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Cheap flights from Seattle to Massachusetts from $128

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Massachusetts departing on 3/2. 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
0 bags

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Find the cheapest flights from Seattle to Massachusetts

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
3:40 pm - 11:54 pm
SEA
-
BOS
5h 14mnonstop
Alaska Airlines Logo
6:44 pm - 10:17 pm
BOS
-
SEA
6h 33mnonstop
$292Alaska Airlines
Wed, Jan 7 - Sun, Jan 11
Multiple Airlines Logo
12:40 pm - 6:00 am
SEA
-
BDL
14h 20m1 stop
Multiple Airlines Logo
7:00 am - 4:29 pm
BDL
-
SEA
12h 29m2 stops
$293Multiple Airlines
Sat, Jan 10 - Mon, Jan 12
Delta Logo
10:25 pm - 6:50 am
SEA
-
BOS
5h 25mnonstop
Delta Logo
7:30 am - 10:24 pm
BOS
-
SEA
17h 54m1 stop
$295Delta
Thu, Jan 8 - Tue, Jan 13
Delta Logo
7:15 am - 12:18 am
SEA
-
BOS
14h 03m1 stop
Delta Logo
6:45 pm - 10:13 pm
BOS
-
SEA
6h 28mnonstop
$296Delta
Sat, Jan 10 - Mon, Jan 12
American Airlines Logo
6:12 am - 5:06 pm
SEA
-
BOS
7h 54m1 stop
American Airlines Logo
4:18 pm - 10:20 pm
BOS
-
SEA
9h 02m1 stop
$297American Airlines
Sat, Jan 24 - Sat, Jan 31
American Airlines Logo
8:04 am - 10:31 pm
SEA
-
BOS
11h 27m1 stop
American Airlines Logo
12:30 pm - 10:20 pm
BOS
-
SEA
12h 50m1 stop
$298American Airlines
Sat, Jan 17 - Sat, Jan 24
United Airlines Logo
8:40 am - 9:52 pm
SEA
-
BOS
10h 12m2 stops
United Airlines Logo
6:00 am - 11:32 am
BOS
-
SEA
8h 32m1 stop
$302United Airlines
Wed, Jan 14 - Wed, Jan 21
Southwest Logo
5:15 am - 3:35 pm
SEA
-
ALB
7h 20m1 stop
Southwest Logo
1:10 pm - 9:05 pm
ALB
-
SEA
10h 55m1 stop
$334Southwest
Sat, Jan 10 - Sat, Jan 17
Southwest Logo
7:00 am - 9:55 pm
SEA
-
ALB
11h 55m2 stops
Southwest Logo
1:10 pm - 9:05 pm
ALB
-
SEA
10h 55m1 stop
$339Southwest
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
5:00 am - 9:22 pm
SEA
-
ALB
13h 22m2 stops
United Airlines Logo
9:50 am - 6:14 pm
ALB
-
SEA
11h 24m2 stops
$344United Airlines
Sat, Jan 10 - Sat, Jan 17

American Airlines flights from Seattle to Massachusetts

Our best American Airlines deals on Seattle to Massachusetts flight tickets
American Airlines
Jan 24
SEA6:12 amSeattle/Tacoma Intl
7h 54m
1 stop
BOS5:06 pmBoston Logan Intl
Jan 31
BOS4:18 pmBoston Logan Intl
9h 02m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
$297
Find similar
American Airlines
Jan 17
SEA8:04 amSeattle/Tacoma Intl
11h 27m
1 stop
BOS10:31 pmBoston Logan Intl
Jan 24
BOS12:30 pmBoston Logan Intl
12h 50m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
$298
Find similar
American Airlines
Feb 7
SEA8:04 amSeattle/Tacoma Intl
11h 27m
1 stop
BOS10:31 pmBoston Logan Intl
Feb 9
BOS12:55 pmBoston Logan Intl
12h 25m
1 stop
SEA10:20 pmSeattle/Tacoma Intl
$303
Find similar

JetBlue flights from Seattle to Massachusetts

Our best JetBlue deals on Seattle to Massachusetts flight tickets
JetBlue
May 2
SEA11:30 amSeattle/Tacoma Intl
5h 35m
BOS8:05 pmBoston Logan Intl
May 8
BOS7:00 amBoston Logan Intl
6h 20m
SEA10:20 amSeattle/Tacoma Intl
$307
Find similar
JetBlue
May 4
SEA11:59 pmSeattle/Tacoma Intl
11h 21m
1 stop
BOS2:20 pmBoston Logan Intl
May 7
BOS7:00 amBoston Logan Intl
6h 20m
SEA10:20 amSeattle/Tacoma Intl
$317
Find similar
JetBlue
May 2
SEA11:30 amSeattle/Tacoma Intl
5h 35m
BOS8:05 pmBoston Logan Intl
May 6
BOS1:00 pmBoston Logan Intl
10h 53m
1 stop
SEA8:53 pmSeattle/Tacoma Intl
$322
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Massachusetts 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 December 18, 2025.
Use the filters below to find and compare flights from Seattle to Massachusetts that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 1/7

3:40 pm-11:54 pm

Nonstop5h 14m

Boston Logan Intl

Sun 1/11

6:44 pm-10:17 pm

Nonstop6h 33m

$292

SeattleHartford

SEA - BDL

SEABDL

Seattle/Tacoma Intl

Sat 1/10

12:40 pm-6:00 am

1 stop14h 20m

Hartford Bradley Intl

Mon 1/12

7:00 am-4:29 pm

2 stops12h 29m

$293

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 1/8

10:25 pm-6:50 am

Nonstop5h 25m

Boston Logan Intl

Tue 1/13

7:30 am-10:24 pm

1 stop17h 54m

$295

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 1/10

7:15 am-12:18 am

1 stop14h 03m

Boston Logan Intl

Mon 1/12

6:45 pm-10:13 pm

Nonstop6h 28m

$296

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 1/24

6:12 am-5:06 pm

1 stop7h 54m

Boston Logan Intl

Sat 1/31

4:18 pm-10:20 pm

1 stop9h 02m

$297

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sat 1/17

8:04 am-10:31 pm

1 stop11h 27m

Boston Logan Intl

Sat 1/24

12:30 pm-10:20 pm

1 stop12h 50m

$298

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 1/14

8:40 am-9:52 pm

2 stops10h 12m

Boston Logan Intl

Wed 1/21

6:00 am-11:32 am

1 stop8h 32m

$302

SeattleAlbany

SEA - ALB

SEAALB

Seattle/Tacoma Intl

Sat 1/10

5:15 am-3:35 pm

1 stop7h 20m

Albany Intl

Sat 1/17

1:10 pm-9:05 pm

1 stop10h 55m

$334

SeattleAlbany

SEA - ALB

SEAALB

Seattle/Tacoma Intl

Sat 1/10

7:00 am-9:55 pm

2 stops11h 55m

Albany Intl

Sat 1/17

1:10 pm-9:05 pm

1 stop10h 55m

$339

SeattleAlbany

SEA - ALB

SEAALB

Seattle/Tacoma Intl

Sat 1/10

5:00 am-9:22 pm

2 stops13h 22m

Albany Intl

Sat 1/17

9:50 am-6:14 pm

2 stops11h 24m

$344

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 Massachusetts from

How to get the cheapest flight ticket from Seattle to Massachusetts

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 Massachusetts?

In general, January is the cheapest month to fly from Seattle to Massachusetts. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $247. If you aren’t able to travel to Massachusetts during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $277.

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

According to our data, Wednesday is the cheapest day to fly to Massachusetts from Seattle. The lowest ticket price found for a Wednesday departure recently was $350. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $432.

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

Our data shows that the cheapest Seattle to Massachusetts flights are usually those with departure times at noon. Our users have found flights to Massachusetts at noon for as low as $254. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $421 on average. Flights to Massachusetts from Seattle in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

You are more likely to see cheaper flights to Massachusetts from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Massachusetts for around $358 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Massachusetts from Seattle for as low as $305 on momondo.

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

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Massachusetts 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 Seattle to Massachusetts flights?

You could potentially save up to 22% on your flight if you consider stops on a Seattle to Massachusetts flight.

Cheap Seattle to Massachusetts flight deals and tips

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

Best Price Found

$231

Fastest flight time

5h 14m

Direct flights

Every day

Airports in Massachusetts

140 airports
The best one-way flight to Massachusetts from Seattle in the past 72 hours is $231. The best round-trip flight deal from Seattle to Massachusetts found on momondo in the last 72 hours is $382.
The fastest flight from Seattle to Massachusetts takes 5h 14m
Direct flights go from Seattle to Massachusetts every day.
There are 140 airports in Massachusetts. From Seattle there are direct flights to Boston Logan Intl (BOS).
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Massachusetts.

  • What documentation or ID do you need to fly to Massachusetts?

    The necessary travel and health documents for your Massachusetts 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 Seattle to Massachusetts?

Best airlines flying from Seattle to Massachusetts

Compare and see reviews for airlines that fly from Seattle to Massachusetts with momondo
Airline
Rating
Free Cancellation
Price
Hawaiian AirlinesPriceFrom $118Free CancellationRating
7.8
2,819 reviews
Search Hawaiian Airlines flights
JetBluePriceFrom $143Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
DeltaPriceFrom $163Free CancellationRating
7.9
8,005 reviews
Search Delta flights
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
Sun Country AirPriceFrom $223Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $236Free CancellationRating
8.0
11,477 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $281Free CancellationRating
7.9
4,250 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Massachusetts. momondo saves you time and could save you money on your trip.

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

Flights from Seattle to Massachusetts with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to Massachusetts from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Massachusetts, momondo offers a useful price alert feature which will track prices for flights to Massachusetts from Seattle and alert you when they change.

An easier way to manage your Massachusetts trip

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