Flight
UAL3873 14 Mar 2026
UAL3873, operated by United Airlines, on 14 Mar 2026. Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | ? → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 05:52Z |
| Last seen | 08:46 PDT |
| Duration | 9h 53m |
| Aircraft | N2136U |
| Max altitude | 39,000 ft |
Punctuality, last 30 days
| Flights | 2 |
| On time | 0 (0%) |
| Average delay | +77 min |
| Worst delay | +97 min |
In the last 30 days UAL3873 departed on time (within 15 minutes) on 0 of 2 flights (0%), with an average departure delay of +77 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.