US Flight Delays in April 2026
By Sharon Ben-Moshe · US DOT data · last updated 2026-07-01
In April 2026, US airlines operated 597,919 domestic flights and 80% arrived on time, up 4.2 points from March 2026. Delta Air Lines led the reporting carriers at 85% on time; Spirit Airlines trailed at 65%.
- Flights
- 597,919
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 14 min
- Cancelled
- 0.9%
- vs Mar 2026
- +4.2 pts
- on-time change
Airline on-time rates in April 2026
Reporting carriers with at least 1,000 flights in the month.
| Airline | On-time | vs prior month | Avg delay | Flights |
|---|---|---|---|---|
| Delta Air Lines | 85% | +5.2 pts | 10 min | 87,115 |
| Alaska Airlines | 84% | +6.2 pts | 9 min | 27,222 |
| United Airlines | 82% | +3.6 pts | 13 min | 69,451 |
| Republic Airways | 82% | +8.9 pts | 13 min | 31,013 |
| Envoy Air | 81% | +1.4 pts | 14 min | 27,127 |
| SkyWest Airlines | 80% | +2.0 pts | 18 min | 73,115 |
| Southwest Airlines | 78% | +3.3 pts | 12 min | 117,814 |
| American Airlines | 78% | +3.2 pts | 18 min | 84,538 |
| PSA Airlines | 77% | +5.7 pts | 22 min | 20,547 |
| Allegiant Air | 76% | +3.7 pts | 19 min | 10,318 |
| JetBlue Airways | 76% | +6.0 pts | 16 min | 20,650 |
| Frontier Airlines | 74% | +4.0 pts | 21 min | 18,540 |
| Spirit Airlines | 65% | +11.2 pts | 25 min | 10,469 |
Most delayed large airports
Most reliable large airports
Most delay-prone routes in April 2026
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 597,919 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.