Flight
UAL2421 21 May 2026
UAL2421, operated by United Airlines, on 21 May 2026. Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → ? |
| Status | Completed (receiver network) |
| First seen airborne | 14:23 PDT |
| Last seen | 22:58Z |
| Duration | 1h 34m |
| Aircraft | A126EA |
| Max altitude | 31,000 ft |
Punctuality, last 30 days
| Flights | 5 |
| On time | 2 (40%) |
| Average delay | +21 min |
| Worst delay | +52 min |
In the last 30 days UAL2421 departed on time (within 15 minutes) on 2 of 5 flights (40%), with an average departure delay of +21 min and a worst delay of +52 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.