Most delayed airlines in United States
Ranked by on-time arrival rate on United States routes, worst first. This is each airline's record on these routes only — not its record everywhere. January 2025 – August 2026.
Source: the US Bureau of Transportation Statistics.
| # | Airline | Flights | On time |
|---|---|---|---|
| 1 | LATAM Brasil | 398 | 62.6% |
| 2 | JetBlue Airways | 230,318 | 72.7% |
| 3 | Spirit Airlines | 125,467 | 72.9% |
| 4 | Frontier Airlines | 203,552 | 73.2% |
| 5 | Allegiant Air | 120,613 | 74% |
| 6 | British Airways | 15,974 | 74.2% |
| 7 | American Airlines | 991,556 | 74.4% |
| 8 | PSA Airlines | 239,181 | 74.5% |
| 9 | Southwest Airlines | 1,378,477 | 76.5% |
| 10 | Aer Lingus | 295 | 76.9% |
| 11 | Republic Airways | 356,780 | 78.5% |
| 12 | SkyWest Airlines | 834,268 | 78.9% |
| 13 | United Airlines | 825,202 | 78.9% |
| 14 | Alaska Airlines | 291,262 | 79.1% |
| 15 | Virgin Atlantic | 9,263 | 79.1% |
| 16 | Envoy Air | 313,654 | 80.2% |
| 17 | Hawaiian Airlines | 39,850 | 81.5% |
| 18 | Delta Air Lines | 1,033,470 | 81.6% |
| 19 | Gol Linhas Aéreas | 334 | 88.5% |