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Operating Revenues (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Agreements with other airlines |
Schedule of aircraft and agreements with major airline partners | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
United Express Agreements
Agreement |  | Aircraft type |  | Number of Aircraft |  | Term / Termination Dates
United Express Agreements (capacity purchase agreements) | ​ | • E175 • CRJ700/CRJ550 • CRJ200 | ​ | 114 27 50 | ​ | Individual aircraft have scheduled removal dates under the agreements between 2025 and 2033
​ United Express Prorate Agreement | ​ | • CRJ200 | ​ | 27* | ​ | Terminable with 120-day notice
Total under United Express Agreements | ​ | ​ | ​ | 218 | ​ | ​
Delta Connection Agreements
Agreement |  | Aircraft type |  | Number of Aircraft |  | Term / Termination Dates
Delta Connection Agreement (capacity purchase agreement) | ​ | • E175 • CRJ900 • CRJ700 ​ | ​ | 86 35 5 | ​ | Individual aircraft have scheduled removal dates under the agreement between 2026 and 2034
​ | ​ | ​ | ​ | ​ | ​ | ​
Delta Connection Prorate Agreement ​ | ​ | • CRJ700/CRJ550 | ​ | 14* | ​ | Terminable with 30-day notice
Total under Delta Connection Agreements | ​ | ​ | ​ | 140 | ​ | ​
​
​ | ​ | ​ | ​ | ​ | ​ | ​
American Capacity Purchase Agreement
Agreement |  | Aircraft type |  | Number of Aircraft |  | Term / Termination Dates
American Agreement (capacity purchase agreement) | ​ | • E175 • CRJ700 | ​ | 20 68 | ​ | Individual aircraft have scheduled removal dates under the agreement between 2027 and 2032
Total under American Agreement | ​ | ​ | ​ | 88 | ​ | ​
​ ​
Alaska Capacity Purchase Agreement
Agreement |  | Aircraft type |  | Number of Aircraft |  | Term / Termination Dates
Alaska Agreement (capacity purchase agreement) | ​ | • E175 | ​ | 42 | ​ | Individual aircraft have scheduled removal dates under the agreement between 2030 and 2034
* | The Company’s prorate agreements are based on specific routes, not a specific aircraft count. The number of aircraft listed above for each prorate agreement approximates the number of aircraft the Company uses to serve the prorate routes.
Schedule of future minimum rental payments for operating leases | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended March 31,
​ |  | 2025 |  | 2024
Operating lease fixed revenue | ​ | $ | 16,065 | ​ | $ | 11,599
Operating lease variable revenue | ​ | ​ | 7,009 | ​ | ​ | 5,069
Airport customer service and other revenue | ​ | ​ | 9,387 | ​ | ​ | 8,657
Lease, airport services and other | ​ | $ | 32,461 | ​ | $ | 25,325
Schedule of allowance for credit losses | The following table summarizes the changes in allowance for credit losses (in thousands):
​ | ​ | ​ | ​
​ |  | Allowance for Credit Losses
Balance at December 31, 2024 | ​ | $ | 15,071
Adjustments to credit loss reserves | ​ | ​ | 684
Write-offs charged against allowance | ​ | ​ | (63)
Balance at March 31, 2025 | ​ | $ | 15,692
​
Airport customer service and other |
Agreements with other airlines |
Schedule of revenue by type | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended March 31,
​ |  | 2025 |  | 2024
Operating lease fixed revenue | ​ | $ | 16,065 | ​ | $ | 11,599
Operating lease variable revenue | ​ | ​ | 7,009 | ​ | ​ | 5,069
Airport customer service and other revenue | ​ | ​ | 9,387 | ​ | ​ | 8,657
Lease, airport services and other | ​ | $ | 32,461 | ​ | $ | 25,325
Flying agreements |
Agreements with other airlines |
Schedule of revenue by type | The following table represents the Company’s flying agreements revenue by type for the three months ended March 31, 2025 and 2024 (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the three months ended March 31,
​ |  | 2025 |  | 2024
Capacity purchase agreements flight operations revenue (non-lease component) | ​ | $ | 639,153 | ​ | $ | 544,160
Capacity purchase agreements fixed aircraft lease revenue | ​ | ​ | 110,988 | ​ | ​ | 75,159
Capacity purchase agreements variable aircraft lease revenue | ​ |  | 35,039 | ​ |  | 57,886
Prorate agreements and SWC revenue | ​ |  | 130,814 | ​ |  | 101,084
Flying agreements revenue | ​ | $ | 915,994 | ​ | $ | 778,289

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