Alaska
Oneworld
Did you mean flights from Seattle / Tacoma to Washington?
United States
Ronald Reagan Washington National Airport
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United States
Seattle–Tacoma International Airport
Click to show full flight schedule
Scan through all non-stop flights from Washington to Seattle / Tacoma. The full flight schedule below gives an overview of all non-stop flights from DCA to SEA, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
In Seattle / Tacoma, the summers are known for being warm, long, and dry, with temperatures typically reaching about 30°C (86°F). The area’s breathtaking scenery complements the sun-filled lifestyle, making it a popular destination for visitors all year round who are looking for relaxation, fun by the water, and the beauty of the outdoors.
Seattle / Tacoma is best explored from mid-spring to summer, specifically between April and September, as most rainfall occurs from October to February.
In total there are 2 airlines operating nonstop flights from Washington DCA to Seattle / Tacoma SEA. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their DCA SEA flight schedule.
Flights from DCA to SEA are operated 21 times a week, with an average of 3 flights per day. Departure times vary between 08:00 - 17:04. The earliest flight departs at 08:00, the last flight departs at 17:04. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Washington to Seattle / Tacoma takes 6 hours and 10 minutes. The flight distance between Washington and Seattle / Tacoma is 2,321 miles (or 3,735 km).
There are 3 airports in Seattle / Tacoma: Seattle–Tacoma International Airport (SEA), Boeing Field/King County Internat (BFI) and Kenmore Air Harbor Seaplane Base (FAA: W55) (LKE).
There are 21 flights per week flying from Washington to Seattle / Tacoma (as of April 2026).
6 hours and 10 minutes is the average flight time from Washington to Seattle / Tacoma.
The distance from Washington to Seattle / Tacoma is 2,321 miles (3,735 kilometers).
Alaska and Delta are flying nonstop from Washington to Seattle / Tacoma.
Oneworld and SkyTeam are flying nonstop from Washington to Seattle / Tacoma.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Washington to Seattle / Tacoma:
The earliest flight departs at 08:00 from Washington and arrives at 11:05 at Seattle / Tacoma.
The latest flight departs at 17:04 from Washington and arrives at 20:04 at Seattle / Tacoma.
2,321 miles (3,735 km) · 6h 10m
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737 MAX 8
Y
W
J
F
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737 MAX 8
Y
W
J
F
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
08:00
11:05
Alaska
Oneworld
AS 1
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
08:00
10:57
Alaska
Oneworld
AS 1
Alaska
Boeing 737 MAX 8
Y
W
J
F
08:00
10:57
Alaska
Oneworld
AS 1
Alaska
Boeing 737 MAX 8
Y
W
J
F
08:00
10:57
Alaska
Oneworld
AS 1
Alaska
Boeing 737 MAX 8
Y
W
J
F
08:00
10:57
Alaska
Oneworld
AS 1
Alaska
Boeing 737 MAX 8
Y
W
J
F
16:39
19:30
Delta
SkyTeam
DL 730
Delta
Boeing 757-200 (winglets)
Y
W
J
F
16:40
19:34
Delta
SkyTeam
DL 786
Delta
Boeing 757-200 (winglets)
Y
W
J
F
17:00
20:02
Alaska
Oneworld
AS 3
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
17:00
20:02
Alaska
Oneworld
AS 3
Alaska
Boeing 737 MAX 8
Y
W
J
F
17:00
20:02
Alaska
Oneworld
AS 3
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
17:00
20:02
Alaska
Oneworld
AS 3
Alaska
Boeing 737 MAX 8
Y
W
J
F
17:00
20:02
Alaska
Oneworld
AS 3
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
17:00
19:55
Alaska
Oneworld
AS 3
Alaska
Boeing 737 MAX 8
Y
W
J
F
17:00
19:55
Alaska
Oneworld
AS 3
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
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