Southwest Airlines flights from Denver (DEN) to Dulles, Washington (IAD).

FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 13:10 Denver (DEN) 18:25 Dulles, Washington (IAD) Southwest Airlines WN 360 Non-stop Boeing 737-700 (73W) 3:15 Effective 2025-06-10 through 2025-07-30
Fri 16:50 Denver (DEN) 22:10 Dulles, Washington (IAD) Southwest Airlines WN 360 Non-stop Boeing 737-800 (73H) 3:20 Operates only on 2025-07-04
Mon,Thu-Sat 18:00 Denver (DEN) 23:30 Dulles, Washington (IAD) Southwest Airlines WN 360 Non-stop Boeing 737-800 (73H) 3:30 Effective 2025-06-05 through 2025-07-03
Mon,Thu-Sat 18:00 Denver (DEN) 23:30 Dulles, Washington (IAD) Southwest Airlines WN 360 Non-stop Boeing 737-800 (73H) 3:30 Effective 2025-07-05 through 2025-08-04
Sun 18:50 Denver (DEN) 00:10 Dulles, Washington (IAD) Southwest Airlines WN 360 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-06-08 through 2025-08-03 The flight arrives 1 day after departure.
Sun 11:10 Denver (DEN) 16:30 Dulles, Washington (IAD) Southwest Airlines WN 555 Non-stop Boeing 737-700 (73W) 3:20 Effective 2025-06-08 through 2025-08-03
Mon-Wed 18:10 Denver (DEN) 23:25 Dulles, Washington (IAD) Southwest Airlines WN 820 Non-stop Boeing 737-800 (73H) 3:15 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 18:10 Denver (DEN) 23:25 Dulles, Washington (IAD) Southwest Airlines WN 820 Non-stop Boeing 737-800 (73H) 3:15 Effective 2025-12-19 through 2026-01-04
Sat 19:45 Denver (DEN) 00:55 Dulles, Washington (IAD) Southwest Airlines WN 820 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-11-22 through 2025-11-29 The flight arrives 1 day after departure.
Sat 19:45 Denver (DEN) 00:55 Dulles, Washington (IAD) Southwest Airlines WN 820 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-20 through 2026-01-03 The flight arrives 1 day after departure.
Tue,Wed 17:15 Denver (DEN) 22:35 Dulles, Washington (IAD) Southwest Airlines WN 1227 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Valid until 2025-06-04
Mon,Thu,Fri 07:45 Denver (DEN) 13:00 Dulles, Washington (IAD) Southwest Airlines WN 1723 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2025-10-02 through 2025-10-31
Sun 07:40 Denver (DEN) 13:00 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Operates only on 2025-11-30
Mon-Wed 07:45 Denver (DEN) 13:05 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 07:45 Denver (DEN) 13:05 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri,Sun 07:50 Denver (DEN) 13:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 07:50 Denver (DEN) 13:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-11-21 through 2025-11-28
Fri,Sun 07:50 Denver (DEN) 13:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-12-07 through 2025-12-14
Thu 07:50 Denver (DEN) 13:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Operates only on 2025-12-18
Mon 07:50 Denver (DEN) 13:10 Dulles, Washington (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 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2025-11-22 through 2025-11-29
Sat 10:20 Denver (DEN) 15:35 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2025-12-20 through 2026-01-03
Tue,Wed 17:00 Denver (DEN) 22:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-11-04 through 2025-11-12
Mon-Thu 17:00 Denver (DEN) 22:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-11-17 through 2025-11-20
Mon-Fri 17:00 Denver (DEN) 22:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-02 through 2025-12-11
Mon-Wed 17:00 Denver (DEN) 22:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-15 through 2025-12-17
Wed,Thu 17:00 Denver (DEN) 22:10 Dulles, Washington (IAD) Southwest Airlines WN 1762 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-24 through 2026-01-01
Tue,Wed 08:20 Denver (DEN) 13:40 Dulles, Washington (IAD) Southwest Airlines WN 1869 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-08-05 through 2025-10-01
Sun 12:00 Denver (DEN) 17:20 Dulles, Washington (IAD) Southwest Airlines WN 1869 Non-stop Boeing 737-800 (73H) 3:20 Operates only on 2025-08-31
Mon,Thu-Sat 17:30 Denver (DEN) 22:50 Dulles, Washington (IAD) Southwest Airlines WN 1869 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-08-07 through 2025-09-29
Sun 19:30 Denver (DEN) 00:55 Dulles, Washington (IAD) Southwest Airlines WN 1869 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2025-08-10 through 2025-08-24 The flight arrives 1 day after departure.
Sun 19:30 Denver (DEN) 00:55 Dulles, Washington (IAD) Southwest Airlines WN 1869 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2025-09-07 through 2025-09-28 The flight arrives 1 day after departure.
Thu 11:20 Denver (DEN) 16:35 Dulles, Washington (IAD) Southwest Airlines WN 1885 Non-stop Boeing 737-800 (73H) 3:15 Operates only on 2025-11-27
Mon,Thu,Fri 08:00 Denver (DEN) 13:25 Dulles, Washington (IAD) Southwest Airlines WN 1956 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Valid until 2025-06-02
Sat 09:50 Denver (DEN) 15:15 Dulles, Washington (IAD) Southwest Airlines WN 1956 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Valid until 2025-05-31
Mon,Thu,Fri 13:00 Denver (DEN) 18:15 Dulles, Washington (IAD) Southwest Airlines WN 2036 Non-stop Boeing 737-700 (73W) 3:15 Effective 2025-08-07 through 2025-09-29
Tue,Wed 16:45 Denver (DEN) 22:05 Dulles, Washington (IAD) Southwest Airlines WN 2036 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-08-05 through 2025-10-01
Mon,Thu,Fri 08:00 Denver (DEN) 13:20 Dulles, Washington (IAD) Southwest Airlines WN 2467 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-08-07 through 2025-09-29
Sat 09:40 Denver (DEN) 15:00 Dulles, Washington (IAD) Southwest Airlines WN 2467 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-08-09 through 2025-09-27
Mon,Thu,Fri,Sun 13:50 Denver (DEN) 19:00 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 13:50 Denver (DEN) 19:00 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2025-11-21 through 2025-11-28
Fri,Sun 13:50 Denver (DEN) 19:00 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2025-12-07 through 2025-12-14
Thu 13:50 Denver (DEN) 19:00 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Operates only on 2025-12-18
Mon 13:50 Denver (DEN) 19:00 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Operates only on 2026-01-05
Mon-Wed 14:00 Denver (DEN) 19:10 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 14:00 Denver (DEN) 19:10 Dulles, Washington (IAD) Southwest Airlines WN 2474 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-12-19 through 2026-01-04
Tue,Wed 10:50 Denver (DEN) 16:00 Dulles, Washington (IAD) Southwest Airlines WN 2490 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2025-10-07 through 2025-10-29
Mon,Thu,Fri 13:45 Denver (DEN) 19:00 Dulles, Washington (IAD) Southwest Airlines WN 2490 Non-stop Boeing 737-800 (73H) 3:15 Effective 2025-10-02 through 2025-10-31
Sat 17:40 Denver (DEN) 23:00 Dulles, Washington (IAD) Southwest Airlines WN 2491 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-10-04 through 2025-11-01
Tue,Wed 17:45 Denver (DEN) 23:05 Dulles, Washington (IAD) Southwest Airlines WN 2491 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-10-07 through 2025-10-29

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A domestic route departing from the Denver airport (DEN) and arriving at Dulles, Washington 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 3:10 and 3:30.

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Southwest Airlines flights from Denver (DEN) to Dulles, Washington (IAD).

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN360

13:10

Denver (DEN)

18:25

Dulles, Washington (IAD)

Effective 2025-06-10 through 2025-07-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN360

16:50

Denver (DEN)

22:10

Dulles, Washington (IAD)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Southwest Airlines WN360

18:00

Denver (DEN)

23:30

Dulles, Washington (IAD)

Effective 2025-06-05 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

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

Southwest Airlines WN360

18:00

Denver (DEN)

23:30

Dulles, Washington (IAD)

Effective 2025-07-05 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

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

Southwest Airlines WN360

18:50

Denver (DEN)

00:10(+1)

Dulles, Washington (IAD)

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN555

11:10

Denver (DEN)

16:30

Dulles, Washington (IAD)

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN820

18:10

Denver (DEN)

23:25

Dulles, Washington (IAD)

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN820

18:10

Denver (DEN)

23:25

Dulles, Washington (IAD)

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN820

19:45

Denver (DEN)

00:55(+1)

Dulles, Washington (IAD)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:10, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Southwest Airlines WN820

19:45

Denver (DEN)

00:55(+1)

Dulles, Washington (IAD)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:10, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Southwest Airlines WN1227

17:15

Denver (DEN)

22:35

Dulles, Washington (IAD)

Valid until 2025-06-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1723

07:45

Denver (DEN)

13:00

Dulles, Washington (IAD)

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1762

07:40

Denver (DEN)

13:00

Dulles, Washington (IAD)

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN1762

07:45

Denver (DEN)

13:05

Dulles, Washington (IAD)

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1762

07:45

Denver (DEN)

13:05

Dulles, Washington (IAD)

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN1762

07:50

Denver (DEN)

13:10

Dulles, Washington (IAD)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Southwest Airlines WN1762

07:50

Denver (DEN)

13:10

Dulles, Washington (IAD)

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN1762

07:50

Denver (DEN)

13:10

Dulles, Washington (IAD)

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN1762

07:50

Denver (DEN)

13:10

Dulles, Washington (IAD)

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1762

07:50

Denver (DEN)

13:10

Dulles, Washington (IAD)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1762

10:20

Denver (DEN)

15:35

Dulles, Washington (IAD)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1762

10:20

Denver (DEN)

15:35

Dulles, Washington (IAD)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1762

17:00

Denver (DEN)

22:10

Dulles, Washington (IAD)

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1762

17:00

Denver (DEN)

22:10

Dulles, Washington (IAD)

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1762

17:00

Denver (DEN)

22:10

Dulles, Washington (IAD)

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN1762

17:00

Denver (DEN)

22:10

Dulles, Washington (IAD)

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1762

17:00

Denver (DEN)

22:10

Dulles, Washington (IAD)

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1869

08:20

Denver (DEN)

13:40

Dulles, Washington (IAD)

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1869

12:00

Denver (DEN)

17:20

Dulles, Washington (IAD)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN1869

17:30

Denver (DEN)

22:50

Dulles, Washington (IAD)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun
-

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

Southwest Airlines WN1869

19:30

Denver (DEN)

00:55(+1)

Dulles, Washington (IAD)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN1869

19:30

Denver (DEN)

00:55(+1)

Dulles, Washington (IAD)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Southwest Airlines WN1885

11:20

Denver (DEN)

16:35

Dulles, Washington (IAD)

Operates only on 2025-11-27

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN1956

08:00

Denver (DEN)

13:25

Dulles, Washington (IAD)

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN1956

09:50

Denver (DEN)

15:15

Dulles, Washington (IAD)

Valid until 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2036

13:00

Denver (DEN)

18:15

Dulles, Washington (IAD)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN2036

16:45

Denver (DEN)

22:05

Dulles, Washington (IAD)

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN2467

08:00

Denver (DEN)

13:20

Dulles, Washington (IAD)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN2467

09:40

Denver (DEN)

15:00

Dulles, Washington (IAD)

Effective 2025-08-09 through 2025-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Southwest Airlines WN2474

13:50

Denver (DEN)

19:00

Dulles, Washington (IAD)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2474

13:50

Denver (DEN)

19:00

Dulles, Washington (IAD)

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2474

13:50

Denver (DEN)

19:00

Dulles, Washington (IAD)

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2474

13:50

Denver (DEN)

19:00

Dulles, Washington (IAD)

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2474

13:50

Denver (DEN)

19:00

Dulles, Washington (IAD)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2474

14:00

Denver (DEN)

19:10

Dulles, Washington (IAD)

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN2474

14:00

Denver (DEN)

19:10

Dulles, Washington (IAD)

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN2490

10:50

Denver (DEN)

16:00

Dulles, Washington (IAD)

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN2490

13:45

Denver (DEN)

19:00

Dulles, Washington (IAD)

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN2491

17:40

Denver (DEN)

23:00

Dulles, Washington (IAD)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Southwest Airlines WN2491

17:45

Denver (DEN)

23:05

Dulles, Washington (IAD)

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

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A domestic route departing from the Denver airport (DEN) and arriving at Dulles, Washington 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 3:10 and 3:30.

All DEN-IAD flights

All Southwest Airlines flights

Return (IAD-DEN) flights

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