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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 10/27. 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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Cheap round-trip flights

JetBlue Logo
1:10 pm - 9:46 pmSEA-BOS
5h 36mnonstop
JetBlue Logo
8:20 am - 11:59 amBOS-SEA
6h 39mnonstop
$177JetBlue
Find Deal
sáb., oct. 18 - mié., oct. 22
JetBlue Logo
1:10 pm - 9:46 pmSEA-BOS
5h 36mnonstop
JetBlue Logo
8:20 am - 11:59 amBOS-SEA
6h 39mnonstop
$181JetBlue
Find Deal
vie., oct. 17 - jue., oct. 23
American Airlines Logo
6:10 am - 4:49 pmSEA-BOS
7h 39m1 stop
American Airlines Logo
6:00 am - 11:03 amBOS-SEA
8h 03m1 stop
$198American Airlines
Find Deal
sáb., oct. 18 - sáb., oct. 25
Hawaiian Airlines Logo
3:59 pm - 12:20 amSEA-BOS
5h 21mnonstop
Hawaiian Airlines Logo
9:00 am - 12:35 pmBOS-SEA
6h 35mnonstop
$199Hawaiian Airlines
Find Deal
mar., oct. 28 - mié., nov. 5
Alaska Airlines Logo
8:25 pm - 3:41 pmSEA-BOS
16h 16m1 stop
Alaska Airlines Logo
9:00 am - 12:35 pmBOS-SEA
6h 35mnonstop
$247Alaska Airlines
Find Deal
mar., oct. 28 - vie., nov. 7
American Airlines Logo
11:05 pm - 10:10 amSEA-BOS
8h 05m1 stop
American Airlines Logo
12:33 pm - 8:09 pmBOS-SEA
10h 36m1 stop
$254American Airlines
Find Deal
mié., sep. 10 - mié., sep. 17
Alaska Airlines Logo
9:40 pm - 3:00 pmSEA-BOS
14h 20m1 stop
Alaska Airlines Logo
8:23 pm - 8:07 amBOS-SEA
14h 44m1 stop
$256Alaska Airlines
Find Deal
vie., sep. 19 - mar., sep. 23
Hawaiian Airlines Logo
11:10 pm - 7:29 amSEA-BOS
5h 19mnonstop
Hawaiian Airlines Logo
9:00 am - 12:35 pmBOS-SEA
6h 35mnonstop
$267Hawaiian Airlines
Find Deal
dom., oct. 26 - mar., oct. 28
Delta Logo
10:05 pm - 6:35 amSEA-BOS
5h 30mnonstop
Delta Logo
6:45 pm - 10:01 pmBOS-SEA
6h 16mnonstop
$272Delta
Find Deal
mar., sep. 23 - mié., oct. 1
Delta Logo
7:15 am - 6:01 pmSEA-ALB
7h 46m1 stop
Delta Logo
6:00 am - 10:41 amALB-SEA
7h 41m1 stop
$327Delta
Find Deal
mié., nov. 12 - jue., nov. 20

Alaska Airlines flights from Seattle to Massachusetts

Our best Alaska Airlines deals on Seattle to Massachusetts flight tickets
Alaska Airlines
Oct 28
SEA8:25 pmSeattle/Tacoma Intl
16h 16m
1 stop
BOS3:41 pmBoston Logan Intl
Nov 7
BOS9:00 amBoston Logan Intl
6h 35m
SEA12:35 pmSeattle/Tacoma Intl
$247
Find similar
Alaska Airlines
Sep 19
SEA9:40 pmSeattle/Tacoma Intl
14h 20m
1 stop
BOS3:00 pmBoston Logan Intl
Sep 23
BOS8:23 pmBoston Logan Intl
14h 44m
1 stop
SEA8:07 amSeattle/Tacoma Intl
$256
Find similar
Alaska Airlines
Sep 26
SEA8:08 pmSeattle/Tacoma Intl
15h 52m
1 stop
BOS3:00 pmBoston Logan Intl
Oct 1
BOS7:20 amBoston Logan Intl
6h 13m
SEA10:33 amSeattle/Tacoma Intl
$274
Find similar

JetBlue flights from Seattle to Massachusetts

Our best JetBlue deals on Seattle to Massachusetts flight tickets
JetBlue
Oct 18
SEA1:10 pmSeattle/Tacoma Intl
5h 36m
BOS9:46 pmBoston Logan Intl
Oct 22
BOS8:20 amBoston Logan Intl
6h 39m
SEA11:59 amSeattle/Tacoma Intl
$177
Find similar
JetBlue
Oct 17
SEA1:10 pmSeattle/Tacoma Intl
5h 36m
BOS9:46 pmBoston Logan Intl
Oct 23
BOS8:20 amBoston Logan Intl
6h 39m
SEA11:59 amSeattle/Tacoma Intl
$181
Find similar
JetBlue
Oct 15
SEA1:10 pmSeattle/Tacoma Intl
5h 36m
BOS9:46 pmBoston Logan Intl
Oct 23
BOS8:20 amBoston Logan Intl
6h 39m
SEA11:59 amSeattle/Tacoma Intl
$197
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 agosto 27, 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

sáb. 10/18

1:10 pm-9:46 pm

Nonstop5h 36m

Boston Logan Intl

mié. 10/22

8:20 am-11:59 am

Nonstop6h 39m

$177

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

vie. 10/17

1:10 pm-9:46 pm

Nonstop5h 36m

Boston Logan Intl

jue. 10/23

8:20 am-11:59 am

Nonstop6h 39m

$181

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 10/18

6:10 am-4:49 pm

1 stop7h 39m

Boston Logan Intl

sáb. 10/25

6:00 am-11:03 am

1 stop8h 03m

$198

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 10/28

3:59 pm-12:20 am

Nonstop5h 21m

Boston Logan Intl

mié. 11/5

9:00 am-12:35 pm

Nonstop6h 35m

$199

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 10/28

8:25 pm-3:41 pm

1 stop16h 16m

Boston Logan Intl

vie. 11/7

9:00 am-12:35 pm

Nonstop6h 35m

$247

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mié. 9/10

11:05 pm-10:10 am

1 stop8h 05m

Boston Logan Intl

mié. 9/17

12:33 pm-8:09 pm

1 stop10h 36m

$254

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

vie. 9/19

9:40 pm-3:00 pm

1 stop14h 20m

Boston Logan Intl

mar. 9/23

8:23 pm-8:07 am

1 stop14h 44m

$256

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

dom. 10/26

11:10 pm-7:29 am

Nonstop5h 19m

Boston Logan Intl

mar. 10/28

9:00 am-12:35 pm

Nonstop6h 35m

$267

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 9/23

10:05 pm-6:35 am

Nonstop5h 30m

Boston Logan Intl

mié. 10/1

6:45 pm-10:01 pm

Nonstop6h 16m

$272

SeattleAlbany

SEA - ALB

SEAALB

Seattle/Tacoma Intl

mié. 11/12

7:15 am-6:01 pm

1 stop7h 46m

Albany Intl

jue. 11/20

6:00 am-10:41 am

1 stop7h 41m

$327

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 $217. 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 $267.

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 $340. 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 $418.

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 in the afternoon. Our users have found flights to Massachusetts in the afternoon for as low as $329. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $403 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 $348 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 $302 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?

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

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

$222

Fastest flight time

5h 15m

Direct flights

Every day

Airports in Massachusetts

1 airport
The best one-way flight to Massachusetts from Seattle in the past 72 hours is $222. The best round-trip flight deal from Seattle to Massachusetts found on momondo in the last 72 hours is $249.
The fastest flight from Seattle to Massachusetts takes 5h 15m
Direct flights go from Seattle to Massachusetts every day.
There is 1 airport near Massachusetts: 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 $120Free CancellationRating
7.8
2,683 reviews
Search Hawaiian Airlines flights
JetBluePriceFrom $131Free CancellationRating
7.2
2,919 reviews
Search JetBlue flights
DeltaPriceFrom $153Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $216Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Sun Country AirPriceFrom $223Free CancellationRating
6.9
332 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $227Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
8,945 reviews
Search United Airlines flights
SouthwestPriceFrom $236Free CancellationRating
8.0
4,241 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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