
Popular airlines from Seattle-Tacoma International Airport (SEA) to Logan International Airport (BOS)
- American Airlines
American Airlines
- Delta
Delta
- United
United
- Plan, book, fly with confidence
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Cheap Flights from Seattle (SEA) to Boston (BOS)
Prices were available within the past 7 days and start at ฿3,535 for one-way flights and ฿7,065 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, 7 Oct - Wed, 15 Oct
SEA
Seattle
BOS
Boston
฿7,065 Return, found 2 hours ago
฿7,065
Return
found 2 hours ago

Mon, 6 Oct - Wed, 15 Oct
SEA
Seattle
BOS
Boston
฿7,385 Return, found 2 hours ago
฿7,385
Return
found 2 hours ago

Tue, 7 Oct - Fri, 17 Oct
SEA
Seattle
BOS
Boston
฿7,715 Return, found 2 hours ago
฿7,715
Return
found 2 hours ago

Mon, 6 Oct - Fri, 17 Oct
SEA
Seattle
BOS
Boston
฿8,040 Return, found 2 hours ago
฿8,040
Return
found 2 hours ago

Fri, 24 Oct - Fri, 14 Nov
SEA
Seattle
BOS
Boston
฿8,365 Return, found 2 hours ago
฿8,365
Return
found 2 hours ago

Sun, 5 Oct - Wed, 15 Oct
SEA
Seattle
BOS
Boston
฿8,525 Return, found 2 hours ago
฿8,525
Return
found 2 hours ago

Wed, 1 Oct - Tue, 7 Oct
SEA
Seattle
BOS
Boston
฿9,010 Return, found 6 hours ago
฿9,010
Return
found 6 hours ago

Wed, 8 Oct - Sat, 18 Oct
SEA
Seattle
BOS
Boston
฿9,660 Return, found 2 hours ago
฿9,660
Return
found 2 hours ago

Wed, 1 Oct - Tue, 7 Oct
SEA
Seattle
BOS
Boston
฿9,985 Return, found 6 hours ago
฿9,985
Return
found 6 hours ago

Wed, 19 Nov - Fri, 12 Dec
SEA
Seattle
BOS
Boston
฿11,760 Return, found 2 hours ago
฿11,760
Return
found 2 hours ago
Find the cheapest month to fly from Seattle (SEA) to Boston (BOS)
September is typically the cheapest month to fly
From ฿4,828 - ฿8,195 per traveller.
Graph displaying average flight prices per month
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Logan Intl. |
Airlines serving | American Airlines, Delta, United |
Return price | ฿7,065 |
Distance | 3980 km |
Average flight time | 8 hours 41 mins |
Perfect flights from Seattle to Boston
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Boston. 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 Boston, 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 Seattle - Tacoma Intl. to Logan Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿3,535 and roundtrip prices from ฿7,065. 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 Logan Intl. and explore Boston 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 SEA to BOS travel arrangements today and embark on the journey of a lifetime in Boston.
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