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Cheap flights from Massachusetts to Seattle from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Seattle departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Massachusetts to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
2:25 pm - 10:30 pm
BOS
-
SEA
11h 05m
2 stops
Southwest Logo
6:00 am - 4:05 pm
SEA
-
BOS
7h 05m
1 stop
$216Southwest
Tue, Apr 28 - Tue, May 5
United Airlines Logo
12:30 pm - 7:00 pm
BOS
-
SEA
9h 30m
1 stop
United Airlines Logo
1:07 pm - 11:59 pm
SEA
-
BOS
7h 52m
1 stop
$252United Airlines
Wed, Apr 15 - Wed, May 6
United Airlines Logo
6:48 pm - 12:34 am
BOS
-
SEA
8h 46m
1 stop
United Airlines Logo
5:45 pm - 6:21 am
SEA
-
BOS
9h 36m
1 stop
$257United Airlines
Fri, Apr 24 - Tue, Apr 28
JetBlue Logo
7:00 am - 10:15 am
BOS
-
SEA
6h 15mnonstop
JetBlue Logo
11:35 am - 8:12 pm
SEA
-
BOS
5h 37mnonstop
$282JetBlue
Wed, May 27 - Tue, Jun 2
American Airlines Logo
2:07 pm - 10:38 pm
ALB
-
SEA
11h 31m
1 stop
American Airlines Logo
1:19 pm - 11:59 pm
SEA
-
ALB
7h 40m
1 stop
$293American Airlines
Tue, May 5 - Wed, May 13
American Airlines Logo
5:30 pm - 12:36 am
ALB
-
SEA
10h 06m
2 stops
American Airlines Logo
1:19 pm - 11:59 pm
SEA
-
ALB
7h 40m
1 stop
$298American Airlines
Tue, May 5 - Wed, May 13
Multiple Airlines Logo
3:34 pm - 9:27 am
BDL
-
SEA
20h 53m
2 stops
Multiple Airlines Logo
10:11 pm - 7:59 pm
SEA
-
BDL
18h 48m
1 stop
$375Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
3:50 pm - 9:52 am
BDL
-
SEA
21h 02m
2 stops
Multiple Airlines Logo
9:19 pm - 7:59 pm
SEA
-
BDL
19h 40m
1 stop
$385Multiple Airlines
Thu, Apr 30 - Mon, May 4
Delta Logo
6:59 pm - 11:44 pm
BDL
-
SEA
7h 45m
1 stop
Delta Logo
7:30 am - 6:50 pm
SEA
-
BDL
8h 20m
1 stop
$437Delta
Wed, May 27 - Tue, Jun 2
JetBlue Logo
2:20 pm - 10:46 pm
PVC
-
SEA
11h 26m
1 stop
JetBlue Logo
11:41 pm - 11:15 am
SEA
-
PVC
8h 34m
1 stop
$916JetBlue
Wed, Jun 17 - Wed, Jun 24

JetBlue flights from Massachusetts to Seattle

Our best JetBlue deals on Massachusetts to Seattle flight tickets
JetBlue
Jun 2
BOS7:00 amBoston Logan Intl
6h 15m
SEA10:15 amSeattle/Tacoma Intl
Jun 9
SEA11:35 amSeattle/Tacoma Intl
5h 37m
BOS8:12 pmBoston Logan Intl
$272
JetBlue
May 27
BOS7:00 amBoston Logan Intl
6h 15m
SEA10:15 amSeattle/Tacoma Intl
Jun 2
SEA11:35 amSeattle/Tacoma Intl
5h 37m
BOS8:12 pmBoston Logan Intl
$282
JetBlue
May 14
BOS7:00 amBoston Logan Intl
6h 20m
SEA10:20 amSeattle/Tacoma Intl
May 18
SEA11:30 amSeattle/Tacoma Intl
5h 35m
BOS8:05 pmBoston Logan Intl
$287

United Airlines flights from Massachusetts to Seattle

Our best United Airlines deals on Massachusetts to Seattle flight tickets
United Airlines
Apr 15
BOS12:30 pmBoston Logan Intl
9h 30m
1 stop
SEA7:00 pmSeattle/Tacoma Intl
May 6
SEA1:07 pmSeattle/Tacoma Intl
7h 52m
1 stop
BOS11:59 pmBoston Logan Intl
$252
United Airlines
Apr 24
BOS6:48 pmBoston Logan Intl
8h 46m
1 stop
SEA12:34 amSeattle/Tacoma Intl
Apr 28
SEA5:45 pmSeattle/Tacoma Intl
9h 36m
1 stop
BOS6:21 amBoston Logan Intl
$257
United Airlines
Apr 15
BOS12:30 pmBoston Logan Intl
9h 30m
1 stop
SEA7:00 pmSeattle/Tacoma Intl
Apr 22
SEA11:59 pmSeattle/Tacoma Intl
8h 02m
1 stop
BOS11:01 amBoston Logan Intl
$281

momondo Fare Finder

 
Customize your flight search to find flights from Massachusetts to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 23, 2026.
Use the filters below to find and compare flights from Massachusetts to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 4/28

2:25 pm-10:30 pm

2 stops11h 05m

Seattle/Tacoma Intl

Tue 5/5

6:00 am-4:05 pm

1 stop7h 05m

$216

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 4/15

12:30 pm-7:00 pm

1 stop9h 30m

Seattle/Tacoma Intl

Wed 5/6

1:07 pm-11:59 pm

1 stop7h 52m

$252

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 4/24

6:48 pm-12:34 am

1 stop8h 46m

Seattle/Tacoma Intl

Tue 4/28

5:45 pm-6:21 am

1 stop9h 36m

$257
Quickest round-trip

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 5/27

7:00 am-10:15 am

Nonstop6h 15m

Seattle/Tacoma Intl

Tue 6/2

11:35 am-8:12 pm

Nonstop5h 37m

$282

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Tue 5/5

2:07 pm-10:38 pm

1 stop11h 31m

Seattle/Tacoma Intl

Wed 5/13

1:19 pm-11:59 pm

1 stop7h 40m

$293

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Tue 5/5

5:30 pm-12:36 am

2 stops10h 06m

Seattle/Tacoma Intl

Wed 5/13

1:19 pm-11:59 pm

1 stop7h 40m

$298

HartfordSeattle

BDL - SEA

BDLSEA

Hartford Bradley Intl

Fri 4/24

3:34 pm-9:27 am

2 stops20h 53m

Seattle/Tacoma Intl

Mon 4/27

10:11 pm-7:59 pm

1 stop18h 48m

$375

HartfordSeattle

BDL - SEA

BDLSEA

Hartford Bradley Intl

Thu 4/30

3:50 pm-9:52 am

2 stops21h 02m

Seattle/Tacoma Intl

Mon 5/4

9:19 pm-7:59 pm

1 stop19h 40m

$385

HartfordSeattle

BDL - SEA

BDLSEA

Hartford Bradley Intl

Wed 5/27

6:59 pm-11:44 pm

1 stop7h 45m

Seattle/Tacoma Intl

Tue 6/2

7:30 am-6:50 pm

1 stop8h 20m

$437

ProvincetownSeattle

PVC - SEA

PVCSEA

Provincetown

Wed 6/17

2:20 pm-10:46 pm

1 stop11h 26m

Seattle/Tacoma Intl

Wed 6/24

11:41 pm-11:15 am

1 stop8h 34m

$916

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Massachusetts to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, May is the cheapest month to fly from Massachusetts to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $311. If you don’t want to visit Seattle in May, then you should wait until September to fly from Massachusetts, when ticket prices are also cheap, with an average price of $317.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Massachusetts is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $408. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Massachusetts because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $505.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Massachusetts in the evening is the least expensive time of day to depart. momondo users have found prices as low as $388 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $466. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Massachusetts to Seattle/Tacoma Intl flight route?

Fly from Boston Logan Intl to Seattle/Tacoma Intl for the best Massachusetts - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Massachusetts when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $377 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Massachusetts for as low as $320 on momondo.

What cabin class options are available on Massachusetts to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Massachusetts to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Massachusetts to Seattle flights?

No. A direct flight is the cheapest option for a flight between Massachusetts to Seattle.

Cheap Massachusetts to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Seattle

Best Price Found

$220

Fastest flight time

6h 07m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Massachusetts in the past 72 hours is $220. The best round-trip flight deal from Massachusetts to Seattle found on momondo in the last 72 hours is $323.
The fastest flight from Massachusetts to Seattle takes 6h 07m
Direct flights go from Massachusetts to Seattle every day.
There is 1 airport in Seattle. From Massachusetts there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • When did momondo last update prices for flights from Massachusetts to Seattle/Tacoma Intl Airport?

    Prices for flights from Massachusetts to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Massachusetts to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Massachusetts to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Massachusetts to Seattle?

Best airlines flying from Massachusetts to Seattle

Compare and see reviews for airlines that fly from Massachusetts to Seattle with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $125Free CancellationRating
7.2
2,909 reviews
Search JetBlue flights
Hawaiian AirlinesPriceFrom $128Free CancellationRating
7.8
2,840 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $149Free CancellationRating
7.9
8,319 reviews
Search Delta flights
Sun Country AirPriceFrom $172Free CancellationRating
6.8
340 reviews
Search Sun Country Air flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,460 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $235Free CancellationRating
7.9
12,097 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,324 reviews
Search Southwest flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Redmond
Marysville
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Fife
Westport
Centralia
Kirkland
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Seattle?

Finding the right flight to Seattle from Massachusetts is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Massachusetts to Seattle with flexible booking policies on momondo?

All flight searches from Massachusetts to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Massachusetts to Seattle?

Once you have performed a search for Massachusetts to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Massachusetts to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Massachusetts to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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