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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$134 CHEAP FLIGHTS from Massachusetts to Seattle

SEA

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

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Cheapest round-trip

$282

Overall average: $279

Alaska Airlines

Fri 3/6Tue 3/10

BOS - SEA • 1 stop

Cheapest non-stop

$297

Typical prices: $217-$357

Delta

Wed 3/25Sun 3/29

BOS - SEA • Non-stop

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Seattle!

Flight Deals

Cheap Flights from Massachusetts to Seattle

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Massachusetts to Seattle

Fri, Mar 6 - Tue, Mar 10

5:44 pm - 9:28 am

BOS

SEA

18h 44m

1 stop

3:42 pm - 11:59 pm

SEA

BOS

5h 17mnonstop

$282Alaska Airlines

Wed, Feb 11 - Tue, Feb 17

7:15 am - 10:45 am

BOS

SEA

6h 30mnonstop

9:55 pm - 3:15 pm

SEA

BOS

14h 20m

1 stop

$285Delta

Sat, May 23 - Sat, May 30

7:35 pm - 12:45 am

BOS

SEA

8h 10m

1 stop

2:15 pm - 1:09 am

SEA

BOS

7h 54m

1 stop

$286United Airlines

Wed, May 13 - Tue, May 19

2:55 pm - 8:53 pm

BOS

SEA

8h 58m

1 stop

11:30 am - 8:05 pm

SEA

BOS

5h 35mnonstop

$287JetBlue

Tue, Apr 14 - Tue, Apr 21

2:25 pm - 10:30 pm

BOS

SEA

11h 05m

2 stops

7:10 pm - 8:15 am

SEA

BOS

10h 05m

2 stops

$288Southwest

Wed, Feb 11 - Mon, Feb 16

6:10 am - 2:10 pm

BOS

SEA

11h 00m

1 stop

10:57 pm - 12:29 pm

SEA

BOS

10h 32m

1 stop

$290American Airlines

Thu, Feb 19 - Tue, Feb 24

9:30 am - 7:43 pm

BOS

SEA

13h 13m

1 stop

10:20 pm - 6:50 am

SEA

BOS

5h 30mnonstop

$291Delta

Fri, Mar 6 - Tue, Mar 10

4:49 pm - 11:04 pm

BOS

SEA

9h 15m

1 stop

1:37 pm - 12:05 am

SEA

BOS

7h 28m

1 stop

$292American Airlines

Thu, Feb 19 - Sun, Feb 22

12:35 pm - 7:03 pm

BOS

SEA

9h 28m

1 stop

11:59 pm - 12:46 pm

SEA

BOS

9h 47m

1 stop

$293United Airlines

Wed, Mar 11 - Tue, Mar 17

12:40 pm - 10:30 pm

ALB

SEA

12h 50m

2 stops

9:00 am - 11:10 pm

SEA

ALB

11h 10m

2 stops

$370Southwest

Useful Info

Low season	January
High season	July
Cheapest flight	$134

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly with an average 16% increase in price.

Flight from Hartford to Seattle

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.

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.

Lynnwood

Centralia

Fife

Lakewood

Mukilteo

Westport

Lacey

Edmonds

Poulsbo

Aberdeen

Woodinville

Shoreline

DuPont

Monroe

Castle Rock

Edgewood

Everything you need to know for your flight to Seattle

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Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Seattle

Seattle (SEA)

SEA

$134 Find Cheap Flights from Massachusetts to Seattle

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

Everything you should know

Cheap Flights from Massachusetts to Seattle

Recent round-trip flight deals from Massachusetts to Seattle

Recent one-way flight deals from Massachusetts to Seattle

Recent last minute flight deals from Massachusetts to Seattle

Recent direct flight deals from Massachusetts to Seattle

Good to know

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

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.

Traveling to a place near Seattle?

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Cabin class types available on flights to Massachusetts

Complete your trip to Seattle with a hotel stay or car rental

Find direct flights for Seattle

Flights to other popular destinations

Flights from domestic origins to Seattle

Choose which airport to fly into in Seattle

Find deals for your return flight