Flight
UAL2123 6 Jan 2026
UAL2123, operated by United Airlines, on 6 Jan 2026: Denver International (KDEN) to San Francisco International (KSFO). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KSFO SAN FRANCISCO INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 23:23 MST 5 Jan |
| Last seen | 15:58 PST |
| Duration | 17h 34m |
| Aircraft | A3D302 |
| Max altitude | 36,025 ft |
| Distance tracked | 838 nm |
Punctuality, last 30 days
| Flights | 8 |
| On time | 2 (25%) |
| Average delay | +43 min |
| Worst delay | +87 min |
In the last 30 days UAL2123 departed on time (within 15 minutes) on 2 of 8 flights (25%), with an average departure delay of +43 min and a worst delay of +87 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.