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Debt (Tables) | 12 Months Ended
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Dec. 31, 2025
Debt Disclosure [Abstract] |
Schedule of Debt Obligations | The Company’s debt obligations are as follows (in millions):
| December 31,
| 2025 |  | 2024
Secured debt: |  |  |
Pre-delivery Credit Facilities(a) | $ | 348 |  |  | $ | 329 |
Building notes(b) | — |  |  | 12 |
Revolving loan facility(c) | — |  |  | — |
2025-1 EETCs(d) | 105 |  |  | — |
Unsecured debt: |  |  |
Affinity card advance purchase of miles(e) | 101 |  |  | 100 |
PSP Promissory Notes(f) | 66 |  |  | 66 |
Total debt | 620 |  |  | 507 |
Less: current maturities of long-term debt, net | (301) |  |  | (261) |
Less: total debt acquisition costs and other discounts, net | (6) |  |  | (5) |
Long-term debt, net | $ | 313 |  |  | $ | 241 |
_________________ (a)The Company has multiple pre-delivery credit facilities which consists of the PDP Financing Facility, the Second PDP Financing Facility and the Third PDP Financing Facility, all as defined below (together, the “Pre-delivery Credit Facilities”). The Pre-delivery Credit Facilities are for the financing of PDPs for the Company’s A320neo family aircraft purchase agreement. Each facility is collateralized by the Company’s purchase agreement for the associated A320neo family aircraft deliveries through the term of the respective facilities. Total commitments (drawn or undrawn) under the Pre-delivery Credit Facilities are $391 million. See Note 11 for the Company’s commitment schedule regarding its A320neo family orderbook. The Company, through an affiliate, entered into a PDP facility in December 2014 (as amended from time to time, the “PDP Financing Facility”) for the financing of certain aircraft PDPs. The facility consists of separate loans for each PDP aircraft. Interest is paid every 90 days based on the Secured Overnight Financing Rate (“SOFR”) plus a margin for each separate loan. Each separate loan matures upon the earlier of (i) delivery of that aircraft to the Company by Airbus, (ii) the date one month following the last day of the scheduled delivery month of such aircraft and (iii) if there is a delay in delivery of aircraft, depending on the cause of the delivery delay, up to six months following the last day of the scheduled delivery month of such aircraft. The PDP Financing Facility will be repaid periodically according to the preceding sentence, as amended in 2025, with the facility maturing in December 2027. In September 2024, the Company, through an affiliate, entered into a PDP facility (the “Second PDP Financing Facility”) with a lender not otherwise party to the PDP Financing Facility or Third PDP Financing Facility in connection with the financing of PDPs for certain aircraft deliveries not associated with either the PDP Financing Facility or the Third PDP Financing Facility. Interest is paid quarterly based on SOFR plus an applicable margin. Additionally, the Second PDP Financing Facility requires a commitment fee based on the level of the outstanding loan amounts compared to the committed amount. The Second PDP Financing Facility is expected to be repaid at maturity in September 2027, which may be extended by two additional years. If any such extension request is rejected by the lender, the Company may extend the original maturity date of the Second PDP Financing Facility by six months. In September 2024, the Company entered into another PDP facility (the “Third PDP Financing Facility”) with a lender not otherwise party to the PDP Financing Facility or Second PDP Financing Facility in connection with the financing of PDPs for certain aircraft deliveries not associated with either the PDP Financing Facility or the Second PDP Financing Facility. The Third PDP Financing Facility requires commitment fees to be paid, on a quarterly basis, on each individual aircraft delivery once PDP funding begins, based on the reference amount for that aircraft at a fixed annual rate of the two-year U.S. Treasury Rate plus an applicable margin. The facility consists of separate loans for each PDP aircraft. Each separate loan matures upon the delivery of that aircraft to the Company. The Third PDP Financing Facility will be repaid periodically according to the preceding sentence, with the facility maturing in August 2026. (b)Represents notes with a commercial bank related to the Company’s headquarters. In June 2024, the Company entered into a $6 million note maturing in June 2031 and then entered into a second agreement in September 2024 with the same lender to fund an additional $6 million note maturing in September 2031, bringing the total indebtedness to $12 million. The Company was required to make regular monthly payments on principal and unpaid interest. In December 2025, the Company extinguished the building notes by paying all unpaid principal and accrued unpaid interest. (c)In September 2024, the Company entered into a revolving line of credit available for general corporate purposes (the “Revolving Loan Facility”). As amended in December 2025 to increase the maximum borrowing capacity, the Revolving Loan Facility provides for $220 million of commitments secured by the Company’s loyalty programs and brand-related assets. The Revolving Loan Facility will bear interest at an annual rate of term SOFR for the applicable interest period (or, at the Company’s option, an alternate base rate) plus an applicable margin, payable in quarterly installments, on any outstanding balance. A quarterly commitment fee is also payable in arrears at an applicable rate multiplied by the undrawn amount of the Revolving Loan Facility. The Revolving Loan Facility matures in September 2027. (d)In November 2025, the Company issued approximately $105 million of class A-1 enhanced equipment trust certificates (the “2025-1 EETCs”) through a passthrough trust in a private placement. The pass-through trust holds series A-1 equipment notes with a coupon rate of 6.75% and final payment due in October 2032, that are issued by the Company and guaranteed by Frontier Airlines Holdings, Inc. and Frontier Group Holdings, Inc. The equipment notes are secured by liens on substantially all of the Company’s spare parts and tooling. Principal and interest on the issued and outstanding certificates is payable semiannually in April and October of each year, commencing in April 2026. (e)The Company entered into an agreement with Barclays in 2003, amended from time to time, which provides for joint marketing, grants certain benefits to Cardholders and allows Barclays to market using the Company’s customer database, through 2029. Cardholders earn miles under the FRONTIER Miles program and the Company sells miles at agreed-upon rates to Barclays and earns fees from Barclays for the acquisition, retention and use of the co-branded credit card by Cardholders. In addition, Barclays will pre-purchase miles if the Company so requests and meets certain conditions precedent. The pre-purchased miles facility amount available to the Company is to be reset on January 15 of each calendar year through 2028, based on the aggregate amount of fees payable by Barclays to the Company on a calendar year basis and subject to certain other conditions, up to an aggregate maximum facility amount of $200 million. The Company pays interest on a monthly basis, which is based on a one-month Effective Federal Funds Rate (“EFFR”) plus a margin. Beginning December 2028, the facility is scheduled to be repaid in 12 equal monthly installments. (f)As a result of the Company’s participation in the payroll support programs offered by the U.S. Department of the Treasury (the “Treasury”), the Company obtained a series of 10-year loans from the Treasury (collectively, the “PSP Promissory Notes”) that are due between 2030 and 2031. The PSP Promissory Notes include an annual interest rate of 1.00% for the first five years and the SOFR plus 2.00% in the final five years, with bi-annual interest payments. The loans can be prepaid at par at any time without incurring a penalty. In connection with the term loan facility entered into with the Treasury on September 28, 2020, which was repaid in full in February 2022, and the PSP Promissory Notes, the Company issued warrants to purchase 3,117,940 shares of FGHI common stock at a weighted-average price of $6.95 per share. During the year ended December 31, 2025, 1,244,608 warrants were exercised. The Company settled the exercises through a net share settlement of 248,893 shares of FGHI common stock and cash of less than $1 million. During the year ended December 31, 2025, 1,636,058 warrants expired. As of December 31, 2025, warrants to purchase 237,274 shares of FGHI common stock were outstanding. The remainder of the warrants will expire between March 2026 and June 2026.
Schedule of Maturities of Long-term Debt | As of December 31, 2025, future maturities of debt are payable as follows (in millions):
| Total
Year Ending |
2026 | $ | 303 |
2027 | 63 |
2028 | 18 |
2029 | 102 |
2030 | 42 |
Thereafter | 92 |
Total debt principal payments | $ | 620 |

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