
Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
- Alaska Airlines
Alaska Airlines
- American Airlines
American Airlines
- United
United
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- Sun Country Airlines
Sun Country Airlines
- JetBlue Airways
JetBlue Airways
- Be in the knowGet alerts if flight prices drop or rise*
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Cheap flights from Boston to Seattle (BOS-SEA)
Prices were available within the past 7 days and start at €118 for one-way flights and €217 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, 12 Jan - Wed, 21 Jan
BOS
Boston
SEA
Seattle
€217 Return, found 3 days ago
€217
Return
found 3 days ago

Mon, 12 Jan - Wed, 21 Jan
BOS
Boston
SEA
Seattle
€225 Return, found 3 days ago
€225
Return
found 3 days ago

Thu, 4 Dec - Wed, 10 Dec
BOS
Boston
SEA
Seattle
€227 Return, found 2 days ago
€227
Return
found 2 days ago

Mon, 12 Jan - Wed, 21 Jan
BOS
Boston
SEA
Seattle
€234 Return, found 3 days ago
€234
Return
found 3 days ago

Thu, 4 Dec - Wed, 10 Dec
BOS
Boston
SEA
Seattle
€234 Return, found 2 days ago
€234
Return
found 2 days ago

Thu, 4 Dec - Wed, 10 Dec
BOS
Boston
SEA
Seattle
€235 Return, found 2 days ago
€235
Return
found 2 days ago

Thu, 4 Dec - Wed, 10 Dec
BOS
Boston
SEA
Seattle
€247 Return, found 2 days ago
€247
Return
found 2 days ago

Thu, 4 Dec - Wed, 10 Dec
BOS
Boston
SEA
Seattle
€254 Return, found 2 days ago
€254
Return
found 2 days ago

Mon, 15 Jun - Tue, 16 Jun
BOS
Boston
SEA
Seattle
€266 Return, found 4 days ago
€266
Return
found 4 days ago

Tue, 20 Jan - Tue, 27 Jan
BOS
Boston
SEA
Seattle
€289 Return, found 3 days ago
€289
Return
found 3 days ago
Find the cheapest month to fly from Boston (BOS) to Seattle (SEA)
March is typically the cheapest month to fly
From €136 - €267 per traveller.
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Logan Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | American Airlines, Delta, United |
Return price | €217 |
Distance | 3980 km |
Average flight time | 4 hours 33 mins |
Perfect flights from Boston to Seattle
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Boston to Seattle. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
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Our flexible Logan Intl. to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from €118 and roundtrip prices from €217. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
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Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Seattle.
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