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$139+ Cheap flights from Seattle (SEA) to Massachusetts

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap flight deals from Seattle to Massachusetts

Keep the following information in mind while searching for Seattle to Massachusetts flight deals. Data was last updated agosto 14, 2025.

Round-trip from

$197
(JetBlue)

One-way from

$139
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$437

Good round-trip deal

$260 or less

Good one-way deal

$212 or less
From Seattle/Tacoma Intl to Massachusetts
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One-way flight from Seattle/Tacoma Intl to Massachusetts
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Massachusetts.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Massachusetts.
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Find flight deals from Seattle to Massachusetts

Cheapest flights from Seattle to Massachusetts
Explore the most affordable flight options available from Seattle to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This JetBlue deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/2411:30 amSEA - BOS
Nonstop5h 53mJetBlue
sáb. 10/47:00 amBOS - SEA
Nonstop6h 19mJetBlue
Deal found 8/13$197
This lastminute.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2211:30 amSEA - BOS
Nonstop5h 53mJetBlue
lun. 9/297:00 amBOS - SEA
Nonstop6h 19mJetBlue
Deal found 8/12$203
This Bravofly deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/411:30 amSEA - BOS
Nonstop5h 53mJetBlue
dom. 10/128:20 amBOS - SEA
Nonstop6h 39mJetBlue
Deal found 8/14$211
This JetBlue deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/151:10 pmSEA - BOS
Nonstop5h 36mJetBlue
mié. 10/228:20 amBOS - SEA
Nonstop6h 39mJetBlue
Deal found 8/13$217
This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/111:05 pmSEA - BOS
1 stop8h 05mAmerican Airlines
mié. 10/82:18 pmBOS - SEA
1 stop8h 52mAmerican Airlines
Deal found 8/14$219
This Southwest deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/139:15 amSEA - BOS
1 stop11h 20mSouthwest
mar. 9/165:40 amBOS - SEA
1 stop8h 35mSouthwest
Deal found 8/14$222
This lastminute.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/1511:30 amSEA - BOS
Nonstop5h 53mJetBlue
lun. 9/227:00 amBOS - SEA
Nonstop6h 19mJetBlue
Deal found 8/13$224
This Alaska Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/273:59 pmSEA - BOS
Nonstop5h 21mAlaska Airlines
sáb. 11/16:59 pmBOS - SEA
1 stop19h 24mAlaska Airlines
Deal found 8/14$227
This JetBlue deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/2611:30 amSEA - BOS
Nonstop5h 53mJetBlue
sáb. 9/277:00 amBOS - SEA
Nonstop6h 19mJetBlue
Deal found 8/14$237
This JetBlue deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/311:30 amSEA - BOS
Nonstop5h 53mJetBlue
dom. 10/128:20 amBOS - SEA
Nonstop6h 39mJetBlue
Deal found 8/14$239
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/411:43 amSEA - BDL
1 stop8h 31mDelta
mar. 11/115:48 amBDL - SEA
1 stop7h 57mDelta
Deal found 8/14$277
This American Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/311:38 pmSEA - ALB
1 stop9h 16mAmerican Airlines
mié. 9/244:28 pmALB - SEA
1 stop9h 01mAmerican Airlines
Deal found 8/12$277

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Seattle to Massachusetts that are best for you.

Fly from

Seattle

Fly to

Massachusetts

Route

Depart

Return

Price

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mié. 10/29

3:59 pm-12:20 am

Nonstop5h 21m

Boston Logan Intl

mar. 11/4

7:00 am-10:35 am

Nonstop6h 35m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 9/30

11:30 am-8:23 pm

Nonstop5h 53m

Boston Logan Intl

jue. 10/2

7:00 am-10:19 am

Nonstop6h 19m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 10/18

3:35 pm-11:59 pm

Nonstop5h 24m

Boston Logan Intl

jue. 10/23

4:30 pm-7:50 pm

Nonstop6h 20m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 10/18

1:10 pm-9:46 pm

Nonstop5h 36m

Boston Logan Intl

jue. 10/23

8:20 am-11:59 am

Nonstop6h 39m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 10/28

3:59 pm-12:20 am

Nonstop5h 21m

Boston Logan Intl

mié. 10/29

7:00 am-10:35 am

Nonstop6h 35m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 9/30

11:30 am-8:23 pm

Nonstop5h 53m

Boston Logan Intl

mié. 10/1

7:00 am-10:19 am

Nonstop6h 19m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

sáb. 10/25

3:35 pm-11:59 pm

Nonstop5h 24m

Boston Logan Intl

mar. 11/4

7:00 am-10:35 am

Nonstop6h 35m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mié. 9/24

11:30 am-8:23 pm

Nonstop5h 53m

Boston Logan Intl

sáb. 10/4

7:00 am-10:19 am

Nonstop6h 19m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mié. 10/29

3:59 pm-12:20 am

Nonstop5h 21m

Boston Logan Intl

jue. 10/30

6:23 pm-9:51 pm

Nonstop6h 28m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

mar. 10/28

3:59 pm-12:20 am

Nonstop5h 21m

Boston Logan Intl

jue. 10/30

6:23 pm-9:51 pm

Nonstop6h 28m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to Massachusetts

Have a flexible travel schedule? Discover the best time to fly to Massachusetts from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Massachusetts

What is the cheapest month to book a flight from Seattle to Massachusetts?

Currently, January is the cheapest month in which you can book a flight from Seattle to Massachusetts (average of $218). Flying from Seattle to Massachusetts in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to MA?

Find hourly flight availability from Seattle to Massachusetts. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Massachusetts as you normally would.

Weekly flight availability from Seattle to Massachusetts

Explore weekly flight availability from Seattle to Massachusetts. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated agosto 14, 2025.

The most flights from SEA to USMA are scheduled on a Thursday (39 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 on average).

Reviews of airlines servicing Massachusetts

Get insights into the airlines that provide service to Massachusetts. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Massachusetts. Reviews last updated agosto 14, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Massachusetts by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,656 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
JetBlue
7.2
Good
2,913 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Massachusetts. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Massachusetts?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Massachusetts. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How popular is this Seattle to Massachusetts flight route?

    The Seattle/Tacoma Intl to Massachusetts flight path was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Seattle to Massachusetts one-way?

    One-way options have recently been found by users for as low as $139 on American Airlines. Other airlines that offer cheap prices include Southwest from $139 and United Airlines from $144 one-way.

  • What are the most popular routes from Seattle to Massachusetts?

    Most travelers choose Seattle/Tacoma Intl - Boston Logan Intl, Seattle/Tacoma Intl - Hartford Bradley Intl or Seattle/Tacoma Intl - Albany Intl when deciding on the best route from Seattle to Massachusetts.

  • What are the most reliable airlines from Seattle to Massachusetts?

    No one likes to see their flight delayed. When booking a flight from Seattle to Massachusetts consider choosing Scandinavian Airlines (100%), Air France (93%) or Virgin Atlantic (85%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Massachusetts?

    While on average a flight from Seattle to Massachusetts is generally $961, our data shows the cheapest flight currently is $121. When looking at the most popular route, (Seattle/Tacoma Intl - Boston Logan Intl), you can expect to pay $197 for that flight.

  • Can I find deals for flights from Seattle to Massachusetts that include hotel bookings?

    Yes. In addition to deals on Seattle to Massachusetts flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Massachusetts?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Massachusetts.

  • Can I find deals for business class flights from Seattle to Massachusetts?

    Yes. Cheapflights offers flight deals from Seattle to Massachusetts by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Massachusetts?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Massachusetts (average of $218). Flying from Seattle to Massachusetts in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Seattle to Massachusetts

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Seattle to Massachusetts

Discover the top 9 airlines that operate flights from Seattle to Massachusetts. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$120Average$365FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$132Average$328FlexibilityNo cancel feeOn-time62%
DeltaCheapest$154Average$376FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$175Average$301FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$216Average$395FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$223Average$370FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$228Average$451FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$271Average$371FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$281Average$356FlexibilityNo cancel feeOn-time63%

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