An Alaska Airlines plane taking off with a snow-capped mountain in the background.

Flights from Baltimore Washington Intl. Airport (BWI) to Seattle-Tacoma International Airport (SEA)
Flights to Seattle
Washington
United States of America
Flights
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Popular airlines from Baltimore Washington Intl. Airport (BWI) to Seattle-Tacoma International Airport (SEA)

Alaska Airlines
American Airlines
Delta
Southwest Airlines
United
Sun Country Airlines

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Cheap Flights from Baltimore to Seattle (BWI-SEA)

Prices were available within the past 7 days and start at NT$6,610 for one-way flights and NT$14,012 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$14,012

Roundtrip

Found 2 days ago

Select Delta flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$14,012 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$14,488

Roundtrip

Found 2 days ago

Select American Airlines flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$14,488 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$14,519

Roundtrip

Found 2 days ago

Select Delta flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$14,519 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$14,965

Roundtrip

Found 2 days ago

Select Delta flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$14,965 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$15,282

Roundtrip

Found 2 days ago

Select Delta flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$15,282 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$15,535

Roundtrip

Found 2 days ago

Select Delta flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$15,535 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$15,758

Roundtrip

Found 2 days ago

Select United flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$15,758 Found 2 days ago

Thu, Oct 1 - Wed, Oct 7

BWI

Baltimore

SEA

Seattle

NT$15,759

Roundtrip

Found 2 days ago

Select Delta flight, departing Thu, Oct 1 from Baltimore to Seattle, returning Wed, Oct 7, priced at NT$15,759 Found 2 days ago

Wed, Sep 9 - Mon, Sep 21

BWI

Baltimore

SEA

Seattle

NT$15,790

Roundtrip

Found 3 days ago

Select Delta flight, departing Wed, Sep 9 from Baltimore to Seattle, returning Mon, Sep 21, priced at NT$15,790 Found 3 days ago

Tue, Sep 15 - Sun, Sep 20

BWI

Baltimore

SEA

Seattle

NT$16,403

Roundtrip

Found 3 days ago

Select Alaska Airlines flight, departing Tue, Sep 15 from Baltimore to Seattle, returning Sun, Sep 20, priced at NT$16,403 Found 3 days ago

Find the cheapest month to fly from Baltimore (BWI) to Seattle (SEA)

October is typically the cheapest month to fly

From NT$4,407 - NT$7,508 per traveler.

Travel information

Origin airport	Baltimore Washington Intl. Airport
Destination airport	Seattle-Tacoma International Airport
Distance	3,747 km away
Airlines serving	Alaska Airlines, American Airlines, Delta, Southwest Airlines, United, Sun Country Airlines
Popular airline	Alaska Airlines
Roundtrip price	NT$14,012
Average flight time	5 hours 40 mins

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NT$6,610 Cheap Flights from Baltimore (BWI) to Seattle (SEA)

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Seattle-Tacoma International Airport (SEA)

Be in the know

Book smarter

Earn twice

Cheap Flights from Baltimore to Seattle (BWI-SEA)

Find the cheapest month to fly from Baltimore (BWI) to Seattle (SEA)

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