Flight
UAL3921 23 Sep 2026
UAL3921, operated by United Airlines, on 23 Sep 2026: George Bush Intcntl Houston (KIAH) to Washington Dulles International (KIAD). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KIAH GEORGE BUSH INTCNTL HOUSTON → KIAD WASHINGTON DULLES INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 09:19 CDT |
| Last seen | 13:02 EDT |
| Duration | 2h 42m |
| Aircraft | N21108 |
| Max altitude | 41,000 ft |
| Distance tracked | 1,033 nm |
Punctuality, last 30 days
| Flights | 2 |
| On time | 0 (0%) |
| Average delay | +58 min |
| Worst delay | +97 min |
In the last 30 days UAL3921 departed on time (within 15 minutes) on 0 of 2 flights (0%), with an average departure delay of +58 min and a worst delay of +97 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.