Flight
UAL1129 19 Dec 2025
UAL1129, operated by United Airlines, on 19 Dec 2025: Washington Dulles International (KIAD) to San Francisco International (KSFO). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KIAD WASHINGTON DULLES INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 19:00 EST 18 Dec |
| Last seen | 21:36 PST 18 Dec |
| Duration | 5h 35m |
| Aircraft | A12F73 |
| Max altitude | 34,025 ft |
| Distance tracked | 2,096 nm |
Punctuality, last 30 days
| Flights | 5 |
| On time | 1 (20%) |
| Average delay | +18 min |
| Worst delay | +24 min |
In the last 30 days UAL1129 departed on time (within 15 minutes) on 1 of 5 flights (20%), with an average departure delay of +18 min and a worst delay of +24 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.