UAL1523

Flight number

UAL1523

Airline

United Airlines (UAL)

Route

Seattle–Tacoma International Airport (SEA/KSEA) → Washington Dulles International Airport (IAD/KIAD)

Observed take-off

2026-09-28 15:42 UTC

Observed landing

2026-09-28 20:13 UTC

Aircraft

N37540 · B39M

Positions recorded

5078

Source: observations by the map.flights community network of ADS-B receivers; times in UTC.