SEA

$120 Find Cheap Flights from Massachusetts to Seattle - Compare and Save

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 8/22. 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, 0 bags

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Flight 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

Tue, Sep 1 - Tue, Sep 15
United Airlines Logo
8:10 am - 4:07 pm
ALB
-
SEA
10h 57m
1 stop
United Airlines Logo
11:00 pm - 10:24 am
SEA
-
ALB
8h 24m
1 stop
$261United Airlines
Tue, Aug 25 - Mon, Aug 31
Southwest Logo
3:05 pm - 11:35 pm
ALB
-
SEA
11h 30m
2 stops
Southwest Logo
11:05 pm - 11:35 am
SEA
-
ALB
9h 30m
1 stop
$266Southwest
Tue, Sep 1 - Tue, Sep 15
Southwest Logo
3:05 pm - 11:35 pm
ALB
-
SEA
11h 30m
2 stops
Southwest Logo
7:10 am - 9:00 pm
SEA
-
ALB
10h 50m
2 stops
$271Southwest
Thu, Sep 10 - Sat, Sep 19
United Airlines Logo
4:53 pm - 10:45 pm
ALB
-
SEA
8h 52m
1 stop
United Airlines Logo
11:00 pm - 10:24 am
SEA
-
ALB
8h 24m
1 stop
$286United Airlines
Fri, Aug 28 - Wed, Sep 2
American Airlines Logo
1:11 pm - 9:59 pm
ALB
-
SEA
11h 48m
1 stop
American Airlines Logo
5:10 am - 3:54 pm
SEA
-
ALB
7h 44m
1 stop
$296American Airlines
Sat, Aug 29 - Sat, Sep 5
JetBlue Logo
7:26 pm - 10:50 pm
BOS
-
SEA
6h 24mnonstop
JetBlue Logo
11:40 pm - 7:59 am
SEA
-
BOS
5h 19mnonstop
$307JetBlue
Sat, Sep 5 - Mon, Sep 14
JetBlue Logo
7:21 pm - 10:44 pm
BOS
-
SEA
6h 23mnonstop
JetBlue Logo
11:55 pm - 8:19 am
SEA
-
BOS
5h 24mnonstop
$309JetBlue
Thu, Oct 1 - Sun, Oct 4
American Airlines Logo
7:03 am - 12:50 pm
BDL
-
SEA
8h 47m
1 stop
American Airlines Logo
11:57 pm - 11:41 am
SEA
-
BDL
8h 44m
1 stop
$415American Airlines
Tue, Aug 4 - Mon, Aug 17
Multiple Airlines Logo
6:05 pm - 11:04 am
BDL
-
SEA
19h 59m
1 stop
Multiple Airlines Logo
8:53 pm - 6:20 am
SEA
-
BDL
30h 27m
1 stop
$431Multiple Airlines
Tue, Aug 4 - Wed, Aug 19
Multiple Airlines Logo
6:05 pm - 11:04 am
BDL
-
SEA
19h 59m
1 stop
Multiple Airlines Logo
8:53 pm - 10:42 pm
SEA
-
BDL
22h 49m
2 stops
$436Multiple Airlines
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Good to know

Low seasonJanuary
Cheapest flight$120
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Hartford 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 Airlines
BOS
-
SEA
Mar 2026
Other smaller airports in the area may be more convenient, but the nonstop from Logan and the red-eye from Seattle suit me better than switching to connecting flights.
Verified travelerFlew with Alaska Airlines
BOS
-
SEA
Oct 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 Airlines
BOS
-
SEA
May 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)