SEA

$99 Find Cheap Flights from Massachusetts to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Flights Deals

Cheap Flights from Massachusetts to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Massachusetts to Seattle

Wed, Sep 24 - Wed, Sep 24
Alaska Airlines Logo
9:20 am - 12:30 pmBOS-SEA
6h 10mnonstop
Alaska Airlines Logo
3:59 pm - 12:23 amSEA-BOS
5h 24mnonstop
$191Alaska Airlines
Find Deal
Tue, Jul 22 - Tue, Jul 29
Delta Logo
7:25 am - 10:44 amBOS-SEA
6h 19mnonstop
Delta Logo
3:50 pm - 12:15 amSEA-BOS
5h 25mnonstop
$197Delta
Find Deal
Sat, Sep 13 - Wed, Sep 24
JetBlue Logo
7:00 am - 10:19 amBOS-SEA
6h 19mnonstop
JetBlue Logo
11:30 am - 8:03 pmSEA-BOS
5h 33mnonstop
$207JetBlue
Find Deal
Wed, Sep 24 - Thu, Sep 25
JetBlue Logo
7:00 am - 10:19 amBOS-SEA
6h 19mnonstop
JetBlue Logo
11:30 am - 8:03 pmSEA-BOS
5h 33mnonstop
$217JetBlue
Find Deal
Wed, Aug 13 - Wed, Aug 20
American Airlines Logo
5:29 am - 2:15 pmBOS-SEA
11h 46m1 stop
American Airlines Logo
6:34 am - 6:41 pmSEA-BOS
9h 07m1 stop
$220American Airlines
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Mon, Aug 18 - Tue, Aug 26
American Airlines Logo
5:29 am - 2:15 pmBOS-SEA
11h 46m1 stop
American Airlines Logo
6:10 am - 4:50 pmSEA-BOS
7h 40m1 stop
$228American Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 9
Hawaiian Airlines Logo
7:45 am - 4:51 pmBOS-SEA
12h 06m1 stop
Hawaiian Airlines Logo
3:59 pm - 12:23 amSEA-BOS
5h 24mnonstop
$232Hawaiian Airlines
Find Deal
Wed, Aug 27 - Wed, Aug 27
Hawaiian Airlines Logo
7:20 am - 10:33 amBOS-SEA
6h 13mnonstop
Hawaiian Airlines Logo
3:59 pm - 12:23 amSEA-BOS
5h 24mnonstop
$242Hawaiian Airlines
Find Deal
Wed, Jul 30 - Tue, Aug 5
Southwest Logo
11:35 am - 11:15 pmBOS-SEA
14h 40m1 stop
Southwest Logo
5:15 am - 8:45 pmSEA-BOS
12h 30m1 stop
$293Southwest
Find Deal
Thu, Aug 14 - Thu, Aug 21
Southwest Logo
6:30 pm - 12:05 amBOS-SEA
8h 35m1 stop
Southwest Logo
11:10 pm - 10:00 amSEA-BOS
7h 50m1 stop
$297Southwest
Find Deal
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Good to know

Low seasonFebruary
High seasonJuly
Cheapest flight$99
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Boston to Seattle

Flights from Massachusetts to Seattle: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Massachusetts to Seattle 
Learn how KAYAK collects reviews and tips from users.
Verified travelerFlew with Alaska AirlinesBOS-SEAOct 2024
Flying Alaska Airlines from Boston to Seattle was an example of getting exactly what you expect. A no-frills basic experience, but one where the important things were accomplished, timely departure, on-time arrival, no drama, no glitches, completely as anticipated. I paid a little extra for one offered perk (seat selection), and I'm glad I did because my early morning flight was full. Next time, I'll likely pre-order a snack, since they looked good, were served promptly, and are priced right.
CarlaFlew with Alaska AirlinesBOS-SEAMay 2024
It’s a good choice. Seattle airport is huge and confusing if you are changing planes. Have plenty of time to switch.

FAQs for booking flights from Massachusetts to Seattle

  • How does KAYAK find such low prices on flights from Massachusetts to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Massachusetts to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Massachusetts with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Seattle (SEA)

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