CA $171 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 $171 for one-way flights and CA $329 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue., Jun. 10 - Tue., Jun. 10

BOS

Boston

SEA

Seattle

CA $329 Roundtrip, found 2 days ago

CA $329

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Tue., Jun. 10 from Boston to Seattle, returning Tue., Jun. 10, priced at CA $329 found 2 days ago

Sun., May 4 - Sat., May 10

BOS

Boston

SEA

Seattle

CA $346 Roundtrip, found 4 days ago

CA $346

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sun., May 4 from Boston to Seattle, returning Sat., May 10, priced at CA $346 found 4 days ago

Thu., May 29 - Wed., Jun. 4

BOS

Boston

SEA

Seattle

CA $355 Roundtrip, found 19 hours ago

CA $355

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Thu., May 29 from Boston to Seattle, returning Wed., Jun. 4, priced at CA $355 found 19 hours ago

Sun., May 4 - Sat., May 10

BOS

Boston

SEA

Seattle

CA $359 Roundtrip, found 4 days ago

CA $359

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sun., May 4 from Boston to Seattle, returning Sat., May 10, priced at CA $359 found 4 days ago

Thu., May 29 - Wed., Jun. 4

BOS

Boston

SEA

Seattle

CA $368 Roundtrip, found 19 hours ago

CA $368

Roundtrip

found 19 hours ago

Select Alaska Airlines flight, departing Thu., May 29 from Boston to Seattle, returning Wed., Jun. 4, priced at CA $368 found 19 hours ago

Fri., May 2 - Tue., May 6

BOS

Boston

SEA

Seattle

CA $381 Roundtrip, found 4 days ago

CA $381

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Fri., May 2 from Boston to Seattle, returning Tue., May 6, priced at CA $381 found 4 days ago