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Flights from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
Flights to Seattle
Washington
United States of America
Flights
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Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)

Alaska Airlines
JetBlue Airways
Sun Country Airlines
Delta
American Airlines
United
Southwest Airlines

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Cheap Flights from Boston to Seattle (BOS-SEA)

Prices were available within the past 7 days and start at NT$5,447 for one-way flights and NT$11,215 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Sat, Sep 26 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$11,215

Roundtrip

Found 3 days ago

Select Delta flight, departing Sat, Sep 26 from Boston to Seattle, returning Sat, Oct 3, priced at NT$11,215 Found 3 days ago

Wed, Sep 9 - Sat, Sep 12

BOS

Boston

SEA

Seattle

NT$11,547

Roundtrip

Found 1 day ago

Select Delta flight, departing Wed, Sep 9 from Boston to Seattle, returning Sat, Sep 12, priced at NT$11,547 Found 1 day ago

Sat, Sep 26 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$12,278

Roundtrip

Found 3 days ago

Select United flight, departing Sat, Sep 26 from Boston to Seattle, returning Sat, Oct 3, priced at NT$12,278 Found 3 days ago

Fri, Sep 25 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$12,347

Roundtrip

Found 3 days ago

Select Delta flight, departing Fri, Sep 25 from Boston to Seattle, returning Sat, Oct 3, priced at NT$12,347 Found 3 days ago

Wed, Sep 9 - Sat, Sep 12

BOS

Boston

SEA

Seattle

NT$12,449

Roundtrip

Found 1 day ago

Select Delta flight, departing Wed, Sep 9 from Boston to Seattle, returning Sat, Sep 12, priced at NT$12,449 Found 1 day ago

Sat, Sep 26 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$12,450

Roundtrip

Found 3 days ago

Select United flight, departing Sat, Sep 26 from Boston to Seattle, returning Sat, Oct 3, priced at NT$12,450 Found 3 days ago

Sat, Sep 26 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$12,622

Roundtrip

Found 3 days ago

Select United flight, departing Sat, Sep 26 from Boston to Seattle, returning Sat, Oct 3, priced at NT$12,622 Found 3 days ago

Wed, Sep 9 - Sun, Sep 13

BOS

Boston

SEA

Seattle

NT$12,680

Roundtrip

Found 1 day ago

Select Delta flight, departing Wed, Sep 9 from Boston to Seattle, returning Sun, Sep 13, priced at NT$12,680 Found 1 day ago

Sat, Sep 26 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$12,833

Roundtrip

Found 3 days ago

Select Delta flight, departing Sat, Sep 26 from Boston to Seattle, returning Sat, Oct 3, priced at NT$12,833 Found 3 days ago

Fri, Sep 25 - Sat, Oct 3

BOS

Boston

SEA

Seattle

NT$13,280

Roundtrip

Found 3 days ago

Select American Airlines flight, departing Fri, Sep 25 from Boston to Seattle, returning Sat, Oct 3, priced at NT$13,280 Found 3 days ago

Travel information

Origin airport	Logan International Airport
Destination airport	Seattle-Tacoma International Airport
Distance	4,003 km away
Airlines serving	Alaska Airlines, JetBlue Airways, Sun Country Airlines, Delta, American Airlines, United, Southwest Airlines
Popular airline	Alaska Airlines
Roundtrip price	NT$11,215
Average flight time	7 hours 25 mins

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NT$5,447 Cheap Flights from Boston (BOS) to Seattle (SEA)

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

Be in the know

Book smarter

Earn twice

Cheap Flights from Boston to Seattle (BOS-SEA)

Travel information

Explore a world of travel with Expedia