AED390 Cheap Flights from Boston (BOS) to Seattle (SEA)

View AED390 flight on Tue, 18 November 2025Opens in a new window

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

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Cheap Flights from Boston to Seattle (BOS-SEA)

Prices were available within the past 7 days and start at AED390 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Boston (BOS) to Seattle (SEA)
Origin airport
Logan Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
3980 km
Average flight time
3 hours 51 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 AED390 now!

Frequently asked questions

How long does it take to fly from Logan Intl. Airport (BOS) to SEA?
Purchase your ticket with Alaska Airlines and you can expect to be cruising the skies for about 6 hours and 14 minutes. This carrier operates a direct flight that departs at 11:00AM from Logan Intl. Airport and comes in to land at Seattle - Tacoma Intl. Airport (SEA) at 2:14PM. 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 BOS to Sea-Tac Airport last minute?
Booking your trip from Logan Intl. Airport to Sea-Tac Airport last minute could save you cash if you get lucky and find a real bargain. However, airfares generally don't get cheaper closer to the departure date. If you procrastinate, flights could also be booked out or the best seats long gone. If you don't want to risk it, book well ahead of the date you want to leave. In fact, Expedia has some of the biggest deals up to 12 months in advance. If your preferred carrier hasn't released its fares yet, check back regularly as offers are updated on Expedia constantly.
What airline has the least delays from Logan Intl. Airport (BOS) to SEA?
Achieving an on-time rate of 100%, Delta Air Lines is the airline that's most likely to fly you from BOS to Sea-Tac Airport without any travel delays. Flight delays aren't just an annoyance — they can also make you miss an important connection or even ruin your entire trip. You can keep updated by checking your flight status through the free Expedia App before heading to the airport. If you're already there and the delay is significant, head to the customer service desk to find out your next steps.
What airports do you fly into for Seattle from Boston?
From Boston, you can journey to Seattle via Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI). Determine which hub is the most convenient for you before you make a decision. If you pick Seattle - Tacoma Intl. Airport (SEA), it's approximately 19 kilometers south of downtown. Use the money you save when booking your trip with Expedia to check out the city's popular sights, such as Space Needle and Pike Place Market.
What are the most popular departure times for flights from Logan Intl. Airport to Sea-Tac Airport?
The most popular departure times for journeys from Logan Intl. Airport (BOS) to Seattle - Tacoma Intl. Airport (SEA) fall between 6:00 AM - 7:00 AM on Delta Air Lines. One helpful tip is to depart in the morning. The earlier you set off, the better your chances of arriving on time with lighter air traffic around.
Can I change the date of my flight from BOS to Seattle - Tacoma Intl. Airport (SEA)?
We know plans can change, so Expedia is here to help make things easier. First, access your Logan Intl. Airport to SEA itinerary through the Expedia Trips portal and check the fare rules and conditions about what changes are allowed. If you booked in the last 24 hours, some airlines will let you cancel without charge and organize new flights. If you booked your fare more than 24 hours ago, connect with us via our Customer Service portal to learn more about your options.

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