A river with cherry blossoms and the Washington Monument in the background.

Flights from Seattle-Tacoma International Airport (SEA) to Washington, DC (WAS-All Airports)
Flights to Maryland
United States of America
Flights
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Popular airlines from Seattle-Tacoma International Airport (SEA) to Washington

Alaska Airlines
American Airlines
Delta
United
Southwest Airlines
Sun Country Airlines
Frontier Airlines

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Cheap Flights from Seattle to Washington (SEA-WAS)

Prices were available within the past 7 days and start at ￥21,320 for one-way flights and ￥41,640 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Tue, Feb 2 - Tue, Feb 2

SEA

Seattle

BWI

Baltimore

￥41,640

Roundtrip

Found 1 hour ago

Select Delta flight, departing Tue, Feb 2 from Seattle to Baltimore, returning Tue, Feb 2, priced at ￥41,640 Found 1 hour ago

Tue, Feb 2 - Wed, Feb 3

SEA

Seattle

BWI

Baltimore

￥42,530

Roundtrip

Found 1 hour ago

Select Delta flight, departing Tue, Feb 2 from Seattle to Baltimore, returning Wed, Feb 3, priced at ￥42,530 Found 1 hour ago

Mon, Feb 1 - Tue, Feb 2

SEA

Seattle

BWI

Baltimore

￥43,390

Roundtrip

Found 1 hour ago

Select Delta flight, departing Mon, Feb 1 from Seattle to Baltimore, returning Tue, Feb 2, priced at ￥43,390 Found 1 hour ago

Thu, Jan 28 - Thu, Feb 4

SEA

Seattle

IAD

Washington

￥43,820

Roundtrip

Found 1 hour ago

Select Delta flight, departing Thu, Jan 28 from Seattle to Washington, returning Thu, Feb 4, priced at ￥43,820 Found 1 hour ago

Thu, Jan 28 - Tue, Feb 2

SEA

Seattle

DCA

Washington

￥43,820

Roundtrip

Found 1 hour ago

Select Delta flight, departing Thu, Jan 28 from Seattle to Washington, returning Tue, Feb 2, priced at ￥43,820 Found 1 hour ago

Thu, Jan 28 - Fri, Feb 5

SEA

Seattle

DCA

Washington

￥45,380

Roundtrip

Found 1 hour ago

Select Delta flight, departing Thu, Jan 28 from Seattle to Washington, returning Fri, Feb 5, priced at ￥45,380 Found 1 hour ago

Mon, Feb 1 - Fri, Feb 5

SEA

Seattle

BWI

Baltimore

￥50,590

Roundtrip

Found 1 hour ago

Select American Airlines flight, departing Mon, Feb 1 from Seattle to Baltimore, returning Fri, Feb 5, priced at ￥50,590 Found 1 hour ago

Mon, Feb 1 - Fri, Feb 5

SEA

Seattle

BWI

Baltimore

￥58,010

Roundtrip

Found 1 hour ago

Select United flight, departing Mon, Feb 1 from Seattle to Baltimore, returning Fri, Feb 5, priced at ￥58,010 Found 1 hour ago

Mon, Feb 1 - Fri, Feb 5

SEA

Seattle

BWI

Baltimore

￥59,190

Roundtrip

Found 1 hour ago

Select Southwest Airlines flight, departing Mon, Feb 1 from Seattle to Baltimore, returning Fri, Feb 5, priced at ￥59,190 Found 1 hour ago

Sun, Jan 31 - Thu, Feb 4

SEA

Seattle

BWI

Baltimore

￥62,260

Roundtrip

Found 1 hour ago

Select Alaska Airlines flight, departing Sun, Jan 31 from Seattle to Baltimore, returning Thu, Feb 4, priced at ￥62,260 Found 1 hour ago

Find the cheapest month to fly from Seattle (SEA) to Washington (WAS)

October is typically the cheapest month to fly

From ￥30,970 - ￥67,101 per traveler.

Travel information

Origin airport	Seattle-Tacoma International Airport
Destination airport	Ronald Reagan Washington National Airport
Distance	3,737 km away
Airlines serving	Alaska Airlines, Delta, American Airlines, United, Southwest Airlines, JetBlue Airways, Frontier Airlines
Popular airline	Alaska Airlines
Roundtrip price	￥41,640
Average flight time	5 hours 12 mins

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￥21,320 Cheap Flights from Seattle (SEA) to Washington (WAS)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Washington

Be in the know

Book smarter

Earn twice

Cheap Flights from Seattle to Washington (SEA-WAS)

Find the cheapest month to fly from Seattle (SEA) to Washington (WAS)

October is typically the cheapest month to flyOctober is typically the cheapest month to fly

Travel information

Explore a world of travel with Expedia

October is typically the cheapest month to fly