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

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 23:30 Seattle-Tacoma (SEA) 07:36 Dulles, Washington (IAD)
Alaska Airlines AS 307 Non-stop Boeing 737 (73J) 5:06 Effective 2025-05-15 through 2025-06-11
The flight arrives 1 day after departure.
Tue,Wed,Sat 16:00 Seattle-Tacoma (SEA) 23:58 Dulles, Washington (IAD)
Alaska Airlines AS 345 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Valid until 2025-05-07
Sat 16:00 Seattle-Tacoma (SEA) 23:58 Dulles, Washington (IAD)
Alaska Airlines AS 345 Non-stop Boeing 737 (73J) 4:58 Operates only on 2025-05-10
Tue,Wed 16:00 Seattle-Tacoma (SEA) 23:58 Dulles, Washington (IAD)
Alaska Airlines AS 345 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-05-13 through 2025-05-14
Daily 15:55 Seattle-Tacoma (SEA) 23:58 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:03 Effective 2025-08-20 through 2025-10-03
Mon,Tue,Thu-Sat 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-06-12 through 2025-06-21
Wed,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-06-15 through 2025-06-22
Mon,Wed,Fri,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-06-23 through 2025-06-29
Mon,Tue,Thu,Sat 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-06-24 through 2025-07-01
Mon,Wed,Sat 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-07-02 through 2025-07-07
Tue-Fri,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-07-03 through 2025-07-10
Daily 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-07-11 through 2025-07-19
Mon,Tue,Thu,Sat,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-07-20 through 2025-07-27
Mon-Wed,Fri 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-07-23 through 2025-08-01
Mon,Tue,Thu,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-07-31 through 2025-08-07
Wed,Fri,Sat 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-08-02 through 2025-08-08
Mon,Tue,Thu,Sat,Sun 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Effective 2025-08-09 through 2025-08-17
Mon,Wed,Fri 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 5:00 Effective 2025-08-13 through 2025-08-18
Tue 15:59 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 5:00 Operates only on 2025-08-19
Daily 16:00 Seattle-Tacoma (SEA) 23:49 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 4:49 Effective 2025-10-04 through 2025-11-20
Mon,Thu,Sun 16:24 Seattle-Tacoma (SEA) 00:23 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 4:59 Valid until 2025-05-01
The flight arrives 1 day after departure.
Fri 16:24 Seattle-Tacoma (SEA) 00:23 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737-800 (73H) 4:59 Valid until 2025-05-09
The flight arrives 1 day after departure.
Sun 16:24 Seattle-Tacoma (SEA) 00:23 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 (73J) 4:59 Operates only on 2025-05-04
The flight arrives 1 day after departure.
Mon,Thu,Sun 16:24 Seattle-Tacoma (SEA) 00:23 Dulles, Washington (IAD)
Alaska Airlines AS 348 Non-stop Boeing 737 MAX 9 (7M9) 4:59 Effective 2025-05-05 through 2025-05-12
The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:55 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 5:00 Effective 2025-10-04 through 2025-10-31
The flight arrives 1 day after departure.
Sat 21:55 Seattle-Tacoma (SEA) 04:55 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 5:00 Operates only on 2025-11-01
The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:55 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 5:00 Effective 2025-11-02 through 2026-01-06
The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:55 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 5:00 Effective from 2026-02-12
The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 4:57 Effective 2025-06-12 through 2025-06-28
The flight arrives 1 day after departure.
Fri 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-06-13 through 2025-06-27
The flight arrives 1 day after departure.
Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Operates only on 2025-06-29
The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 4:57 Effective 2025-06-30 through 2025-07-19
The flight arrives 1 day after departure.
Fri 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-11 through 2025-07-18
The flight arrives 1 day after departure.
Fri,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-20 through 2025-07-25
The flight arrives 1 day after departure.
Mon-Thu,Sat,Sun 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 4:57 Effective 2025-07-21 through 2025-08-18
The flight arrives 1 day after departure.
Fri 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-08-01 through 2025-08-15
The flight arrives 1 day after departure.
Tue 23:30 Seattle-Tacoma (SEA) 07:27 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Operates only on 2025-08-19
The flight arrives 1 day after departure.
Daily 23:30 Seattle-Tacoma (SEA) 07:32 Dulles, Washington (IAD)
Alaska Airlines AS 367 Non-stop Boeing 737 (73J) 5:02 Effective 2025-08-20 through 2025-10-03
The flight arrives 1 day after departure.
Tue,Fri,Sun 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD)
Alaska Airlines AS 369 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Valid until 2025-05-09
The flight arrives 1 day after departure.
Mon,Wed,Thu 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD)
Alaska Airlines AS 369 Non-stop Boeing 737 (73J) 5:03 Valid until 2025-05-08
The flight arrives 1 day after departure.
Mon,Wed,Sun 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD)
Alaska Airlines AS 369 Non-stop Boeing 737 (73J) 5:03 Effective 2025-05-11 through 2025-05-14
The flight arrives 1 day after departure.
Tue 23:40 Seattle-Tacoma (SEA) 07:43 Dulles, Washington (IAD)
Alaska Airlines AS 369 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Operates only on 2025-05-13
The flight arrives 1 day after departure.
Tue,Thu,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-06-12 through 2025-06-17
Mon,Wed-Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-06-13 through 2025-06-19
Tue,Fri,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-06-20 through 2025-06-24
Mon,Wed-Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-06-21 through 2025-06-27
Sat,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-06-28 through 2025-06-29
Daily 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-06-30 through 2025-07-12
Mon,Sat,Sun 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 4:58 Effective 2025-07-13 through 2025-07-20
Mon-Fri 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-07-15 through 2025-07-25
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All airlines flying from Seattle-Tacoma (SEA) to Dulles, Washington (IAD).
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS307
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
Duration: 5:06, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS345
16:00
Seattle-Tacoma (SEA)

23:58
Dulles, Washington (IAD)
Valid until 2025-05-07
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS345
16:00
Seattle-Tacoma (SEA)

23:58
Dulles, Washington (IAD)
Operates only on 2025-05-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:58, non-stop
Boeing 737 (73J)
Alaska Airlines AS345
16:00
Seattle-Tacoma (SEA)

23:58
Dulles, Washington (IAD)
Effective 2025-05-13 through 2025-05-14
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
15:55
Seattle-Tacoma (SEA)

23:58
Dulles, Washington (IAD)
Effective 2025-08-20 through 2025-10-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:03, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
15:59
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Effective 2025-06-12 through 2025-06-21
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
15:59
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Effective 2025-06-15 through 2025-06-22
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
15:59
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Effective 2025-06-23 through 2025-06-29
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
15:59
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Effective 2025-06-24 through 2025-07-01
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
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
-
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
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
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
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
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
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
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
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
-
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
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
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
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
-
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
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
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
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
-
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
15:59
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Operates only on 2025-08-19
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:00, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS348
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
Duration: 4:49, non-stop
Boeing 737 (73J)
Alaska Airlines AS348
16:24
Seattle-Tacoma (SEA)

00:23(+1)
Dulles, Washington (IAD)
Valid until 2025-05-01
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 4:59, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS348
16:24
Seattle-Tacoma (SEA)

00:23(+1)
Dulles, Washington (IAD)
Valid until 2025-05-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:59, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Alaska Airlines AS348
16:24
Seattle-Tacoma (SEA)

00:23(+1)
Dulles, Washington (IAD)
Operates only on 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:59, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS348
16:24
Seattle-Tacoma (SEA)

00:23(+1)
Dulles, Washington (IAD)
Effective 2025-05-05 through 2025-05-12
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 4:59, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 5:00, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
21:55
Seattle-Tacoma (SEA)

04:55(+1)
Dulles, Washington (IAD)
Operates only on 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:00, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 5:00, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
21:55
Seattle-Tacoma (SEA)

05:55(+1)
Dulles, Washington (IAD)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:00, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 4:57, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
23:30
Seattle-Tacoma (SEA)

07:27(+1)
Dulles, Washington (IAD)
Operates only on 2025-06-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 4:57, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 4:57, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
23:30
Seattle-Tacoma (SEA)

07:27(+1)
Dulles, Washington (IAD)
Operates only on 2025-08-19
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS367
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
Duration: 5:02, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS369
23:40
Seattle-Tacoma (SEA)

07:43(+1)
Dulles, Washington (IAD)
Valid until 2025-05-09
Mon
-
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS369
23:40
Seattle-Tacoma (SEA)

07:43(+1)
Dulles, Washington (IAD)
Valid until 2025-05-08
Mon
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:03, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS369
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
Duration: 5:03, non-stop
Boeing 737 (73J)
The flight arrives 1 day after departure.
Alaska Airlines AS369
23:40
Seattle-Tacoma (SEA)

07:43(+1)
Dulles, Washington (IAD)
Operates only on 2025-05-13
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Alaska Airlines AS406
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
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
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
-
Duration: 4:58, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
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
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
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
-
Duration: 4:58, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
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
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
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
Duration: 4:58, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
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
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
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
-
Duration: 4:58, non-stop
Boeing 737 (73J)
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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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