Airlines with flights from Washington to Seattle
There are 7 airlines with scheduled flights between DCA and SEA. Both Alaska Airlines and Delta operates non-stop flights from Reagan National to Seattle Airport and the flight time is 5 hours and 58 minutes.
There are 7 airlines with scheduled flights between DCA and SEA. Both Alaska Airlines and Delta operates non-stop flights from Reagan National to Seattle Airport and the flight time is 5 hours and 58 minutes. Choose airline
Direct
Non-stop
5h 58min
Direct
Non-stop
6h 5min
Via Saint Louis
7h 10min
Via Detroit
7h 15min
Via Chicago
7h 15min
Via Minneapolis
7h 25min
Via Chicago
7h 25min
Via Chicago
7h 29min
Via Charlotte
7h 45min
Via Salt Lake City
7h 51min
Via Denver
7h 55min
Via Portland
7h 58min
Via Atlanta
8h 3min
Via New York
8h 15min
Via Dallas
8h 16min
Via Philadelphia
8h 24min
Via Denver
8h 40min
Via New York
8h 45min
Via Las Vegas
8h 55min
Via Denver
10h 1min
NEW
Via Dallas
8h 5min
NEW
Via Nashville
7h 35min
NEW
Via Sacramento
9h 35min
NEW
Via Columbus
11h 30min
NEW
Starts 04/07
Via Kansas City
7h 35min
NEW
Starts 09/09
Via Boston
9h 48min
Schedules
Non-stop with Alaska Airlines
-
Total flight time: 5 hours and 58 minutes
-
One World Alliance
-
Seattle is a Alaska Airlines hub (Primary hub).
-
14 flights per week
-
Boeing 737-800 (winglets) Passenger/BBJ2Boeing 737MAX 8 Passenger
-
Business and first class available
DCA
Direct
SEA
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
AS1
08:00
08:00
08:00
08:00
08:00
08:00
08:00
AS3
17:00
17:00
17:00
17:00
17:00
17:00
17:00
The timetable & schedule information was updated at 2026-04-21
Non-stop with Delta Air Lines
-
Total flight time: 6 hours and 5 minutes
-
Sky Team Alliance
-
Seattle is a Delta Air Lines hub.
-
13 flights per week
-
Airbus A321neo
-
Business and first class available
DCA
Direct
SEA
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL786
16:36
16:36
16:36
16:36
16:36
16:36
16:36
The timetable & schedule information was updated at 2026-04-21
Via Saint Louis with Southwest Airlines
-
Total flight time: 7h 10m - 11h 50m.
-
Low-cost airline
-
2 flights per week
DCA
Via STL
SEA
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
WN4853
WN5109
WN5109
----
----
----
08:00
----
----
----
WN4853
WN3981
WN3981
08:00
08:00
08:00
----
08:00
----
08:00
WN296
WN3981
WN3981
----
----
----
----
----
08:00
----
The timetable & schedule information was updated at 2026-04-21
Via Detroit with Delta Air Lines
-
Total flight time: 7h 15m - 9h 22m.
-
Sky Team Alliance
-
Seattle is a Delta Air Lines hub.
-
119 flights per week
-
Airbus A321neo
DCA
Via DTW
SEA
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL2869
DL734
DL734
06:00
06:00
06:00
06:00
06:00
----
06:00
DL5839
DL734
DL734
----
----
----
----
----
06:00
----
DL1558
DL728
DL728
09:39
09:39
09:39
09:39
09:39
09:39
09:39
DL2476
DL944
DL944
12:29
12:29
12:29
12:29
12:29
12:29
12:29
DL1454
DL565
DL565
17:29
17:29
17:29
17:29
17:29
----
17:29
The timetable & schedule information was updated at 2026-04-21
Via Chicago with Southwest Airlines
-
Total flight time: 7h 15m - 11h 25m.
-
Low-cost airline
-
55 flights per week
DCA
Via MDW
SEA
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
WN1442
WN2835
WN2835
07:30
----
----
07:30
07:30
----
----
WN1442
WN1155
WN1155
----
----
----
----
----
----
07:55
WN277
WN4061
WN4061
----
----
----
----
----
13:10
----
WN2904
WN4144
WN4144
----
----
----
----
----
18:40
----
WN2710
WN4144
WN4144
----
18:55
18:55
----
----
----
----
WN1447
WN4144
WN4144
19:05
----
----
19:05
19:05
----
----
The timetable & schedule information was updated at 2026-04-21
Via Minneapolis with Delta Air Lines
-
Total flight time: 7h 25m - 9h 30m.
-
Sky Team Alliance
-
Seattle is a Delta Air Lines hub.
-
135 flights per week
-
Airbus A321neo
DCA
Via MSP
SEA
W25, Jun 15 - Jun 21
Flight
Mon
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
DL1193
DL868
DL868
06:00
06:00
06:00
06:00
06:00
06:00
06:30
DL1493
DL889
DL889
07:45
07:45
07:45
07:45
07:45
07:45
----
DL2958
DL877
DL877
12:00
12:00
12:00
12:00
12:00
12:00
12:00
DL2863
DL881
DL881
15:00
15:00
15:00
15:00
15:00
15:00
15:00
DL2963
DL505
DL505
18:59
18:59
18:59
18:59
18:59
18:59
18:59
The timetable & schedule information was updated at 2026-04-21
Via Chicago with American Airlines
Via Chicago with United
Via Denver with Frontier
Via Boston with JetBlue