Flight

UAL1523 9 Sep 2026

UAL1523, operated by United Airlines, on 9 Sep 2026: Seattle Tacoma International (KSEA) to Washington Dulles International (KIAD). Scheduled and actual times are local to each airport (hover for UTC).

← 8 Sep 2026All UAL1523 flights10 Sep 2026 →

Flight

PlaneTrack receiver network
RouteKSEA SEATTLE TACOMA INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne08:18 PDT
Last seen15:42 EDT
Duration4h 23m
AircraftAA7F46
Max altitude35,000 ft
Distance tracked1,998 nm

Punctuality, last 30 days

Flights7
On time0 (0%)
Average delay+23 min
Worst delay+31 min

In the last 30 days UAL1523 departed on time (within 15 minutes) on 0 of 7 flights (0%), with an average departure delay of +23 min and a worst delay of +31 min.

UAL1523 flight history Full history CSV API access

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.