Flight

UA421 (UAL421)

Route

DENIAD

Status

Scheduled

United flight UA421 from Denver International Airport to Washington Dulles Airport is scheduled to depart on 29 Oct 2026 at 16:10 and arrive at 21:30 local time.

Status:Scheduled

Refresh

Other UA421 flights

Multiple flights operate under the UA421 flight number.

FromToDepartsArrivesStatus

Departure

Departs from	Denver International (DEN)
Date	Thu 29 Oct
Departs	16:10
Terminal	Not available
Gate	B25
Check-in desk	Not available

Arrival

Arrives at	Washington Dulles (IAD)
Date	Thu 29 Oct
Arrives	21:30
Terminal	Not available
Gate	D1
Luggage belt	1

Track another flight

Millions of cheap flights. One simple search.

Return selected

origin

Enter the city you're flying from, or choose from the options below

Include nearby airports

selected

destination

. Enter your destination, or choose from the options below