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Cheap flights from Massachusetts to Seattle from $154

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 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
JetBlue Logo
7:00 am - 10:17 am
BOS
-
SEA
6h 17mnonstop
JetBlue Logo
11:35 am - 8:14 pm
SEA
-
BOS
5h 39mnonstop
$282JetBlue
Wed, May 27 - Wed, Jun 3
JetBlue Logo
7:00 am - 10:17 am
BOS
-
SEA
6h 17mnonstop
JetBlue Logo
11:35 am - 8:14 pm
SEA
-
BOS
5h 39mnonstop
$283JetBlue
Tue, May 26 - Wed, May 27
JetBlue Logo
7:00 am - 10:17 am
BOS
-
SEA
6h 17mnonstop
JetBlue Logo
11:35 am - 8:14 pm
SEA
-
BOS
5h 39mnonstop
$287JetBlue
Tue, May 26 - Wed, Jun 3
JetBlue Logo
7:00 am - 10:17 am
BOS
-
SEA
6h 17mnonstop
JetBlue Logo
11:35 am - 8:12 pm
SEA
-
BOS
5h 37mnonstop
$290JetBlue
Thu, May 28 - Sat, Jun 6
Multiple Airlines Logo
7:11 pm - 10:27 pm
BOS
-
SEA
6h 16mnonstop
Multiple Airlines Logo
11:35 am - 8:12 pm
SEA
-
BOS
5h 37mnonstop
$291Multiple Airlines
Tue, Jun 2 - Sat, Jun 6
Alaska Airlines Logo
7:11 pm - 10:27 pm
BOS
-
SEA
6h 16mnonstop
Alaska Airlines Logo
3:30 pm - 11:59 pm
SEA
-
BOS
5h 29mnonstop
$297Alaska Airlines
Tue, May 26 - Sat, May 30
Delta Logo
5:20 pm - 8:33 pm
BOS
-
SEA
6h 13mnonstop
Delta Logo
7:15 am - 3:55 pm
SEA
-
BOS
5h 40mnonstop
$298Delta
Sat, May 23 - Sat, May 30
American Airlines Logo
6:55 am - 2:32 pm
ALB
-
SEA
10h 37m
1 stop
American Airlines Logo
11:59 pm - 10:26 am
SEA
-
ALB
7h 27m
1 stop
$375American Airlines
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
6:17 am - 11:46 am
ALB
-
SEA
8h 29m
1 stop
American Airlines Logo
10:35 pm - 10:24 am
SEA
-
ALB
8h 49m
1 stop
$387American Airlines
Wed, May 27 - Mon, Jun 1
Multiple Airlines Logo
7:00 am - 6:35 pm
BDL
-
SEA
14h 35m
2 stops
Multiple Airlines Logo
8:12 pm - 6:15 am
SEA
-
BDL
31h 03m
1 stop
$405Multiple Airlines
Mon, Jun 8 - Wed, Jun 10

JetBlue flights from Massachusetts to Seattle

Our best JetBlue deals on Massachusetts to Seattle flight tickets
JetBlue
May 27
BOS7:00 amBoston Logan Intl
6h 17m
SEA10:17 amSeattle/Tacoma Intl
Jun 3
SEA11:35 amSeattle/Tacoma Intl
5h 39m
BOS8:14 pmBoston Logan Intl
$282
JetBlue
May 26
BOS7:00 amBoston Logan Intl
6h 17m
SEA10:17 amSeattle/Tacoma Intl
May 27
SEA11:35 amSeattle/Tacoma Intl
5h 39m
BOS8:14 pmBoston Logan Intl
$283
JetBlue
May 26
BOS7:00 amBoston Logan Intl
6h 17m
SEA10:17 amSeattle/Tacoma Intl
Jun 3
SEA11:35 amSeattle/Tacoma Intl
5h 39m
BOS8:14 pmBoston Logan Intl
$287

Alaska Airlines flights from Massachusetts to Seattle

Our best Alaska Airlines deals on Massachusetts to Seattle flight tickets
Alaska Airlines
Jun 2
BOS7:20 amBoston Logan Intl
6h 18m
SEA10:38 amSeattle/Tacoma Intl
Jun 2
SEA3:30 pmSeattle/Tacoma Intl
5h 29m
BOS11:59 pmBoston Logan Intl
$296
Alaska Airlines
May 26
BOS7:11 pmBoston Logan Intl
6h 16m
SEA10:27 pmSeattle/Tacoma Intl
May 30
SEA3:30 pmSeattle/Tacoma Intl
5h 29m
BOS11:59 pmBoston Logan Intl
$297
Alaska Airlines
Jun 2
BOS6:00 amBoston Logan Intl
10h 14m
1 stop
SEA1:14 pmSeattle/Tacoma Intl
Jun 2
SEA3:30 pmSeattle/Tacoma Intl
5h 29m
BOS11:59 pmBoston Logan Intl
$301

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 May 3, 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

Wed 5/27

7:00 am-10:17 am

Nonstop6h 17m

Seattle/Tacoma Intl

Wed 6/3

11:35 am-8:14 pm

Nonstop5h 39m

$282

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 5/26

7:00 am-10:17 am

Nonstop6h 17m

Seattle/Tacoma Intl

Wed 5/27

11:35 am-8:14 pm

Nonstop5h 39m

$283

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 5/26

7:00 am-10:17 am

Nonstop6h 17m

Seattle/Tacoma Intl

Wed 6/3

11:35 am-8:14 pm

Nonstop5h 39m

$287

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Thu 5/28

7:00 am-10:17 am

Nonstop6h 17m

Seattle/Tacoma Intl

Sat 6/6

11:35 am-8:12 pm

Nonstop5h 37m

$290

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 6/2

7:11 pm-10:27 pm

Nonstop6h 16m

Seattle/Tacoma Intl

Sat 6/6

11:35 am-8:12 pm

Nonstop5h 37m

$291
Quickest round-trip

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 5/26

7:11 pm-10:27 pm

Nonstop6h 16m

Seattle/Tacoma Intl

Sat 5/30

3:30 pm-11:59 pm

Nonstop5h 29m

$297

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 5/23

5:20 pm-8:33 pm

Nonstop6h 13m

Seattle/Tacoma Intl

Sat 5/30

7:15 am-3:55 pm

Nonstop5h 40m

$298

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Tue 8/18

6:55 am-2:32 pm

1 stop10h 37m

Seattle/Tacoma Intl

Tue 8/25

11:59 pm-10:26 am

1 stop7h 27m

$375

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Wed 5/27

6:17 am-11:46 am

1 stop8h 29m

Seattle/Tacoma Intl

Mon 6/1

10:35 pm-10:24 am

1 stop8h 49m

$387

HartfordSeattle

BDL - SEA

BDLSEA

Hartford Bradley Intl

Mon 6/8

7:00 am-6:35 pm

2 stops14h 35m

Seattle/Tacoma Intl

Wed 6/10

8:12 pm-6:15 am

1 stop31h 03m

$405

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, March 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 $108. If you don’t want to visit Seattle in March, then you should wait until January to fly from Massachusetts, when ticket prices are also cheap, with an average price of $153.

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 $416. 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 $523.

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

Flying to Seattle from Massachusetts in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $397 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $479. 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 from Massachusetts 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 $390 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 $341 on momondo.

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

$213

Fastest flight time

6h 10m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Massachusetts in the past 72 hours is $213. The best round-trip flight deal from Massachusetts to Seattle found on momondo in the last 72 hours is $401.
The fastest flight from Massachusetts to Seattle takes 6h 10m
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

Frequently asked questions about flying from Massachusetts to Seattle

  • 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
Hawaiian AirlinesPriceFrom $118Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
JetBluePriceFrom $133Free CancellationRating
7.1
2,966 reviews
Search JetBlue flights
DeltaPriceFrom $153Free CancellationRating
7.9
8,459 reviews
Search Delta flights
Sun Country AirPriceFrom $172Free CancellationRating
6.8
335 reviews
Search Sun Country Air flights
SouthwestPriceFrom $188Free CancellationRating
8.0
4,310 reviews
Search Southwest flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,682 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $233Free CancellationRating
7.9
12,322 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.1
11,674 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
Redmond
Kent
Marysville
Puyallup
Tukwila
Lakewood
Cle Elum
Federal Way
Centralia
Fife
Shoreline
Westport
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.

An easier way to manage your Seattle trip

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