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Flights from Boston to Seattle
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Find cheap one-way flights from Boston to Seattle starting at US$92.
Book one-way or return flights from Boston to Seattle from as little as US$92. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- BOS11:308h 25m1 stopSEA16:55Wed, Apr 24|Boston - Seattle|Sun Country AirlinesUS$92US$15942% OFF42% OFFUS$159US$92
- BOS17:506h 20mDirectSEA21:10Tue, Mar 19|Boston - Seattle|Alaska AirlinesUS$96US$15940% OFF40% OFFUS$159US$96
- BOS17:506h 20mDirectSEA21:10Thu, Mar 21|Boston - Seattle|Alaska AirlinesUS$101US$15937% OFF37% OFFUS$159US$101
- BOS17:396h 31mDirectSEA21:10Thu, Mar 21|Boston - Seattle|Jetblue AirwaysUS$101US$101
- BOS11:056h 25mDirectSEA14:30Thu, Mar 21|Boston - Seattle|Delta Air LinesUS$106US$106
- BOS18:256h 34mDirectSEA21:59Tue, Mar 19|Boston - Seattle|Delta Air LinesUS$106US$106
- BOS07:006h 20mDirectSEA10:20Tue, Mar 26|Boston - Seattle|Alaska AirlinesUS$114US$114
- BOS07:006h 20mDirectSEA10:20Mon, Apr 8|Boston - Seattle|Alaska AirlinesUS$115US$115
- BOS06:3016h 55m1 stopSEA20:25Mon, Apr 8|Boston - Seattle|Southwest AirlinesUS$115US$115
- BOS07:006h 20mDirectSEA10:20Mon, Mar 25|Boston - Seattle|Alaska AirlinesUS$116US$116
- BOS13:003h 5mDirectSEA14:00Tue, Mar 26|Boston - Seattle|Sun Country AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
When is the cheapest time to book flights from Boston to Seattle?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Boston to Seattle
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Sun Country Airlines
From US$92
Alaska Airlines
From US$101
Jetblue Airways
From US$101
Delta Air Lines
From US$106
Southwest Airlines
From US$115
Spirit Airlines
From US$117
American Airlines
From US$124
Frontier Airlines
From US$179
United Airlines
From US$314
Cape Air
From US$398
ANA airlines
Find more flights and airlines
Find cheap flights from Boston to Seattle by different airports
Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Boston to Seattle.
- CheapestBOS11:308h 25m1 transferSEA16:55General Edward Lawrence Logan International Airport - Seattle-Tacoma International AirportWed, Apr 24Sun Country AirlinesUS$92
- BNH10:0015h 30m1 transferSEA22:30Hartford Barnes Airport - Seattle-Tacoma International AirportTue, Apr 16Southern Airways ExpressUS$571
- BNH10:0015h 30m1 transferSEA22:30Hartford Barnes Airport - Seattle-Tacoma International AirportTue, Apr 16Southern Airways ExpressUS$571Find More Flights
Frequently Asked Questions
Boston to Seattle Flight Information
Cheapest nonstop flight price | $91 |
---|---|
Cheapest round-trip ticket price | $204 |
Off-season for travel | November |
Peak season for travel | September |
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