Flight

UAL2331 10 May 2026

UAL2331, operated by United Airlines, on 10 May 2026: Waukegan Rgnl (KUGN) to Washington Dulles International (KIAD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).

← 9 May 2026All UAL2331 flights11 May 2026 →

Leg 1 of 2estimated

PlaneTrack receiver network
RouteKUGN WAUKEGAN RGNL → KIAD WASHINGTON DULLES INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne19:00 CDT 9 May
Last seen11:48 EDT
Duration15h 48m
AircraftA0B840
Max altitude35,250 ft
Distance tracked510 nm

Leg 2 of 2

PlaneTrack receiver network
RouteKIAD WASHINGTON DULLES INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL
StatusCompleted (receiver network)
First seen airborne13:28 EDT
Last seen13:58 CDT
Duration1h 29m
AircraftN472UA
Max altitude26,025 ft
Distance tracked510 nm

Punctuality, last 30 days

Flights24
On time20 (83%)
Average delay-371 min
Worst delay+174 min

In the last 30 days UAL2331 departed on time (within 15 minutes) on 20 of 24 flights (83%), with an average departure delay of -371 min and a worst delay of +174 min.

UAL2331 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.