Flight
UAL1877 23 Sep 2026
UAL1877, operated by United Airlines, on 23 Sep 2026: Denver International (KDEN) to Seattle Tacoma International (KSEA). Scheduled and actual times are local to each airport (hover for UTC).
Flightestimated
PlaneTrack receiver network| Route | KDEN DENVER INTERNATIONAL → KSEA SEATTLE TACOMA INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 07:02 MDT |
| Last seen | 11:46 PDT |
| Duration | 5h 43m |
| Aircraft | N37267 |
| Max altitude | 38,000 ft |
| Distance tracked | 888 nm |
Punctuality, last 30 days
| Flights | 7 |
| On time | 5 (71%) |
| Average delay | +14 min |
| Worst delay | +39 min |
In the last 30 days UAL1877 departed on time (within 15 minutes) on 5 of 7 flights (71%), with an average departure delay of +14 min and a worst delay of +39 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.