US Flight Delays in August 2025
By Sharon Ben-Moshe · US DOT data · last updated 2026-07-01
In August 2025, US airlines operated 602,378 domestic flights and 77% arrived on time, up 6.4 points from July 2025. Hawaiian Airlines led the reporting carriers at 86% on time; American Airlines trailed at 69%.
- Flights
- 602,378
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 18 min
- Cancelled
- 1.1%
- vs Jul 2025
- +6.4 pts
- on-time change
Airline on-time rates in August 2025
Reporting carriers with at least 1,000 flights in the month.
| Airline | On-time | vs prior month | Avg delay | Flights |
|---|---|---|---|---|
| Hawaiian Airlines | 86% | +6.1 pts | 9 min | 6,946 |
| Republic Airways | 83% | +10.7 pts | 13 min | 29,958 |
| Delta Air Lines | 83% | +8.0 pts | 13 min | 90,313 |
| SkyWest Airlines | 79% | +3.9 pts | 18 min | 74,150 |
| Envoy Air | 79% | +5.1 pts | 15 min | 26,564 |
| Southwest Airlines | 78% | +7.5 pts | 13 min | 114,519 |
| Spirit Airlines | 77% | +2.4 pts | 17 min | 17,155 |
| United Airlines | 76% | +7.1 pts | 18 min | 68,946 |
| PSA Airlines | 76% | +7.1 pts | 23 min | 20,427 |
| Allegiant Air | 76% | +6.2 pts | 25 min | 10,499 |
| JetBlue Airways | 75% | +9.1 pts | 20 min | 20,204 |
| Alaska Airlines | 73% | +3.6 pts | 15 min | 22,976 |
| Frontier Airlines | 70% | +6.6 pts | 25 min | 16,697 |
| American Airlines | 69% | +4.5 pts | 28 min | 83,024 |
Most delayed large airports
Most reliable large airports
Most delay-prone routes in August 2025
Routes with at least 60 flights in the month.
National figures are flight-weighted averages across all reporting carriers for the month; see the methodology for definitions and limitations.
More reports
Based on 602,378 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.