Alaska Airlines flights from Ronald Reagan Washington (DCA) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Thu,Sat,Sun 08:00 Ronald Reagan Washington (DCA) 2 10:48 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:48 Valid until 2024-09-05
Mon,Wed-Sun 08:00 Ronald Reagan Washington (DCA) 2 10:48 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:48 Effective 2024-09-06 through 2024-09-16
Tue 08:00 Ronald Reagan Washington (DCA) 2 10:48 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737 MAX 8 (7M8) 5:48 Operates only on 2024-09-10
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:48 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:48 Effective 2024-09-17 through 2024-09-30
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:54 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:54 Effective 2024-10-01 through 2024-10-10
Fri 08:00 Ronald Reagan Washington (DCA) 2 10:54 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737 MAX 8 (7M8) 5:54 Operates only on 2024-10-11
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:54 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:54 Effective 2024-10-12 through 2024-10-24
Fri 08:00 Ronald Reagan Washington (DCA) 2 10:54 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737 MAX 8 (7M8) 5:54 Operates only on 2024-10-25
Sat 08:00 Ronald Reagan Washington (DCA) 2 10:54 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:54 Operates only on 2024-10-26
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:58 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:58 Effective 2024-10-27 through 2024-11-21
Daily 08:00 Ronald Reagan Washington (DCA) 2 11:05 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 6:05 Effective 2024-11-22 through 2024-12-18
Daily 08:00 Ronald Reagan Washington (DCA) 2 11:00 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 6:00 Effective 2024-12-19 through 2025-01-05
Daily 08:00 Ronald Reagan Washington (DCA) 2 11:04 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 6:04 Effective 2025-01-06 through 2025-03-18
Daily 08:00 Ronald Reagan Washington (DCA) 2 10:54 Seattle-Tacoma (SEA)
Alaska Airlines AS 1 Non-stop Boeing 737-800 (73H) 5:54 Effective from 2025-03-19
Daily 17:20 Ronald Reagan Washington (DCA) 2 20:29 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 6:09 Effective 2024-12-03 through 2024-12-18
Daily 17:25 Ronald Reagan Washington (DCA) 2 20:19 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:54 Effective from 2025-03-19
Daily 17:39 Ronald Reagan Washington (DCA) 2 20:34 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2024-10-27 through 2024-11-04
Tue 17:39 Ronald Reagan Washington (DCA) 2 20:34 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Effective 2024-11-05 through 2024-11-12
Mon,Wed-Sun 17:39 Ronald Reagan Washington (DCA) 2 20:34 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2024-11-06 through 2024-11-17
Mon,Thu 17:39 Ronald Reagan Washington (DCA) 2 20:34 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Effective 2024-11-18 through 2024-11-21
Tue,Wed 17:39 Ronald Reagan Washington (DCA) 2 20:34 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2024-11-19 through 2024-11-20
Daily 17:39 Ronald Reagan Washington (DCA) 2 20:45 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 6:06 Effective 2025-01-06 through 2025-03-18
Mon,Tue,Thu,Sat 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2024-10-01 through 2024-10-07
Tue,Wed,Fri,Sun 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Effective 2024-10-02 through 2024-10-09
Tue-Thu,Sat,Sun 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Effective 2024-10-10 through 2024-10-17
Mon,Fri 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2024-10-11 through 2024-10-14
Wed-Fri 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Effective 2024-10-18 through 2024-10-25
Mon,Tue,Sat,Sun 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2024-10-19 through 2024-10-22
Sat 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Operates only on 2024-10-26
Mon,Tue,Fri-Sun 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:55 Effective 2024-11-22 through 2024-12-02
Wed 17:40 Ronald Reagan Washington (DCA) 2 20:35 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Operates only on 2024-11-27
Daily 17:40 Ronald Reagan Washington (DCA) 2 20:48 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 6:08 Effective 2024-12-19 through 2025-01-05
Mon-Fri 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:53 Valid until 2024-09-06
Sat,Sun 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:53 Valid until 2024-09-01
Mon-Sat 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:53 Effective 2024-09-07 through 2024-09-13
Sat,Sun 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:53 Effective 2024-09-08 through 2024-09-14
Mon,Tue,Thu,Fri,Sun 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:53 Effective 2024-09-15 through 2024-09-20
Wed,Sat,Sun 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:53 Effective 2024-09-18 through 2024-09-25
Mon,Tue,Thu,Sat,Sun 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737-800 (73H) 5:53 Effective 2024-09-23 through 2024-09-30
Fri 17:49 Ronald Reagan Washington (DCA) 2 20:42 Seattle-Tacoma (SEA)
Alaska Airlines AS 3 Non-stop Boeing 737 MAX 8 (7M8) 5:53 Operates only on 2024-09-27




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Alaska Airlines flights from Ronald Reagan Washington (DCA) to Seattle-Tacoma (SEA).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:48
Seattle-Tacoma (SEA)
Valid until 2024-09-05
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 5:48, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:48
Seattle-Tacoma (SEA)
Effective 2024-09-06 through 2024-09-16
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 5:48, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:48
Seattle-Tacoma (SEA)
Operates only on 2024-09-10
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:48, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:48
Seattle-Tacoma (SEA)
Effective 2024-09-17 through 2024-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:48, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:54
Seattle-Tacoma (SEA)
Effective 2024-10-01 through 2024-10-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:54, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:54
Seattle-Tacoma (SEA)
Operates only on 2024-10-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:54, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:54
Seattle-Tacoma (SEA)
Effective 2024-10-12 through 2024-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:54, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:54
Seattle-Tacoma (SEA)
Operates only on 2024-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:54, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:54
Seattle-Tacoma (SEA)
Operates only on 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:54, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:58
Seattle-Tacoma (SEA)
Effective 2024-10-27 through 2024-11-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:58, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

11:05
Seattle-Tacoma (SEA)
Effective 2024-11-22 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:05, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

11:00
Seattle-Tacoma (SEA)
Effective 2024-12-19 through 2025-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:00, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

11:04
Seattle-Tacoma (SEA)
Effective 2025-01-06 through 2025-03-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:04, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS1
08:00
Ronald Reagan Washington (DCA) 2

10:54
Seattle-Tacoma (SEA)
Effective from 2025-03-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:54, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:20
Ronald Reagan Washington (DCA) 2

20:29
Seattle-Tacoma (SEA)
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:09, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:25
Ronald Reagan Washington (DCA) 2

20:19
Seattle-Tacoma (SEA)
Effective from 2025-03-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:54, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:39
Ronald Reagan Washington (DCA) 2

20:34
Seattle-Tacoma (SEA)
Effective 2024-10-27 through 2024-11-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:39
Ronald Reagan Washington (DCA) 2

20:34
Seattle-Tacoma (SEA)
Effective 2024-11-05 through 2024-11-12
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:39
Ronald Reagan Washington (DCA) 2

20:34
Seattle-Tacoma (SEA)
Effective 2024-11-06 through 2024-11-17
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:39
Ronald Reagan Washington (DCA) 2

20:34
Seattle-Tacoma (SEA)
Effective 2024-11-18 through 2024-11-21
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:39
Ronald Reagan Washington (DCA) 2

20:34
Seattle-Tacoma (SEA)
Effective 2024-11-19 through 2024-11-20
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:39
Ronald Reagan Washington (DCA) 2

20:45
Seattle-Tacoma (SEA)
Effective 2025-01-06 through 2025-03-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:06, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-10-01 through 2024-10-07
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-10-02 through 2024-10-09
Mon
-
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-10-10 through 2024-10-17
Mon
-
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-10-11 through 2024-10-14
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-10-18 through 2024-10-25
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-10-19 through 2024-10-22
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Operates only on 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Effective 2024-11-22 through 2024-12-02
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:35
Seattle-Tacoma (SEA)
Operates only on 2024-11-27
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:40
Ronald Reagan Washington (DCA) 2

20:48
Seattle-Tacoma (SEA)
Effective 2024-12-19 through 2025-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:08, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Valid until 2024-09-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:53, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Valid until 2024-09-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 5:53, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Effective 2024-09-07 through 2024-09-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 5:53, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Effective 2024-09-08 through 2024-09-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 5:53, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Effective 2024-09-15 through 2024-09-20
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 5:53, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Effective 2024-09-18 through 2024-09-25
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
Sun
Duration: 5:53, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Effective 2024-09-23 through 2024-09-30
Mon
Tue
Wed
-
Thu
Fri
-
Sat
Sun
Duration: 5:53, non-stop
Boeing 737-800 (73H)
Alaska Airlines AS3
17:49
Ronald Reagan Washington (DCA) 2

20:42
Seattle-Tacoma (SEA)
Operates only on 2024-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:53, non-stop
Boeing 737 MAX 8 (7M8)
  • A domestic route departing from the Ronald Reagan Washington airport (DCA) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 2321 miles, or 3736 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-8 . 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 5:48 and 6:09.
All DCA-SEA flights
All Alaska Airlines flights
Return (SEA-DCA) flights
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