United Airlines flights from Seattle-Tacoma (SEA) to Dulles, Washington (IAD).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:00 Seattle-Tacoma (SEA) 15:53 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737-900 (739) 4:53 Effective from 2024-03-31
Sat 08:04 Seattle-Tacoma (SEA) 15:58 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737-900 (739) 4:54 Valid until 2024-01-06
Sun 08:04 Seattle-Tacoma (SEA) 15:58 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Airbus A319 (319) 4:54 Valid until 2024-01-07
Mon 08:04 Seattle-Tacoma (SEA) 15:58 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737-700 (73G) 4:54 Valid until 2024-01-01
Tue-Fri 08:04 Seattle-Tacoma (SEA) 15:58 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737 MAX 8 (7M8) 4:54 Valid until 2024-01-05
Mon 08:04 Seattle-Tacoma (SEA) 15:58 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Airbus A319 (319) 4:54 Operates only on 2024-01-08
Mon-Sat 08:15 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737 MAX 9 (7M9) 4:55 Effective 2024-03-07 through 2024-03-16
Daily 08:15 Seattle-Tacoma (SEA) 16:10 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737 MAX 9 (7M9) 4:55 Effective 2024-03-17 through 2024-03-30
Daily 08:25 Seattle-Tacoma (SEA) 16:20 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737 MAX 9 (7M9) 4:55 Effective 2024-02-15 through 2024-03-06
Sun 08:26 Seattle-Tacoma (SEA) 16:21 Dulles, Washington (IAD)
United Airlines UA 1360 Non-stop Boeing 737 MAX 9 (7M9) 4:55 Operates only on 2024-03-10
Mon 13:00 Seattle-Tacoma (SEA) 20:54 Dulles, Washington (IAD)
United Airlines UA 1370 Non-stop Boeing 737-800 (738) 4:54 Valid until 2024-01-01
Tue-Fri 13:00 Seattle-Tacoma (SEA) 20:54 Dulles, Washington (IAD)
United Airlines UA 1370 Non-stop Airbus A320 (320) 4:54 Valid until 2024-01-05
Tue 08:15 Seattle-Tacoma (SEA) 16:07 Dulles, Washington (IAD)
United Airlines UA 1521 Non-stop Airbus A319 (319) 4:52 Operates only on 2024-01-09
Daily 08:30 Seattle-Tacoma (SEA) 16:22 Dulles, Washington (IAD)
United Airlines UA 1521 Non-stop Boeing 737 MAX 9 (7M9) 4:52 Effective 2024-01-10 through 2024-02-14
Daily 12:50 Seattle-Tacoma (SEA) 20:38 Dulles, Washington (IAD)
United Airlines UA 2275 Non-stop Boeing 737-900 (739) 4:48 Effective from 2024-05-23
Non-Direct Flights:
Daily 10:49 Seattle-Tacoma (SEA) 21:01 Dulles, Washington (IAD)
United Airlines UA 656 1-stop Boeing 737-800 (738) 7:12 Effective 2024-03-31 through 2024-05-22
Daily 11:00 Seattle-Tacoma (SEA) 21:05 Dulles, Washington (IAD)
United Airlines UA 656 1-stop Boeing 737-800 (738) 7:05 Effective 2024-09-26 through 2024-10-26
Daily 11:05 Seattle-Tacoma (SEA) 21:05 Dulles, Washington (IAD)
United Airlines UA 656 1-stop Boeing 737-900 (739) 7:00 Effective 2024-05-23 through 2024-09-25
Daily 11:05 Seattle-Tacoma (SEA) 21:05 Dulles, Washington (IAD)
United Airlines UA 656 1-stop Boeing 737-900 (739) 7:00 Effective from 2024-10-27
Daily 07:00 Seattle-Tacoma (SEA) 20:50 Dulles, Washington (IAD)
United Airlines UA 1370 1-stop Boeing 737-900 (739) 10:50 Effective 2024-03-31 through 2024-05-22
Daily 07:00 Seattle-Tacoma (SEA) 20:37 Dulles, Washington (IAD)
United Airlines UA 1370 1-stop Boeing 737-800 (738) 10:37 Effective 2024-09-26 through 2024-10-26
Daily 07:03 Seattle-Tacoma (SEA) 20:37 Dulles, Washington (IAD)
United Airlines UA 1370 1-stop Boeing 737-900 (739) 10:34 Effective 2024-05-23 through 2024-09-25
Daily 07:03 Seattle-Tacoma (SEA) 20:37 Dulles, Washington (IAD)
United Airlines UA 1370 1-stop Boeing 737-900 (739) 10:34 Effective from 2024-10-27
Daily 12:28 Seattle-Tacoma (SEA) 23:51 Dulles, Washington (IAD)
United Airlines UA 1855 1-stop Boeing 737 MAX 9 (7M9) 8:23 Effective 2024-05-23 through 2024-09-25
Daily 12:28 Seattle-Tacoma (SEA) 23:51 Dulles, Washington (IAD)
United Airlines UA 1855 1-stop Boeing 737 MAX 9 (7M9) 8:23 Effective from 2024-10-27
Daily 12:34 Seattle-Tacoma (SEA) 23:51 Dulles, Washington (IAD)
United Airlines UA 1855 1-stop Boeing 737-800 (738) 8:17 Effective 2024-09-26 through 2024-10-26
Sat 05:00 Seattle-Tacoma (SEA) 14:56 Dulles, Washington (IAD)
United Airlines UA 2087 1-stop Boeing 737 MAX 9 (7M9) 6:56 Valid until 2024-01-06
Tue-Fri,Sun 05:08 Seattle-Tacoma (SEA) 14:56 Dulles, Washington (IAD)
United Airlines UA 2087 1-stop Boeing 737 MAX 9 (7M9) 6:48 Valid until 2024-01-07
Mon 05:08 Seattle-Tacoma (SEA) 14:56 Dulles, Washington (IAD)
United Airlines UA 2087 1-stop Boeing 737-800 (738) 6:48 Operates only on 2024-01-01
Mon 05:08 Seattle-Tacoma (SEA) 14:56 Dulles, Washington (IAD)
United Airlines UA 2087 1-stop Boeing 737-900 (739) 6:48 Operates only on 2024-01-08
Tue-Sat 07:00 Seattle-Tacoma (SEA) 21:17 Dulles, Washington (IAD)
United Airlines UA 1240 2-stop Boeing 737 MAX 9 (7M9) 11:17 Valid until 2024-01-06
Sun 07:00 Seattle-Tacoma (SEA) 21:17 Dulles, Washington (IAD)
United Airlines UA 1240 2-stop Boeing 737-800 (738) 11:17 Valid until 2024-01-07
Mon 07:00 Seattle-Tacoma (SEA) 21:17 Dulles, Washington (IAD)
United Airlines UA 1240 2-stop Boeing 737 MAX 9 (7M9) 11:17 Operates only on 2024-01-08




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United Airlines flights from Seattle-Tacoma (SEA) to Dulles, Washington (IAD).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1360
08:00
Seattle-Tacoma (SEA)

15:53
Dulles, Washington (IAD)
Effective from 2024-03-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:53, non-stop
Boeing 737-900 (739)
United Airlines UA1360
08:04
Seattle-Tacoma (SEA)

15:58
Dulles, Washington (IAD)
Valid until 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:54, non-stop
Boeing 737-900 (739)
United Airlines UA1360
08:04
Seattle-Tacoma (SEA)

15:58
Dulles, Washington (IAD)
Valid until 2024-01-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:54, non-stop
Airbus A319 (319)
United Airlines UA1360
08:04
Seattle-Tacoma (SEA)

15:58
Dulles, Washington (IAD)
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:54, non-stop
Boeing 737-700 (73G)
United Airlines UA1360
08:04
Seattle-Tacoma (SEA)

15:58
Dulles, Washington (IAD)
Valid until 2024-01-05
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:54, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1360
08:04
Seattle-Tacoma (SEA)

15:58
Dulles, Washington (IAD)
Operates only on 2024-01-08
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:54, non-stop
Airbus A319 (319)
United Airlines UA1360
08:15
Seattle-Tacoma (SEA)

16:10
Dulles, Washington (IAD)
Effective 2024-03-07 through 2024-03-16
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 4:55, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1360
08:15
Seattle-Tacoma (SEA)

16:10
Dulles, Washington (IAD)
Effective 2024-03-17 through 2024-03-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:55, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1360
08:25
Seattle-Tacoma (SEA)

16:20
Dulles, Washington (IAD)
Effective 2024-02-15 through 2024-03-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:55, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1360
08:26
Seattle-Tacoma (SEA)

16:21
Dulles, Washington (IAD)
Operates only on 2024-03-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:55, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1370
13:00
Seattle-Tacoma (SEA)

20:54
Dulles, Washington (IAD)
Valid until 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:54, non-stop
Boeing 737-800 (738)
United Airlines UA1370
13:00
Seattle-Tacoma (SEA)

20:54
Dulles, Washington (IAD)
Valid until 2024-01-05
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:54, non-stop
Airbus A320 (320)
United Airlines UA1521
08:15
Seattle-Tacoma (SEA)

16:07
Dulles, Washington (IAD)
Operates only on 2024-01-09
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:52, non-stop
Airbus A319 (319)
United Airlines UA1521
08:30
Seattle-Tacoma (SEA)

16:22
Dulles, Washington (IAD)
Effective 2024-01-10 through 2024-02-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:52, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA2275
12:50
Seattle-Tacoma (SEA)

20:38
Dulles, Washington (IAD)
Effective from 2024-05-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:48, non-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA656
10:49
Seattle-Tacoma (SEA)

21:01
Dulles, Washington (IAD)
Effective 2024-03-31 through 2024-05-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:12, 1-stop
Boeing 737-800 (738)
United Airlines UA656
11:00
Seattle-Tacoma (SEA)

21:05
Dulles, Washington (IAD)
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:05, 1-stop
Boeing 737-800 (738)
United Airlines UA656
11:05
Seattle-Tacoma (SEA)

21:05
Dulles, Washington (IAD)
Effective 2024-05-23 through 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:00, 1-stop
Boeing 737-900 (739)
United Airlines UA656
11:05
Seattle-Tacoma (SEA)

21:05
Dulles, Washington (IAD)
Effective from 2024-10-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:00, 1-stop
Boeing 737-900 (739)
United Airlines UA1370
07:00
Seattle-Tacoma (SEA)

20:50
Dulles, Washington (IAD)
Effective 2024-03-31 through 2024-05-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:50, 1-stop
Boeing 737-900 (739)
United Airlines UA1370
07:00
Seattle-Tacoma (SEA)

20:37
Dulles, Washington (IAD)
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:37, 1-stop
Boeing 737-800 (738)
United Airlines UA1370
07:03
Seattle-Tacoma (SEA)

20:37
Dulles, Washington (IAD)
Effective 2024-05-23 through 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:34, 1-stop
Boeing 737-900 (739)
United Airlines UA1370
07:03
Seattle-Tacoma (SEA)

20:37
Dulles, Washington (IAD)
Effective from 2024-10-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 10:34, 1-stop
Boeing 737-900 (739)
United Airlines UA1855
12:28
Seattle-Tacoma (SEA)

23:51
Dulles, Washington (IAD)
Effective 2024-05-23 through 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:23, 1-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1855
12:28
Seattle-Tacoma (SEA)

23:51
Dulles, Washington (IAD)
Effective from 2024-10-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:23, 1-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1855
12:34
Seattle-Tacoma (SEA)

23:51
Dulles, Washington (IAD)
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:17, 1-stop
Boeing 737-800 (738)
United Airlines UA2087
05:00
Seattle-Tacoma (SEA)

14:56
Dulles, Washington (IAD)
Valid until 2024-01-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:56, 1-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA2087
05:08
Seattle-Tacoma (SEA)

14:56
Dulles, Washington (IAD)
Valid until 2024-01-07
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 6:48, 1-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA2087
05:08
Seattle-Tacoma (SEA)

14:56
Dulles, Washington (IAD)
Operates only on 2024-01-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:48, 1-stop
Boeing 737-800 (738)
United Airlines UA2087
05:08
Seattle-Tacoma (SEA)

14:56
Dulles, Washington (IAD)
Operates only on 2024-01-08
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:48, 1-stop
Boeing 737-900 (739)
United Airlines UA1240
07:00
Seattle-Tacoma (SEA)

21:17
Dulles, Washington (IAD)
Valid until 2024-01-06
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 11:17, 2-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1240
07:00
Seattle-Tacoma (SEA)

21:17
Dulles, Washington (IAD)
Valid until 2024-01-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 11:17, 2-stop
Boeing 737-800 (738)
United Airlines UA1240
07:00
Seattle-Tacoma (SEA)

21:17
Dulles, Washington (IAD)
Operates only on 2024-01-08
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 11:17, 2-stop
Boeing 737 MAX 9 (7M9)
  • 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 4:55.
All SEA-IAD flights
All United Airlines flights
Return (IAD-SEA) flights
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