
Popular airlines from Logan International Airport (BOS) to Seattle-Tacoma International Airport (SEA)
- Alaska Airlines
Alaska Airlines
- JetBlue Airways
JetBlue Airways
- Sun Country Airlines
Sun Country Airlines
- Delta
Delta
- American Airlines
American Airlines
- United
United
- 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 €87 for one-way flights and €187 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
€187 Return, found 2 days ago
€187
Return
found 2 days ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€188 Return, found 2 days ago
€188
Return
found 2 days ago

Thu, 11 Sep - Fri, 12 Sep
BOS
Boston
SEA
Seattle
€189 Return, found 1 day ago
€189
Return
found 1 day ago

Mon, 8 Sep - Tue, 16 Sep
BOS
Boston
SEA
Seattle
€191 Return, found 9 hours ago
€191
Return
found 9 hours ago

Sat, 20 Sep - Mon, 22 Sep
BOS
Boston
SEA
Seattle
€194 Return, found 3 days ago
€194
Return
found 3 days ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€196 Return, found 2 days ago
€196
Return
found 2 days ago

Mon, 8 Sep - Tue, 16 Sep
BOS
Boston
SEA
Seattle
€199 Return, found 9 hours ago
€199
Return
found 9 hours ago

Sat, 13 Sep - Sat, 20 Sep
BOS
Boston
SEA
Seattle
€204 Return, found 2 days ago
€204
Return
found 2 days ago

Sat, 20 Sep - Mon, 22 Sep
BOS
Boston
SEA
Seattle
€211 Return, found 3 days ago
€211
Return
found 3 days ago

Mon, 8 Sep - Tue, 16 Sep
BOS
Boston
SEA
Seattle
€243 Return, found 9 hours ago
€243
Return
found 9 hours ago
Find the cheapest month to fly from Boston (BOS) to Seattle (SEA)
March is typically the cheapest month to fly
From €135 - €266 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 | €186 |
Distance | 3980 km |
Average flight time | 3 hours 22 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 €87 and roundtrip prices from €187. 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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