HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Massachusetts

$154+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BOS
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Massachusetts with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 20, 2026.

This American Airlines deal was found by Cheapflights users on 5/20. 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 8/45:10 am
SEA
-
BOS
1 stop9h 54m
American Airlines
Tue 8/116:10 am
BOS
-
SEA
1 stop11h 22m
American Airlines
Deal found 5/20$297
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:55 pm
SEA
-
BOS
Nonstop5h 24m
JetBlue
Tue 9/226:59 pm
BOS
-
SEA
Nonstop6h 39m
JetBlue
Deal found 5/20$302
This Delta deal was found by Cheapflights users on 5/20. 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 7/811:15 pm
SEA
-
BOS
Nonstop5h 20m
Delta
Tue 7/147:45 am
BOS
-
SEA
Nonstop6h 23m
Delta
Deal found 5/20$307
This American Airlines deal was found by Cheapflights users on 5/20. 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 6/510:35 pm
SEA
-
BOS
1 stop8h 26m
American Airlines
Sat 6/135:05 pm
BOS
-
SEA
1 stop8h 53m
American Airlines
Deal found 5/20$317
This Cheapflightsfares deal was found by Cheapflights users on 5/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:35 am
SEA
-
BOS
Nonstop5h 39m
JetBlue
Mon 6/87:00 am
BOS
-
SEA
Nonstop6h 15m
JetBlue
Deal found 5/20$320
This American Airlines deal was found by Cheapflights users on 5/19. 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 6/210:27 am
SEA
-
BOS
1 stop10h 30m
American Airlines
Tue 6/95:05 pm
BOS
-
SEA
1 stop8h 53m
American Airlines
Deal found 5/19$322
This Vliegwinkel deal was found by Cheapflights users on 5/16. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:35 am
SEA
-
BOS
Nonstop5h 39m
JetBlue
Mon 6/87:00 am
BOS
-
SEA
Nonstop6h 15m
JetBlue
Deal found 5/16$324
This American Airlines deal was found by Cheapflights users on 5/18. 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 6/85:15 am
SEA
-
BOS
1 stop9h 50m
American Airlines
Fri 6/125:57 pm
BOS
-
SEA
1 stop10h 02m
American Airlines
Deal found 5/18$327
This Southwest deal was found by Cheapflights users on 5/20. 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 8/1211:05 pm
SEA
-
BOS
1 stop9h 35m
Southwest
Wed 8/262:45 pm
BOS
-
SEA
2 stops11h 20m
Southwest
Deal found 5/20$332
This Expedia deal was found by Cheapflights users on 5/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:02 pm
SEA
-
BOS
1 stop11h 42m
Multiple Airlines
Fri 6/57:00 am
BOS
-
SEA
Nonstop6h 15m
Multiple Airlines
Deal found 5/19$335
This JetBlue deal was found by Cheapflights users on 5/18. 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.
Mon 6/111:35 am
SEA
-
BOS
Nonstop5h 39m
JetBlue
Sun 6/77:00 am
BOS
-
SEA
Nonstop6h 15m
JetBlue
Deal found 5/18$336
This American Airlines deal was found by Cheapflights users on 5/19. 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 8/185:10 am
SEA
-
ALB
1 stop7h 44m
American Airlines
Tue 8/257:00 am
ALB
-
SEA
1 stop10h 57m
American Airlines
Deal found 5/19$395

Find 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 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$297
(American Airlines)

One-way from

$154
(Delta)

Popular in

December

Cheapest in

September

Average price

$387

Good round-trip deal

$360 or less

Good one-way deal

$209 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Boston Logan Intl flights.
Search Deals
From Seattle/Tacoma Intl to Massachusetts
Search Deals
One-way flight from Seattle/Tacoma Intl to Massachusetts
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Massachusetts.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Massachusetts.
Search Deals

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 20, 2026.
Use the filters below to find and compare flights from Seattle to Massachusetts that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 8/25

11:05 pm-12:15 pm

1 stop10h 10m

Boston Logan Intl

Sun 8/30

5:30 am-1:15 pm

1 stop10h 45m

$362
Quickest round-trip

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Mon 9/14

3:55 pm-12:23 am

Nonstop5h 28m

Boston Logan Intl

Fri 9/18

7:05 am-10:32 am

Nonstop6h 27m

$377

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Tue 6/16

10:45 pm-12:10 pm

2 stops10h 25m

Boston Logan Intl

Tue 7/7

5:30 pm-12:20 am

1 stop9h 50m

$377

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 10/28

10:00 pm-6:33 am

Nonstop5h 33m

Boston Logan Intl

Mon 11/2

7:05 am-10:43 am

Nonstop6h 38m

$387

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 7/8

7:30 pm-8:10 am

2 stops9h 40m

Boston Logan Intl

Wed 7/15

11:35 am-8:25 pm

2 stops11h 50m

$392

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 7/10

10:45 pm-11:55 am

2 stops10h 10m

Boston Logan Intl

Wed 7/15

3:45 pm-12:20 am

1 stop11h 35m

$393

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Sun 9/13

10:30 pm-9:50 am

1 stop8h 20m

Boston Logan Intl

Sun 9/20

5:20 am-1:40 pm

1 stop11h 20m

$397

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Wed 9/9

11:00 pm-9:33 am

1 stop7h 33m

Boston Logan Intl

Wed 9/16

7:20 am-9:15 pm

2 stops16h 55m

$408

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Fri 8/14

5:50 pm-6:00 am

1 stop9h 10m

Boston Logan Intl

Sun 8/30

5:30 am-1:40 pm

2 stops11h 10m

$412

SeattleBoston

SEA - BOS

SEABOS

Seattle/Tacoma Intl

Thu 8/20

6:00 am-2:28 pm

Nonstop5h 28m

Boston Logan Intl

Tue 8/25

8:00 am-10:25 am

1 stop29h 25m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, March is the cheapest month in which you can book a flight from Seattle to Massachusetts (average of $98). Flying from Seattle to Massachusetts in December is currently the most expensive (average of $1,006). 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 20, 2026.

A simple way to save on the total cost of your ticket is to fly from Seattle to Massachusetts at noon. If you’re flexible enough to do this you can expect to save up to 47% on your trip compared to booking a flight in the morning.

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 20, 2026.

The most flights from SEA to USMA are scheduled on a Monday (26 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from Seattle to Massachusetts?

How far ahead should I book a flight from Seattle to Massachusetts?

The price you pay for your flight from Seattle to Massachusetts may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest day to fly from Seattle to Massachusetts?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Massachusetts. Price data was last updated on May 16, 2026.

Travelers seeking maximum savings on their Seattle to Massachusetts flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 20, 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andHawaiian 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
7.9
Good
12,384 reviews

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,384 reviews
Alaska Airlines
7.9
Good
12,384 reviews

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,451 reviews
Alaska Airlines
7.9
Good
12,384 reviews

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Hawaiian Airlines
7.8
Good
2,836 reviews
Alaska Airlines
7.9
Good
12,384 reviews

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
JetBlue
7.2
Good
2,982 reviews
Alaska Airlines
7.9
Good
12,384 reviews

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,642 reviews
Alaska Airlines
7.9
Good
12,384 reviews

Food

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Massachusetts?

    Airlines like JetBlue, Southwest, and Delta fly from Seattle to Massachusetts in about 5h 28m. The time it takes to get you to your destination can typically vary by up to 1h 27m. The distance between Seattle and Massachusetts is about 2487 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $98 on American Airlines. Other airlines that offer cheap prices include JetBlue from $117 and Delta from $118 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 Aer Lingus (100%), JetBlue (100%) or TAP AIR PORTUGAL (100%) 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 $1,147, our data shows the cheapest flight currently is $153. When looking at the most popular route, (Seattle/Tacoma Intl - Boston Logan Intl), you can expect to pay $297 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, March is the cheapest month in which you can book a flight from Seattle to Massachusetts (average of $98). Flying from Seattle to Massachusetts in December is currently the most expensive (average of $1,006). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Massachusetts

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Las Vegas flights
Seattle to Los Angeles flights
Seattle to Dallas/Fort Worth flights
Seattle to Denver flights
Seattle to Newark flights
Seattle to O'Hare Intl flights
Seattle to Ontario flights
Seattle to John F Kennedy Intl flights
Seattle to LaGuardia flights
Seattle to San Francisco flights
Seattle to Sky Harbor Intl flights
Seattle to San Diego flights
Seattle to Santa Ana flights
Seattle to Honolulu flights
Portland to Los Angeles flights
Seattle to Dulles Intl flights
Seattle to Boston flights
Seattle to San Jose flights
Seattle to Orlando flights
Portland to Las Vegas flights
Seattle to Hobby flights
Seattle to Reagan-National flights
Seattle to Miami flights
Seattle to Atlanta flights
Seattle to Nashville flights
Seattle to Salt Lake City flights
Seattle to Baltimore flights
Seattle to Kahului flights
Seattle to George Bush Intcntl flights
Portland to San Francisco flights
Seattle to Minneapolis flights
Seattle to Detroit flights
Portland to Newark flights
Portland to Denver flights
Seattle to Philadelphia flights
Portland to Dallas/Fort Worth flights
Seattle to Austin flights
Portland to San Diego flights
Everett to Los Angeles flights
Seattle to Lihue flights
Seattle to Love Field flights
Portland to John F Kennedy Intl flights
Seattle to Sacramento flights
Everett to San Francisco flights
Portland to Sky Harbor Intl flights
Seattle to Kailua-Kona flights
Seattle to Fort Lauderdale flights
Seattle to Raleigh flights
Seattle to Tampa flights
Portland to Honolulu flights

Top 8 airlines flying from Seattle to Massachusetts

Discover the top 8 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 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$118Average$300FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$140Average$325FlexibilityNo cancel feeOn-time62%
DeltaCheapest$160Average$409FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$178Average$403FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$194Average$326FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$394FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$230Average$449FlexibilityNo cancel feeOn-time75%
Sun Country AirCheapest$233Average$457FlexibilityNo cancel feeOn-time83%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights