Flight
UAL1839 28 Aug 2026
UAL1839, operated by United Airlines, on 28 Aug 2026, 3 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 3estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 03:10Z |
| Last seen | 10:20Z |
| Duration | 7h 09m |
| Aircraft | A2452A |
Leg 2 of 3estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 12:08Z |
| Last seen | 22:20Z |
| Duration | 10h 12m |
| Aircraft | A2452A |
| Max altitude | 36,050 ft |
Leg 3 of 3partial
PlaneTrack receiver network| Route | KSFO SAN FRANCISCO INTERNATIONAL → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 16:32 PDT |
| Aircraft | A3D302 |
Punctuality, last 30 days
| Flights | 8 |
| On time | 0 (0%) |
| Average delay | +42 min |
| Worst delay | +72 min |
In the last 30 days UAL1839 departed on time (within 15 minutes) on 0 of 8 flights (0%), with an average departure delay of +42 min and a worst delay of +72 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.