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$124+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$197
(Delta)

One-way from

$124
(Alaska Airlines)

Popular in

August

Cheapest in

January

Average price

$458

Good round-trip deal

$264 or less

Good one-way deal

$172 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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Highest demand for flights based on searches. 17% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 9/2410:00 pmSEA - BOS
Nonstop5h 34mDelta
Sat 10/47:05 amBOS - SEA
Nonstop6h 40mDelta
Deal found 6/10$197
This KAYAK deal was found by Cheapflights users on 6/12. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/273:59 pmSEA - BOS
Nonstop5h 24mHawaiian Airlines
Tue 9/306:40 pmBOS - SEA
Nonstop6h 10mHawaiian Airlines
Deal found 6/12$198
This JetBlue deal was found by Cheapflights users on 6/10. 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.
Sat 9/2011:30 amSEA - BOS
Nonstop5h 33mJetBlue
Sat 9/277:00 amBOS - SEA
Nonstop6h 19mJetBlue
Deal found 6/10$207
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/510:43 pmSEA - BOS
1 stop8h 31mAmerican Airlines
Tue 8/1211:14 amBOS - SEA
1 stop11h 48mAmerican Airlines
Deal found 6/11$220
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 9/47:56 amSEA - BOS
1 stop19h 04mAlaska Airlines
Tue 9/95:37 pmBOS - SEA
1 stop7h 52mAlaska Airlines
Deal found 6/10$236
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 8/1911:30 pmSEA - ACK
2 stops10h 41mAmerican Airlines
Tue 8/261:41 pmACK - SEA
2 stops12h 59mAmerican Airlines
Deal found 6/12$251
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 11/31:24 amSEA - BDL
1 stop11h 54mAmerican Airlines
Tue 11/1112:38 pmBDL - SEA
1 stop13h 37mAmerican Airlines
Deal found 6/12$255
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/87:00 pmSEA - BOS
1 stop8h 01mUnited Airlines
Tue 7/155:30 amBOS - SEA
1 stop9h 20mUnited Airlines
Deal found 6/10$270
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/23:58 pmSEA - BOS
2 stops20h 39mSpirit Airlines
Tue 7/84:44 pmBOS - SEA
2 stops26h 41mSpirit Airlines
Deal found 6/10$280
This Southwest deal was found by Cheapflights users on 6/10. 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.
Wed 8/610:45 pmSEA - BOS
2 stops12h 05mSouthwest
Tue 8/1911:25 amBOS - SEA
1 stop13h 10mSouthwest
Deal found 6/10$308
This Priceline deal was found by Cheapflights users on 6/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1011:59 pmSEA - BDL
1 stop7h 42mMultiple Airlines
Thu 7/176:20 amBDL - SEA
2 stops13h 05mMultiple Airlines
Deal found 6/12$319
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/1411:30 pmSEA - MVY
2 stops11h 03mAmerican Airlines
Fri 8/222:03 pmMVY - SEA
2 stops12h 37mAmerican Airlines
Deal found 6/11$321

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 June 12, 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

Wed 9/3

3:59 pm-12:23 am

Nonstop5h 24m

Boston Logan Intl

Sat 9/6

6:40 pm-9:50 pm

Nonstop6h 10m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 8/5

10:43 pm-10:14 am

1 stop8h 31m

Boston Logan Intl

Tue 8/12

11:14 am-8:02 pm

1 stop11h 48m

$220

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 9/4

7:56 am-6:00 am

1 stop19h 04m

Boston Logan Intl

Tue 9/9

5:37 pm-10:29 pm

1 stop7h 52m

$236

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 7/14

10:17 pm-6:40 am

Nonstop5h 23m

Boston Logan Intl

Tue 7/22

6:50 pm-10:16 pm

Nonstop6h 26m

$237

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 8/29

9:50 pm-6:12 am

Nonstop5h 22m

Boston Logan Intl

Wed 9/3

7:00 am-10:19 am

Nonstop6h 19m

$238

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Tue 8/19

11:30 pm-1:11 pm

2 stops10h 41m

Nantucket Memorial

Tue 8/26

1:41 pm-11:40 pm

2 stops12h 59m

$251

SeattleHartford

SEA - BDL

SEABDL

Seattle/Tacoma Intl

Mon 11/3

1:24 am-4:18 pm

1 stop11h 54m

Hartford Bradley Intl

Tue 11/11

12:38 pm-11:15 pm

1 stop13h 37m

$255

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 7/8

7:00 pm-6:01 am

1 stop8h 01m

Boston Logan Intl

Tue 7/15

5:30 am-11:50 am

1 stop9h 20m

$270

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 7/2

3:58 pm-3:37 pm

2 stops20h 39m

Boston Logan Intl

Tue 7/8

4:44 pm-4:25 pm

2 stops26h 41m

$280

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 8/6

10:45 pm-1:50 pm

2 stops12h 05m

Boston Logan Intl

Tue 8/19

11:25 am-9:35 pm

1 stop13h 10m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June is currently the most expensive (average of $306). 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 June 12, 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 June 12, 2025.

The most flights from SEA to USMA are scheduled on a Thursday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

Rainfall in Massachusetts by month

Plan your trip to Massachusetts by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Massachusetts ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Massachusetts when rainfall is around 3.1 in.

Temperature in Massachusetts by month

Plan your trip to Massachusetts by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Massachusetts, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
To help decide which airline to fly from Seattle to Massachusetts, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

David,Aug 2024

SFO - BOS

Could not watch a movie, asked for help. Could not get extra cookies

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 $124 on Alaska Airlines. Other airlines that offer cheap prices include Spirit Airlines from $126 and Hawaiian Airlines from $128 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 EL AL (97%), Air France (97%) or Scandinavian Airlines (97%) 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 $1,035, our data shows the cheapest flight currently is $118. 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 June is currently the most expensive (average of $306). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$373FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$141Average$530FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$145Average$277FlexibilityNo cancel feeOn-time65%
DeltaCheapest$164Average$386FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$179Average$379FlexibilityNo cancel feeOn-time83%
American AirlinesCheapest$226Average$431FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$235Average$472FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$236Average$387FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$356Average$466FlexibilityNo cancel feeOn-time63%

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