US Flight Delays in August 2024
By Sharon Ben-Moshe · US DOT data · last updated 2026-09-28
In August 2024, US airlines operated 619,025 domestic flights and 76% arrived on time, up 6.2 points from July 2024. Hawaiian Airlines led the reporting carriers at 88% on time; JetBlue Airways trailed at 64%.
- Flights
- 619,025
- On-time
- 76%
- arrived <15 min late
- Avg delay
- 19 min
- Cancelled
- 2.1%
- vs Jul 2024
- +6.2 pts
- on-time change
Airline on-time rates in August 2024
Reporting carriers with at least 1,000 flights in the month.
| Airline | On-time | vs prior month | Avg delay | Flights |
|---|---|---|---|---|
| Hawaiian Airlines | 88% | +3.3 pts | 7 min | 6,829 |
| Delta Air Lines | 81% | +10.8 pts | 15 min | 90,397 |
| Envoy Air | 80% | +9.0 pts | 13 min | 25,925 |
| Republic Airways | 80% | +2.4 pts | 16 min | 25,916 |
| SkyWest Airlines | 80% | +1.2 pts | 17 min | 65,390 |
| Southwest Airlines | 80% | +8.5 pts | 12 min | 118,338 |
| Endeavor Air | 79% | +8.2 pts | 19 min | 17,102 |
| United Airlines | 77% | +5.6 pts | 19 min | 65,939 |
| Allegiant Air | 75% | +4.6 pts | 23 min | 9,244 |
| PSA Airlines | 75% | +9.0 pts | 23 min | 20,730 |
| Alaska Airlines | 75% | +0.7 pts | 14 min | 23,265 |
| Spirit Airlines | 70% | +5.5 pts | 24 min | 24,676 |
| American Airlines | 69% | +6.9 pts | 29 min | 85,963 |
| Frontier Airlines | 67% | +2.6 pts | 27 min | 18,813 |
| JetBlue Airways | 64% | -5.2 pts | 34 min | 20,498 |
Most delayed large airports
Most reliable large airports
Most delay-prone routes in August 2024
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 619,025 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.