🇺🇸 IAD
Dulles
1450 mi
DEN 🇺🇸
Denver

Dulles to Denver Flights

Washington Dulles International Airport Denver International Airport 2 airlines

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The Dulles to Denver route connects Washington Dulles International Airport (IAD) in US with Denver International Airport (DEN) in US. This medium-haul flight covers approximately 1450 miles (2334 km) with a typical flight time of 3h 19m. This route is served by 2 airlines: United, Southwest. AirportRoutes has tracked 29 unique flight numbers on this route.

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Departure Airport

Washington Dulles International Airport

ICAO Code:
KIAD
IATA Code:
IAD
City:
🇺🇸 Dulles
Country:
US
Elevation:
312 ft

Destination Airport

Denver International Airport

ICAO Code:
KDEN
IATA Code:
DEN
City:
🇺🇸 Denver
Country:
US
Elevation:
5431 ft

2

Operators

29

Tracked Flights

1450

Miles

3h 19m

Flight Duration

Route Map

Great Circle
Flight route map from Dulles to Denver
Map data © Mapbox © OpenStreetMap contributors

Operating Airlines

Airline ICAO IATA
United UAL UA
Southwest SWA WN

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 36 16%
Tuesday 34 15%
Wednesday 37 17%
Thursday 31 14%
Friday 25 11%
Saturday 28 13%
Sunday 30 14%

Pattern Analysis

29 Tracked Flights:
Data Points: 221
API observations used to build this analysis
Weekdays: 163 flights
Weekend: 58 flights
Business Route More active on weekdays

All Flight Routes

2 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
Southwest
SWA / WN
B38M 06:20 6:20 AM (Representative)
M T W T F S S
Jul 2, 2026 Active
United
UAL / UA
A21N 08:15 8:15 AM (Representative)
M T W T F S S
Jul 2, 2026 Active
Total Routes: 2
Active Routes: 2
Unique Airlines: 2
Aircraft Types: 2

Spotted Departure Times

Departure Time Operator ICAO IATA
06:20 6:20 AM Southwest SWA WN
08:15 8:15 AM United UAL UA

Time Information

Times are shown in the departure airport's local timezone (KIAD - America/New_York).

Total Departure Times: 2
Time Range:
06:20 - 08:15
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.