Flight
UAL421 24 Sep 2026
UAL421, operated by United Airlines, on 24 Sep 2026, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2partial
PlaneTrack receiver network| Route | KIAD WASHINGTON DULLES INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 20:00 EDT 23 Sep |
| Aircraft | N14557 |
| Max altitude | 35,025 ft |
Leg 2 of 2partial
PlaneTrack receiver network| Route | KIAD WASHINGTON DULLES INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 23:08 EDT 23 Sep |
| Aircraft | N36472 |
| Max altitude | 36,000 ft |
Punctuality, last 30 days
| Flights | 14 |
| On time | 5 (36%) |
| Average delay | +37 min |
| Worst delay | +175 min |
In the last 30 days UAL421 departed on time (within 15 minutes) on 5 of 14 flights (36%), with an average departure delay of +37 min and a worst delay of +175 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.