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

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Flights from Boston (BOS) to Seattle (SEA)
Origin airport
Logan Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
2487 mi
Average flight time
3 hours 9 mins

Boston to Seattle Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Boston to Seattle offer the perfect respite. Not only does exploring Seattle 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 Boston to Seattle 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 BOS to SEA 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 Seattle are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Seattle more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is now!

Frequently asked questions

How much is a one-way flight from BOS to Sea-Tac Airport?
You can score one-way Boston flights to Seattle starting from just $93. This data is based on the best fare found on Expedia for this route with a departure date in the next three months and was last updated on May 7 2024 and has not changed since. This specific airfare is for an Spirit Airlines service, heading off from Logan Intl. Airport on May 29 2024 and touching down at Seattle - Tacoma Intl. Airport (SEA).
How long does it take to fly from BOS to Sea-Tac Airport?
Book your trip with Alaska Airlines and you can expect to be cruising the skies for approximately 6 hours and 12 minutes. This top carrier has a direct flight that leaves at 9:30AM from BOS and lands at Seattle - Tacoma Intl. Airport (SEA) at 12:42PM. Expedia has some incredible flight deals, so check out what’s on offer on this route today.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) last minute?
When it comes to booking your flights, being prepared pays off. While you may be able to find a deal on a Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) flight at the last minute, tickets usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international travel it’s between three and four months.
What is the cheapest airline flying from BOS to SEA in the next 90 days?
Based on airfares found on Expedia with a departure date within the next 90 days, Spirit Airlines is the cheapest airline flying from Boston to Seattle. The fare for this journey starts at $93. This flight leaves Logan Intl. Airport (BOS) on May 29 2024 and touches down at SEA. The price was last updated on May 7 2024 and has not changed since.
What's the cheapest price for a flight from BOS to SEA next month?
The lowest price for a one-way flight from Boston to Seattle over the next month is $93. If you want to travel soon, lock in this fare before it’s gone. This ticket price was found after looking through all available flights on Expedia with a departure date within the next 30 days. This fare is for a one-way Spirit Airlines flight leaving BOS on May 29 2024 and getting into SEA. Pricing info was updated on May 7 2024 and has not changed since.
What airline has the least delays from Logan Intl. Airport (BOS) to Sea-Tac Airport?
With an on-time arrival score of 90%, Delta Air Lines is the carrier that’s most likely to fly you from Logan Intl. Airport to Seattle - Tacoma Intl. Airport (SEA) without any travel delays. Flight delays aren’t just an unpleasant experience — they can also lead you to missing a connection or even ruin your vacation. Keep updated about any delays by checking your flight status through the free Expedia App before you head for the airport. If you’re already at your gate and the delay is significant, head to the customer service desk to work out your next move.
Can I find cheap nonstop flights from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) in the next three months?
The lowest price we can find for a roundtrip nonstop flight from Boston to Seattle in the next 90 days is $341. This amount is based on all available flights on Expedia with a departure date in the next three months. This airfare is for a flight via Alaska Airlines leaving from Logan Intl. Airport on June 1 2024 and landing at Sea-Tac Airport, with a return journey on June 8 2024. This price was updated on May 7 2024.You can easily source nonstop cheap flights from Logan Intl. Airport to Sea-Tac Airport by using our filters. Start by typing in details of your journey, then press on “Nonstop” under “Filter by” to the left of the page. Your results will be arranged with the lowest fare first. If you don’t have to fly on a specific day, make use of our handy “Flexible dates” feature. This lets you compare prices on surrounding days and snag the best possible deal.
What airports do you fly into for Seattle from Boston?
Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) are your choices when flying from Boston to Seattle. Around 12 mi south of the center of Seattle, Seattle - Tacoma Intl. Airport (SEA) is the city’s main gateway. Keep in mind factors such as flight arrival and departure times and the distance to your hotel before settling on an airport. Space Needle and Pike Place Market are a couple of top attractions to check out when you arrive.
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to SEA?
For Delta Air Lines flights heading from BOS to Sea-Tac Airport, the busiest period is between 6:00 AM - 7:00 AM. If you want to avoid delays, fly out in the morning. This way you’re more likely to escape the air traffic that builds up later in the day.
Can I change the date of my flight from BOS to Sea-Tac Airport?
It’s so easy to make amendments to your Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) trip yourself. Just go to the Expedia Trips portal and click on “change flight.” Look around for new flights and choose the one that fits your plans. You’ll see an estimate of your flight change cost, if applicable. Alternatively, visit our Customer Service portal to chat to our Virtual Agent and get answers to all your questions.
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