CA $142 Cheap Alaska Airlines fights from Boston (BOS) to Seattle (SEA)

Alaska Airlines flights from Boston to Seattle (BOS→SEA)

Prices were available within the past 7 days and start at CA $142 for one-way flights and CA $272 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri., Jan. 31 - Tue., Feb. 4

BOS

Boston

SEA

Seattle

CA $272 Roundtrip, found 3 days ago

CA $272

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Fri., Jan. 31 from Boston to Seattle, returning Tue., Feb. 4, priced at CA $272 found 3 days ago

Thu., Feb. 27 - Thu., Feb. 27

BOS

Boston

SEA

Seattle

CA $276 Roundtrip, found 3 days ago

CA $276

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Thu., Feb. 27 from Boston to Seattle, returning Thu., Feb. 27, priced at CA $276 found 3 days ago

Mon., Mar. 10 - Mon., Mar. 10

BOS

Boston

SEA

Seattle

CA $304 Roundtrip, found 2 days ago

CA $304

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Mon., Mar. 10 from Boston to Seattle, returning Mon., Mar. 10, priced at CA $304 found 2 days ago

Thu., Feb. 27 - Mon., Mar. 10

BOS

Boston

SEA

Seattle

CA $316 Roundtrip, found 3 days ago

CA $316

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Thu., Feb. 27 from Boston to Seattle, returning Mon., Mar. 10, priced at CA $316 found 3 days ago

Mon., Jan. 27 - Wed., Feb. 5

BOS

Boston

SEA

Seattle

CA $321 Roundtrip, found 6 days ago

CA $321

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Mon., Jan. 27 from Boston to Seattle, returning Wed., Feb. 5, priced at CA $321 found 6 days ago

Mon., Jan. 27 - Wed., Feb. 5

BOS

Boston

SEA

Seattle

CA $322 Roundtrip, found 6 days ago

CA $322

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Mon., Jan. 27 from Boston to Seattle, returning Wed., Feb. 5, priced at CA $322 found 6 days ago