How many flights depart from Massachusetts to Seattle on average per week?

The number of flights available between Massachusetts and Seattle is 120 per week as of August 2026. The most frequent departure day is Mon, with 32% of weekly flights leaving on this day.

What airlines fly to Seattle?

Delta, Alaska Airlines and JetBlue are the top three most popular airlines that fly to Seattle from Massachusetts according to our data. Delta is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Seattle?

Flight times vary depending on what airport in Massachusetts you fly out of and what airport in Seattle you fly into. For example, flying from Boston to Seattle takes 6h 17m on average. On the other hand, flying from Hyannis to Seattle takes 14h 08m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

How many flights depart from Massachusetts to Seattle on average per day?

The number of flights available between Massachusetts and Seattle is 17 per day as of August 2026. The most frequent departure time is 7:00PM, with 48% of daily flights leaving at noon.

What is the cheapest airline that flies from Massachusetts to Seattle/Tacoma Intl?

Delta, United Airlines, and Southwest are the most popular carriers operating from Massachusetts to Seattle/Tacoma Intl

When did momondo last update prices for flights from Massachusetts to Seattle/Tacoma Intl Airport?

Prices for flights from Massachusetts to Seattle/Tacoma Intl Airport are updated daily.

How many operators does momondo search for flights from Massachusetts to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Massachusetts to Seattle/Tacoma Intl Airport is 8 as of August 2026.

How old do you have to be to fly from Massachusetts to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$151 Cheap Flights from Massachusetts to Seattle in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Massachusetts to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:20 pm - 10:37 pm-

6h 17mnonstop

11:42 pm - 8:06 am-

5h 24mnonstop

$299JetBlue

Thu, Sep 10 - Wed, Sep 16

9:55 am - 4:05 pm-

9h 10m

11:13 pm - 10:39 am-

8h 26m

$301United Airlines

Wed, Sep 30 - Mon, Oct 5

3:09 pm - 10:56 pm-

10h 47m

11:56 pm - 10:30 am-

7h 34m

$301American Airlines

Wed, Aug 26 - Mon, Aug 31

1:11 pm - 9:59 pm-

11h 48m

11:57 pm - 11:20 am-

8h 23m

$301American Airlines

Tue, Sep 1 - Tue, Sep 15

12:55 pm - 6:35 pm-

8h 40m

11:59 pm - 11:15 am-

8h 16m

$301Delta

Sat, Oct 10 - Sat, Oct 17

6:15 am - 1:40 pm-

10h 25m

11:59 pm - 11:37 am-

8h 38m

$301Delta

Sat, Aug 22 - Sat, Aug 29

7:20 pm - 10:37 pm-

6h 17mnonstop

11:42 pm - 8:06 am-

5h 24mnonstop

$304JetBlue

Tue, Sep 15 - Tue, Sep 22

6:05 pm - 11:55 pm-

8h 50m

11:05 pm - 11:10 am-

9h 05m

$306Southwest

Mon, Aug 24 - Thu, Aug 27

9:20 am - 4:14 pm-

9h 54m

11:00 pm - 11:01 am-

9h 01m

$312United Airlines

Tue, Sep 15 - Tue, Sep 15

5:40 am - 1:10 pm-

10h 30m

5:20 am - 4:10 pm-

7h 50m

$317Southwest

Sat, Sep 19 - Tue, Sep 22

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Delta flights from Massachusetts to Seattle

Our best Delta deals on Massachusetts to Seattle flight tickets

Delta

Aug 22

ALB6:15 amAlbany Intl

10h 25m

1 stop

SEA1:40 pmSeattle/Tacoma Intl

Aug 29

SEA11:59 pmSeattle/Tacoma Intl

8h 38m

1 stop

ALB11:37 amAlbany Intl

$301

Delta

Oct 30

ALB1:03 pmAlbany Intl

8h 32m

1 stop

SEA6:35 pmSeattle/Tacoma Intl

Nov 5

SEA6:00 amSeattle/Tacoma Intl

9h 11m

1 stop

ALB6:11 pmAlbany Intl

$313

Delta

Aug 25

ALB6:15 amAlbany Intl

8h 48m

1 stop

SEA12:03 pmSeattle/Tacoma Intl

Aug 31

SEA6:00 amSeattle/Tacoma Intl

9h 01m

1 stop

ALB6:01 pmAlbany Intl

$325

Alaska Airlines flights from Massachusetts to Seattle

Our best Alaska Airlines deals on Massachusetts to Seattle flight tickets

Alaska Airlines

Sep 1

BOS8:00 amBoston Logan Intl

29h 25m

1 stop

SEA10:25 amSeattle/Tacoma Intl

Sep 9

SEA8:40 pmSeattle/Tacoma Intl

30h 07m

1 stop

BOS5:47 amBoston Logan Intl

$313

Alaska Airlines

Sep 12

BOS8:00 amBoston Logan Intl

28h 20m

1 stop

SEA9:20 amSeattle/Tacoma Intl

Sep 20

SEA7:40 amSeattle/Tacoma Intl

19h 07m

1 stop

BOS5:47 amBoston Logan Intl

$333

Alaska Airlines

Sep 2

BOS8:00 amBoston Logan Intl

16h 40m

1 stop

SEA9:40 pmSeattle/Tacoma Intl

Sep 11

SEA7:08 amSeattle/Tacoma Intl

20h 01m

1 stop

BOS6:09 amBoston Logan Intl

$335

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Thu 9/10

7:20 pm-10:37 pm

Nonstop6h 17m

Seattle/Tacoma Intl

Wed 9/16

11:42 pm-8:06 am

Nonstop5h 24m

$299

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Wed 9/30

9:55 am-4:05 pm

1 stop9h 10m

Seattle/Tacoma Intl

Mon 10/5

11:13 pm-10:39 am

1 stop8h 26m

$301

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Wed 8/26

3:09 pm-10:56 pm

1 stop10h 47m

Seattle/Tacoma Intl

Mon 8/31

11:56 pm-10:30 am

1 stop7h 34m

$301

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Tue 9/1

1:11 pm-9:59 pm

1 stop11h 48m

Seattle/Tacoma Intl

Tue 9/15

11:57 pm-11:20 am

1 stop8h 23m

$301

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Sat 10/10

12:55 pm-6:35 pm

1 stop8h 40m

Seattle/Tacoma Intl

Sat 10/17

11:59 pm-11:15 am

1 stop8h 16m

$301

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Sat 8/22

6:15 am-1:40 pm

1 stop10h 25m

Seattle/Tacoma Intl

Sat 8/29

11:59 pm-11:37 am

1 stop8h 38m

$301

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 9/15

7:20 pm-10:37 pm

Nonstop6h 17m

Seattle/Tacoma Intl

Tue 9/22

11:42 pm-8:06 am

Nonstop5h 24m

$304

AlbanySeattle

ALB - SEA

ALBSEA

Albany Intl

Mon 8/24

6:05 pm-11:55 pm

1 stop8h 50m

Seattle/Tacoma Intl

Thu 8/27

11:05 pm-11:10 am

1 stop9h 05m

$306

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Tue 9/15

9:20 am-4:14 pm

1 stop9h 54m

Seattle/Tacoma Intl

Tue 9/15

11:00 pm-11:01 am

1 stop9h 01m

$312

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

Sat 9/19

5:40 am-1:10 pm

1 stop10h 30m

Seattle/Tacoma Intl

Tue 9/22

5:20 am-4:10 pm

1 stop7h 50m

$317

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Massachusetts to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Massachusetts to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $340. If you don’t want to visit Seattle in October, then you should wait until March to fly from Massachusetts, when ticket prices are also cheap, with an average price of $352.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Massachusetts is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $444. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Massachusetts because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $574.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Massachusetts in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $431 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $511. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Massachusetts to Seattle/Tacoma Intl flight route?

Fly from Boston Logan Intl to Seattle/Tacoma Intl for the best Massachusetts - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Massachusetts when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $410 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Massachusetts for as low as $376 on momondo.

What cabin class options are available on Massachusetts to Seattle flights?

There are 4 cabin classes available to choose from on Massachusetts to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Massachusetts to Seattle flights?

No. A direct flight is the cheapest option for a flight between Massachusetts to Seattle.

Cheap Massachusetts to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Seattle

Best Price Found	$253
Fastest flight time	6h 17m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Massachusetts in the past 72 hours is $253. The best round-trip flight deal from Massachusetts to Seattle found on momondo in the last 72 hours is $402.

The fastest flight from Massachusetts to Seattle takes 6h 17m

Direct flights go from Massachusetts to Seattle every day.

There is 1 airport in Seattle. From Massachusetts there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

Frequently asked questions about flying from Massachusetts to Seattle

When did momondo last update prices for flights from Massachusetts to Seattle/Tacoma Intl Airport?
Prices for flights from Massachusetts to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Massachusetts to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Massachusetts to Seattle/Tacoma Intl Airport is 8 as of August 2026.
How old do you have to be to fly from Massachusetts to Seattle/Tacoma Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Massachusetts to Seattle?
Based on momondo bookings for flights between Massachusetts and Seattle, the leading plane model is Airbus A321-100/200, making up 31.61% of the total bookings. Other popular models include Airbus A321neo with 27.26%, Airbus A320-100/200 with 20.79%, and Boeing 737 with 8.99%.

Best airlines flying from Massachusetts to Seattle

Compare and see reviews for airlines that fly from Massachusetts to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Hawaiian Airlines	PriceFrom $98	Free Cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
JetBlue	PriceFrom $154	Free Cancellation	Rating 7.2 3,025 reviews	Search JetBlue flights
Delta	PriceFrom $164	Free Cancellation	Rating 7.8 8,484 reviews	Search Delta flights
Sun Country Air	PriceFrom $174	Free Cancellation	Rating 6.7 319 reviews	Search Sun Country Air flights
Alaska Airlines	PriceFrom $232	Free Cancellation	Rating 7.9 12,762 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $254	Free Cancellation	Rating 7.4 10,060 reviews	Search United Airlines flights
American Airlines	PriceFrom $256	Free Cancellation	Rating 7.1 11,851 reviews	Search American Airlines flights
Southwest	PriceFrom $281	Free Cancellation	Rating 8.0 4,222 reviews	Search Southwest flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Kent

Lynnwood

Redmond

Lakewood

Puyallup

Fife

Federal Way

Tukwila

Cle Elum

Marysville

Kirkland

Centralia

Shoreline

Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Seattle?

Finding the right flight to Seattle from Massachusetts is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Massachusetts to Seattle with flexible booking policies on momondo?

All flight searches from Massachusetts to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Massachusetts to Seattle?

Once you have performed a search for Massachusetts to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Massachusetts to Seattle right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Massachusetts to Seattle flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Airports servicing Washington

Walla Walla Airport

Bellingham Airport

Wenatchee Pangborn Field Airport

Eastsound Orcas Island Airport

Friday Harbor SPB Airport

Spokane Airport

Kenmore Air Harbor Airport

Pasco Tri Cities Airport

Pullman Moscow Regional Airport

Rosario SPB Airport

Yakima Air Terminal Airport

Cheap flights from Massachusetts to Seattle from $151

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Seattle departing on 10/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Massachusetts to Seattle

Our best Delta deals on Massachusetts to Seattle flight tickets

Alaska Airlines flights from Massachusetts to Seattle

Our best Alaska Airlines deals on Massachusetts to Seattle flight tickets

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How to get the cheapest flight ticket from Massachusetts to Seattle

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Massachusetts to Seattle/Tacoma Intl flight route?

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

What cabin class options are available on Massachusetts to Seattle flights?

Can stopping save me money on Massachusetts to Seattle flights?

What is the cheapest airline that flies from Massachusetts to Seattle/Tacoma Intl?

What airlines fly to Seattle?

How many flights depart from Massachusetts to Seattle on average per day?

How many flights depart from Massachusetts to Seattle on average per week?

How long does it take to fly to Seattle?

Cheap Massachusetts to Seattle flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

Frequently asked questions about flying from Massachusetts to Seattle

Best airlines flying from Massachusetts to Seattle

Compare and see reviews for airlines that fly from Massachusetts to Seattle with momondo

Traveling to a place near Seattle?

Why use momondo?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington

Fly your favorite airline to Seattle

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seattle

List of cabin classes available on flights landing in Seattle. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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