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

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

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Frequently asked questions

How long does it take to fly from Sea-Tac Airport to BOS?
Book a ticket with Alaska Airlines and you can expect to be traveling for around 5 hours and 20 minutes. This sought-after carrier operates a direct flight that sets off at 3:39PM from Seattle - Tacoma Intl. Airport (SEA) and touches down at Logan Intl. Airport at 11:59PM. Expedia has some great flight deals, so check out what's available on this route today.
Is it cheaper to buy a plane ticket from Sea-Tac Airport to BOS last minute?
Booking your trip from Sea-Tac Airport to Logan Intl. Airport last minute could help you save if you're lucky to find a terrific deal. However, tickets generally don't get cheaper closer to the departure date. If you choose to wait, flights could also be sold out or the best seats taken (because who wants the middle seat?). If you'd rather play it safe, book well in advance of your departure date. Note that some of the biggest deals can be found up to a year in advance. If your favorite airline hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.
What airline has the least delays from Sea-Tac Airport to Logan Intl. Airport (BOS)?
Achieving an on-time rate of 80%, Alaska Airlines is the airline most likely to get you from SEA to Logan Intl. Airport without any delays. Flight delays aren't just frustrating — they can also cause you to miss an important connection that upends your vacation. Keep updated about any delays by reviewing your flight status through the free Expedia App before you even reach the airport. If you're already at your gate and your plans will be significantly impacted, visit the customer service desk to find out what your options are.
What airports do you fly into for Boston from Seattle?
With Logan Intl. Airport (BOS), Manchester-Boston Regional Airport (MHT) and Provincetown Municipal Airport (PVC) to select from, connecting from Seattle to Boston is a breeze. The city's main gateway, Logan Intl. Airport (BOS), is about 3 kilometers east of the center. Besides the price of fares, consider things like public transportation options from the airport and the distance to your hotel when deciding where to touch down. Get your Boston trip off to a superb start by visiting Fenway Park and Boston Common.
What are the most popular departure times for flights from SEA to Logan Intl. Airport (BOS)?
The most popular departure times for trips from Sea-Tac Airport to BOS are between 3:00 PM - 4:00 PM on Delta Air Lines. A good tip is to depart in the morning. The earlier you set off, the better your chances of arriving on time with lighter air traffic in the sky.
Can I change the date of my flight from Sea-Tac Airport to Logan Intl. Airport (BOS)?
Make changes quickly to your Sea-Tac Airport to Logan Intl. Airport (BOS) flight by logging in to the Expedia Trips portal. But before amending dates or times, check out the rules and conditions in your itinerary to see what the airline will let you do and if fees apply. Some airlines charge a change fee per person, in addition to any difference in fares. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also browse our Customer Service portal for further information and to chat with our Virtual Agent.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Logan Intl.
Distance
3980 km
Average flight time
8 hours 59 mins

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Seattle to Boston Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Seattle to Boston offer the perfect respite. Not only does exploring Boston provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Seattle to Boston may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Boston are only a plane trip away. Book your travel arrangements with us today!

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Seattle to Boston Flights