NZ$171 Cheap Flights Seattle to Boston (SEA-BOS)

View NZ$171 flight on Tue, 11 Nov 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Logan International Airport (BOS)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle (SEA) to Boston (BOS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$341 Return, found 5 days ago
NZ$341
Return
found 5 days ago
Select Delta flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$341 found 5 days ago
American Airlines
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$357 Return, found 5 days ago
NZ$357
Return
found 5 days ago
Select American Airlines flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$357 found 5 days ago
American Airlines
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$391 Return, found 5 days ago
NZ$391
Return
found 5 days ago
Select American Airlines flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$391 found 5 days ago
Delta
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$428 Return, found 5 days ago
NZ$428
Return
found 5 days ago
Select Delta flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$428 found 5 days ago
American Airlines
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$435 Return, found 5 days ago
NZ$435
Return
found 5 days ago
Select American Airlines flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$435 found 5 days ago
Delta
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$462 Return, found 5 days ago
NZ$462
Return
found 5 days ago
Select Delta flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$462 found 5 days ago
Delta
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$471 Return, found 5 days ago
NZ$471
Return
found 5 days ago
Select Delta flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$471 found 5 days ago
American Airlines
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$478 Return, found 5 days ago
NZ$478
Return
found 5 days ago
Select American Airlines flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$478 found 5 days ago
Delta
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$496 Return, found 5 days ago
NZ$496
Return
found 5 days ago
Select Delta flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$496 found 5 days ago
United
Tue, 11 Nov - Tue, 18 Nov
SEA
Seattle
BOS
Boston
NZ$548 Return, found 5 days ago
NZ$548
Return
found 5 days ago
Select United flight, departing Tue, 11 Nov from Seattle to Boston, returning Tue, 18 Nov, priced at NZ$548 found 5 days ago

Frequently asked questions

How much is a flight from SEA to Logan Intl. Airport (BOS)?
If you're travelling from Sea-Tac Airport to BOS, round-trip flights start from NZ$341. This figure is based on fares listed within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to BOS?
We get that your situation can change unexpectedly, so we've made it as hassle-free as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Logan Intl. Airport (BOS) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Logan Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Logan Intl. Airport?
With around 4 000 kilometres separating Sea-Tac Airport and Logan Intl. Airport, your flight will be a long one. Pack wisely to make your time in the air more comfortable. Simple things like an eye mask and a quality neck pillow can make a massive difference.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Logan Intl. Airport?
A popular airline that operates on the route from SEA to Logan Intl. Airport (BOS) is Alaska Airlines (AS). It offers 117 flights a month. Like some more options? Check out the airfares with Delta Air Lines (DL). This carrier offers 78 monthly flights between these airports.
Are Sea-Tac Airport to BOS flight tickets cheaper when they're purchased at the last minute?
It is possible to nab great last-minute deals from Sea-Tac Airport to BOS, but there's no guarantee. As many airlines advertise prices up to a year in advance, it's worth keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals all the time, so you can feel confident knowing you're always getting the latest offers.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Logan Intl.
Return price
NZ$340
Distance
3980 km
Average flight time
8 hours 31 mins

Book with confidence

Book with confidence

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 NZ$171 and roundtrip prices from NZ$341. 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.
Perfect flights from Seattle to Boston

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to Expedia members.