All airlines flying from Seattle-Tacoma (SEA) to Dulles, Washington (IAD).

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed,Thu,Sat 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective 2025-10-27 through 2025-12-17 Codeshare flight, operated by United Airlines.(UA 2217)
Mon,Wed,Thu,Sat 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:53 Effective from 2026-01-07 Codeshare flight, operated by United Airlines.(UA 2217)
Thu 08:10 Seattle-Tacoma (SEA) 16:18 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Airbus A320 (320) 5:08 Operates only on 2025-05-01 Codeshare flight, operated by United Airlines.(UA 2398)
Mon,Wed,Thu,Sat 08:10 Seattle-Tacoma (SEA) 16:18 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 9 (7M9) 5:08 Effective 2025-05-03 through 2025-05-21 Codeshare flight, operated by United Airlines.(UA 2398)
Mon-Fri,Sun 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-06-26 through 2025-07-03 Codeshare flight, operated by United Airlines.(UA 2402) The flight arrives 1 day after departure.
Sat 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-06-28 through 2025-08-16 Codeshare flight, operated by United Airlines.(UA 2402) The flight arrives 1 day after departure.
Mon-Fri,Sun 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-06 through 2025-08-18 Codeshare flight, operated by United Airlines.(UA 2402) The flight arrives 1 day after departure.
Mon-Fri,Sun 22:15 Seattle-Tacoma (SEA) 06:12 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-05-22 through 2025-06-24 Codeshare flight, operated by United Airlines.(UA 2402) The flight arrives 1 day after departure.
Sat 22:15 Seattle-Tacoma (SEA) 06:12 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-05-24 through 2025-06-21 Codeshare flight, operated by United Airlines.(UA 2402) The flight arrives 1 day after departure.
Wed 22:15 Seattle-Tacoma (SEA) 06:12 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-700 (73G) 4:57 Operates only on 2025-06-25 Codeshare flight, operated by United Airlines.(UA 2402) The flight arrives 1 day after departure.
Daily 23:20 Seattle-Tacoma (SEA) 07:08 Dulles, Washington (IAD) Ethiopian Airlines ET 1369 Non-stop Boeing 737-900 (739) 4:48 Effective 2025-12-18 through 2026-01-05 Codeshare flight, operated by United Airlines.(UA 2019) The flight arrives 1 day after departure.
Sat 12:36 Seattle-Tacoma (SEA) 20:43 Dulles, Washington (IAD) Qatar Airways QR 2009 Non-stop Boeing 737-800 (73H) 5:07 Valid until 2025-05-03 Codeshare flight, operated by Alaska Airlines.(AS 414)
Sat 12:36 Seattle-Tacoma (SEA) 20:43 Dulles, Washington (IAD) Qatar Airways QR 2009 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Operates only on 2025-05-10 Codeshare flight, operated by Alaska Airlines.(AS 414)
Wed 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Qatar Airways QR 2025 Non-stop Boeing 737 (73J) 5:03 Valid until 2025-05-07 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Fri,Sun 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Qatar Airways QR 2025 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Valid until 2025-05-04 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Tue,Fri 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Qatar Airways QR 2025 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-05-06 through 2025-05-13 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Wed,Sun 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Qatar Airways QR 2025 Non-stop Boeing 737 (73J) 5:03 Effective 2025-05-11 through 2025-05-14 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Daily 08:00 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:10 Effective 2025-08-19 through 2025-08-31 Codeshare flight, operated by United Airlines.(UA 2217)
Tue,Thu,Sat 08:00 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:10 Effective 2025-09-02 through 2025-09-23 Codeshare flight, operated by United Airlines.(UA 2217)
Tue,Thu,Sat 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective 2025-12-02 through 2025-12-16 Codeshare flight, operated by United Airlines.(UA 2217)
Tue,Thu,Sat 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:53 Effective from 2026-01-06 Codeshare flight, operated by United Airlines.(UA 2217)
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:58 Effective 2025-10-26 through 2025-12-01 Codeshare flight, operated by United Airlines.(UA 2131)
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:58 Effective 2025-12-18 through 2026-01-05 Codeshare flight, operated by United Airlines.(UA 2131)
Mon-Sat 12:55 Seattle-Tacoma (SEA) 21:03 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 5:08 Valid until 2025-05-21 Codeshare flight, operated by United Airlines.(UA 2275)
Sun 12:55 Seattle-Tacoma (SEA) 21:03 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Airbus A319 (319) 5:08 Effective 2025-05-04 through 2025-05-18 Codeshare flight, operated by United Airlines.(UA 2275)
Tue-Fri 12:55 Seattle-Tacoma (SEA) 21:02 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 5:07 Effective 2025-05-22 through 2025-06-25 Codeshare flight, operated by United Airlines.(UA 2275)
Sat 12:55 Seattle-Tacoma (SEA) 21:02 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Effective 2025-05-24 through 2025-06-21 Codeshare flight, operated by United Airlines.(UA 2275)
Mon,Sun 12:55 Seattle-Tacoma (SEA) 21:02 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-700 (73G) 5:07 Effective 2025-05-25 through 2025-06-23 Codeshare flight, operated by United Airlines.(UA 2275)
Mon-Fri,Sun 12:55 Seattle-Tacoma (SEA) 20:52 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-06-26 through 2025-07-31 Codeshare flight, operated by United Airlines.(UA 2275)
Sat 12:55 Seattle-Tacoma (SEA) 20:52 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-700 (73G) 4:57 Operates only on 2025-06-28 Codeshare flight, operated by United Airlines.(UA 2275)
Sat 12:55 Seattle-Tacoma (SEA) 20:52 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Operates only on 2025-07-05 Codeshare flight, operated by United Airlines.(UA 2275)
Sat 12:55 Seattle-Tacoma (SEA) 20:52 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-700 (73G) 4:57 Effective 2025-07-12 through 2025-08-16 Codeshare flight, operated by United Airlines.(UA 2275)
Mon-Fri 12:55 Seattle-Tacoma (SEA) 20:52 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-08-01 through 2025-08-18 Codeshare flight, operated by United Airlines.(UA 2275)
Sun 12:55 Seattle-Tacoma (SEA) 20:52 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-08-03 through 2025-08-17 Codeshare flight, operated by United Airlines.(UA 2275)
Daily 13:09 Seattle-Tacoma (SEA) 21:15 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Effective 2025-09-25 through 2025-10-25 Codeshare flight, operated by United Airlines.(UA 2131)
Sun 22:58 Seattle-Tacoma (SEA) 07:01 Dulles, Washington (IAD) Avianca AV 2029 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-09-07 through 2025-09-21 Codeshare flight, operated by United Airlines.(UA 2019) The flight arrives 1 day after departure.
Tue,Wed,Fri-Sun 23:30 Seattle-Tacoma (SEA) 07:36 Dulles, Washington (IAD) Qatar Airways QR 2043 Non-stop Boeing 737 (73J) 5:06 Effective 2025-05-16 through 2025-06-01 Codeshare flight, operated by Alaska Airlines.(AS 307) The flight arrives 1 day after departure.
Daily 23:30 Seattle-Tacoma (SEA) 07:36 Dulles, Washington (IAD) Qatar Airways QR 2043 Non-stop Boeing 737 (73J) 5:06 Effective 2025-06-02 through 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 307) The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:55 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 (73J) 5:00 Effective 2025-10-04 through 2025-10-31 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 (73J) 4:57 Effective 2025-06-12 through 2025-06-28 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Fri 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-06-13 through 2025-06-27 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Operates only on 2025-06-29 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 (73J) 4:57 Effective 2025-06-30 through 2025-07-19 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Fri 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-11 through 2025-07-18 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Fri,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-20 through 2025-07-25 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 (73J) 4:57 Effective 2025-07-21 through 2025-08-18 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Fri 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-08-01 through 2025-08-15 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Tue 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Operates only on 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Daily 23:30 Seattle-Tacoma (SEA) 07:32 Dulles, Washington (IAD) Qatar Airways QR 2049 Non-stop Boeing 737 (73J) 5:02 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Mon,Thu 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Qatar Airways QR 2065 Non-stop Boeing 737 (73J) 5:03 Valid until 2025-05-12 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.

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A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Dulles, Washington airport (IAD).
The flight distance is 2299 miles, or 3699 km.
The timezone of the departure airport is UTC-8 , 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 4:48 and 5:11.

Return (IAD-SEA) flights

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All airlines flying from Seattle-Tacoma (SEA) to Dulles, Washington (IAD).

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Ethiopian Airlines ET1369

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective 2025-10-27 through 2025-12-17

Mon

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2217)

Duration: 4:53, non-stop
Boeing 737-900 (739)

Ethiopian Airlines ET1369

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective from 2026-01-07

Mon

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2217)

Duration: 4:53, non-stop
Boeing 737-900 (739)

Ethiopian Airlines ET1369

08:10

Seattle-Tacoma (SEA)

16:18

Dulles, Washington (IAD)

Operates only on 2025-05-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2398)

Duration: 5:08, non-stop
Airbus A320 (320)

Ethiopian Airlines ET1369

08:10

Seattle-Tacoma (SEA)

16:18

Dulles, Washington (IAD)

Effective 2025-05-03 through 2025-05-21

Mon

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2398)

Duration: 5:08, non-stop
Boeing 737 MAX 9 (7M9)

Ethiopian Airlines ET1369

22:05

Seattle-Tacoma (SEA)

06:02(+1)

Dulles, Washington (IAD)

Effective 2025-06-26 through 2025-07-03

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2402)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Ethiopian Airlines ET1369

22:05

Seattle-Tacoma (SEA)

06:02(+1)

Dulles, Washington (IAD)

Effective 2025-06-28 through 2025-08-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2402)

Duration: 4:57, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Ethiopian Airlines ET1369

22:05

Seattle-Tacoma (SEA)

06:02(+1)

Dulles, Washington (IAD)

Effective 2025-07-06 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2402)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Ethiopian Airlines ET1369

22:15

Seattle-Tacoma (SEA)

06:12(+1)

Dulles, Washington (IAD)

Effective 2025-05-22 through 2025-06-24

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2402)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Ethiopian Airlines ET1369

22:15

Seattle-Tacoma (SEA)

06:12(+1)

Dulles, Washington (IAD)

Effective 2025-05-24 through 2025-06-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2402)

Duration: 4:57, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Ethiopian Airlines ET1369

22:15

Seattle-Tacoma (SEA)

06:12(+1)

Dulles, Washington (IAD)

Operates only on 2025-06-25

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2402)

Duration: 4:57, non-stop
Boeing 737-700 (73G)
The flight arrives 1 day after departure.

Ethiopian Airlines ET1369

23:20

Seattle-Tacoma (SEA)

07:08(+1)

Dulles, Washington (IAD)

Effective 2025-12-18 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2019)

Duration: 4:48, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.

Qatar Airways QR2009

12:36

Seattle-Tacoma (SEA)

20:43

Dulles, Washington (IAD)

Valid until 2025-05-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 414)

Duration: 5:07, non-stop
Boeing 737-800 (73H)

Qatar Airways QR2009

12:36

Seattle-Tacoma (SEA)

20:43

Dulles, Washington (IAD)

Operates only on 2025-05-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 414)

Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)

Qatar Airways QR2025

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Valid until 2025-05-07

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 369)

Duration: 5:03, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2025

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Valid until 2025-05-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 369)

Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2025

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Effective 2025-05-06 through 2025-05-13

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 369)

Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2025

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Effective 2025-05-11 through 2025-05-14

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 369)

Duration: 5:03, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Avianca AV2029

08:00

Seattle-Tacoma (SEA)

16:10

Dulles, Washington (IAD)

Effective 2025-08-19 through 2025-08-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2217)

Duration: 5:10, non-stop
Boeing 737 MAX 8 (7M8)

Avianca AV2029

08:00

Seattle-Tacoma (SEA)

16:10

Dulles, Washington (IAD)

Effective 2025-09-02 through 2025-09-23

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2217)

Duration: 5:10, non-stop
Boeing 737 MAX 8 (7M8)

Avianca AV2029

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective 2025-12-02 through 2025-12-16

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2217)

Duration: 4:53, non-stop
Boeing 737-900 (739)

Avianca AV2029

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective from 2026-01-06

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2217)

Duration: 4:53, non-stop
Boeing 737-900 (739)

Avianca AV2029

12:50

Seattle-Tacoma (SEA)

20:48

Dulles, Washington (IAD)

Effective 2025-10-26 through 2025-12-01

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2131)

Duration: 4:58, non-stop
Boeing 737-900 (739)

Avianca AV2029

12:50

Seattle-Tacoma (SEA)

20:48

Dulles, Washington (IAD)

Effective 2025-12-18 through 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2131)

Duration: 4:58, non-stop
Boeing 737-900 (739)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

21:03

Dulles, Washington (IAD)

Valid until 2025-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 5:08, non-stop
Boeing 737-900 (739)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

21:03

Dulles, Washington (IAD)

Effective 2025-05-04 through 2025-05-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 5:08, non-stop
Airbus A319 (319)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

21:02

Dulles, Washington (IAD)

Effective 2025-05-22 through 2025-06-25

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 5:07, non-stop
Boeing 737-900 (739)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

21:02

Dulles, Washington (IAD)

Effective 2025-05-24 through 2025-06-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

21:02

Dulles, Washington (IAD)

Effective 2025-05-25 through 2025-06-23

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 5:07, non-stop
Boeing 737-700 (73G)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

20:52

Dulles, Washington (IAD)

Effective 2025-06-26 through 2025-07-31

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 4:57, non-stop
Boeing 737-900 (739)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

20:52

Dulles, Washington (IAD)

Operates only on 2025-06-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 4:57, non-stop
Boeing 737-700 (73G)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

20:52

Dulles, Washington (IAD)

Operates only on 2025-07-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

20:52

Dulles, Washington (IAD)

Effective 2025-07-12 through 2025-08-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 4:57, non-stop
Boeing 737-700 (73G)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

20:52

Dulles, Washington (IAD)

Effective 2025-08-01 through 2025-08-18

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)

Avianca AV2029

12:55

Seattle-Tacoma (SEA)

20:52

Dulles, Washington (IAD)

Effective 2025-08-03 through 2025-08-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2275)

Duration: 4:57, non-stop
Boeing 737-900 (739)

Avianca AV2029

13:09

Seattle-Tacoma (SEA)

21:15

Dulles, Washington (IAD)

Effective 2025-09-25 through 2025-10-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2131)

Duration: 5:06, non-stop
Boeing 737 MAX 8 (7M8)

Avianca AV2029

22:58

Seattle-Tacoma (SEA)

07:01(+1)

Dulles, Washington (IAD)

Effective 2025-09-07 through 2025-09-21

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by United Airlines. (UA 2019)

Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2043

23:30

Seattle-Tacoma (SEA)

07:36(+1)

Dulles, Washington (IAD)

Effective 2025-05-16 through 2025-06-01

Mon
-

Tue

Wed

Thu
-

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 307)

Duration: 5:06, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2043

23:30

Seattle-Tacoma (SEA)

07:36(+1)

Dulles, Washington (IAD)

Effective 2025-06-02 through 2025-06-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 307)

Duration: 5:06, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2049

21:55

Seattle-Tacoma (SEA)

05:55(+1)

Dulles, Washington (IAD)

Effective 2025-10-04 through 2025-10-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 5:00, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-06-12 through 2025-06-28

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-06-13 through 2025-06-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Operates only on 2025-06-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-06-30 through 2025-07-19

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-07-11 through 2025-07-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-07-20 through 2025-07-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-07-21 through 2025-08-18

Mon

Tue

Wed

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Effective 2025-08-01 through 2025-08-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:27(+1)

Dulles, Washington (IAD)

Operates only on 2025-08-19

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.

Qatar Airways QR2049

23:30

Seattle-Tacoma (SEA)

07:32(+1)

Dulles, Washington (IAD)

Effective 2025-08-20 through 2025-10-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 367)

Duration: 5:02, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR2065

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Valid until 2025-05-12

Mon

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 369)

Duration: 5:03, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

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A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Dulles, Washington airport (IAD).
The flight distance is 2299 miles, or 3699 km.
The timezone of the departure airport is UTC-8 , 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 4:48 and 5:11.

Return (IAD-SEA) flights

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