Flight
UAL1921 21 Sep 2026
UAL1921, operated by United Airlines, on 21 Sep 2026. Scheduled and actual times are local to each airport (hover for UTC).
Flightpartial
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 17:00 PDT 20 Sep |
| Aircraft | A0B88A |
| Max altitude | 34,050 ft |
| Distance tracked | 1,600 nm |
Punctuality, last 30 days
| Flights | 8 |
| On time | 2 (25%) |
| Average delay | -295 min |
| Worst delay | +105 min |
In the last 30 days UAL1921 departed on time (within 15 minutes) on 2 of 8 flights (25%), with an average departure delay of -295 min and a worst delay of +105 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.