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

FLIGHT SCHEDULE
Direct Codeshare Flights:
Tue 07:35 Seattle-Tacoma (SEA) 15:47 Dulles, Washington (IAD) KLM KL 7251 Non-stop Airbus A220-300 (223) 5:12 Effective 2025-04-15 through 2025-05-06 Codeshare flight, operated by Delta Air Lines.(DL 508)
Mon 08:55 Seattle-Tacoma (SEA) 16:58 Dulles, Washington (IAD) Iberia IB 7293 Non-stop Boeing 737 (73J) 5:03 Effective 2025-03-10 through 2025-03-17 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon 10:00 Seattle-Tacoma (SEA) 18:00 Dulles, Washington (IAD) Iberia IB 7293 Non-stop Boeing 737 (73J) 5:00 Operates only on 2025-03-24 Codeshare flight, operated by Alaska Airlines.(AS 406)
Wed-Sun 08:55 Seattle-Tacoma (SEA) 16:58 Dulles, Washington (IAD) Iberia IB 7304 Non-stop Boeing 737 (73J) 5:03 Effective 2025-01-15 through 2025-03-08 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon 08:55 Seattle-Tacoma (SEA) 16:58 Dulles, Washington (IAD) Iberia IB 7308 Non-stop Boeing 737 (73J) 5:03 Effective 2025-01-20 through 2025-03-03 Codeshare flight, operated by Alaska Airlines.(AS 406)
Wed-Sun 08:55 Seattle-Tacoma (SEA) 16:58 Dulles, Washington (IAD) Iberia IB 7308 Non-stop Boeing 737 (73J) 5:03 Effective 2025-03-09 through 2025-03-16 Codeshare flight, operated by Alaska Airlines.(AS 406)
Wed-Sun 10:00 Seattle-Tacoma (SEA) 18:00 Dulles, Washington (IAD) Iberia IB 7308 Non-stop Boeing 737 (73J) 5:00 Effective 2025-03-19 through 2025-03-29 Codeshare flight, operated by Alaska Airlines.(AS 406)
Mon,Wed,Fri,Sun 07:00 Seattle-Tacoma (SEA) 15:00 Dulles, Washington (IAD) Iberia IB 7312 Non-stop Boeing 737 (73J) 5:00 Effective from 2025-04-23 Codeshare flight, operated by Alaska Airlines.(AS 367)
Daily 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Lufthansa LH 7485 Non-stop Boeing 737-900 (739) 4:53 Effective from 2025-03-30 Codeshare flight, operated by United Airlines.(UA 1360)
Daily 12:50 Seattle-Tacoma (SEA) 20:38 Dulles, Washington (IAD) Lufthansa LH 7487 Non-stop Boeing 737-900 (739) 4:48 Effective from 2025-03-30 Codeshare flight, operated by United Airlines.(UA 2275)
Tue,Thu-Sun 08:00 Seattle-Tacoma (SEA) 16:06 Dulles, Washington (IAD) Austrian OS 7908 Non-stop Boeing 737-900 (739) 5:06 Effective 2025-01-07 through 2025-02-11 Codeshare flight, operated by United Airlines.(UA 1360)
Tue,Thu-Sun 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Austrian OS 7908 Non-stop Boeing 737-900 (739) 4:53 Effective 2025-02-13 through 2025-03-30 Codeshare flight, operated by United Airlines.(UA 1360)
Mon,Tue,Thu-Sun 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Austrian OS 7908 Non-stop Boeing 737-900 (739) 4:53 Effective from 2025-03-31 Codeshare flight, operated by United Airlines.(UA 1360)
Daily 08:05 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD) Austrian OS 7908 Non-stop Boeing 737 MAX 9 (7M9) 5:05 Effective 2024-09-26 through 2024-10-26 Codeshare flight, operated by United Airlines.(UA 1360)
Tue,Thu-Sun 08:05 Seattle-Tacoma (SEA) 16:03 Dulles, Washington (IAD) Austrian OS 7908 Non-stop Boeing 737-900 (739) 4:58 Effective 2024-10-27 through 2024-12-17 Codeshare flight, operated by United Airlines.(UA 2855)
Daily 08:10 Seattle-Tacoma (SEA) 16:15 Dulles, Washington (IAD) Austrian OS 7908 Non-stop Boeing 737 MAX 9 (7M9) 5:05 Valid until 2024-09-25 Codeshare flight, operated by United Airlines.(UA 1360)
Daily 07:35 Seattle-Tacoma (SEA) 15:43 Dulles, Washington (IAD) KLM KL 8009 Non-stop Airbus A220-300 (223) 5:08 Effective 2025-01-06 through 2025-03-08 Codeshare flight, operated by Delta Air Lines.(DL 508)
Wed 07:35 Seattle-Tacoma (SEA) 15:43 Dulles, Washington (IAD) KLM KL 8009 Non-stop Airbus A220-100 (221) 5:08 Effective 2025-03-12 through 2025-03-26 Codeshare flight, operated by Delta Air Lines.(DL 508)
Mon-Fri,Sun 08:55 Seattle-Tacoma (SEA) 17:00 Dulles, Washington (IAD) KLM KL 8009 Non-stop Airbus A220-300 (223) 5:05 Effective 2024-10-27 through 2024-11-01 Codeshare flight, operated by Delta Air Lines.(DL 508)
Sat 08:55 Seattle-Tacoma (SEA) 17:03 Dulles, Washington (IAD) KLM KL 8009 Non-stop Airbus A220-300 (223) 5:08 Operates only on 2024-11-02 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 07:35 Seattle-Tacoma (SEA) 15:43 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 5:08 Effective 2025-01-06 through 2025-03-08 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 07:35 Seattle-Tacoma (SEA) 15:43 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-100 (221) 5:08 Effective 2025-03-09 through 2025-04-13 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 07:35 Seattle-Tacoma (SEA) 15:47 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 5:12 Effective 2025-04-14 through 2025-06-07 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 07:35 Seattle-Tacoma (SEA) 15:42 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 5:07 Effective from 2025-06-08 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 08:20 Seattle-Tacoma (SEA) 16:32 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 5:12 Effective 2024-12-21 through 2025-01-05 Codeshare flight, operated by Delta Air Lines.(DL 508)
Mon-Fri,Sun 21:55 Seattle-Tacoma (SEA) 06:01 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 5:06 Effective 2024-09-09 through 2024-10-06 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Mon-Fri,Sun 21:55 Seattle-Tacoma (SEA) 05:53 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 4:58 Effective 2024-10-07 through 2024-10-30 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Mon,Wed-Fri,Sun 21:55 Seattle-Tacoma (SEA) 05:53 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 4:58 Effective 2024-11-01 through 2024-11-10 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Mon-Fri,Sun 21:59 Seattle-Tacoma (SEA) 05:56 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 4:57 Effective 2024-09-02 through 2024-09-08 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Mon-Fri,Sun 22:00 Seattle-Tacoma (SEA) 05:56 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 4:56 Effective 2024-11-11 through 2024-11-22 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Mon-Wed,Sat,Sun 22:00 Seattle-Tacoma (SEA) 05:56 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-300 (223) 4:56 Effective 2024-11-23 through 2024-12-02 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 05:56 Dulles, Washington (IAD) China Eastern MU 8779 Non-stop Airbus A220-100 (221) 4:56 Effective 2024-12-03 through 2024-12-18 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Daily 08:05 Seattle-Tacoma (SEA) 16:11 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-100 (221) 5:06 Effective 2024-12-03 through 2024-12-18 Codeshare flight, operated by Delta Air Lines.(DL 508)
Thu,Fri 08:20 Seattle-Tacoma (SEA) 16:32 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:12 Effective 2024-12-19 through 2024-12-20 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 08:35 Seattle-Tacoma (SEA) 16:35 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:00 Valid until 2024-09-08 Codeshare flight, operated by Delta Air Lines.(DL 508)
Mon-Fri,Sun 08:55 Seattle-Tacoma (SEA) 17:00 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:05 Effective 2024-09-09 through 2024-11-10 Codeshare flight, operated by Delta Air Lines.(DL 508)
Sat 08:55 Seattle-Tacoma (SEA) 17:03 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:08 Effective 2024-10-12 through 2024-11-09 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 09:25 Seattle-Tacoma (SEA) 17:26 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:01 Effective 2024-11-11 through 2024-12-02 Codeshare flight, operated by Delta Air Lines.(DL 508)
Sat 11:15 Seattle-Tacoma (SEA) 19:22 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:07 Effective 2024-09-14 through 2024-10-05 Codeshare flight, operated by Delta Air Lines.(DL 508)
Daily 22:00 Seattle-Tacoma (SEA) 06:00 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-100 (221) 5:00 Effective 2025-03-09 through 2025-04-13 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:03 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 5:03 Effective 2025-04-14 through 2025-06-07 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 05:59 Dulles, Washington (IAD) China Eastern MU 8804 Non-stop Airbus A220-300 (223) 4:59 Effective from 2025-06-08 Codeshare flight, operated by Delta Air Lines.(DL 541) The flight arrives 1 day after departure.
Mon,Wed,Sun 21:39 Seattle-Tacoma (SEA) 05:40 Dulles, Washington (IAD) Qatar Airways QR 8844 Non-stop Boeing 737 (73J) 5:01 Effective 2024-12-22 through 2025-01-05 Codeshare flight, operated by Alaska Airlines.(AS 348) The flight arrives 1 day after departure.
Mon,Fri 21:40 Seattle-Tacoma (SEA) 05:32 Dulles, Washington (IAD) Qatar Airways QR 8844 Non-stop Boeing 737 (73J) 4:52 Effective 2024-11-22 through 2024-11-29 Codeshare flight, operated by Alaska Airlines.(AS 348) The flight arrives 1 day after departure.
Wed,Sun 21:40 Seattle-Tacoma (SEA) 05:32 Dulles, Washington (IAD) Qatar Airways QR 8844 Non-stop Boeing 737-800 (73H) 4:52 Effective 2024-11-24 through 2024-11-27 Codeshare flight, operated by Alaska Airlines.(AS 348) The flight arrives 1 day after departure.
Mon,Sun 21:40 Seattle-Tacoma (SEA) 05:32 Dulles, Washington (IAD) Qatar Airways QR 8844 Non-stop Boeing 737 (73J) 4:52 Effective 2024-12-01 through 2024-12-02 Codeshare flight, operated by Alaska Airlines.(AS 348) The flight arrives 1 day after departure.
Fri 22:18 Seattle-Tacoma (SEA) 06:22 Dulles, Washington (IAD) Qatar Airways QR 8844 Non-stop Boeing 737 (73J) 5:04 Effective 2024-12-20 through 2025-01-03 Codeshare flight, operated by Alaska Airlines.(AS 348) The flight arrives 1 day after departure.
Daily 08:00 Seattle-Tacoma (SEA) 16:06 Dulles, Washington (IAD) Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 5:06 Effective 2025-01-07 through 2025-02-12 Codeshare flight, operated by United Airlines.(UA 1360)
Daily 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD) Brussels Airlines SN 8850 Non-stop Boeing 737-900 (739) 4:53 Effective from 2025-02-13 Codeshare flight, operated by United Airlines.(UA 1360)
Daily 08:05 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD) Brussels Airlines SN 8850 Non-stop Boeing 737 MAX 9 (7M9) 5:05 Effective 2024-09-26 through 2024-10-26 Codeshare flight, operated by United Airlines.(UA 1360)

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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 4:47 and 5:12.

Return (IAD-SEA) flights

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

FLIGHT SCHEDULE

Direct Codeshare Flights:

KLM KL7251

07:35

Seattle-Tacoma (SEA)

15:47

Dulles, Washington (IAD)

Effective 2025-04-15 through 2025-05-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:12, non-stop
Airbus A220-300 (223)

Iberia IB7293

08:55

Seattle-Tacoma (SEA)

16:58

Dulles, Washington (IAD)

Effective 2025-03-10 through 2025-03-17

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Duration: 5:03, non-stop
Boeing 737 (73J)

Iberia IB7293

10:00

Seattle-Tacoma (SEA)

18:00

Dulles, Washington (IAD)

Operates only on 2025-03-24

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

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

Iberia IB7304

08:55

Seattle-Tacoma (SEA)

16:58

Dulles, Washington (IAD)

Effective 2025-01-15 through 2025-03-08

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

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

Duration: 5:03, non-stop
Boeing 737 (73J)

Iberia IB7308

08:55

Seattle-Tacoma (SEA)

16:58

Dulles, Washington (IAD)

Effective 2025-01-20 through 2025-03-03

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Duration: 5:03, non-stop
Boeing 737 (73J)

Iberia IB7308

08:55

Seattle-Tacoma (SEA)

16:58

Dulles, Washington (IAD)

Effective 2025-03-09 through 2025-03-16

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

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

Duration: 5:03, non-stop
Boeing 737 (73J)

Iberia IB7308

10:00

Seattle-Tacoma (SEA)

18:00

Dulles, Washington (IAD)

Effective 2025-03-19 through 2025-03-29

Mon
-

Tue
-

Wed

Thu

Fri

Sat

Sun

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

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

Iberia IB7312

07:00

Seattle-Tacoma (SEA)

15:00

Dulles, Washington (IAD)

Effective from 2025-04-23

Mon

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun

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

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

Lufthansa LH7485

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective from 2025-03-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

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

Lufthansa LH7487

12:50

Seattle-Tacoma (SEA)

20:38

Dulles, Washington (IAD)

Effective from 2025-03-30

Mon

Tue

Wed

Thu

Fri

Sat

Sun

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

Duration: 4:48, non-stop
Boeing 737-900 (739)

Austrian OS7908

08:00

Seattle-Tacoma (SEA)

16:06

Dulles, Washington (IAD)

Effective 2025-01-07 through 2025-02-11

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

Duration: 5:06, non-stop
Boeing 737-900 (739)

Austrian OS7908

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective 2025-02-13 through 2025-03-30

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

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

Austrian OS7908

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective from 2025-03-31

Mon

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

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

Austrian OS7908

08:05

Seattle-Tacoma (SEA)

16:10

Dulles, Washington (IAD)

Effective 2024-09-26 through 2024-10-26

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

Duration: 5:05, non-stop
Boeing 737 MAX 9 (7M9)

Austrian OS7908

08:05

Seattle-Tacoma (SEA)

16:03

Dulles, Washington (IAD)

Effective 2024-10-27 through 2024-12-17

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 2855)

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

Austrian OS7908

08:10

Seattle-Tacoma (SEA)

16:15

Dulles, Washington (IAD)

Valid until 2024-09-25

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

Duration: 5:05, non-stop
Boeing 737 MAX 9 (7M9)

KLM KL8009

07:35

Seattle-Tacoma (SEA)

15:43

Dulles, Washington (IAD)

Effective 2025-01-06 through 2025-03-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:08, non-stop
Airbus A220-300 (223)

KLM KL8009

07:35

Seattle-Tacoma (SEA)

15:43

Dulles, Washington (IAD)

Effective 2025-03-12 through 2025-03-26

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:08, non-stop
Airbus A220-100 (221)

KLM KL8009

08:55

Seattle-Tacoma (SEA)

17:00

Dulles, Washington (IAD)

Effective 2024-10-27 through 2024-11-01

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:05, non-stop
Airbus A220-300 (223)

KLM KL8009

08:55

Seattle-Tacoma (SEA)

17:03

Dulles, Washington (IAD)

Operates only on 2024-11-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:08, non-stop
Airbus A220-300 (223)

China Eastern MU8779

07:35

Seattle-Tacoma (SEA)

15:43

Dulles, Washington (IAD)

Effective 2025-01-06 through 2025-03-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:08, non-stop
Airbus A220-300 (223)

China Eastern MU8779

07:35

Seattle-Tacoma (SEA)

15:43

Dulles, Washington (IAD)

Effective 2025-03-09 through 2025-04-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:08, non-stop
Airbus A220-100 (221)

China Eastern MU8779

07:35

Seattle-Tacoma (SEA)

15:47

Dulles, Washington (IAD)

Effective 2025-04-14 through 2025-06-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:12, non-stop
Airbus A220-300 (223)

China Eastern MU8779

07:35

Seattle-Tacoma (SEA)

15:42

Dulles, Washington (IAD)

Effective from 2025-06-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:07, non-stop
Airbus A220-300 (223)

China Eastern MU8779

08:20

Seattle-Tacoma (SEA)

16:32

Dulles, Washington (IAD)

Effective 2024-12-21 through 2025-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:12, non-stop
Airbus A220-300 (223)

China Eastern MU8779

21:55

Seattle-Tacoma (SEA)

06:01(+1)

Dulles, Washington (IAD)

Effective 2024-09-09 through 2024-10-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 5:06, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8779

21:55

Seattle-Tacoma (SEA)

05:53(+1)

Dulles, Washington (IAD)

Effective 2024-10-07 through 2024-10-30

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:58, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8779

21:55

Seattle-Tacoma (SEA)

05:53(+1)

Dulles, Washington (IAD)

Effective 2024-11-01 through 2024-11-10

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:58, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8779

21:59

Seattle-Tacoma (SEA)

05:56(+1)

Dulles, Washington (IAD)

Effective 2024-09-02 through 2024-09-08

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:57, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8779

22:00

Seattle-Tacoma (SEA)

05:56(+1)

Dulles, Washington (IAD)

Effective 2024-11-11 through 2024-11-22

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:56, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8779

22:00

Seattle-Tacoma (SEA)

05:56(+1)

Dulles, Washington (IAD)

Effective 2024-11-23 through 2024-12-02

Mon

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:56, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8779

22:00

Seattle-Tacoma (SEA)

05:56(+1)

Dulles, Washington (IAD)

Effective 2024-12-03 through 2024-12-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:56, non-stop
Airbus A220-100 (221)
The flight arrives 1 day after departure.

China Eastern MU8804

08:05

Seattle-Tacoma (SEA)

16:11

Dulles, Washington (IAD)

Effective 2024-12-03 through 2024-12-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:06, non-stop
Airbus A220-100 (221)

China Eastern MU8804

08:20

Seattle-Tacoma (SEA)

16:32

Dulles, Washington (IAD)

Effective 2024-12-19 through 2024-12-20

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:12, non-stop
Airbus A220-300 (223)

China Eastern MU8804

08:35

Seattle-Tacoma (SEA)

16:35

Dulles, Washington (IAD)

Valid until 2024-09-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:00, non-stop
Airbus A220-300 (223)

China Eastern MU8804

08:55

Seattle-Tacoma (SEA)

17:00

Dulles, Washington (IAD)

Effective 2024-09-09 through 2024-11-10

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:05, non-stop
Airbus A220-300 (223)

China Eastern MU8804

08:55

Seattle-Tacoma (SEA)

17:03

Dulles, Washington (IAD)

Effective 2024-10-12 through 2024-11-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:08, non-stop
Airbus A220-300 (223)

China Eastern MU8804

09:25

Seattle-Tacoma (SEA)

17:26

Dulles, Washington (IAD)

Effective 2024-11-11 through 2024-12-02

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:01, non-stop
Airbus A220-300 (223)

China Eastern MU8804

11:15

Seattle-Tacoma (SEA)

19:22

Dulles, Washington (IAD)

Effective 2024-09-14 through 2024-10-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 508)

Duration: 5:07, non-stop
Airbus A220-300 (223)

China Eastern MU8804

22:00

Seattle-Tacoma (SEA)

06:00(+1)

Dulles, Washington (IAD)

Effective 2025-03-09 through 2025-04-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 5:00, non-stop
Airbus A220-100 (221)
The flight arrives 1 day after departure.

China Eastern MU8804

22:00

Seattle-Tacoma (SEA)

06:03(+1)

Dulles, Washington (IAD)

Effective 2025-04-14 through 2025-06-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 5:03, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

China Eastern MU8804

22:00

Seattle-Tacoma (SEA)

05:59(+1)

Dulles, Washington (IAD)

Effective from 2025-06-08

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 541)

Duration: 4:59, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.

Qatar Airways QR8844

21:39

Seattle-Tacoma (SEA)

05:40(+1)

Dulles, Washington (IAD)

Effective 2024-12-22 through 2025-01-05

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

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

Duration: 5:01, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR8844

21:40

Seattle-Tacoma (SEA)

05:32(+1)

Dulles, Washington (IAD)

Effective 2024-11-22 through 2024-11-29

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Duration: 4:52, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR8844

21:40

Seattle-Tacoma (SEA)

05:32(+1)

Dulles, Washington (IAD)

Effective 2024-11-24 through 2024-11-27

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

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

Duration: 4:52, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Qatar Airways QR8844

21:40

Seattle-Tacoma (SEA)

05:32(+1)

Dulles, Washington (IAD)

Effective 2024-12-01 through 2024-12-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Duration: 4:52, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Qatar Airways QR8844

22:18

Seattle-Tacoma (SEA)

06:22(+1)

Dulles, Washington (IAD)

Effective 2024-12-20 through 2025-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Duration: 5:04, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.

Brussels Airlines SN8850

08:00

Seattle-Tacoma (SEA)

16:06

Dulles, Washington (IAD)

Effective 2025-01-07 through 2025-02-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

Duration: 5:06, non-stop
Boeing 737-900 (739)

Brussels Airlines SN8850

08:00

Seattle-Tacoma (SEA)

15:53

Dulles, Washington (IAD)

Effective from 2025-02-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

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

Brussels Airlines SN8850

08:05

Seattle-Tacoma (SEA)

16:10

Dulles, Washington (IAD)

Effective 2024-09-26 through 2024-10-26

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by United Airlines. (UA 1360)

Duration: 5:05, non-stop
Boeing 737 MAX 9 (7M9)

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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 4:47 and 5:12.

Return (IAD-SEA) flights

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