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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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
May 20 — May 271
Tue 5/20
Tue 5/27
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 May 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$178
(SmartFares)

One-way from

$124
(Mytrip)

Popular in

July

Cheapest in

January

Average price

$369

Good round-trip deal

$283 or less

Good one-way deal

$155 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Boston Logan Intl flights.
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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. 25% potential increase in price ($125 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 15, 2025.

This SmartFares deal was found by Cheapflights users on 5/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/293:40 pmSEA - BOS
Nonstop5h 26mHawaiian Airlines
Wed 6/47:30 amBOS - SEA
Nonstop6h 10mHawaiian Airlines
Deal found 5/15$178
This Delta deal was found by Cheapflights users on 5/14. 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.
Wed 6/43:37 pmSEA - BOS
Nonstop5h 22mDelta
Wed 6/116:55 pmBOS - SEA
Nonstop6h 26mDelta
Deal found 5/14$197
This JetBlue deal was found by Cheapflights users on 5/14. 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.
Thu 5/2911:38 amSEA - BOS
Nonstop5h 32mJetBlue
Wed 6/47:00 amBOS - SEA
Nonstop6h 18mJetBlue
Deal found 5/14$198
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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 5/298:00 amSEA - BOS
1 stop19h 10mAlaska Airlines
Wed 6/47:30 amBOS - SEA
Nonstop6h 10mAlaska Airlines
Deal found 5/15$207
This American Airlines deal was found by Cheapflights users on 5/15. 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.
Wed 6/46:20 amSEA - BOS
1 stop9h 23mAmerican Airlines
Thu 6/55:35 pmBOS - SEA
1 stop9h 42mAmerican Airlines
Deal found 5/15$218
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/36:00 amSEA - BOS
2 stops31h 24mSpirit Airlines
Tue 6/1010:04 amBOS - SEA
2 stops17h 06mSpirit Airlines
Deal found 5/14$222
This United Airlines deal was found by Cheapflights users on 5/15. 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.
Fri 5/3011:13 amSEA - BOS
1 stop7h 47mUnited Airlines
Tue 6/36:00 amBOS - SEA
1 stop8h 32mUnited Airlines
Deal found 5/15$232
This Orbitz deal was found by Cheapflights users on 5/14. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/103:40 pmSEA - BOS
Nonstop5h 26mMultiple Airlines
Thu 6/129:40 pmBOS - SEA
2 stops20h 23mMultiple Airlines
Deal found 5/14$293
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Fri 8/2912:34 amSEA - ALB
1 stop7h 34mAmerican Airlines
Tue 9/24:08 pmALB - SEA
1 stop9h 01mAmerican Airlines
Deal found 5/14$325
This JetBlue deal was found by Cheapflights users on 5/14. 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.
Sat 7/1211:25 pmSEA - ACK
1 stop9h 28mJetBlue
Wed 7/163:10 pmACK - SEA
1 stop10h 00mJetBlue
Deal found 5/14$340
This Delta deal was found by Cheapflights users on 5/14. 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.
Tue 8/2611:05 pmSEA - ALB
1 stop6h 56mDelta
Wed 8/275:00 pmALB - SEA
1 stop8h 25mDelta
Deal found 5/14$343
This United Airlines deal was found by Cheapflights users on 5/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/287:00 amSEA - ALB
1 stop7h 53mUnited Airlines
Sat 5/319:35 amALB - SEA
1 stop9h 14mUnited Airlines
Deal found 5/14$347

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 May 15, 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

Thu 5/29

3:40 pm-12:06 am

Nonstop5h 26m

Boston Logan Intl

Wed 6/4

7:30 am-10:40 am

Nonstop6h 10m

$178

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 6/4

3:37 pm-11:59 pm

Nonstop5h 22m

Boston Logan Intl

Wed 6/11

6:55 pm-10:21 pm

Nonstop6h 26m

$197

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 5/29

11:38 am-8:10 pm

Nonstop5h 32m

Boston Logan Intl

Wed 6/4

7:00 am-10:18 am

Nonstop6h 18m

$198

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 5/29

10:00 am-6:10 am

1 stop17h 10m

Boston Logan Intl

Wed 6/4

7:30 am-10:40 am

Nonstop6h 10m

$207

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 6/4

6:20 am-6:43 pm

1 stop9h 23m

Boston Logan Intl

Thu 6/5

5:35 pm-12:17 am

1 stop9h 42m

$218

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 6/3

6:00 am-4:24 pm

2 stops31h 24m

Boston Logan Intl

Tue 6/10

10:04 am-12:10 am

2 stops17h 06m

$222

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 5/30

11:13 am-10:00 pm

1 stop7h 47m

Boston Logan Intl

Tue 6/3

6:00 am-11:32 am

1 stop8h 32m

$232

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 6/10

3:40 pm-12:06 am

Nonstop5h 26m

Boston Logan Intl

Thu 6/12

9:40 pm-3:03 pm

2 stops20h 23m

$293

SeattleAlbany

SEA - ALB

SEAALB

Seattle/Tacoma Intl

Fri 8/29

12:34 am-11:08 am

1 stop7h 34m

Albany Intl

Tue 9/2

4:08 pm-10:09 pm

1 stop9h 01m

$325

SeattleNantucket

SEA - ACK

SEAACK

Seattle/Tacoma Intl

Sat 7/12

11:25 pm-11:53 am

1 stop9h 28m

Nantucket Memorial

Wed 7/16

3:10 pm-10:10 pm

1 stop10h 00m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

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 $308). 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 May 15, 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 May 15, 2025.

The most flights from SEA to USMA are scheduled on a Thursday (36 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (24 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 May 15, 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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
4,291 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
2,435 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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
8,731 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

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 14 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 Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $128 and Alaska 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 KLM (100%), British Airways (100%) or Air France (95%) 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 $969, our data shows the cheapest flight currently is $123. When looking at the most popular route, (Seattle/Tacoma Intl - Boston Logan Intl), you can expect to pay $188 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 $308). 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 May 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$381FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$142Average$555FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$145Average$256FlexibilityNo cancel feeOn-time65%
DeltaCheapest$174Average$396FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$179Average$395FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$234Average$486FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$235Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$413FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$356Average$466FlexibilityNo cancel feeOn-time63%

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