On-time airlines
Every carrier that reported domestic on-time data to BTS in the 12 months to July 2026, ordered by the share of scheduled flights that arrived less than 15 minutes late. All carriers together: 76.0%.
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Carriers fly different networks: a carrier concentrated at congested or storm-prone airports faces different conditions from one that is not.
| # | Reporting carrier | Flights | On time | Change on previous 12 months | Avg arrival delay | Cancelled | Diverted |
|---|---|---|---|---|---|---|---|
| 1 | HA Hawaiian Airlines (5 of 12 months) | 33,121 | 81.2% | −3.2 pts | 7.6 min | 0.7% | 0.1% |
| 2 | DL Delta Air Lines | 1,038,644 | 79.9% | −0.7 pts | 3.9 min | 1.7% | 0.3% |
| 3 | MQ Envoy Air | 317,726 | 78.9% | +0.2 pts | 4.2 min | 2.2% | 0.3% |
| 4 | AS Alaska Airlines | 301,435 | 78.5% | +1.8 pts | 2.9 min | 1.2% | 0.3% |
| 5 | UA United Airlines | 825,693 | 78.2% | −1.0 pts | 6.3 min | 1.0% | 0.3% |
| 6 | OO SkyWest Airlines | 854,130 | 77.4% | −1.4 pts | 9.6 min | 1.8% | 0.3% |
| 7 | WN Southwest Airlines | 1,389,951 | 75.5% | −4.4 pts | 6.8 min | 0.9% | 0.2% |
| 8 | YX Republic Airline | 363,168 | 75.3% | −4.2 pts | 5.3 min | 4.1% | 0.2% |
| 9 | G4 Allegiant Air | 126,499 | 73.3% | −1.8 pts | 15.2 min | 0.7% | 0.3% |
| 10 | AA American Airlines | 987,645 | 72.7% | −1.6 pts | 13.3 min | 2.2% | 0.4% |
| 11 | F9 Frontier Airlines | 209,405 | 71.6% | +1.0 pts | 13.3 min | 1.9% | 0.2% |
| 12 | OH PSA Airlines | 242,215 | 70.7% | 0.0 pts | 15.1 min | 4.3% | 0.3% |
| 13 | B6 JetBlue Airways | 237,090 | 69.9% | −3.9 pts | 12.7 min | 3.1% | 0.3% |
| 14 | NK Spirit Airlines (10 of 12 months) | 117,136 | 69.8% | −8.2 pts | 12.2 min | 3.9% | 0.2% |
No minimum beyond BTS's own reporting threshold: every reporting carrier with at least 1,000 flights in the period is listed. Regional carriers operate flights sold under larger airlines' brands and are listed under their own BTS codes. Which airlines report.