
Short-term investment securities	102,789			100,937
Accounts receivable, net	47,660			49,323
Aircraft maintenance deposits, net	106,901			175,615
Income tax receivable	—			69,844
Prepaid expenses and other current assets	83,383			85,542
Total current assets	1,345,466			1,282,110
Property and equipment:
Flight equipment	3,257,215			2,291,110
Ground property and equipment	191,661			155,166
Less accumulated depreciation	(332,864		)	(207,808		)
	3,116,012			2,238,468
Pre-delivery deposits on flight equipment	236,775			253,687
Long-term aircraft maintenance deposits	138,738			150,617
Deferred heavy maintenance, net	249,010			99,915
Other long-term assets	79,456			121,003
Total assets	$	5,165,457		$	4,145,800
Liabilities and shareholders’ equity
Current liabilities:
Accounts payable	$	39,320		$	22,822
Air traffic liability	291,981			263,711
Current maturities of long-term debt and capital leases	163,557			115,430
Other current liabilities	339,677			262,370
Total current liabilities	834,535			664,333
Long-term debt and capital leases, less current maturities	2,024,774			1,387,498
Deferred income taxes	355,141			308,814
Deferred gains and other long-term liabilities	22,503			22,581
Shareholders’ equity:
Common stock	7			7
Additional paid-in-capital	371,225			360,153
Treasury stock, at cost	(67,016		)	(65,854		)
Retained earnings	1,625,481			1,469,732
Accumulated other comprehensive income (loss)	(1,193		)	(1,464		)
Total shareholders’ equity	1,928,504			1,762,574
Total liabilities and shareholders’ equity	$	5,165,457		$	4,145,800

Prior period amounts have been reclassified to reflect the adoption of ASU No. 2014-09, " Revenue from Contracts with Customers," completed in the first quarter of 2018.

7

SPIRIT AIRLINES, INC.

Condensed Statement of Cash Flows

(unaudited, in thousands)

	Year Ended December 31,
	2018			2017
Operating activities:
Net income	$	155,749		$	415,522
Adjustments to reconcile net income to net cash provided by operations:
Losses reclassified from other comprehensive income	315			335
Stock-based compensation	11,021			8,522
Allowance for doubtful accounts (recoveries)	(11		)	(53		)
Amortization of deferred gains and losses and debt issuance costs	8,819			7,944
Depreciation and amortization	176,727			140,152
Deferred income tax expense (benefit)	46,303			(492		)
Loss on disposal of assets	9,580			4,168
Lease termination costs	—			12,629
Special charges, non-operating	90,357			—
Changes in operating assets and liabilities:
Accounts receivable	1,674			(8,134		)
Aircraft maintenance deposits, net	14,019			(37,930		)
Long-term deposits and other assets	(4,803		)	(50,951		)
Deferred heavy maintenance, net	(190,381		)	(78,237		)
Income tax receivable	69,844			(69,844		)
Accounts payable	15,317			6,030
Air traffic liability	28,270			43,527
Other liabilities	74,038			31,672
Other	(375		)	380
Net cash provided by operating activities	506,463			425,240
Investing activities:
Purchase of available-for-sale investment securities	(124,430		)	(107,246		)
Proceeds from the maturity of available-for-sale investment securities	122,947			105,906
Proceeds from sale of property and equipment	11,400			—
Pre-delivery deposits on flight equipment, net of refunds	(177,424		)	(149,477		)
Capitalized interest	(8,729		)	(12,305		)
Assets constructed for others	(501		)	—
Purchase of property and equipment	(606,971		)	(628,881		)
Net cash used in investing activities	(783,708		)	(792,003		)
Financing activities:
Proceeds from issuance of long-term debt	832,099			629,725
Proceeds from stock options exercised	51			45
Payments on debt obligations	(137,275		)	(102,313		)
Payments on capital lease obligations	(205,720		)	(425		)
Reimbursement for assets under construction for others	501			—
Repurchase of common stock	(1,162		)	(46,580		)
Debt issuance costs	(7,365		)	(13,740		)
Net cash provided by financing activities	481,129			466,712
Net increase (decrease) in cash and cash equivalents	203,884			99,949
Cash and cash equivalents at beginning of period	800,849			700,900
Cash and cash equivalents at end of period	$	1,004,733		$	800,849
Supplemental disclosures
Cash payments for:
Interest, net of capitalized interest	$	65,123		$	37,902
Income taxes paid, net of refunds	$	(73,489	)	$	5,826
Non-cash transactions:
Capital expenditures funded by capital lease borrowings	$	(987	)	$	(1,370	)

Prior period amounts have been reclassified to reflect the adoption of ASU No. 2014-09, " Revenue from Contracts with Customers," completed in the first quarter of 2018.

8

SPIRIT AIRLINES, INC.

Selected Operating Statistics

(unaudited)

	Three Months Ended December 31,
Operating Statistics	2018	2017	Change
Available seat miles (ASMs) (thousands)	8,998,928	7,741,030	16.2	%
Revenue passenger miles (RPMs) (thousands)	7,606,962	6,319,924	20.4	%
Load factor (%)	84.5	81.6	2.9	pts
Passenger flight segments (thousands)	7,365	6,100	20.7	%
Block hours	130,309	112,695	15.6	%
Departures	48,073	41,957	14.6	%
Total operating revenue per ASM (TRASM) (cents)	9.59	8.61	11.4	%
Average yield (cents)	11.34	10.54	7.6	%
Fare revenue per passenger flight segment ($)	60.45	55.30	9.3	%
Non-ticket revenue per passenger flight segment ($)	56.70	53.91	5.2	%
Total revenue per passenger flight segment ($)	117.15	109.21	7.3	%
CASM (cents)	8.08	7.43	8.7	%
Adjusted CASM (cents) (1)	8.04	7.47	7.6	%
Adjusted CASM ex-fuel (cents) (2)	5.49	5.20	5.6	%
Fuel gallons consumed (thousands)	101,595	88,838	14.4	%
Average economic fuel cost per gallon ($)	2.26	1.97	14.7	%
Aircraft at end of period	128	112	14.3	%
Average daily aircraft utilization (hours)	11.5	11.3	1.8	%
Average stage length (miles)	1,019	1,023	(0.4	)%

	Year Ended December 31,
Operating Statistics	2018	2017	Change
Available seat miles (ASMs) (thousands)	36,502,982	29,592,819	23.4	%
Revenue passenger miles (RPMs) (thousands)	30,623,379	24,605,512	24.5	%
Load factor (%)	83.9	83.1	0.8	pts
Passenger flight segments (thousands)	29,312	24,183	21.2	%
Block hours	526,343	438,728	20.0	%
Departures	192,845	165,449	16.6	%
Total operating revenue per ASM (TRASM) (cents)	9.10	8.93	1.9	%
Average yield (cents)	10.85	10.74	1.0	%
Fare revenue per passenger flight segment ($)	58.14	56.38	3.1	%
Non-ticket revenue per passenger flight segment ($)	55.23	52.94	4.3	%
Total revenue per passenger flight segment ($)	113.37	109.32	3.7	%
CASM (cents)	8.14	7.63	6.7	%
Adjusted CASM (cents) (1)	7.87	7.59	3.7	%
Adjusted CASM ex-fuel (cents) (2)	5.30	5.51	(3.8	)%
Fuel gallons consumed (thousands)	412,256	343,709	19.9	%
Average economic fuel cost per gallon ($)	2.28	1.79	27.4	%
Average daily aircraft utilization (hours)	12.1	11.6	4.3	%
Average stage length (miles)	1,032	999	3.3	%

(1) Excludes operating special items.

(2) Excludes economic fuel expense and operating special items.

9

The Company is providing a reconciliation of GAAP financial information to non-GAAP financial information as it believes that non-GAAP financial measures provide management and investors the ability to measure the performance of the Company on a consistent basis. These non-GAAP financial measures have limitations as analytical tools. Because of these limitations, determinations of the Company's operating performance excluding unrealized gains and losses or special items should not be considered in isolation or as a substitute for performance measures calculated in accordance with GAAP.

Calculation of Total Non-Ticket Revenue per Passenger Segment

(unaudited)

	Three Months Ended December 31,				Year Ended December 31,
(in thousands, except per segment data)	2018		2017		2018		2017
Operating revenues
Fare	$	445,203	$	337,324	$	1,704,107	$	1,363,395
Non-fare	401,365		313,323		1,555,908		1,209,492
Total passenger revenues	846,568		650,647		3,260,015		2,572,887
Other revenues	16,227		15,535		63,019		70,665
Total operating revenues	$	862,795	$	666,182	$	3,323,034	$	2,643,552
Non-ticket revenues (1)	$	417,592	$	328,858	$	1,618,927	$	1,280,157
Passenger segments	7,365		6,100		29,312		24,183
Non-ticket revenue per passenger segment ($)	$	56.70	$	53.91	$	55.23	$	52.94

(1) Non-ticket revenues equals the sum of non-fare passenger revenues and other revenues.

Special Items

(unaudited)

	Three Months Ended					Year Ended
	December 31,					December 31,
(in thousands)	2018		2017			2018		2017
Operating special items include the following:
Supplemental rent credit (1)	—		(4,086		)	—		(4,086		)
Loss on disposal of assets	3,019		1,054			9,580		4,168
Operating special charges (2)	265		—			88,921		12,629
Total operating special items	$	3,284	$	(3,032	)	$	98,501	$	12,711
Non-operating special items include the following:
Non-operating special charges (3)	—		—			90,357		$	—
Total non-operating special items	$	—	$	—		$	90,357	$	—
Total special items	$	3,284	$	(3,032	)	$	188,858	$	12,711

(1) Supplemental rent adjustment for liability accrued in prior years related to certain maintenance reserves and return conditions that are no longer probable.

(2) Operating special charges for the full year 2018 include amounts primarily related to a one-time ratification incentive recognized in connection with a new pilot agreement approved in the first quarter 2018.  Operating special charges for 2017 are related to engine and aircraft lease termination costs.

(3) Non-operating special charges in 2018 are related to the purchase of 14 A319 aircraft, previously operated by the Company under operating leases. Upon execution of the purchase agreement, the lease agreements associated with these aircraft were classified as capital leases on the balance sheet at lower of cost or fair value.  The difference between the resulting capital lease obligation and the purchase price was accreted as interest expense in special charges, non-operating in the statement of operations, through the closing of each individual purchase.  All of the transactions were completed prior to June 30, 2018.

10

Reconciliation of Adjusted Operating Expense to GAAP Operating Expense

(unaudited)

	Three Months Ended					Year Ended
	December 31,					December 31,
(in thousands, except CASM data in cents)	2018		2017			2018		2017
Total operating expenses, as reported	$	726,730	$	574,886		$	2,972,120	$	2,258,727
Less operating special items	3,284		(3,032		)	98,501		12,711
Adjusted operating expenses, non-GAAP (1)	723,446		577,918			2,873,619		2,246,016
Less: Economic fuel expense	229,680		175,205			939,324		615,581
Adjusted operating expenses excluding fuel, non-GAAP (2)	$	493,766	$	402,713		$	1,934,295	$	1,630,435
Available seat miles	8,998,928		7,741,030			36,502,982		29,592,819
CASM (cents)	8.08		7.43			8.14		7.63
Adjusted CASM (cents) (1)	8.04		7.47			7.87		7.59
Adjusted CASM ex-fuel (cents) (2)	5.49		5.20			5.30		5.51

(1) Excludes operating special items.

(2) Excludes operating special items and economic fuel expense.

Reconciliation of Adjusted Net Income, Adjusted Pre-Tax Income, and Adjusted Operating Income to GAAP Net Income

(unaudited)

	Three Months Ended						Year Ended
	December 31,						December 31,
(in thousands, except per share data)	2018			2017			2018			2017
Net income, as reported	$	91,937		$	246,975		$	155,749		$	415,522
Add: Provision (benefit) for income taxes (1)	28,965			(165,231		)	49,227			(65,836		)
Income (loss) before income taxes, as reported	120,902			81,744			204,976			349,686
Pre-tax margin	14.0		%	12.3		%	6.2		%	13.2		%
Add special items (2)	$	3,284		$	(3,032	)	$	188,858		$	12,711
Adjusted income before income taxes, non-GAAP (3)	124,186			78,712			393,834			362,397
Adjusted pre-tax margin, non-GAAP (3)	14.4		%	11.8		%	11.9		%	13.7		%
Add: Total other (income) expense (4)	15,163			9,552			55,581			35,139
Adjusted operating income, non-GAAP (5)	139,349			88,264			449,415			397,536
Adjusted operating margin, non-GAAP (5)	16.2		%	13.2		%	13.5		%	15.0		%
Provision for income taxes	29,494			29,123			92,920			134,379
Adjusted net income, non-GAAP (3)	$	94,692		$	49,589		$	300,914		$	228,018
Weighted average shares, diluted	68,687			68,901			68,431			69,377
Adjusted net income per share, diluted (3)	$1.38			$0.72			$4.40			$3.29
Total operating revenues	$	862,795		$	666,182		$	3,323,034		$	2,643,552

(1) During the fourth quarter of 2017, the Company recorded a non-recurring income tax benefit of $196.7 million due to the enactment of the Tax Cuts and Jobs Act of 2017.

(2) See "Special Items" for more details.

(3) Excludes operating and non-operating special items.

(4) Excludes non-operating special items.

(5) Excludes operating special items.

11

EX-99.2

Exhibit 99.2

Investor Update

February 5, 2019

This investor update provides Spirit's first quarter and full year 2019 guidance. All data is based on preliminary estimates.

For the full year 2019, Spirit estimates its available seat miles ("capacity") will increase approximately 15 percent year over year, up slightly more than its previous 2019 guidance due to a more refined view of its aircraft delivery schedule, timing of wi-fi installations, and a higher aircraft utilization assumption.

For the full year 2019, Spirit estimates its cost per available seat mile excluding fuel ("CASM ex-fuel") will be up 1 to 2 percent year over year. The Company's previous guidance for 2019 CASM ex-fuel was flat to up 1 percent year over year. Since providing this initial guidance, the Company has decided to use sale/leaseback financings for the majority of aircraft delivering in 2019 rather than using debt financing. The Company estimates higher aircraft rent will largely be offset by lower depreciation and lower interest expense such that pre-tax income is minimally impacted by the Company's financing decision. A decrease in estimated average stage length for 2019 also contributes to the variance from its initial CASM ex-fuel guide.

The Company will provide additional details regarding its outlook for 2019 on its conference call scheduled for February 6, 2019.

	1Q19E	1Q18A	FY19E	FY18A
	Y/Y% Change		Y/Y% Change
Capacity - Available Seat Miles (ASMs)(Thousands)	Up ~16.5%	8,408,764	Up ~15%	36,502,982
Total Revenue per ASM (TRASM) (% Change/Cents)(1)	Up ~ 5%	8.37		9.10
Adjusted Operating Expense Ex-Fuel per ASM (%Change/Cents)	Up 2% to 3%	5.33	Up 1% to 2%	5.30
Average Stage Length (Miles)	1,033	1,025	Down 1 to 2%	1,032
Fuel Expense
Fuel gallons (Millions)	113	95	482	412
Economic fuel cost per gallon ($)(2)	$2.06	$2.15		$2.28
Interest Expense, net of Capitalized Interest ($Millions)	$14.5	$11.5	$51.5	$54.8
Effective Tax Rate, Non-GAAP	22%	24%	24%	24%
Wtd. Average Diluted Share Count (Millions)	68.6	68.2	68.7	68.4

1

Full Year 2019 Guidance
	Full Year 2019E
Estimated Cash Tax Rate(3)		1% to 2%
Capital Expenditures ($Millions)
Purchase of property and equipment, net of pre-delivery deposits and refunds:(4)		$160
Other capital expenditures		$50
Total capital expenditures		$210
Anticipated proceeds from issuance of long-term debt ($Millions)		$70
Other Working Capital Requirements ($Millions)
Payments for heavy maintenance events(5)		$189
Pre-paid maintenance deposits, net of reimbursements		$12

Footnotes

(1)	Excludes special items which may include loss on disposal of assets, special charges, and other items.
(2)	Includes fuel taxes and into-plane fuel cost.
(3)	Spirit's cash tax rate differs from its effective tax rate primarily due to the benefit related to bonus depreciation on the acquisition of purchased aircraft.
(4)	Excludes capital commitments related to 9 aircraft that the Company anticipates to be financed via sale/leaseback transactions. Includes the purchase of 1 spare engine and other parts.
(5)	Payments for heavy maintenance events are recorded as "Deferred heavy maintenance" within "Changes in operating assets and liabilities" on the Company's cash flow statement.

2

Spirit Airlines, Inc.
		Aircraft Delivery Schedule (net of Scheduled Retirements) as of February 5, 2019
			A319		A320 CEO	A320 NEO	A321 CEO	Total
Total Year-end 2018			31		60	7	30	128
	1Q19		—		1	4	—	5
	2Q19		—		1	1	—	2
	3Q19		—		—	3	—	3
	4Q19		—		—	6	—	6
Total Year-end 2019			31		62	21	30	144
	1Q20		—		—	4	—	4
	2Q20		—		—	4	—	4
	3Q20		—		—	4	—	4
	4Q20		—		—	4	—	4
Total Year-end 2020			31		62	37	30	160
	2021		(1	)	—	18	—	17
Total Year-end 2021			30		62	55	30	177
Seat Configurations
	A319	145
	A320	182
	A321	228

3

Forward-Looking Statements

Statements in this release and certain oral statements made from time to time by representatives of the Company contain various forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the Securities Act), and Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act) which are subject to the “safe harbor” created by those sections. Forward-looking statements are based on our management’s beliefs and assumptions and on information currently available to our management. All statements other than statements of historical facts are “forward-looking statements” for purposes of these provisions. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “project,” “predict,” “potential,” and similar expressions intended to identify forward-looking statements. Forward-looking statements include, without limitation, statements regarding the Company's intentions and expectations regarding the delivery schedule of aircraft on order, guidance and estimates for the first quarter and full year 2019, including expectations regarding the delivery schedule of aircraft on order, announced new service routes, revenues, TRASM, cost of operations, operating margin, capacity, CASM, CASM ex-fuel, fuel expense, economic fuel cost, expected unrealized mark-to-market gains or losses, capital expenditures and other working capital requirements, aircraft rent, depreciation and amortization, fuel hedges and tax rates. Such forward-looking statements are subject to risks, uncertainties and other important factors that could cause actual results and the timing of certain events to differ materially from future results expressed or implied by such forward-looking statements. Furthermore, such forward-looking statements speak only as of the date of this release. Except as required by law, we undertake no obligation to update any forward-looking statements to reflect events or circumstances after the date of such statements. Risks or uncertainties (i) that are not currently known to us, (ii) that we currently deem to be immaterial, or (iii) that could apply to any company, could also materially adversely affect our business, financial condition, or future results. References in this report to “Spirit,” “we,” “us,” “our,” or the “Company” shall mean Spirit Airlines, Inc., unless the context indicates otherwise. Additional information concerning certain factors is contained in the Company's Securities and Exchange Commission filings, including but not limited to the Company's Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K.

4