Flight

UAL421 26 Sep 2026

UAL421, operated by United Airlines, on 26 Sep 2026: Washington Dulles International (KIAD) to Chicago Ohare International (KORD), 2 legs. Scheduled and actual times are local to each airport (hover for UTC).

← 25 Sep 2026All UAL421 flights27 Sep 2026 →

Leg 1 of 2

FAA SWIM schedule
RouteKIAD WASHINGTON DULLES INTERNATIONAL → KORD CHICAGO OHARE INTERNATIONAL
StatusNo departure recorded
Scheduled departure22:18 EDT 25 Sep
AircraftN14511 A321
Max altitude35,025 ft

Leg 2 of 2

FAA SWIM schedule
RouteKDEN DENVER INTERNATIONAL → KIAD WASHINGTON DULLES INTERNATIONAL
StatusCompleted, departed on time (+14 min)
Scheduled departure15:45 MDT
Actual departure15:59 MDT on time
Actual arrival21:06 EDT
Duration3h 07m
AircraftN17550 B39M

Punctuality, last 30 days

Flights14
On time5 (36%)
Average delay+37 min
Worst delay+175 min

In the last 30 days UAL421 departed on time (within 15 minutes) on 5 of 14 flights (36%), with an average departure delay of +37 min and a worst delay of +175 min.

UAL421 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.