Flight
UAL1540 22 Dec 2025
UAL1540, operated by United Airlines, on 22 Dec 2025, 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2
PlaneTrack receiver network| Route | ? → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 00:00Z |
| Last seen | 19:16 PST 21 Dec |
| Duration | 3h 16m |
| Aircraft | N437UA |
| Max altitude | 34,050 ft |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | Route not recorded |
| Status | Completed (receiver network) |
| First seen airborne | 11:04Z |
| Last seen | 23:58Z |
| Duration | 12h 53m |
| Aircraft | N437UA |
| Max altitude | 32,025 ft |
Punctuality, last 30 days
| Flights | 7 |
| On time | 7 (100%) |
| Average delay | +7 min |
| Worst delay | +13 min |
In the last 30 days UAL1540 departed on time (within 15 minutes) on 7 of 7 flights (100%), with an average departure delay of +7 min and a worst delay of +13 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.