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Baltimore/Washington International Thurgood Marshall Ai
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United States
Seattle–Tacoma International Airport
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Scan through all non-stop flights from Baltimore-Washington to Seattle / Tacoma. The full flight schedule below gives an overview of all non-stop flights from BWI 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 Baltimore-Washington BWI 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 BWI SEA flight schedule.
Flights from BWI to SEA are operated 9 times a week, with an average of 1 flight per day. Departure times vary between 07:03 - 19:35. The earliest flight departs at 07:03, the last flight departs at 19:35. 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 Baltimore-Washington to Seattle / Tacoma takes 5 hours and 51 minutes. The flight distance between Baltimore-Washington and Seattle / Tacoma is 2,327 miles (or 3,745 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 9 flights per week flying from Baltimore-Washington to Seattle / Tacoma (as of April 2026).
5 hours and 51 minutes is the average flight time from Baltimore-Washington to Seattle / Tacoma.
The distance from Baltimore-Washington to Seattle / Tacoma is 2,327 miles (3,745 kilometers).
Alaska and Southwest Airlines are flying nonstop from Baltimore-Washington to Seattle / Tacoma.
Oneworld is currently the only alliance flying nonstop from Baltimore-Washington to Seattle / Tacoma.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Baltimore-Washington to Seattle / Tacoma:
The earliest flight departs at 07:03 from Baltimore-Washington and arrives at 09:53 at Seattle / Tacoma.
The latest flight departs at 19:35 from Baltimore-Washington and arrives at 22:26 at Seattle / Tacoma.
2,327 miles (3,745 km) · 5h 51m
07:04
09:51
Alaska
Oneworld
AS 764
Alaska
Boeing 737 MAX 9
Y
W
J
F
07:04
09:51
Alaska
Oneworld
AS 764
Alaska
Boeing 737 MAX 9
Y
W
J
F
19:04
21:58
Alaska
Oneworld
AS 379
Alaska
Boeing 737 MAX 9
Y
W
J
F
19:04
21:58
Alaska
Oneworld
AS 379
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
19:11
22:05
Alaska
Oneworld
AS 379
Alaska
Boeing 737 MAX 9
Y
W
J
F
19:11
22:05
Alaska
Oneworld
AS 379
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
19:11
22:05
Alaska
Oneworld
AS 379
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
19:11
22:05
Alaska
Oneworld
AS 379
Alaska
Boeing 737 MAX 9
Y
W
J
F
19:16
22:00
Alaska
Oneworld
AS 379
Alaska
Boeing 737 MAX 9
Y
W
J
F
19:16
22:00
Alaska
Oneworld
AS 379
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
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