All airlines flying from Denver (DEN) to Washington Dulles (IAD).

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FLIGHT SCHEDULE
Direct Flights:
Sat 07:45 Denver (DEN) 13:12 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Airbus A321neo (32Q) 3:27 Effective 2026-01-17 through 2026-02-07
Mon-Thu 07:45 Denver (DEN) 13:05 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737-900 (739) 3:20 Effective 2026-03-05 through 2026-03-26
Fri,Sat 07:45 Denver (DEN) 13:05 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737 MAX 9 (7M9) 3:20 Effective 2026-03-06 through 2026-03-28
Sun 07:45 Denver (DEN) 13:07 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Airbus A321neo (32Q) 3:22 Effective 2026-03-15 through 2026-03-22
Daily 07:45 Denver (DEN) 13:14 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737-900 (739) 3:29 Effective 2026-03-29 through 2026-04-29
Daily 07:50 Denver (DEN) 13:16 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737-900 (739) 3:26 Valid until 2026-01-05
Mon-Fri,Sun 07:50 Denver (DEN) 13:17 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737-900 (739) 3:27 Effective 2026-01-07 through 2026-02-03
Wed 07:50 Denver (DEN) 13:19 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Airbus A321neo (32Q) 3:29 Operates only on 2026-02-04
Mon-Fri,Sun 07:50 Denver (DEN) 13:17 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737-900 (739) 3:27 Effective 2026-02-05 through 2026-02-11
Sun 07:52 Denver (DEN) 13:14 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Airbus A321neo (32Q) 3:22 Operates only on 2026-03-08
Daily 08:10 Denver (DEN) 13:27 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Airbus A321neo (32Q) 3:17 Effective 2026-04-30 through 2026-05-20
Daily 08:10 Denver (DEN) 13:27 Washington Dulles (IAD) United Airlines UA 1101 Non-stop Boeing 737-900 (739) 3:17 Effective from 2026-05-21
Daily 06:00 Denver (DEN) 11:24 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Airbus A321neo (32Q) 3:24 Valid until 2026-01-05
Mon,Thu-Sun 06:00 Denver (DEN) 11:20 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Boeing 737 MAX 9 (7M9) 3:20 Effective 2026-02-12 through 2026-03-02
Daily 06:00 Denver (DEN) 11:29 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Boeing 737-900 (739) 3:29 Effective 2026-03-29 through 2026-04-29
Daily 06:00 Denver (DEN) 11:14 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Boeing 737-900 (739) 3:14 Effective 2026-04-30 through 2026-10-24
Mon,Thu,Fri 06:10 Denver (DEN) 11:30 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Boeing 757-200 (752) 3:20 Effective 2026-03-05 through 2026-03-13
Sat 06:10 Denver (DEN) 11:32 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Airbus A321neo (32Q) 3:22 Operates only on 2026-03-07
Sun 06:10 Denver (DEN) 11:30 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Boeing 737-900 (739) 3:20 Effective 2026-03-08 through 2026-03-22
Mon,Thu-Sat 06:10 Denver (DEN) 11:30 Washington Dulles (IAD) United Airlines UA 1279 Non-stop Boeing 757-200 (752) 3:20 Effective 2026-03-14 through 2026-03-28
Sun 11:10 Denver (DEN) 16:20 Washington Dulles (IAD) Southwest Airlines WN 1397 Non-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2026-03-08 through 2026-04-05
Sat 17:05 Denver (DEN) 22:25 Washington Dulles (IAD) Southwest Airlines WN 1514 Non-stop Boeing 737-800 (73H) 3:20 Effective 2026-08-08 through 2026-09-26
Tue,Wed 17:55 Denver (DEN) 23:25 Washington Dulles (IAD) Southwest Airlines WN 1514 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 18:00 Denver (DEN) 23:30 Washington Dulles (IAD) Southwest Airlines WN 1514 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-08-06 through 2026-09-28
Sun 18:50 Denver (DEN) 00:10 Washington Dulles (IAD) Southwest Airlines WN 1514 Non-stop Boeing 737-800 (73H) 3:20 Effective 2026-08-09 through 2026-09-27 The flight arrives 1 day after departure.
Mon,Tue,Fri,Sun 07:45 Denver (DEN) 13:05 Washington Dulles (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:20 Valid until 2026-01-04
Mon 07:50 Denver (DEN) 13:10 Washington Dulles (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Operates only on 2026-01-05
Sat 10:20 Denver (DEN) 15:35 Washington Dulles (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Operates only on 2026-01-03
Wed,Thu 17:00 Denver (DEN) 22:10 Washington Dulles (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:10 Valid until 2026-01-01
Daily 11:15 Denver (DEN) 16:46 Washington Dulles (IAD) United Airlines UA 1877 Non-stop Boeing 737 MAX 9 (7M9) 3:31 Effective 2026-03-29 through 2026-04-29
Daily 11:15 Denver (DEN) 16:42 Washington Dulles (IAD) United Airlines UA 1877 Non-stop Boeing 737-900 (739) 3:27 Effective 2026-06-25 through 2026-08-17
Daily 11:15 Denver (DEN) 16:40 Washington Dulles (IAD) United Airlines UA 1877 Non-stop Boeing 757-300 (753) 3:25 Effective from 2026-10-25
Daily 11:22 Denver (DEN) 16:47 Washington Dulles (IAD) United Airlines UA 1877 Non-stop Boeing 737 MAX 9 (7M9) 3:25 Effective 2026-04-30 through 2026-05-20
Sun 10:25 Denver (DEN) 15:45 Washington Dulles (IAD) Southwest Airlines WN 1884 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2026-04-12 through 2026-05-17
Sun 10:25 Denver (DEN) 15:45 Washington Dulles (IAD) Southwest Airlines WN 1884 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Operates only on 2026-05-31
Mon,Thu,Fri 10:30 Denver (DEN) 15:50 Washington Dulles (IAD) Southwest Airlines WN 1884 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2026-04-09 through 2026-06-01
Sun 11:00 Denver (DEN) 16:15 Washington Dulles (IAD) Southwest Airlines WN 1884 Non-stop Boeing 737-800 (73H) 3:15 Operates only on 2026-05-24
Sat 11:10 Denver (DEN) 16:25 Washington Dulles (IAD) Southwest Airlines WN 1884 Non-stop Boeing 737-800 (73H) 3:15 Effective 2026-04-11 through 2026-05-30
Tue,Wed 11:30 Denver (DEN) 16:50 Washington Dulles (IAD) Southwest Airlines WN 1884 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2026-04-07 through 2026-06-03
Daily 23:50 Denver (DEN) 05:08 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737-900 (739) 3:18 Effective from 2026-04-30 The flight arrives 1 day after departure.
Daily 23:59 Denver (DEN) 05:19 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 777 (777) 3:20 Valid until 2026-01-05 The flight arrives 1 day after departure.
Mon,Wed-Sun 23:59 Denver (DEN) 05:21 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737-900 (739) 3:22 Effective 2026-01-07 through 2026-02-06 The flight arrives 1 day after departure.
Sat 23:59 Denver (DEN) 05:21 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737 MAX 9 (7M9) 3:22 Operates only on 2026-02-07 The flight arrives 1 day after departure.
Mon,Wed,Sun 23:59 Denver (DEN) 05:21 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737-900 (739) 3:22 Effective 2026-02-08 through 2026-02-11 The flight arrives 1 day after departure.
Mon,Wed-Sun 23:59 Denver (DEN) 05:18 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Airbus A321neo (32Q) 3:19 Effective 2026-02-12 through 2026-03-04 The flight arrives 1 day after departure.
Wed-Fri,Sun 23:59 Denver (DEN) 05:17 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737-900 (739) 3:18 Effective 2026-03-05 through 2026-03-27 The flight arrives 1 day after departure.
Sat 23:59 Denver (DEN) 06:17 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Operates only on 2026-03-07 The flight arrives 1 day after departure.
Mon,Tue 23:59 Denver (DEN) 05:17 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 757-200 (752) 3:18 Effective 2026-03-09 through 2026-03-24 The flight arrives 1 day after departure.
Sat 23:59 Denver (DEN) 05:17 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737 MAX 9 (7M9) 3:18 Effective 2026-03-14 through 2026-03-28 The flight arrives 1 day after departure.
Daily 23:59 Denver (DEN) 05:27 Washington Dulles (IAD) United Airlines UA 1924 Non-stop Boeing 737 MAX 9 (7M9) 3:28 Effective 2026-03-29 through 2026-04-29 The flight arrives 1 day after departure.

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Parallax here DEN-IAD

1 2 3 4 5 6 7 8

A domestic route departing from the Denver airport (DEN) and arriving at Washington Dulles airport (IAD).
The flight distance is 1448 miles, or 2331 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:05 and 3:35.

Return (IAD-DEN) flights

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All airlines flying from Denver (DEN) to Washington Dulles (IAD).

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FLIGHT SCHEDULE

Direct Flights:

United Airlines UA1101

07:45

Denver (DEN)

13:12

Washington Dulles (IAD)

Effective 2026-01-17 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:27, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1101

07:45

Denver (DEN)

13:05

Washington Dulles (IAD)

Effective 2026-03-05 through 2026-03-26

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:20, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1101

07:45

Denver (DEN)

13:05

Washington Dulles (IAD)

Effective 2026-03-06 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 3:20, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

United Airlines UA1101

07:45

Denver (DEN)

13:07

Washington Dulles (IAD)

Effective 2026-03-15 through 2026-03-22

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:22, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1101

07:45

Denver (DEN)

13:14

Washington Dulles (IAD)

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:29, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1101

07:50

Denver (DEN)

13:16

Washington Dulles (IAD)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:26, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1101

07:50

Denver (DEN)

13:17

Washington Dulles (IAD)

Effective 2026-01-07 through 2026-02-03

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:27, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1101

07:50

Denver (DEN)

13:19

Washington Dulles (IAD)

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:29, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1101

07:50

Denver (DEN)

13:17

Washington Dulles (IAD)

Effective 2026-02-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:27, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1101

07:52

Denver (DEN)

13:14

Washington Dulles (IAD)

Operates only on 2026-03-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:22, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1101

08:10

Denver (DEN)

13:27

Washington Dulles (IAD)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:17, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1101

08:10

Denver (DEN)

13:27

Washington Dulles (IAD)

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:17, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1279

06:00

Denver (DEN)

11:24

Washington Dulles (IAD)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:24, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1279

06:00

Denver (DEN)

11:20

Washington Dulles (IAD)

Effective 2026-02-12 through 2026-03-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 3:20, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

United Airlines UA1279

06:00

Denver (DEN)

11:29

Washington Dulles (IAD)

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:29, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1279

06:00

Denver (DEN)

11:14

Washington Dulles (IAD)

Effective 2026-04-30 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:14, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1279

06:10

Denver (DEN)

11:30

Washington Dulles (IAD)

Effective 2026-03-05 through 2026-03-13

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:20, non-stop
Boeing 757-200 (752)

Direct Flights:

United Airlines UA1279

06:10

Denver (DEN)

11:32

Washington Dulles (IAD)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:22, non-stop
Airbus A321neo (32Q)

Direct Flights:

United Airlines UA1279

06:10

Denver (DEN)

11:30

Washington Dulles (IAD)

Effective 2026-03-08 through 2026-03-22

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1279

06:10

Denver (DEN)

11:30

Washington Dulles (IAD)

Effective 2026-03-14 through 2026-03-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

Duration: 3:20, non-stop
Boeing 757-200 (752)

Direct Flights:

Southwest Airlines WN1397

11:10

Denver (DEN)

16:20

Washington Dulles (IAD)

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1514

17:05

Denver (DEN)

22:25

Washington Dulles (IAD)

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1514

17:55

Denver (DEN)

23:25

Washington Dulles (IAD)

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1514

18:00

Denver (DEN)

23:30

Washington Dulles (IAD)

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1514

18:50

Denver (DEN)

00:10(+1)

Washington Dulles (IAD)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN1762

07:45

Denver (DEN)

13:05

Washington Dulles (IAD)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1762

07:50

Denver (DEN)

13:10

Washington Dulles (IAD)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1762

10:20

Denver (DEN)

15:35

Washington Dulles (IAD)

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1762

17:00

Denver (DEN)

22:10

Washington Dulles (IAD)

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

United Airlines UA1877

11:15

Denver (DEN)

16:46

Washington Dulles (IAD)

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:31, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

United Airlines UA1877

11:15

Denver (DEN)

16:42

Washington Dulles (IAD)

Effective 2026-06-25 through 2026-08-17

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:27, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1877

11:15

Denver (DEN)

16:40

Washington Dulles (IAD)

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:25, non-stop
Boeing 757-300 (753)

Direct Flights:

United Airlines UA1877

11:22

Denver (DEN)

16:47

Washington Dulles (IAD)

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:25, non-stop
Boeing 737 MAX 9 (7M9)

Direct Flights:

Southwest Airlines WN1884

10:25

Denver (DEN)

15:45

Washington Dulles (IAD)

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1884

10:25

Denver (DEN)

15:45

Washington Dulles (IAD)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1884

10:30

Denver (DEN)

15:50

Washington Dulles (IAD)

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1884

11:00

Denver (DEN)

16:15

Washington Dulles (IAD)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1884

11:10

Denver (DEN)

16:25

Washington Dulles (IAD)

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1884

11:30

Denver (DEN)

16:50

Washington Dulles (IAD)

Effective 2026-04-07 through 2026-06-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1924

23:50

Denver (DEN)

05:08(+1)

Washington Dulles (IAD)

Effective from 2026-04-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:18, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:19(+1)

Washington Dulles (IAD)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:20, non-stop
Boeing 777 (777)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:21(+1)

Washington Dulles (IAD)

Effective 2026-01-07 through 2026-02-06

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 3:22, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:21(+1)

Washington Dulles (IAD)

Operates only on 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:22, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:21(+1)

Washington Dulles (IAD)

Effective 2026-02-08 through 2026-02-11

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:22, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:18(+1)

Washington Dulles (IAD)

Effective 2026-02-12 through 2026-03-04

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 3:19, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:17(+1)

Washington Dulles (IAD)

Effective 2026-03-05 through 2026-03-27

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:18, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

06:17(+1)

Washington Dulles (IAD)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:17(+1)

Washington Dulles (IAD)

Effective 2026-03-09 through 2026-03-24

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:18, non-stop
Boeing 757-200 (752)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:17(+1)

Washington Dulles (IAD)

Effective 2026-03-14 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:18, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Direct Flights:

United Airlines UA1924

23:59

Denver (DEN)

05:27(+1)

Washington Dulles (IAD)

Effective 2026-03-29 through 2026-04-29

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 3:28, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

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A domestic route departing from the Denver airport (DEN) and arriving at Washington Dulles airport (IAD).
The flight distance is 1448 miles, or 2331 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 3:05 and 3:35.

Return (IAD-DEN) flights

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