Cheap flights from Seattle to Cambridge from CA $165

Cheap flights from Seattle (SEA) to Cambridge (BOS)

Prices were available within the past 7 days and start at CA $165 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., Oct. 14 - Thu., Oct. 16

SEA

Seattle

BOS

Boston

CA $329 Roundtrip, just found

CA $329

Roundtrip

just found

Select JetBlue Airways flight, departing Tue., Oct. 14 from Seattle to Boston, returning Thu., Oct. 16, priced at CA $329 just found

Thu., Sep. 4 - Thu., Sep. 11

SEA

Seattle

BOS

Boston

CA $332 Roundtrip, found 7 hours ago

CA $332

Roundtrip

found 7 hours ago

Select Delta flight, departing Thu., Sep. 4 from Seattle to Boston, returning Thu., Sep. 11, priced at CA $332 found 7 hours ago

Sat., May 17 - Sun., May 25

SEA

Seattle

BOS

Boston

CA $341 Roundtrip, found 4 days ago

CA $341

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sat., May 17 from Seattle to Boston, returning Sun., May 25, priced at CA $341 found 4 days ago

Sat., May 17 - Sun., May 25

SEA

Seattle

BOS

Boston

CA $342 Roundtrip, found 4 days ago

CA $342

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sat., May 17 from Seattle to Boston, returning Sun., May 25, priced at CA $342 found 4 days ago

Thu., Sep. 4 - Thu., Sep. 11

SEA

Seattle

BOS

Boston

CA $342 Roundtrip, found 7 hours ago

CA $342

Roundtrip

found 7 hours ago

Select Alaska Airlines flight, departing Thu., Sep. 4 from Seattle to Boston, returning Thu., Sep. 11, priced at CA $342 found 7 hours ago

Sat., May 17 - Sat., May 24

SEA

Seattle

BOS

Boston

CA $343 Roundtrip, found 16 hours ago

CA $343

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Sat., May 17 from Seattle to Boston, returning Sat., May 24, priced at CA $343 found 16 hours ago