Flight
UAL1523 22 Sep 2026
UAL1523, operated by United Airlines, on 22 Sep 2026: Seattle Tacoma International (KSEA) to Washington Dulles International (KIAD). Scheduled and actual times are local to each airport (hover for UTC).
Flight
PlaneTrack receiver network| Route | KSEA SEATTLE TACOMA INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 08:45 PDT |
| Last seen | 17:06 EDT |
| Duration | 5h 20m |
| Aircraft | A12A7B |
| Max altitude | 35,000 ft |
| Distance tracked | 1,998 nm |
Punctuality, last 30 days
| Flights | 8 |
| On time | 1 (12%) |
| Average delay | +19 min |
| Worst delay | +30 min |
In the last 30 days UAL1523 departed on time (within 15 minutes) on 1 of 8 flights (12%), with an average departure delay of +19 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.