
Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
- Alaska Airlines
Alaska Airlines
- JetBlue Airways
JetBlue Airways
- United
United
- American Airlines
American Airlines
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- Sun Country Airlines
Sun Country Airlines
- Plan, book, fly with confidence
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Cheap Flights from Boston (BOS) to Seattle (SEA)
Prices were available within the past 7 days and start at ฿5,180 for one-way flights and ฿20,290 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, 24 Aug - Sun, 31 Aug
BOS
Boston
SEA
Seattle
฿20,290 Return, found 2 days ago
฿20,290
Return
found 2 days ago

Sun, 24 Aug - Sun, 31 Aug
BOS
Boston
SEA
Seattle
฿20,655 Return, found 2 days ago
฿20,655
Return
found 2 days ago

Fri, 29 Aug - Mon, 1 Sep
BOS
Boston
SEA
Seattle
฿20,945 Return, found 12 hours ago
฿20,945
Return
found 12 hours ago

Sun, 24 Aug - Sun, 31 Aug
BOS
Boston
SEA
Seattle
฿21,600 Return, found 2 days ago
฿21,600
Return
found 2 days ago

Fri, 29 Aug - Mon, 1 Sep
BOS
Boston
SEA
Seattle
฿22,085 Return, found 12 hours ago
฿22,085
Return
found 12 hours ago

Sun, 24 Aug - Sun, 31 Aug
BOS
Boston
SEA
Seattle
฿22,410 Return, found 2 days ago
฿22,410
Return
found 2 days ago

Fri, 29 Aug - Mon, 1 Sep
BOS
Boston
SEA
Seattle
฿22,570 Return, found 12 hours ago
฿22,570
Return
found 12 hours ago

Fri, 29 Aug - Mon, 1 Sep
BOS
Boston
SEA
Seattle
฿22,575 Return, found 12 hours ago
฿22,575
Return
found 12 hours ago

Fri, 29 Aug - Mon, 1 Sep
BOS
Boston
SEA
Seattle
฿23,555 Return, found 12 hours ago
฿23,555
Return
found 12 hours ago

Fri, 29 Aug - Mon, 1 Sep
BOS
Boston
SEA
Seattle
฿25,025 Return, found 12 hours ago
฿25,025
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 ฿5,090 - ฿10,003 per traveller.
Graph displaying average flight prices per month
Origin airport | Logan Intl. |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | American Airlines, Delta, United |
Return price | ฿20,290 |
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 Seattle, 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 ฿5,180 and roundtrip prices from ฿20,290. 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 Seattle 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 BOS to SEA 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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