United UA400 Flight Status Tracker
UA400 is a domestic flight operated by United. UA400 is departing from Denver (DEN), United States and arriving at Washington (IAD), United States. The flight distance is about 2338.08 km or 1452.81 miles and flight time is 3 hours 22 minutes. Get the latest status of UA400 / UAL400 here.
Update on April 2, 2026, 12:37 p.m.
Lastest Status
Departed On time
DEN
Departure
Denver International Airport
Scheduled Departure:
06:00
Actual Departure:
05:56
Departure Terminal:
2 Gate None
Distance:
2338.08 km / 1452.81 miles or 1262.46 nautical miles.
IAD
Arrival
Washington Dulles Airport
Scheduled Arrival:
11:39
Estimate Arrival:
11:27
Arrival Terminal:
3 Gate None
Flight UA400 detail information
- Type Domestic Flight
- Route Departure Denver (DEN), United States and arriving at Washington (IAD), United States
- Airlines United (UA)
- Aircraft Boeing 737-900
- Flight Duration 3 hours 22 minutes
- Flight Distance 2338.08 km /1452.81 miles
- Operating Days Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
UA400 Airports
Departures
- Airport: Denver International Airport, United States
- ICAO Code: DEN
- DEN Current time: 06:41 02-Apr-2026
Arrivals
- Airport: Washington Dulles Airport, United States
- ICAO Code: IAD
- IAD Current time: 08:41 02-Apr-2026