Flight
UAL1221 20 Dec 2025
UAL1221, operated by United Airlines, on 20 Dec 2025: Los Angeles International (KLAX) to San Francisco International (KSFO), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | KLAX LOS ANGELES INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:08 PST 19 Dec |
| Last seen | 19:44 PST 19 Dec |
| Duration | 1h 36m |
| Aircraft | N16217 |
| Max altitude | 30,000 ft |
| Distance tracked | 293 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → ? |
| Status | Completed (receiver network) |
| First seen airborne | 21:09 PST 19 Dec |
| Last seen | 22:38Z |
| Duration | 17h 28m |
| Aircraft | A12731 |
| Max altitude | 33,000 ft |
Punctuality, last 30 days
| Flights | 11 |
| On time | 6 (55%) |
| Average delay | +26 min |
| Worst delay | +113 min |
In the last 30 days UAL1221 departed on time (within 15 minutes) on 6 of 11 flights (55%), with an average departure delay of +26 min and a worst delay of +113 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.