Flight
UAL1277 12 May 2026
UAL1277, operated by United Airlines, on 12 May 2026: San Francisco International (KSFO) to Washington Dulles International (KIAD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 06:35 PDT |
| Last seen | 14:26 EDT |
| Duration | 4h 50m |
| Aircraft | N56859 |
| Max altitude | 39,000 ft |
| Distance tracked | 2,096 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KIAD WASHINGTON DULLES INTERNATIONAL → ? |
| Status | Completed (receiver network) |
| First seen airborne | 17:08 EDT |
| Last seen | 22:44Z |
| Duration | 1h 35m |
| Aircraft | N37545 |
| Max altitude | 38,025 ft |
Punctuality, last 30 days
| Flights | 7 |
| On time | 0 (0%) |
| Average delay | +43 min |
| Worst delay | +87 min |
In the last 30 days UAL1277 departed on time (within 15 minutes) on 0 of 7 flights (0%), with an average departure delay of +43 min and a worst delay of +87 min.
Schedule, departure and arrival times from the FAA SWIM feed; aircraft, altitude and distance from the PlaneTrack receiver network. On time means a departure within 15 minutes of schedule.