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

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-07-26 through 2025-08-02
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 2025-08-03 through 2025-08-17
Mon-Fri 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-08-04 through 2025-08-15
Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737-800 (73H) 4:58 Operates only on 2025-08-09
Mon,Tue,Sat 09:15 Seattle-Tacoma (SEA) 17:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:58 Effective 2025-08-16 through 2025-08-19
Daily 09:55 Seattle-Tacoma (SEA) 17:55 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 5:00 Effective from 2025-10-04
Mon,Thu,Fri,Sun 10:06 Seattle-Tacoma (SEA) 18:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Valid until 2025-05-05
Tue 10:06 Seattle-Tacoma (SEA) 18:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 8 (7M8) 5:07 Valid until 2025-05-13
Mon,Wed-Fri,Sun 10:06 Seattle-Tacoma (SEA) 18:13 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Effective 2025-05-07 through 2025-05-14
Daily 10:06 Seattle-Tacoma (SEA) 18:17 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 5:11 Effective 2025-08-20 through 2025-10-03
Mon-Thu,Sat,Sun 16:00 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 4:59 Effective 2025-05-15 through 2025-05-22
Fri 16:00 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 (73J) 4:59 Operates only on 2025-05-16
Daily 16:00 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 406 Non-stop Boeing 737 MAX 9 (7M9) 4:59 Effective 2025-05-23 through 2025-06-10
Tue-Thu 09:18 Seattle-Tacoma (SEA) 17:15 Dulles, Washington (IAD)
Alaska Airlines AS 408 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-05-15 through 2025-05-21
Mon,Thu-Sun 09:18 Seattle-Tacoma (SEA) 17:15 Dulles, Washington (IAD)
Alaska Airlines AS 408 Non-stop Boeing 737 (73J) 4:57 Effective 2025-05-16 through 2025-05-23
Wed,Sat 09:18 Seattle-Tacoma (SEA) 17:15 Dulles, Washington (IAD)
Alaska Airlines AS 408 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-05-24 through 2025-05-28
Mon,Tue,Thu-Sun 09:18 Seattle-Tacoma (SEA) 17:15 Dulles, Washington (IAD)
Alaska Airlines AS 408 Non-stop Boeing 737 (73J) 4:57 Effective 2025-05-25 through 2025-06-02
Tue,Wed,Sat 09:18 Seattle-Tacoma (SEA) 17:15 Dulles, Washington (IAD)
Alaska Airlines AS 408 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-06-03 through 2025-06-11
Mon,Thu,Fri,Sun 09:18 Seattle-Tacoma (SEA) 17:15 Dulles, Washington (IAD)
Alaska Airlines AS 408 Non-stop Boeing 737 (73J) 4:57 Effective 2025-06-05 through 2025-06-09
Sat 12:36 Seattle-Tacoma (SEA) 20:43 Dulles, Washington (IAD)
Alaska Airlines AS 414 Non-stop Boeing 737-800 (73H) 5:07 Valid until 2025-05-03
Sat 12:36 Seattle-Tacoma (SEA) 20:43 Dulles, Washington (IAD)
Alaska Airlines AS 414 Non-stop Boeing 737 MAX 9 (7M9) 5:07 Operates only on 2025-05-10
Daily 22:08 Seattle-Tacoma (SEA) 06:08 Dulles, Washington (IAD)
Delta Air Lines DL 508 Non-stop Airbus A220-300 (223) 5:00 Effective 2025-12-20 through 2026-01-05
The flight arrives 1 day after departure.
Sun 15:15 Seattle-Tacoma (SEA) 23:11 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 4:56 Operates only on 2025-05-25
Daily 21:50 Seattle-Tacoma (SEA) 05:52 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:02 Effective 2025-05-07 through 2025-05-24
The flight arrives 1 day after departure.
Daily 21:50 Seattle-Tacoma (SEA) 05:52 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:02 Effective 2025-05-26 through 2025-06-07
The flight arrives 1 day after departure.
Daily 21:55 Seattle-Tacoma (SEA) 05:59 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:04 Effective 2025-06-08 through 2025-07-06
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 05:59 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 4:59 Effective 2025-07-07 through 2025-09-07
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:00 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:00 Effective 2025-09-08 through 2025-10-31
The flight arrives 1 day after departure.
Sat 22:00 Seattle-Tacoma (SEA) 05:00 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:00 Operates only on 2025-11-01
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:00 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:00 Effective 2025-11-02 through 2025-12-19
The flight arrives 1 day after departure.
Daily 22:00 Seattle-Tacoma (SEA) 06:01 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 5:01 Effective from 2026-01-06
The flight arrives 1 day after departure.
Daily 22:30 Seattle-Tacoma (SEA) 06:20 Dulles, Washington (IAD)
Delta Air Lines DL 541 Non-stop Airbus A220-300 (223) 4:50 Valid until 2025-05-06
The flight arrives 1 day after departure.
Wed 16:00 Seattle-Tacoma (SEA) 23:59 Dulles, Washington (IAD)
Alaska Airlines AS 610 Non-stop Boeing 737 (73J) 4:59 Operates only on 2025-06-11
Mon-Sat 08:00 Seattle-Tacoma (SEA) 16:11 Dulles, Washington (IAD)
United Airlines UA 1873 Non-stop Boeing 737-900 (739) 5:11 Effective 2025-06-26 through 2025-08-18
Sun 08:14 Seattle-Tacoma (SEA) 16:25 Dulles, Washington (IAD)
United Airlines UA 1873 Non-stop Boeing 737 MAX 8 (7M8) 5:11 Effective 2025-06-29 through 2025-08-17
Daily 22:58 Seattle-Tacoma (SEA) 07:01 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737 MAX 9 (7M9) 5:03 Effective 2025-08-19 through 2025-09-24
The flight arrives 1 day after departure.
Sat 23:11 Seattle-Tacoma (SEA) 07:08 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737-900 (739) 4:57 Effective 2025-05-31 through 2025-06-21
The flight arrives 1 day after departure.
Wed 23:15 Seattle-Tacoma (SEA) 07:12 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737-800 (738) 4:57 Operates only on 2025-05-28
The flight arrives 1 day after departure.
Daily 23:20 Seattle-Tacoma (SEA) 07:17 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-06-26 through 2025-07-03
The flight arrives 1 day after departure.
Daily 23:20 Seattle-Tacoma (SEA) 07:17 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737 MAX 9 (7M9) 4:57 Effective 2025-07-05 through 2025-08-18
The flight arrives 1 day after departure.
Daily 23:20 Seattle-Tacoma (SEA) 07:08 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737-900 (739) 4:48 Effective 2025-12-18 through 2026-01-05
The flight arrives 1 day after departure.
Mon,Tue,Thu,Fri,Sun 23:23 Seattle-Tacoma (SEA) 07:20 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737 MAX 8 (7M8) 4:57 Effective 2025-05-22 through 2025-06-03
The flight arrives 1 day after departure.
Mon-Fri,Sun 23:23 Seattle-Tacoma (SEA) 07:20 Dulles, Washington (IAD)
United Airlines UA 2019 Non-stop Boeing 737 MAX 8 (7M8) 4:57 Effective 2025-06-04 through 2025-06-25
The flight arrives 1 day after departure.
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD)
United Airlines UA 2131 Non-stop Boeing 737-900 (739) 4:58 Effective 2025-10-26 through 2025-12-01
Daily 12:50 Seattle-Tacoma (SEA) 20:48 Dulles, Washington (IAD)
United Airlines UA 2131 Non-stop Boeing 737-900 (739) 4:58 Effective 2025-12-18 through 2026-01-05
Daily 13:09 Seattle-Tacoma (SEA) 21:15 Dulles, Washington (IAD)
United Airlines UA 2131 Non-stop Boeing 737 MAX 8 (7M8) 5:06 Effective 2025-09-25 through 2025-10-25
Daily 08:00 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD)
United Airlines UA 2217 Non-stop Boeing 737 MAX 8 (7M8) 5:10 Effective 2025-08-19 through 2025-09-24
Daily 08:00 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD)
United Airlines UA 2217 Non-stop Boeing 737 MAX 9 (7M9) 5:10 Effective 2025-09-25 through 2025-10-25
Daily 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD)
United Airlines UA 2217 Non-stop Boeing 737-900 (739) 4:53 Effective 2025-10-26 through 2025-12-17
Daily 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD)
United Airlines UA 2217 Non-stop Boeing 737-900 (739) 4:53 Effective from 2026-01-06
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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 AS406
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
Duration: 4:58, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
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
Duration: 4:58, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
09:15
Seattle-Tacoma (SEA)

17:13
Dulles, Washington (IAD)
Effective 2025-08-04 through 2025-08-15
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)
Operates only on 2025-08-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:58, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS406
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
-
Duration: 4:58, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
09:55
Seattle-Tacoma (SEA)

17:55
Dulles, Washington (IAD)
Effective from 2025-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:00, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
10:06
Seattle-Tacoma (SEA)

18:13
Dulles, Washington (IAD)
Valid until 2025-05-05
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
10:06
Seattle-Tacoma (SEA)

18:13
Dulles, Washington (IAD)
Valid until 2025-05-13
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:07, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS406
10:06
Seattle-Tacoma (SEA)

18:13
Dulles, Washington (IAD)
Effective 2025-05-07 through 2025-05-14
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
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
Duration: 5:11, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
16:00
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Effective 2025-05-15 through 2025-05-22
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 4:59, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS406
16:00
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Operates only on 2025-05-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:59, non-stop
Boeing 737 (73J)
Alaska Airlines AS406
16:00
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Effective 2025-05-23 through 2025-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:59, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS408
09:18
Seattle-Tacoma (SEA)

17:15
Dulles, Washington (IAD)
Effective 2025-05-15 through 2025-05-21
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS408
09:18
Seattle-Tacoma (SEA)

17:15
Dulles, Washington (IAD)
Effective 2025-05-16 through 2025-05-23
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Duration: 4:57, non-stop
Boeing 737 (73J)
Alaska Airlines AS408
09:18
Seattle-Tacoma (SEA)

17:15
Dulles, Washington (IAD)
Effective 2025-05-24 through 2025-05-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS408
09:18
Seattle-Tacoma (SEA)

17:15
Dulles, Washington (IAD)
Effective 2025-05-25 through 2025-06-02
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 4:57, non-stop
Boeing 737 (73J)
Alaska Airlines AS408
09:18
Seattle-Tacoma (SEA)

17:15
Dulles, Washington (IAD)
Effective 2025-06-03 through 2025-06-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
Alaska Airlines AS408
09:18
Seattle-Tacoma (SEA)

17:15
Dulles, Washington (IAD)
Effective 2025-06-05 through 2025-06-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:57, non-stop
Boeing 737 (73J)
Alaska Airlines AS414
12:36
Seattle-Tacoma (SEA)

20:43
Dulles, Washington (IAD)
Valid until 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:07, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS414
12:36
Seattle-Tacoma (SEA)

20:43
Dulles, Washington (IAD)
Operates only on 2025-05-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:07, non-stop
Boeing 737 MAX 9 (7M9)
Delta Air Lines DL508
22:08
Seattle-Tacoma (SEA)

06:08(+1)
Dulles, Washington (IAD)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:00, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
15:15
Seattle-Tacoma (SEA)

23:11
Dulles, Washington (IAD)
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:56, non-stop
Airbus A220-300 (223)
Delta Air Lines DL541
21:50
Seattle-Tacoma (SEA)

05:52(+1)
Dulles, Washington (IAD)
Effective 2025-05-07 through 2025-05-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:02, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
21:50
Seattle-Tacoma (SEA)

05:52(+1)
Dulles, Washington (IAD)
Effective 2025-05-26 through 2025-06-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:02, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
21:55
Seattle-Tacoma (SEA)

05:59(+1)
Dulles, Washington (IAD)
Effective 2025-06-08 through 2025-07-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:04, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
22:00
Seattle-Tacoma (SEA)

05:59(+1)
Dulles, Washington (IAD)
Effective 2025-07-07 through 2025-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:59, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
22:00
Seattle-Tacoma (SEA)

06:00(+1)
Dulles, Washington (IAD)
Effective 2025-09-08 through 2025-10-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:00, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
22:00
Seattle-Tacoma (SEA)

05:00(+1)
Dulles, Washington (IAD)
Operates only on 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:00, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
22:00
Seattle-Tacoma (SEA)

06:00(+1)
Dulles, Washington (IAD)
Effective 2025-11-02 through 2025-12-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:00, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
22:00
Seattle-Tacoma (SEA)

06:01(+1)
Dulles, Washington (IAD)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:01, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Delta Air Lines DL541
22:30
Seattle-Tacoma (SEA)

06:20(+1)
Dulles, Washington (IAD)
Valid until 2025-05-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:50, non-stop
Airbus A220-300 (223)
The flight arrives 1 day after departure.
Alaska Airlines AS610
16:00
Seattle-Tacoma (SEA)

23:59
Dulles, Washington (IAD)
Operates only on 2025-06-11
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:59, non-stop
Boeing 737 (73J)
United Airlines UA1873
08:00
Seattle-Tacoma (SEA)

16:11
Dulles, Washington (IAD)
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 5:11, non-stop
Boeing 737-900 (739)
United Airlines UA1873
08:14
Seattle-Tacoma (SEA)

16:25
Dulles, Washington (IAD)
Effective 2025-06-29 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:11, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA2019
22:58
Seattle-Tacoma (SEA)

07:01(+1)
Dulles, Washington (IAD)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:03, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
United Airlines UA2019
23:11
Seattle-Tacoma (SEA)

07:08(+1)
Dulles, Washington (IAD)
Effective 2025-05-31 through 2025-06-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:57, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
United Airlines UA2019
23:15
Seattle-Tacoma (SEA)

07:12(+1)
Dulles, Washington (IAD)
Operates only on 2025-05-28
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:57, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
United Airlines UA2019
23:20
Seattle-Tacoma (SEA)

07:17(+1)
Dulles, Washington (IAD)
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
United Airlines UA2019
23:20
Seattle-Tacoma (SEA)

07:17(+1)
Dulles, Washington (IAD)
Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:57, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
United Airlines UA2019
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
Duration: 4:48, non-stop
Boeing 737-900 (739)
The flight arrives 1 day after departure.
United Airlines UA2019
23:23
Seattle-Tacoma (SEA)

07:20(+1)
Dulles, Washington (IAD)
Effective 2025-05-22 through 2025-06-03
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:57, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
United Airlines UA2019
23:23
Seattle-Tacoma (SEA)

07:20(+1)
Dulles, Washington (IAD)
Effective 2025-06-04 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:57, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
United Airlines UA2131
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
Duration: 4:58, non-stop
Boeing 737-900 (739)
United Airlines UA2131
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
Duration: 4:58, non-stop
Boeing 737-900 (739)
United Airlines UA2131
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
Duration: 5:06, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA2217
08:00
Seattle-Tacoma (SEA)

16:10
Dulles, Washington (IAD)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:10, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA2217
08:00
Seattle-Tacoma (SEA)

16:10
Dulles, Washington (IAD)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:10, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA2217
08:00
Seattle-Tacoma (SEA)

15:53
Dulles, Washington (IAD)
Effective 2025-10-26 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:53, non-stop
Boeing 737-900 (739)
United Airlines UA2217
08:00
Seattle-Tacoma (SEA)

15:53
Dulles, Washington (IAD)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:53, non-stop
Boeing 737-900 (739)
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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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