BOS to SEA (Boston to Seattle) Flights

Last Minute Flights from BOS to SEA

Best airfare and ticket deals for BOS to SEA flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
BOSSeattleApril 5 to April 9$247
*Prices include taxes and fees

Cheapest BOS to SEA Flights

Best airfare and ticket deals for BOS to SEA flights are based on recent deals found by Expedia.com customers within the past 7 days.

OriginDestinationTravel DatesFlights From*
BOSSeattleApril 24 to April 26$181
BOSSeattleMay 8 to May 21$236
BOSSeattleApril 8 to April 10$240
BOSEverettApril 23 to May 7$410
*Prices include taxes and fees
BOS to SEA Flight Details
Origin airport
Logan Intl.
Origin airport IATA code
BOS
Destination airport
Seattle - Tacoma Intl.
Destination airport IATA code
SEA
Distance
2487 mi

Frequently asked questions

Which airlines with flights from BOS to SEA allow free cancellation due to COVID-19?
To find airlines that allow COVID-19 related changes, use our filter tool. Get started by typing in your travel dates. Then, once the available flights are displayed, check the “No change fee” box under “Flexible change policies” to the left. Read over the airline’s cancellation policies before reserving your Logan International Airport to SEA fare.
What airlines fly direct from Boston, MA Airport (BOS-Logan Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.)?
Check out Delta (DL). It offers 86 flights a month that jet straight from Boston, MA Airport (BOS-Logan Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.). With 82 nonstop monthly services of its own on this journey, Alaska Airlines (AS) is another carrier to keep in mind.
How many flights are there from BOS to SEA?
Around 6 a day. If you’re in a hurry to visit Seattle, see if you can score a great last-minute deal from Boston, MA Airport (BOS-Logan Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) and then book it pronto!
How long does it take to fly from Boston, MA Airport (BOS-Logan Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.)?
Boston, MA Airport (BOS-Logan Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.) takes on average 6 hours and 20 minutes. That’s the perfect amount of time to get stuck into an epic new series, listen to a podcast or settle back and catch some z’s.
What is the flight distance from Boston, MA Airport (BOS-Logan Intl.) to Seattle, WA Airport (SEA-Seattle - Tacoma Intl.)?
Approximately 2500 miles (4000 km). This means it’s a long-haul journey, so make sure your hand luggage is loaded with essentials like a travel pillow, a sleeping mask and a sweater.
How many morning flights are there from BOS to SEA?
There are at least 25 flights in the morning from BOS to SEA per week. Popular carrier Delta (DL) offers 13 weekly services that depart before midday. The earliest leaves the runway at 11:05AM.
How many afternoon flights are there from BOS to SEA?
There are 21 afternoon and evening flights from BOS to SEA a week. Delta (DL) has 7 weekly flights after midday. With the first one leaving at 9:35PM, you’ll have time to peruse the gift shops.
What is the earliest departure time out of Boston to Seattle?
Head out from BOS at 7:05AM and hit the tarmac at SEA at 1:20PM. This is the earliest service you’ll find on this route.
What is the latest departure time out of Boston to Seattle?
Reserve a ticket for the 5:55PM flight out of BOS, arriving at 12:10AM at SEA, and allow yourself time to look after any last-minute vacation preparations. This is the latest flight you can take on this route.
What is the average price from Boston to Seattle?
On average, the lowest price for a round-trip airfare from BOS to SEA is $181. Pick up your own great bargain by locking in your seats soon. This price was available on Flights.com within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Boston to Seattle Flights

Whether it’s for an obligation or the sake of your sanity, sometimes you need to get away. Maybe you need flights from Boston to Seattle to attend your cousin’s wedding, to pitch a business idea to your boss, or perhaps simply to treat yourself to a mini vacation. Regardless of the reasons behind packing your bags and needing to find the cheapest flights from BOS to SEA, we’ve got you covered here at Flights.com.

We present you with some of the hottest deals on airfare so stop that Google flights search. We want you to spend less on your flight from Boston to Seattle, so you can spend more during your getaway. With Flights.com, you’ll find it simple to land airline tickets with itineraries matching your travel schedule. What’s more, we provide you with all the information you need to confidently make reservations on your family, business, or personal trip.