
Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
- Alaska Airlines
Alaska Airlines
- JetBlue Airways
JetBlue Airways
- Delta
Delta
- American Airlines
American Airlines
- United
United
- Sun Country Airlines
Sun Country Airlines
- Southwest Airlines
Southwest Airlines
- Plan, book, fly with confidence
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Cheap flights from Boston to Seattle (BOS-SEA)
Prices were available within the past 7 days and start at €77 for one-way flights and €153 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, 22 Sep - Wed, 1 Oct
BOS
Boston
SEA
Seattle
€153 Return, found 3 hours ago
€153
Return
found 3 hours ago

Thu, 2 Oct - Sat, 11 Oct
BOS
Boston
SEA
Seattle
€186 Return, found 1 day ago
€186
Return
found 1 day ago

Thu, 25 Sep - Wed, 1 Oct
BOS
Boston
SEA
Seattle
€196 Return, found 4 days ago
€196
Return
found 4 days ago

Thu, 2 Oct - Sat, 11 Oct
BOS
Boston
SEA
Seattle
€203 Return, found 1 day ago
€203
Return
found 1 day ago

Sat, 13 Sep - Fri, 19 Sep
BOS
Boston
SEA
Seattle
€204 Return, found 2 days ago
€204
Return
found 2 days ago

Mon, 22 Sep - Wed, 1 Oct
BOS
Boston
SEA
Seattle
€221 Return, found 3 hours ago
€221
Return
found 3 hours ago

Sat, 13 Sep - Fri, 19 Sep
BOS
Boston
SEA
Seattle
€227 Return, found 2 days ago
€227
Return
found 2 days ago

Thu, 2 Oct - Sat, 11 Oct
BOS
Boston
SEA
Seattle
€228 Return, found 1 day ago
€228
Return
found 1 day ago

Thu, 25 Sep - Wed, 1 Oct
BOS
Boston
SEA
Seattle
€248 Return, found 4 days ago
€248
Return
found 4 days ago

Mon, 29 Sep - Tue, 7 Oct
BOS
Boston
SEA
Seattle
€277 Return, found 12 hours ago
€277
Return
found 12 hours ago
Find the cheapest month to fly from Boston (BOS) to Seattle (SEA)
March is typically the cheapest month to fly
From €134 - €263 per traveller.
Graph displaying average flight prices per month
Origin airport | Logan Intl. |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | American Airlines, Delta, JetBlue Airways, United |
Return price | €152 |
Distance | 3980 km |
Average flight time | 3 hours 17 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.
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Logan Intl. to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from €77 and roundtrip prices from €153. 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.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Seattle - Tacoma Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
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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Top Routes from Boston
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Top Routes to Seattle
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- Singapore to Seattle (SIN - SEA)
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