Flight
UAL1831 23 Dec 2025
UAL1831, operated by United Airlines, on 23 Dec 2025: 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).
Leg 1 of 2
PlaneTrack receiver network| Route | KATL THE WILLIAM B HARTSFIELD ATLANTA INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 14:45 EST |
| Last seen | 16:24 EST |
| Duration | 1h 39m |
| Aircraft | N23721 |
| Max altitude | 31,000 ft |
| Distance tracked | 463 nm |
Leg 2 of 2estimated
PlaneTrack receiver network| Route | KIAD WASHINGTON DULLES INTERNATIONAL → KEWR NEWARK LIBERTY INTERNATIONAL |
| Status | Completed (receiver network) |
| First seen airborne | 17:45 EST |
| Last seen | 18:58 EST |
| Duration | 1h 12m |
| Aircraft | N39416 |
| Max altitude | 21,025 ft |
| Distance tracked | 184 nm |
Punctuality, last 30 days
| Flights | 14 |
| On time | 3 (21%) |
| Average delay | +32 min |
| Worst delay | +92 min |
In the last 30 days UAL1831 departed on time (within 15 minutes) on 3 of 14 flights (21%), with an average departure delay of +32 min and a worst delay of +92 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.