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

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FLIGHT SCHEDULE
Non-Direct Flights:
Mon,Wed-Fri 08:15 Washington Dulles (IAD) 14:43 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737 MAX 9 (7M9) 8:28 Effective 2026-03-05 through 2026-03-12
Tue,Fri,Sun 08:15 Washington Dulles (IAD) 14:43 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737-900 (739) 8:28 Effective 2026-03-08 through 2026-03-27
Mon,Thu 08:15 Washington Dulles (IAD) 14:43 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737 MAX 9 (7M9) 8:28 Effective 2026-03-16 through 2026-03-23
Wed 08:15 Washington Dulles (IAD) 14:43 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737-700 (73G) 8:28 Operates only on 2026-03-18
Wed,Thu 08:15 Washington Dulles (IAD) 14:43 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737 MAX 9 (7M9) 8:28 Effective 2026-03-25 through 2026-03-26
Daily 08:15 Washington Dulles (IAD) 14:42 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737 MAX 9 (7M9) 8:27 Effective 2026-03-29 through 2026-04-29
Daily 08:15 Washington Dulles (IAD) 14:46 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737 MAX 9 (7M9) 8:31 Effective 2026-04-30 through 2026-05-20
Thu 08:22 Washington Dulles (IAD) 14:39 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737 MAX 8 (7M8) 8:17 Valid until 2026-01-01
Mon-Wed,Fri,Sun 08:22 Washington Dulles (IAD) 14:39 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737-800 (738) 8:17 Valid until 2026-01-05
Daily 08:25 Washington Dulles (IAD) 14:58 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737-800 (738) 8:33 Effective 2026-05-21 through 2026-10-24
Daily 08:25 Washington Dulles (IAD) 14:51 Denver (DEN) United Airlines UA 1789 1-stop Boeing 737-800 (738) 8:26 Effective from 2026-10-25
Sat 08:15 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 737 MAX 9 (7M9) 8:22 Operates only on 2026-02-21
Mon,Tue,Thu,Fri 08:36 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 737 MAX 9 (7M9) 8:01 Effective 2026-02-13 through 2026-02-27
Sat 08:36 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 737-900 (739) 8:01 Operates only on 2026-02-14
Sun 08:36 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 737-900 (739) 8:01 Effective 2026-02-15 through 2026-03-01
Wed 08:36 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Airbus A319 (319) 8:01 Operates only on 2026-02-18
Wed 08:36 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 737 MAX 8 (7M8) 8:01 Effective 2026-02-25 through 2026-03-04
Mon,Tue,Sat 08:36 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 737 MAX 9 (7M9) 8:01 Effective 2026-02-28 through 2026-03-03
Thu 08:40 Washington Dulles (IAD) 14:37 Denver (DEN) United Airlines UA 1999 1-stop Boeing 767-400 (764) 7:57 Operates only on 2026-02-12
Mon,Tue,Thu-Sun 17:12 Washington Dulles (IAD) 23:07 Denver (DEN) United Airlines UA 2463 1-stop Boeing 737 MAX 9 (7M9) 7:55 Valid until 2026-01-04
Sat 07:00 Washington Dulles (IAD) 14:45 Denver (DEN) Southwest Airlines WN 1010 2-stop Boeing 737 MAX 8 (7M8) 9:45 Effective 2026-01-10 through 2026-02-07
Sat,Sun 08:15 Washington Dulles (IAD) 19:31 Denver (DEN) United Airlines UA 2202 2-stop Boeing 737 MAX 8 (7M8) 13:16 Effective 2026-05-23 through 2026-09-20
Daily 08:15 Washington Dulles (IAD) 19:30 Denver (DEN) United Airlines UA 2396 2-stop Boeing 737 MAX 8 (7M8) 13:15 Effective 2026-05-21 through 2026-08-17
Daily 08:15 Washington Dulles (IAD) 19:10 Denver (DEN) United Airlines UA 2396 2-stop Boeing 737 MAX 8 (7M8) 12:55 Effective from 2026-10-25
Direct Codeshare Flights:
Mon 09:47 Washington Dulles (IAD) 12:00 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:13 Operates only on 2026-01-05 Codeshare flight, operated by United Airlines.(UA 2064)
Sat 09:47 Washington Dulles (IAD) 12:00 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:13 Operates only on 2026-03-07 Codeshare flight, operated by United Airlines.(UA 1865)
Sat 10:02 Washington Dulles (IAD) 12:15 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:13 Operates only on 2026-01-10 Codeshare flight, operated by United Airlines.(UA 2064)
Mon 10:02 Washington Dulles (IAD) 12:15 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:13 Operates only on 2026-01-26 Codeshare flight, operated by United Airlines.(UA 2064)
Wed,Sat 10:02 Washington Dulles (IAD) 12:15 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:13 Effective 2026-02-07 through 2026-02-11 Codeshare flight, operated by United Airlines.(UA 2064)
Mon 10:02 Washington Dulles (IAD) 12:14 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 757-300 (753) 4:12 Operates only on 2026-02-09 Codeshare flight, operated by United Airlines.(UA 2064)
Tue,Sun 12:35 Washington Dulles (IAD) 14:46 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:11 Effective 2026-01-06 through 2026-01-11 Codeshare flight, operated by United Airlines.(UA 754)
Sat,Sun 12:35 Washington Dulles (IAD) 14:46 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:11 Effective 2026-01-17 through 2026-01-18 Codeshare flight, operated by United Airlines.(UA 754)
Tue,Fri 12:35 Washington Dulles (IAD) 14:46 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:11 Effective 2026-01-27 through 2026-01-30 Codeshare flight, operated by United Airlines.(UA 754)
Tue,Fri,Sun 12:35 Washington Dulles (IAD) 14:46 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:11 Effective 2026-02-06 through 2026-02-10 Codeshare flight, operated by United Airlines.(UA 754)
Fri 12:40 Washington Dulles (IAD) 14:53 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:13 Operates only on 2026-01-02 Codeshare flight, operated by United Airlines.(UA 1587)
Fri 12:40 Washington Dulles (IAD) 14:53 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Airbus A321neo (32Q) 4:13 Effective 2026-02-20 through 2026-02-27 Codeshare flight, operated by United Airlines.(UA 2741)
Sun 12:40 Washington Dulles (IAD) 14:51 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:11 Effective 2026-03-08 through 2026-03-22 Codeshare flight, operated by United Airlines.(UA 1587)
Daily 12:40 Washington Dulles (IAD) 14:46 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:06 Effective 2026-03-29 through 2026-04-29 Codeshare flight, operated by United Airlines.(UA 1587)
Fri 12:45 Washington Dulles (IAD) 14:55 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 757-200 (752) 4:10 Operates only on 2026-03-06 Codeshare flight, operated by United Airlines.(UA 1587)
Mon-Sat 12:45 Washington Dulles (IAD) 14:55 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 757-200 (752) 4:10 Effective 2026-03-09 through 2026-03-28 Codeshare flight, operated by United Airlines.(UA 1587)
Daily 12:45 Washington Dulles (IAD) 14:43 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 3:58 Effective from 2026-04-30 Codeshare flight, operated by United Airlines.(UA 1587)
Mon,Wed,Sat 22:10 Washington Dulles (IAD) 00:15 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:05 Valid until 2026-01-03 Codeshare flight, operated by United Airlines.(UA 495) The flight arrives 1 day after departure.
Mon,Wed,Thu,Sat 22:25 Washington Dulles (IAD) 00:30 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:05 Effective 2026-02-12 through 2026-02-18 Codeshare flight, operated by United Airlines.(UA 495) The flight arrives 1 day after departure.
Mon,Wed,Sat 22:25 Washington Dulles (IAD) 00:30 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 4:05 Effective 2026-02-21 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 495) The flight arrives 1 day after departure.
Mon,Wed,Thu 22:32 Washington Dulles (IAD) 00:30 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 3:58 Effective 2026-01-07 through 2026-01-22 Codeshare flight, operated by United Airlines.(UA 495) The flight arrives 1 day after departure.
Wed,Sat 22:32 Washington Dulles (IAD) 00:30 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 3:58 Effective 2026-01-24 through 2026-01-31 Codeshare flight, operated by United Airlines.(UA 495) The flight arrives 1 day after departure.
Mon,Wed 22:32 Washington Dulles (IAD) 00:30 Denver (DEN) Ethiopian Airlines ET 1364 Non-stop Boeing 737-900 (739) 3:58 Effective 2026-02-02 through 2026-02-04 Codeshare flight, operated by United Airlines.(UA 495) The flight arrives 1 day after departure.
Daily 15:58 Washington Dulles (IAD) 18:14 Denver (DEN) Avianca AV 2041 Non-stop Boeing 737-900 (739) 4:16 Effective 2026-02-12 through 2026-03-04 Codeshare flight, operated by United Airlines.(UA 484)
Mon-Thu,Sat,Sun 16:00 Washington Dulles (IAD) 18:13 Denver (DEN) Avianca AV 2041 Non-stop Boeing 737-900 (739) 4:13 Valid until 2026-01-05 Codeshare flight, operated by United Airlines.(UA 2852)
Fri 16:00 Washington Dulles (IAD) 18:13 Denver (DEN) Avianca AV 2041 Non-stop Boeing 737 MAX 9 (7M9) 4:13 Operates only on 2026-01-02 Codeshare flight, operated by United Airlines.(UA 2852)

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A domestic route departing from the Washington Dulles airport (IAD) and arriving at Denver airport (DEN).
The flight distance is 1448 miles, or 2331 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 3:35 and 4:21.

Return (DEN-IAD) flights

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

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FLIGHT SCHEDULE

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:43

Denver (DEN)

Effective 2026-03-05 through 2026-03-12

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 8:28, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:43

Denver (DEN)

Effective 2026-03-08 through 2026-03-27

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 8:28, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:43

Denver (DEN)

Effective 2026-03-16 through 2026-03-23

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 8:28, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:43

Denver (DEN)

Operates only on 2026-03-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:28, 1-stop
Boeing 737-700 (73G)

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:43

Denver (DEN)

Effective 2026-03-25 through 2026-03-26

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 8:28, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:42

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:27, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1789

08:15

Washington Dulles (IAD)

14:46

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:31, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1789

08:22

Washington Dulles (IAD)

14:39

Denver (DEN)

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 8:17, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1789

08:22

Washington Dulles (IAD)

14:39

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu
-

Fri

Sat
-

Sun

Duration: 8:17, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1789

08:25

Washington Dulles (IAD)

14:58

Denver (DEN)

Effective 2026-05-21 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:33, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1789

08:25

Washington Dulles (IAD)

14:51

Denver (DEN)

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 8:26, 1-stop
Boeing 737-800 (738)

Non-Direct Flights:

United Airlines UA1999

08:15

Washington Dulles (IAD)

14:37

Denver (DEN)

Operates only on 2026-02-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:22, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1999

08:36

Washington Dulles (IAD)

14:37

Denver (DEN)

Effective 2026-02-13 through 2026-02-27

Mon

Tue

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 8:01, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1999

08:36

Washington Dulles (IAD)

14:37

Denver (DEN)

Operates only on 2026-02-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:01, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA1999

08:36

Washington Dulles (IAD)

14:37

Denver (DEN)

Effective 2026-02-15 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:01, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA1999

08:36

Washington Dulles (IAD)

14:37

Denver (DEN)

Operates only on 2026-02-18

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:01, 1-stop
Airbus A319 (319)

Non-Direct Flights:

United Airlines UA1999

08:36

Washington Dulles (IAD)

14:37

Denver (DEN)

Effective 2026-02-25 through 2026-03-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 8:01, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA1999

08:36

Washington Dulles (IAD)

14:37

Denver (DEN)

Effective 2026-02-28 through 2026-03-03

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 8:01, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

United Airlines UA1999

08:40

Washington Dulles (IAD)

14:37

Denver (DEN)

Operates only on 2026-02-12

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 7:57, 1-stop
Boeing 767-400 (764)

Non-Direct Flights:

United Airlines UA2463

17:12

Washington Dulles (IAD)

23:07

Denver (DEN)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 7:55, 1-stop
Boeing 737 MAX 9 (7M9)

Non-Direct Flights:

Southwest Airlines WN1010

07:00

Washington Dulles (IAD)

14:45

Denver (DEN)

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 9:45, 2-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA2202

08:15

Washington Dulles (IAD)

19:31

Denver (DEN)

Effective 2026-05-23 through 2026-09-20

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 13:16, 2-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA2396

08:15

Washington Dulles (IAD)

19:30

Denver (DEN)

Effective 2026-05-21 through 2026-08-17

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 13:15, 2-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

United Airlines UA2396

08:15

Washington Dulles (IAD)

19:10

Denver (DEN)

Effective from 2026-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 12:55, 2-stop
Boeing 737 MAX 8 (7M8)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

09:47

Washington Dulles (IAD)

12:00

Denver (DEN)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2064)

Duration: 4:13, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

09:47

Washington Dulles (IAD)

12:00

Denver (DEN)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 1865)

Duration: 4:13, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

10:02

Washington Dulles (IAD)

12:15

Denver (DEN)

Operates only on 2026-01-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2064)

Duration: 4:13, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

10:02

Washington Dulles (IAD)

12:15

Denver (DEN)

Operates only on 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2064)

Duration: 4:13, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

10:02

Washington Dulles (IAD)

12:15

Denver (DEN)

Effective 2026-02-07 through 2026-02-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2064)

Duration: 4:13, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

10:02

Washington Dulles (IAD)

12:14

Denver (DEN)

Operates only on 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2064)

Duration: 4:12, non-stop
Boeing 757-300 (753)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:35

Washington Dulles (IAD)

14:46

Denver (DEN)

Effective 2026-01-06 through 2026-01-11

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 754)

Duration: 4:11, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:35

Washington Dulles (IAD)

14:46

Denver (DEN)

Effective 2026-01-17 through 2026-01-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 754)

Duration: 4:11, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:35

Washington Dulles (IAD)

14:46

Denver (DEN)

Effective 2026-01-27 through 2026-01-30

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 754)

Duration: 4:11, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:35

Washington Dulles (IAD)

14:46

Denver (DEN)

Effective 2026-02-06 through 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 754)

Duration: 4:11, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:40

Washington Dulles (IAD)

14:53

Denver (DEN)

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1587)

Duration: 4:13, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:40

Washington Dulles (IAD)

14:53

Denver (DEN)

Effective 2026-02-20 through 2026-02-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2741)

Duration: 4:13, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:40

Washington Dulles (IAD)

14:51

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 1587)

Duration: 4:11, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:40

Washington Dulles (IAD)

14:46

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1587)

Duration: 4:06, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:45

Washington Dulles (IAD)

14:55

Denver (DEN)

Operates only on 2026-03-06

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 1587)

Duration: 4:10, non-stop
Boeing 757-200 (752)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:45

Washington Dulles (IAD)

14:55

Denver (DEN)

Effective 2026-03-09 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 1587)

Duration: 4:10, non-stop
Boeing 757-200 (752)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

12:45

Washington Dulles (IAD)

14:43

Denver (DEN)

Effective from 2026-04-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1587)

Duration: 3:58, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Ethiopian Airlines ET1364

22:10

Washington Dulles (IAD)

00:15(+1)

Denver (DEN)

Valid until 2026-01-03

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 495)

Duration: 4:05, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Ethiopian Airlines ET1364

22:25

Washington Dulles (IAD)

00:30(+1)

Denver (DEN)

Effective 2026-02-12 through 2026-02-18

Mon

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 495)

Duration: 4:05, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Ethiopian Airlines ET1364

22:25

Washington Dulles (IAD)

00:30(+1)

Denver (DEN)

Effective 2026-02-21 through 2026-03-04

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 495)

Duration: 4:05, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Ethiopian Airlines ET1364

22:32

Washington Dulles (IAD)

00:30(+1)

Denver (DEN)

Effective 2026-01-07 through 2026-01-22

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 495)

Duration: 3:58, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Ethiopian Airlines ET1364

22:32

Washington Dulles (IAD)

00:30(+1)

Denver (DEN)

Effective 2026-01-24 through 2026-01-31

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 495)

Duration: 3:58, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Ethiopian Airlines ET1364

22:32

Washington Dulles (IAD)

00:30(+1)

Denver (DEN)

Effective 2026-02-02 through 2026-02-04

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 495)

Duration: 3:58, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Direct Codeshare Flights:

Avianca AV2041

15:58

Washington Dulles (IAD)

18:14

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 484)

Duration: 4:16, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Avianca AV2041

16:00

Washington Dulles (IAD)

18:13

Denver (DEN)

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2852)

Duration: 4:13, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Avianca AV2041

16:00

Washington Dulles (IAD)

18:13

Denver (DEN)

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2852)

Duration: 4:13, non-stop
Boeing 737 MAX 9 (7M9)

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A domestic route departing from the Washington Dulles airport (IAD) and arriving at Denver airport (DEN).
The flight distance is 1448 miles, or 2331 km.
The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 3:35 and 4:21.

Return (DEN-IAD) flights

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