Flight
UAL3939 24 Jan 2026
UAL3939, operated by United Airlines, on 24 Jan 2026: Memphis International (KMEM) to Denver International (KDEN). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KMEM MEMPHIS INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 23:01 CST 23 Jan |
| Last seen | 00:24 MST |
| Duration | 2h 23m |
| Aircraft | N79521 |
| Max altitude | 40,000 ft |
| Distance tracked | 756 nm |
Punctuality, last 30 days
| Flights | 1 |
| On time | 0 (0%) |
| Average delay | +30 min |
| Worst delay | +30 min |
In the last 30 days UAL3939 departed on time (within 15 minutes) on 0 of 1 flight (0%), with an average departure delay of +30 min and a worst delay of +30 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.