Flight
UAL557 15 Apr 2026
UAL557, operated by United Airlines, on 15 Apr 2026: Buckley Afb (KBKF) to Denver International (KDEN), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).
Leg 1 of 2estimated
PlaneTrack receiver network| Route | KBKF BUCKLEY AFB → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 18:00 MDT 14 Apr |
| Last seen | 18:48 MDT 14 Apr |
| Duration | 0h 47m |
| Aircraft | N446UA |
| Max altitude | 29,325 ft |
| Distance tracked | 10 nm |
Leg 2 of 2
PlaneTrack receiver network| Route | KCHS CHARLESTON AFB INTERNATIONAL → KDEN DENVER INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 11:29 EDT |
| Last seen | 17:54 MDT |
| Duration | 8h 24m |
| Aircraft | N446UA |
| Max altitude | 36,050 ft |
| Distance tracked | 1,256 nm |
Punctuality, last 30 days
| Flights | 6 |
| On time | 2 (33%) |
| Average delay | +25 min |
| Worst delay | +53 min |
In the last 30 days UAL557 departed on time (within 15 minutes) on 2 of 6 flights (33%), with an average departure delay of +25 min and a worst delay of +53 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.