Flight

UAL1831 29 Sep 2026

UAL1831, operated by United Airlines, on 29 Sep 2026: The William B Hartsfield Atlanta International (KATL) to Washington Dulles International (KIAD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).

← 28 Sep 2026All UAL1831 flights30 Sep 2026 →

Leg 1 of 2

FAA SWIM schedule
RouteKATL THE WILLIAM B HARTSFIELD ATLANTA INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL
StatusCompleted, departure delayed +28 min
Scheduled departure14:40 EDT
Actual departure15:08 EDT delayed +28 min
Actual arrival16:27 EDT
Duration1h 19m
AircraftN26210 B738
Max altitude35,000 ft
Distance tracked463 nm

Leg 2 of 2

FAA SWIM schedule
RouteKIAD WASHINGTON DULLES INTERNATIONAL → KEWR NEWARK LIBERTY INTERNATIONAL
StatusCompleted, departure delayed +48 min
Scheduled departure17:50 EDT
Actual departure18:38 EDT delayed +48 min
Actual arrival19:18 EDT
Duration0h 40m
AircraftN77430 B739
Max altitude21,025 ft
Distance tracked184 nm

Punctuality, last 30 days

Flights13
On time1 (8%)
Average delay+40 min
Worst delay+79 min

In the last 30 days UAL1831 departed on time (within 15 minutes) on 1 of 13 flights (8%), with an average departure delay of +40 min and a worst delay of +79 min.

UAL1831 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.