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>

$110 CHEAP FLIGHTS from Massachusetts to Seattle

SEA

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Flights Deals

Cheap Flight Deals 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Massachusetts to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from Massachusetts to Seattle.

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

7:00 am - 10:19 amBOS-SEA

6h 19mnonstop

11:30 am - 7:57 pmSEA-BOS

5h 27mnonstop

$237JetBlue

Find Deal

Thu, Sep 4 - Sat, Sep 13

10:04 am - 2:25 pmBOS-SEA

31h 21m2 stops

3:20 pm - 4:24 pmSEA-BOS

22h 04m2 stops

$239Spirit Airlines

Find Deal

Tue, May 27 - Tue, Jun 3

6:52 pm - 10:00 pmBOS-SEA

6h 08mnonstop

3:40 pm - 12:06 amSEA-BOS

5h 26mnonstop

$243Hawaiian Airlines

Find Deal

Sat, May 24 - Fri, May 30

7:30 am - 10:40 amBOS-SEA

6h 10mnonstop

3:40 pm - 12:06 amSEA-BOS

5h 26mnonstop

$246Hawaiian Airlines

Find Deal

Sat, May 24 - Fri, May 30

6:00 am - 8:41 pmBOS-SEA

17h 41m1 stop

11:00 pm - 7:20 amSEA-BOS

5h 20mnonstop

$252Alaska Airlines

Find Deal

Sat, May 17 - Sat, May 17

7:45 am - 4:51 pmBOS-SEA

12h 06m1 stop

5:45 pm - 6:25 amSEA-BOS

9h 40m1 stop

$256Alaska Airlines

Find Deal

Thu, Sep 4 - Thu, Sep 11

6:00 am - 11:25 amBOS-SEA

8h 25m1 stop

5:40 pm - 6:13 amSEA-BOS

9h 33m1 stop

$262United Airlines

Find Deal

Thu, May 15 - Tue, May 20

11:14 am - 8:02 pmBOS-SEA

11h 48m1 stop

6:18 am - 4:39 pmSEA-BOS

7h 21m1 stop

$266American Airlines

Find Deal

Tue, Aug 26 - Tue, Sep 9

11:14 am - 8:02 pmBOS-SEA

11h 48m1 stop

9:15 pm - 7:53 amSEA-BOS

7h 38m1 stop

$301American Airlines

Find Deal

Tue, Aug 12 - Tue, Aug 26

6:10 am - 11:32 amALB-SEA

8h 22m1 stop

11:23 pm - 10:13 amSEA-ALB

7h 50m1 stop

$307United Airlines

Find Deal

Tue, May 27 - Tue, Jun 3

Useful Info

Low season	February
High season	July
Cheapest flight	$110

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 15% increase in price.

Flight from Boston to Seattle

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.

Verified travelerFlew with Alaska AirlinesBOS-SEASep 2024

I've always had my best luck with Delta and will stick with them in the future.

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.

GFlew with Alaska AirlinesBOS-SEAApr 2024

Would have liked to have more information on getting to my rental car off site It wasn't hard, but it would have taken less time and less wandering if it had been more clear

DavidFlew with Alaska AirlinesBOS-SEAFeb 2024

Not enough trips from Boston to Seattle to judge… flight times and boarding process were very positive.

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

Airports

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

$110 Find Cheap Flights from Massachusetts to Seattle

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

Cheap Flight Deals 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.

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