
Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
- American Airlines
American Airlines
- JetBlue Airways
JetBlue Airways
- Delta
Delta
- United
United
- 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 €81 for one-way flights and €176 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€176 Return, found 1 day ago
€176
Return
found 1 day ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€188 Return, found 1 day ago
€188
Return
found 1 day ago

Thu, 11 Sep - Tue, 16 Sep
BOS
Boston
SEA
Seattle
€196 Return, found 2 days ago
€196
Return
found 2 days ago

Mon, 25 Aug - Wed, 3 Sep
BOS
Boston
SEA
Seattle
€202 Return, found 1 day ago
€202
Return
found 1 day ago

Wed, 10 Sep - Tue, 16 Sep
BOS
Boston
SEA
Seattle
€205 Return, found 3 days ago
€205
Return
found 3 days ago

Thu, 11 Sep - Tue, 16 Sep
BOS
Boston
SEA
Seattle
€205 Return, found 2 days ago
€205
Return
found 2 days ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€213 Return, found 1 day ago
€213
Return
found 1 day ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€213 Return, found 1 day ago
€213
Return
found 1 day ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€221 Return, found 1 day ago
€221
Return
found 1 day ago

Mon, 25 Aug - Wed, 3 Sep
BOS
Boston
SEA
Seattle
€240 Return, found 1 day ago
€240
Return
found 1 day ago
Find the cheapest month to fly from Boston (BOS) to Seattle (SEA)
September is typically the cheapest month to fly
From €133 - €211 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 | €175 |
Distance | 3980 km |
Average flight time | 3 hours 30 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 €81 and roundtrip prices from €176. 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
- Newark Liberty Intl. Airport to Seattle (EWR - SEA)
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