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$109+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SEA
Dec 28 — Jan 41
Sat 12/28
Sat 1/4
1 adult, Economy
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Cheap flight deals from Massachusetts to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Massachusetts (USMA) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2024.

Round-trip from

$197
(JetBlue)

One-way from

$109
(American Airlines)
From Massachusetts to Seattle/Tacoma Intl
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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 December 23, 2024.

This Delta deal was found by Cheapflights users on 12/23. 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 12/257:40 amBOS - SEA
1 stop8h 25mDelta
Wed 1/87:30 amSEA - BOS
Nonstop5h 29mDelta
Deal found 12/23$367
This American Airlines deal was found by Cheapflights users on 12/23. 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 12/265:38 amBOS - SEA
1 stop10h 45mAmerican Airlines
Thu 1/21:35 pmSEA - BOS
1 stop7h 40mAmerican Airlines
Deal found 12/23$426
This Alaska Airlines deal was found by Cheapflights users on 12/23. 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 12/266:59 pmBOS - SEA
1 stop16h 19mAlaska Airlines
Thu 1/29:10 pmSEA - BOS
Nonstop5h 20mAlaska Airlines
Deal found 12/23$456
This JetBlue Airways deal was found by Cheapflights users on 12/23. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/259:16 amBOS - SEA
Nonstop6h 22mJetBlue
Wed 1/83:20 pmSEA - BOS
Nonstop5h 10mJetBlue
Deal found 12/23$457
This Southwest deal was found by Cheapflights users on 12/23. 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 12/258:00 amBOS - SEA
2 stops13h 40mSouthwest
Sat 12/281:50 pmSEA - BOS
1 stop8h 25mSouthwest
Deal found 12/23$511
This United Airlines deal was found by Cheapflights users on 12/23. 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.
Mon 12/306:00 amBOS - SEA
1 stop11h 15mUnited Airlines
Mon 1/67:15 amSEA - BOS
1 stop11h 57mUnited Airlines
Deal found 12/23$558
This Travelocity deal was found by Cheapflights users on 12/23. 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.
Mon 12/3011:46 amBOS - SEA
1 stop13h 57mMultiple Airlines
Mon 1/63:45 pmSEA - BOS
Nonstop5h 14mMultiple Airlines
Deal found 12/23$580
This FlightHub deal was found by Cheapflights users on 12/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:46 amBOS - SEA
1 stop8h 29mSun Country Air
Sat 1/46:34 pmSEA - BOS
1 stop13h 17mSun Country Air
Deal found 12/23$635
This Delta deal was found by Cheapflights users on 12/23. 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.
Mon 12/232:00 pmBDL - SEA
1 stop9h 50mDelta
Mon 1/612:00 pmSEA - BDL
1 stop8h 31mDelta
Deal found 12/23$776
This Mytrip deal was found by Cheapflights users on 12/22. 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.
Thu 12/269:46 pmBOS - SEA
2 stops27h 37mSpirit Airlines
Thu 1/26:11 amSEA - BOS
3 stops35h 48mSpirit Airlines
Deal found 12/22$848
This United deal was found by Cheapflights users on 12/23. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/233:25 pmBDL - SEA
1 stop8h 45mUnited Airlines
Mon 1/611:51 pmSEA - BDL
2 stops16h 03mUnited Airlines
Deal found 12/23$856
This American Airlines deal was found by Cheapflights users on 12/23. 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.
Sat 12/286:19 pmBDL - SEA
1 stop9h 38mAmerican Airlines
Sat 1/117:14 amSEA - BDL
2 stops11h 28mAmerican Airlines
Deal found 12/23$888

Find flights from Massachusetts to Seattle within your budget

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 December 23, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Mon 1/27

5:55 pm-9:34 pm

Nonstop6h 39m

Seattle/Tacoma Intl

Tue 2/4

7:55 am-4:24 pm

Nonstop5h 29m

$186

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 1/24

10:45 am-2:10 pm

Nonstop6h 25m

Seattle/Tacoma Intl

Wed 1/29

3:20 pm-11:30 pm

Nonstop5h 10m

$197

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 1/8

5:55 pm-9:34 pm

Nonstop6h 39m

Seattle/Tacoma Intl

Tue 1/14

9:45 am-9:28 am

2 stops20h 43m

$204

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Mon 1/27

10:30 am-7:00 pm

1 stop11h 30m

Seattle/Tacoma Intl

Tue 2/4

7:11 am-8:52 pm

1 stop10h 41m

$218

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Wed 1/8

10:03 pm-12:19 am

2 stops29h 16m

Seattle/Tacoma Intl

Tue 1/14

9:45 am-9:28 am

2 stops20h 43m

$220

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Fri 1/10

7:05 pm-10:25 pm

Nonstop6h 20m

Seattle/Tacoma Intl

Fri 1/17

7:30 am-3:59 pm

Nonstop5h 29m

$227

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 1/18

11:00 am-7:08 pm

1 stop11h 08m

Seattle/Tacoma Intl

Sat 1/25

5:00 am-5:23 pm

2 stops9h 23m

$241

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 1/7

2:05 pm-11:20 pm

2 stops12h 15m

Seattle/Tacoma Intl

Fri 1/10

10:40 am-9:40 pm

1 stop8h 00m

$288

HartfordSeattle

BDL - SEA

BDLSEA

Hartford Bradley Intl

Mon 1/13

5:14 pm-10:25 pm

1 stop8h 11m

Seattle/Tacoma Intl

Tue 1/21

1:30 pm-11:03 pm

1 stop6h 33m

$361

HartfordSeattle

BDL - SEA

BDLSEA

Hartford Bradley Intl

Thu 2/6

7:05 am-12:42 pm

1 stop8h 37m

Seattle/Tacoma Intl

Tue 2/11

10:18 pm-1:28 pm

2 stops12h 10m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 37 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.

Travel insights for flights from Massachusetts to Seattle

Get recent, data-driven insights about flights from Massachusetts to Seattle including ideal travel times, pricing trends, and more.

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 December 23, 2024.

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 December 23, 2024.

The most flights from USMA to SEA are scheduled on a Monday (26 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (10 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 December 23, 2024.
Peruse reviews from past customers who have flown with American Airlines, United Airlines and Spirit Airlines 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.
Southwest
8.1
Very good
4,780 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,780 reviews
Southwest
8.1
Very good
4,780 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,549 reviews
Southwest
8.1
Very good
4,780 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,588 reviews
Southwest
8.1
Very good
4,780 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,263 reviews
Southwest
8.1
Very good
4,780 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,020 reviews
Southwest
8.1
Very good
4,780 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 64 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?

    $109 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Alaska Airlines and JetBlue, with prices starting from $114 and $119, 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 Hainan Airlines (100%), EL AL (97%) and China Eastern (94%).

  • What are the cheapest flights from Massachusetts to Seattle?

    While on average a flight from Massachusetts to Seattle is generally $1,012, our data shows the cheapest flight currently is $100. When looking at the most popular route, (Boston Logan Intl - Seattle/Tacoma Intl), you can expect to pay $189 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.

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Top 8 airlines flying from Massachusetts to Seattle

Discover the top 8 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 December 23, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$133Average$392FlexibilityNo cancel feeOn-time62%
DeltaCheapest$168Average$407FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$176Average$373FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$186Average$423FlexibilityNo cancel feeOn-time75%
Spirit AirlinesCheapest$187Average$286FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$204Average$449FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$236Average$428FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$396Average$531FlexibilityNo cancel feeOn-time63%
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