Flight
UAL921 15 Apr 2026
UAL921, operated by United Airlines, on 15 Apr 2026, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 00:00Z |
| Last seen | 00:58Z |
| Duration | 0h 58m |
| Aircraft | N664UA |
| Max altitude | 35,550 ft |
Leg 2 of 2partial
PlaneTrack receiver network| Route | EGLL HEATHROW → ? |
| Status | Partial record (receiver network) |
| First seen airborne | 03:34 BST |
| Aircraft | N664UA |
| Max altitude | 36,025 ft |
| Distance tracked | 2,818 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 1 (14%) |
| Average delay | +56 min |
| Worst delay | +237 min |
In the last 30 days UAL921 departed on time (within 15 minutes) on 1 of 7 flights (14%), with an average departure delay of +56 min and a worst delay of +237 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.