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

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Mon,Wed,Sat 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 (73J) 5:00 Effective 2025-07-02 through 2025-07-07 Codeshare flight, operated by Alaska Airlines.(AS 348)
Tue-Fri,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-07-03 through 2025-07-10 Codeshare flight, operated by Alaska Airlines.(AS 348)
Daily 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 (73J) 5:00 Effective 2025-07-11 through 2025-07-19 Codeshare flight, operated by Alaska Airlines.(AS 348)
Mon,Tue,Thu,Sat,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-07-20 through 2025-07-27 Codeshare flight, operated by Alaska Airlines.(AS 348)
Mon-Wed,Fri 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 (73J) 5:00 Effective 2025-07-23 through 2025-08-01 Codeshare flight, operated by Alaska Airlines.(AS 348)
Mon,Tue,Thu,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-07-31 through 2025-08-07 Codeshare flight, operated by Alaska Airlines.(AS 348)
Wed,Fri,Sat 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 (73J) 5:00 Effective 2025-08-02 through 2025-08-08 Codeshare flight, operated by Alaska Airlines.(AS 348)
Mon,Tue,Thu,Sat,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-08-09 through 2025-08-17 Codeshare flight, operated by Alaska Airlines.(AS 348)
Mon,Wed,Fri 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 (73J) 5:00 Effective 2025-08-13 through 2025-08-18 Codeshare flight, operated by Alaska Airlines.(AS 348)
Tue 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Operates only on 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 348)
Daily 16:00 Seattle-Tacoma (SEA) 23:49 Dulles, Washington (IAD) Air Tahiti Nui TN 2543 Non-stop Boeing 737 (73J) 4:49 Effective 2025-10-04 through 2025-11-20 Codeshare flight, operated by Alaska Airlines.(AS 348)
Tue,Thu,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-06-12 through 2025-06-17 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon,Wed-Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-06-13 through 2025-06-19 Codeshare flight, operated by Alaska Airlines.(AS 406)
Tue,Fri,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-06-20 through 2025-06-24 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon,Wed-Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-06-21 through 2025-06-27 Codeshare flight, operated by Alaska Airlines.(AS 406)
Sat,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-06-28 through 2025-06-29 Codeshare flight, operated by Alaska Airlines.(AS 406)
Daily 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-06-30 through 2025-07-12 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon,Sat,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-07-13 through 2025-07-20 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon-Fri 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-07-15 through 2025-07-25 Codeshare flight, operated by Alaska Airlines.(AS 406)
Daily 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-07-26 through 2025-08-02 Codeshare flight, operated by Alaska Airlines.(AS 406)
Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-08-03 through 2025-08-17 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon-Fri 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-08-04 through 2025-08-15 Codeshare flight, operated by Alaska Airlines.(AS 406)
Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737-800 (73H) 4:58 Operates only on 2025-08-09 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon,Tue,Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 4:58 Effective 2025-08-16 through 2025-08-19 Codeshare flight, operated by Alaska Airlines.(AS 406)
Daily 09:55 Seattle-Tacoma (SEA) 17:55 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 5:00 Effective from 2025-10-04 Codeshare flight, operated by Alaska Airlines.(AS 406)
Daily 10:06 Seattle-Tacoma (SEA) 18:17 Dulles, Washington (IAD) Air Tahiti Nui TN 2556 Non-stop Boeing 737 (73J) 5:11 Effective 2025-08-20 through 2025-10-03 Codeshare flight, operated by Alaska Airlines.(AS 406)
Wed 16:00 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD) Air Tahiti Nui TN 2599 Non-stop Boeing 737 (73J) 4:59 Operates only on 2025-06-11 Codeshare flight, operated by Alaska Airlines.(AS 610)
Tue,Fri,Sun 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Air Tahiti Nui TN 2677 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Valid until 2025-05-09 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Mon,Wed,Thu 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Air Tahiti Nui TN 2677 Non-stop Boeing 737 (73J) 5:03 Valid until 2025-05-08 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Mon,Wed,Sun 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Air Tahiti Nui TN 2677 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.
Tue 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD) Air Tahiti Nui TN 2677 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Operates only on 2025-05-13 Codeshare flight, operated by Alaska Airlines.(AS 369) The flight arrives 1 day after departure.
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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) Copa Airlines CM 2765 Non-stop Airbus A319 (319) 5:08 Effective 2025-05-04 through 2025-05-18 Codeshare flight, operated by United Airlines.(UA 2275)
Mon-Sat 13:09 Seattle-Tacoma (SEA) 21:15 Dulles, Washington (IAD) Copa Airlines CM 2765 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Effective 2025-09-26 through 2025-10-04 Codeshare flight, operated by United Airlines.(UA 2131)
Daily 13:09 Seattle-Tacoma (SEA) 21:15 Dulles, Washington (IAD) Copa Airlines CM 2765 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Effective 2025-10-05 through 2025-10-25 Codeshare flight, operated by United Airlines.(UA 2131)
Mon-Fri,Sun 22:05 Seattle-Tacoma (SEA) 06:02 Dulles, Washington (IAD) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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) Copa Airlines CM 2765 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 22:58 Seattle-Tacoma (SEA) 07:01 Dulles, Washington (IAD) Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-08-19 through 2025-09-07 Codeshare flight, operated by United Airlines.(UA 2019) The flight arrives 1 day after departure.
Tue-Sun 22:58 Seattle-Tacoma (SEA) 07:01 Dulles, Washington (IAD) Copa Airlines CM 2765 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-09-09 through 2025-09-24 Codeshare flight, operated by United Airlines.(UA 2019) The flight arrives 1 day after departure.
Daily 23:30 Seattle-Tacoma (SEA) 07:36 Dulles, Washington (IAD) Air Tahiti Nui TN 2784 Non-stop Boeing 737 (73J) 5:06 Effective 2025-05-15 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) Air Tahiti Nui TN 2791 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.
Sat 21:55 Seattle-Tacoma (SEA) 04:55 Dulles, Washington (IAD) Air Tahiti Nui TN 2791 Non-stop Boeing 737 (73J) 5:00 Operates only on 2025-11-01 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:55 Dulles, Washington (IAD) Air Tahiti Nui TN 2791 Non-stop Boeing 737 (73J) 5:00 Effective 2025-11-02 through 2026-01-06 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:55 Dulles, Washington (IAD) Air Tahiti Nui TN 2791 Non-stop Boeing 737 (73J) 5:00 Effective from 2026-02-12 Codeshare flight, operated by Alaska Airlines.(AS 367) The flight arrives 1 day after departure.

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Parallax here SEA-IAD

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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:

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-07-02 through 2025-07-07

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-07-03 through 2025-07-10

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-07-11 through 2025-07-19

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-07-20 through 2025-07-27

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-07-23 through 2025-08-01

Mon

Tue

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-07-31 through 2025-08-07

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-08-02 through 2025-08-08

Mon
-

Tue
-

Wed

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-08-09 through 2025-08-17

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Effective 2025-08-13 through 2025-08-18

Mon

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2543

15:59

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Operates only on 2025-08-19

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2543

16:00

Seattle-Tacoma (SEA)

23:49

Dulles, Washington (IAD)

Effective 2025-10-04 through 2025-11-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 348)

Duration: 4:49, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-06-12 through 2025-06-17

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-06-13 through 2025-06-19

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-06-20 through 2025-06-24

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-06-21 through 2025-06-27

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-06-28 through 2025-06-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-06-30 through 2025-07-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-07-13 through 2025-07-20

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-07-15 through 2025-07-25

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-07-26 through 2025-08-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-08-04 through 2025-08-15

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Operates only on 2025-08-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737-800 (73H)

Air Tahiti Nui TN2556

09:15

Seattle-Tacoma (SEA)

17:13

Dulles, Washington (IAD)

Effective 2025-08-16 through 2025-08-19

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 4:58, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

09:55

Seattle-Tacoma (SEA)

17:55

Dulles, Washington (IAD)

Effective from 2025-10-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Alaska Airlines. (AS 406)

Duration: 5:00, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2556

10:06

Seattle-Tacoma (SEA)

18:17

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 406)

Duration: 5:11, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2599

16:00

Seattle-Tacoma (SEA)

23:59

Dulles, Washington (IAD)

Operates only on 2025-06-11

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Alaska Airlines. (AS 610)

Duration: 4:59, non-stop
Boeing 737 (73J)

Air Tahiti Nui TN2677

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Valid until 2025-05-09

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.

Air Tahiti Nui TN2677

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Valid until 2025-05-08

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.

Air Tahiti Nui TN2677

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.

Air Tahiti Nui TN2677

23:40

Seattle-Tacoma (SEA)

07:43(+1)

Dulles, Washington (IAD)

Operates only on 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.

Copa Airlines CM2765

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)

Copa Airlines CM2765

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)

Copa Airlines CM2765

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)

Copa Airlines CM2765

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)

Copa Airlines CM2765

13:09

Seattle-Tacoma (SEA)

21:15

Dulles, Washington (IAD)

Effective 2025-09-26 through 2025-10-04

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)

Copa Airlines CM2765

13:09

Seattle-Tacoma (SEA)

21:15

Dulles, Washington (IAD)

Effective 2025-10-05 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)

Copa Airlines CM2765

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.

Copa Airlines CM2765

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.

Copa Airlines CM2765

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.

Copa Airlines CM2765

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.

Copa Airlines CM2765

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.

Copa Airlines CM2765

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.

Copa Airlines CM2765

22:58

Seattle-Tacoma (SEA)

07:01(+1)

Dulles, Washington (IAD)

Effective 2025-08-19 through 2025-09-07

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.

Copa Airlines CM2765

22:58

Seattle-Tacoma (SEA)

07:01(+1)

Dulles, Washington (IAD)

Effective 2025-09-09 through 2025-09-24

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.

Air Tahiti Nui TN2784

23:30

Seattle-Tacoma (SEA)

07:36(+1)

Dulles, Washington (IAD)

Effective 2025-05-15 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.

Air Tahiti Nui TN2791

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.

Air Tahiti Nui TN2791

21:55

Seattle-Tacoma (SEA)

04:55(+1)

Dulles, Washington (IAD)

Operates only on 2025-11-01

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.

Air Tahiti Nui TN2791

21:55

Seattle-Tacoma (SEA)

05:55(+1)

Dulles, Washington (IAD)

Effective 2025-11-02 through 2026-01-06

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.

Air Tahiti Nui TN2791

21:55

Seattle-Tacoma (SEA)

05:55(+1)

Dulles, Washington (IAD)

Effective from 2026-02-12

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.

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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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