US flight delays report: March 2026
US airlines reported 612,102 scheduled domestic flights in March 2026. 75.7% arrived on time (down 4.6 pts from the previous month), and 2.9% were cancelled. Envoy Air was the most punctual airline (80.1%), and Spirit Airlines the least (54.2%).
On-time arrivals
76%
arrived < 15 min late
Cancelled
2.9%
17,766 flights
Avg arrival delay
20 min
78 min when late
1 hr+ late
9.5%
612,102 flights tracked
Airline rankings, March 2026
| # | Airline | On time | Cancelled | Avg delay | Flights |
|---|---|---|---|---|---|
| 1 | Envoy Air | 80.1% | 3.1% | 16 min | 26,721 |
| 2 | Delta Air Lines | 79.9% | 3.6% | 16 min | 86,890 |
| 3 | United Airlines | 79.1% | 1.5% | 18 min | 70,757 |
| 4 | Alaska Airlines | 78.1% | 1.9% | 14 min | 27,793 |
| 5 | SkyWest Airlines | 77.8% | 3.6% | 23 min | 73,391 |
| 6 | American Airlines | 74.7% | 2.0% | 23 min | 84,647 |
| 7 | Southwest Airlines | 74.4% | 1.6% | 16 min | 122,298 |
| 8 | Republic Airways | 73.0% | 5.8% | 21 min | 31,734 |
| 9 | Allegiant Air | 72.3% | 1.6% | 28 min | 12,522 |
| 10 | PSA Airlines | 71.3% | 7.4% | 31 min | 20,938 |
| 11 | Frontier Airlines | 70.2% | 3.2% | 27 min | 20,119 |
| 12 | JetBlue | 70.0% | 2.0% | 23 min | 21,340 |
| 13 | Spirit Airlines | 54.2% | 10.4% | 38 min | 12,952 |
Most delayed major airports
Airports with 100+ departures a day.
Most on-time major airports
Most delayed busy routes
Routes with 5+ flights a day.
Most cancelled busy routes
What caused delays this month
- Late-arriving aircraft39%
- Airline (crew, maintenance, cleaning, fueling)34%
- Air traffic control & airport congestion21%
- Extreme weather6%
- Security0%
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, March 2026. Methodology.