Cheap Flights from Seattle (SEA) to Boston (BOS) from AU$223

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

Prices were available within the past 7 days and start at AU$223 for one-way flights and AU$441 for round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Alaska Airlines
Alaska Airlines
Alaska Airlines
United
American Airlines
American Airlines
American Airlines
American Airlines
American Airlines
Flight from Seattle to Boston route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$441
Distance
3980 km
Average flight time
8 hours 57 mins

Your quick guide to flights from Seattle to Boston

Pick up great flights from Seattle to Boston

With Expedia, you have your pick of 28 flights a day with 20 airlines covering flights from Seattle to Boston. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Seattle to Boston that take around 11 hours.

Find cheap flights from Seattle to Boston

From the great flight deals with prices currently ranging from AU$441 to AU$584, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Seattle to Boston around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Boston is normally in October.

Reasons to book your flight from Seattle to Boston with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Seattle to Boston across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Boston right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

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 AU$441. 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.
Boston Flight Deals

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