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$94+ Cheap flights from Massachusetts to Seattle (SEA)

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
abr. 5 — abr. 121
sáb. 4/5
sáb. 4/12
1 adult, Economy
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Cheap flight deals from Massachusetts to Seattle

Keep the following information in mind while searching for Massachusetts to Seattle flight deals. Data was last updated marzo 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$215
(SmartFares)

One-way from

$94
(Delta)

Popular in

July

Cheapest in

January

Average price

$297

Good round-trip deal

$299 or less

Good one-way deal

$175 or less
Provider with most accurate pricing for Boston Logan Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Seattle/Tacoma Intl flights.
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From Massachusetts to Seattle/Tacoma Intl
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One-way flight from Massachusetts to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 27% potential increase in price ($140 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Massachusetts to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Massachusetts to Seattle/Tacoma Intl.
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Find flight deals from Massachusetts to Seattle

Cheapest flights from Massachusetts to Seattle
Explore the most affordable flight options available from Massachusetts to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 31, 2025.

This SmartFares deal was found by Cheapflights users on 3/31. 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.
vie. 4/257:00 amBOS - SEA
Nonstop6h 13mAlaska Airlines
vie. 5/23:49 pmSEA - BOS
Nonstop5h 23mAlaska Airlines
Deal found 3/31$215
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/257:00 amBOS - SEA
Nonstop6h 13mHawaiian Airlines
vie. 5/23:49 pmSEA - BOS
Nonstop5h 23mHawaiian Airlines
Deal found 3/31$227
This Travelocity deal was found by Cheapflights users on 3/31. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/305:20 pmBOS - SEA
Nonstop6h 14mMultiple Airlines
mié. 5/76:00 amSEA - BOS
2 stops23h 41mMultiple Airlines
Deal found 3/31$235
This JetBlue deal was found by Cheapflights users on 3/30. 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.
sáb. 4/267:18 pmBOS - SEA
Nonstop6h 27mJetBlue
vie. 5/211:35 amSEA - BOS
Nonstop5h 33mJetBlue
Deal found 3/30$238
This Mytrip deal was found by Cheapflights users on 3/30. 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.
mar. 4/2912:29 pmBOS - SEA
2 stops26h 06mSpirit Airlines
jue. 5/18:56 pmSEA - BOS
2 stops20h 18mSpirit Airlines
Deal found 3/30$245
This American Airlines deal was found by Cheapflights users on 3/30. 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.
mar. 4/291:47 pmBOS - SEA
1 stop12h 22mAmerican Airlines
mar. 5/66:20 amSEA - BOS
1 stop10h 41mAmerican Airlines
Deal found 3/30$255
This Delta deal was found by Cheapflights users on 3/31. 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.
mié. 5/147:07 pmBOS - SEA
Nonstop6h 14mDelta
dom. 5/1810:11 pmSEA - BOS
Nonstop5h 29mDelta
Deal found 3/31$267
This United Airlines deal was found by Cheapflights users on 3/31. 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.
mar. 4/81:54 pmBOS - SEA
1 stop10h 21mUnited Airlines
jue. 4/2411:45 pmSEA - BOS
1 stop7h 53mUnited Airlines
Deal found 3/31$278
This Delta deal was found by Cheapflights users on 3/31. 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. 4/226:05 amALB - SEA
1 stop9h 21mDelta
mar. 4/2910:55 pmSEA - ALB
1 stop7h 07mDelta
Deal found 3/31$343
This Southwest deal was found by Cheapflights users on 3/31. 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.
vie. 9/56:30 pmBOS - SEA
1 stop8h 35mSouthwest
dom. 9/710:55 pmSEA - BOS
2 stops14h 30mSouthwest
Deal found 3/31$353
This Booking.com deal was found by Cheapflights users on 3/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/196:30 amBOS - SEA
1 stop14h 29mSun Country Air
vie. 4/256:20 pmSEA - BOS
1 stop13h 15mSun Country Air
Deal found 3/30$360
This American Airlines deal was found by Cheapflights users on 3/31. 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.
jue. 5/15:25 amALB - SEA
1 stop10h 36mAmerican Airlines
vie. 5/210:22 amSEA - ALB
1 stop9h 57mAmerican Airlines
Deal found 3/31$361

Cheapflights Fare Finder

Customize your flight search to find flights from Massachusetts to Seattle 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 marzo 31, 2025.
Use the filters below to find and compare flights from Massachusetts to Seattle that are best for you.

Fly from

Massachusetts

Fly to

Seattle

Route

Depart

Return

Price

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 4/25

7:00 am-10:13 am

Nonstop6h 13m

Seattle/Tacoma Intl

vie. 5/2

3:49 pm-12:12 am

Nonstop5h 23m

$215

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 4/25

7:00 am-10:13 am

Nonstop6h 13m

Seattle/Tacoma Intl

vie. 5/2

3:49 pm-12:12 am

Nonstop5h 23m

$227

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 4/30

5:20 pm-8:34 pm

Nonstop6h 14m

Seattle/Tacoma Intl

mié. 5/7

6:00 am-8:41 am

2 stops23h 41m

$235

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 4/26

7:18 pm-10:45 pm

Nonstop6h 27m

Seattle/Tacoma Intl

vie. 5/2

11:35 am-8:08 pm

Nonstop5h 33m

$238

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 4/29

12:29 pm-11:35 am

2 stops26h 06m

Seattle/Tacoma Intl

jue. 5/1

8:56 pm-8:14 pm

2 stops20h 18m

$245

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 4/29

1:47 pm-11:09 pm

1 stop12h 22m

Seattle/Tacoma Intl

mar. 5/6

6:20 am-8:01 pm

1 stop10h 41m

$255

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 5/14

7:07 pm-10:21 pm

Nonstop6h 14m

Seattle/Tacoma Intl

dom. 5/18

10:11 pm-6:40 am

Nonstop5h 29m

$267

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

lun. 6/2

7:00 pm-1:04 am

1 stop9h 04m

Seattle/Tacoma Intl

mar. 6/3

11:50 pm-11:16 am

1 stop8h 26m

$278

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

mar. 4/22

6:05 am-12:26 pm

1 stop9h 21m

Seattle/Tacoma Intl

mar. 4/29

10:55 pm-9:02 am

1 stop7h 07m

$343

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 9/5

6:30 pm-12:05 am

1 stop8h 35m

Seattle/Tacoma Intl

dom. 9/7

10:55 pm-4:25 pm

2 stops14h 30m

$353

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 50 results
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Best time to book a flight from Massachusetts to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Massachusetts 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 Massachusetts to Seattle

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

Currently, January is the cheapest month in which you can book a flight from Massachusetts to Seattle (average of $238). Flying from Massachusetts to Seattle in July is currently the most expensive (average of $411). 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 MA to SEA?

Find hourly flight availability from Massachusetts to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 31, 2025.

When flying from Massachusetts to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Massachusetts to Seattle

Explore weekly flight availability from Massachusetts to Seattle. 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 marzo 31, 2025.

The most flights from USMA to SEA are scheduled on a Sunday (35 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (15 on average).

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated marzo 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Massachusetts to Seattle to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,344 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Seattle. 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 into for flights to Seattle from Massachusetts?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Seattle from Massachusetts.

  • How popular is this Massachusetts to Seattle flight route?

    This flight path from Massachusetts to Seattle/Tacoma Intl was viewed by 51 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 Massachusetts to Seattle one-way?

    $94 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Spirit Airlines and Alaska Airlines, with prices starting from $99 and $117, respectively.

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

    The most popular route from Massachusetts to Seattle is Boston Logan Intl - Seattle/Tacoma Intl. You may also consider Hartford Bradley Intl - Seattle/Tacoma Intl or Albany Intl - Seattle/Tacoma Intl.

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

    The top 3 most reliable airlines when flying from Massachusetts to Seattle are Condor (95%), EL AL (88%) and American Airlines (86%).

  • What are the cheapest flights from Massachusetts to Seattle?

    While on average a flight from Massachusetts to Seattle is generally $1,023, our data shows the cheapest flight currently is $117. When looking at the most popular route, (Boston Logan Intl - Seattle/Tacoma Intl), you can expect to pay $230 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts to Seattle 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 Massachusetts to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Massachusetts to Seattle (average of $238). Flying from Massachusetts to Seattle in July is currently the most expensive (average of $411). 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.

See more FAQs

Traveling to a place near Massachusetts?

Book flights to Massachusetts if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

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Alternative routes for Massachusetts to Seattle

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Top 9 airlines flying from Massachusetts to Seattle

Discover the top 9 airlines that operate flights from Massachusetts to Seattle. 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 marzo 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$128Average$335FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$141Average$400FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$174Average$377FlexibilityNo cancel feeOn-time83%
DeltaCheapest$187Average$408FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$192Average$284FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$209Average$450FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$217Average$448FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$238Average$401FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$451FlexibilityNo cancel feeOn-time63%
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