What is the most punctual flight time for Boston to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

As of November 2025, there are 19 flights per day flying from Boston to Seattle. The most common time of day flights depart is 7:00AM, with 68% of flights taking off at noon.

What airlines fly to Seattle?

Delta, JetBlue and Alaska Airlines are the top three most popular airlines that fly to Seattle from Boston 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 often are flights from Boston to Seattle delayed?

Historically, on average around 12% of flights between Boston and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 177 minutes.

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

Frontier, United Airlines, and Alaska Airlines are the most popular carriers operating from Boston Logan Intl to Seattle/Tacoma Intl

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

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

The number of flights available between Boston and Seattle is 133 per week as of November 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

Which airline has the best punctuality record on Boston to Seattle flights?

According to our data, Hainan Airlines have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

Which airlines fly direct from Boston to Seattle?

Several airlines offer direct flights from Boston to Seattle. Some of them include Delta, Jet Blue, United Airlines, Spirit Airlines, and American Airlines. The fastest flight from Boston to Seattle takes 6h 05min with the departure airport being Boston Logan International Airport (BOS) and the arrival airport being Seattle Tacoma International Airport (SEA). If you would like to arrive at Paine Field (PAE) instead, Alaska Airlines flights have that option. You can also consider taking a single-stop flight to Seattle from Boston as American Airlines, United Airlines, and Alaska Airlines all have this option. The layover for American Airlines is at Philadelphia Airport (PHL) or Chicago O'Hare International Airport (ORD) while United Airlines have the layover at Washington Dulles Airport (IAD) or Newark Airport (EWR). The layover time is usually between 1-3 hours long. What is the best way to get in and out of airports in Boston and Seattle? There are various public options to get to and from Boston Logan International Airport (BOS). MBTA Silver Line Bus is a rapid transit bus service that runs between South Station and the airport or you can opt to head to the MBTA Subway and take the Blue Line subway to the airport station, which is a short walk from all terminals. Amtrak offers train service to and from Boston's South Station which is a 20-minute ride on the Silver Line bus to the airport. There are several other bus companies that provide transportation to Boston Logan International Airport, including Greyhound, Peter Pan, and Megabus. You can also opt for a private shuttle, taxi or car rental. To get to and from Paine Field Airport (PAE), you can take the Swift Green Line that runs between Everett Station and Seaway Transit Center, which is near the airport. Seattle-Tacoma International Airport (SEA) is served by the Sound Transit Link Light Rail and travelers can opt to hail a taxi or rent a car from near the airport. What are the benefits of the different airports in Boston and Seattle? Boston Logan International Airport (BOS) is the main airport in Boston and it offers a wide range of domestic and international flights, as well as a variety of amenities and services for travelers. On the other hand, Manchester-Boston Regional Airport (MHT) is smaller and is located about an hour's drive north of Boston which offers convenient access to New Hampshire's coast and mountains. Seattle-Tacoma International Airport (SEA) is the largest airport in the Pacific Northwest and offers easy access to Seattle's downtown area, as well as a variety of international and domestic flights. Paine Field Airport (PAE) is a smaller airport located about 23 miles north of Seattle that offers a more convenient option for travelers heading to the northern suburbs of Seattle or the nearby cities of Mukilteo and Everett. It is likely to have shorter queues at security checkpoints. Which cities can you get to from Seattle Tacoma International Airport (SEA)? The city of Seattle is easily accessible from SEA via the Link light rail train, which takes about 30 minutes. Tacoma is located about 30 miles south of SEA and can be reached via bus or car. Pierce Transit operates several bus routes from SEA to Tacoma, and many rental car companies offer car rentals at SEA that can be used to get to Tacoma. Bellevue is located east of Seattle and can be reached via the Link light rail train or rental car. Everett is located about 30 miles north of Seattle and can be reached via bus or car. Community Transit operates several bus routes from SEA to Everett, and rental cars are available at the airport.

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

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

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

As of November 2025, there are 8 operators available to choose from for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport.

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

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$114 Cheap Flights from Boston to Seattle in 2025/26

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11:00 am - 6:25 pmBOS-SEA

10h 25m1 stop

11:51 pm - 10:39 amSEA-BOS

7h 48m1 stop

$247United Airlines

Find Deal

mié., nov. 19 - dom., nov. 23

6:00 am - 11:28 amBOS-SEA

8h 28m1 stop

6:00 am - 6:32 pmSEA-BOS

9h 32m1 stop

$252United Airlines

Find Deal

mié., nov. 19 - dom., nov. 23

4:24 pm - 9:56 amBOS-SEA

20h 32m2 stops

12:48 pm - 10:22 amSEA-BOS

18h 34m2 stops

$259Multiple Airlines

Find Deal

sáb., dic. 6 - sáb., dic. 13

4:24 pm - 8:34 pmBOS-SEA

31h 10m1 stop

11:10 pm - 7:29 amSEA-BOS

5h 19mnonstop

$267Alaska Airlines

Find Deal

mar., nov. 18 - mié., nov. 19

4:20 pm - 12:36 pmBOS-SEA

23h 16m1 stop

3:35 pm - 11:59 pmSEA-BOS

5h 24mnonstop

$277Alaska Airlines

Find Deal

mar., mar. 10 - mié., mar. 11

12:55 pm - 10:20 pmBOS-SEA

12h 25m1 stop

8:04 am - 10:31 pmSEA-BOS

11h 27m1 stop

$283American Airlines

Find Deal

vie., ene. 23 - sáb., ene. 31

1:45 pm - 11:25 pmBOS-SEA

12h 40m1 stop

6:00 am - 4:55 pmSEA-BOS

7h 55m1 stop

$295American Airlines

Find Deal

mié., dic. 10 - dom., dic. 14

9:30 am - 7:43 pmBOS-SEA

13h 13m1 stop

10:22 pm - 6:50 amSEA-BOS

5h 28mnonstop

$306Delta

Find Deal

mié., feb. 18 - jue., feb. 26

11:25 am - 2:44 pmBOS-SEA

6h 19mnonstop

10:25 pm - 6:55 amSEA-BOS

5h 30mnonstop

$307Delta

Find Deal

sáb., dic. 6 - lun., dic. 15

7:00 am - 10:20 amBOS-SEA

6h 20mnonstop

11:59 pm - 2:20 pmSEA-BOS

11h 21m1 stop

$322JetBlue

Find Deal

vie., may. 1 - vie., may. 1

Alaska Airlines flights from Boston to Seattle

Our best Alaska Airlines deals on Boston to Seattle flight tickets

Alaska Airlines

Nov 18

BOS4:24 pmBoston Logan Intl

31h 10m

1 stop

SEA8:34 pmSeattle/Tacoma Intl

Nov 19

SEA11:10 pmSeattle/Tacoma Intl

5h 19m

BOS7:29 amBoston Logan Intl

$267

Find similar

Alaska Airlines

Mar 10

BOS4:20 pmBoston Logan Intl

23h 16m

1 stop

SEA12:36 pmSeattle/Tacoma Intl

Mar 11

SEA3:35 pmSeattle/Tacoma Intl

5h 24m

BOS11:59 pmBoston Logan Intl

$277

Find similar

Alaska Airlines

Dec 7

BOS9:00 amBoston Logan Intl

6h 35m

SEA12:35 pmSeattle/Tacoma Intl

Dec 7

SEA3:38 pmSeattle/Tacoma Intl

5h 21m

BOS11:59 pmBoston Logan Intl

$301

Find similar

United Airlines flights from Boston to Seattle

Our best United Airlines deals on Boston to Seattle flight tickets

United Airlines

Nov 19

BOS11:00 amBoston Logan Intl

10h 25m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

Nov 23

SEA11:51 pmSeattle/Tacoma Intl

7h 48m

1 stop

BOS10:39 amBoston Logan Intl

$247

Find similar

United Airlines

Nov 19

BOS6:00 amBoston Logan Intl

8h 28m

1 stop

SEA11:28 amSeattle/Tacoma Intl

Nov 23

SEA6:00 amSeattle/Tacoma Intl

9h 32m

1 stop

BOS6:32 pmBoston Logan Intl

$252

Find similar

United Airlines

Nov 19

BOS11:00 amBoston Logan Intl

10h 25m

1 stop

SEA6:25 pmSeattle/Tacoma Intl

Dec 6

SEA8:10 amSeattle/Tacoma Intl

7h 38m

1 stop

BOS6:48 pmBoston Logan Intl

$264

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Fly from

Fly to

Route

Depart

Return

Price

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 11/19

11:00 am-6:25 pm

1 stop10h 25m

Seattle/Tacoma Intl

dom. 11/23

11:51 pm-10:39 am

1 stop7h 48m

$247

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 11/19

6:00 am-11:28 am

1 stop8h 28m

Seattle/Tacoma Intl

dom. 11/23

6:00 am-6:32 pm

1 stop9h 32m

$252

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 12/6

4:24 pm-9:56 am

2 stops20h 32m

Seattle/Tacoma Intl

sáb. 12/13

12:48 pm-10:22 am

2 stops18h 34m

$259

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 11/18

4:24 pm-8:34 pm

1 stop31h 10m

Seattle/Tacoma Intl

mié. 11/19

11:10 pm-7:29 am

Nonstop5h 19m

$267

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mar. 3/10

4:20 pm-12:36 pm

1 stop23h 16m

Seattle/Tacoma Intl

mié. 3/11

3:35 pm-11:59 pm

Nonstop5h 24m

$277

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 1/23

12:55 pm-10:20 pm

1 stop12h 25m

Seattle/Tacoma Intl

sáb. 1/31

8:04 am-10:31 pm

1 stop11h 27m

$283

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 12/10

1:45 pm-11:25 pm

1 stop12h 40m

Seattle/Tacoma Intl

dom. 12/14

6:00 am-4:55 pm

1 stop7h 55m

$295

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

mié. 2/18

9:30 am-7:43 pm

1 stop13h 13m

Seattle/Tacoma Intl

jue. 2/26

10:22 pm-6:50 am

Nonstop5h 28m

$306

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

sáb. 12/6

11:25 am-2:44 pm

Nonstop6h 19m

Seattle/Tacoma Intl

lun. 12/15

10:25 pm-6:55 am

Nonstop5h 30m

$307

BostonSeattle

BOS - SEA

BOSSEA

Boston Logan Intl

vie. 5/1

7:00 am-10:20 am

Nonstop6h 20m

Seattle/Tacoma Intl

vie. 5/1

11:59 pm-2:20 pm

1 stop11h 21m

$322

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How to get the cheapest flight ticket from Boston 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

Delays

Other information

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Boston to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $237. If you don’t want to visit Seattle in January, then you should wait until March to fly from Boston, when ticket prices are also cheap, with an average price of $279.

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

On average, the least expensive day to fly to Seattle from Boston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $390. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $500.

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

Flying to Seattle from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $312 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $455. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

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

You are more likely to see cheaper flights to Seattle from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $342 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Boston for as low as $297 on momondo.

What cabin class options are available on Boston Logan Intl to Seattle/Tacoma Intl flights?

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

How have Boston to Seattle flight prices changed over time?

As of November 2025, prices for Boston to Seattle flights are approximately 24% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Boston to Seattle (BOS to SEA) flight deals and tips

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

Best Price Found	$201
Fastest flight time	6h 15m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Boston in the past 72 hours is $201. The best round-trip flight deal from Boston to Seattle found on momondo in the last 72 hours is $339.

The fastest flight from Boston to Seattle takes 6h 15m

Direct flights go from Boston to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

How far is Boston Logan Intl to Seattle/Tacoma Intl by plane?
The straight-line distance from Boston Logan Intl to Seattle/Tacoma Intl is 2484.0 mi. Flights usually cover this in 6h 19m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport are updated daily.
How many operators does momondo search for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport?
As of November 2025, there are 8 operators available to choose from for flights from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Boston to Seattle?
Based on momondo bookings for flights between Boston and Seattle, the leading plane model is Airbus A321neo, making up 24.39% of the total bookings. Other popular models include Boeing 737 with 21.04%, Boeing 737 MAX 9 with 18.54%, and Boeing 737-900 Passenger/BBJ3 (winglets) with 14.84%.
What is the most popular airline from Boston to Seattle?
Based on momondo bookings for flights between Boston and Seattle, the leading airline is Delta, making up 35% of the total bookings. Other popular airlines include JetBlue with 30%, Alaska Airlines with 23%, and Hawaiian Airlines with 6%.

Best airlines flying from Boston to Seattle

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $136	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
Hawaiian Airlines	PriceFrom $139	Free Cancellation	Rating 7.8 2,804 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $155	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
Sun Country Air	PriceFrom $167	Free Cancellation	Rating 6.9 335 reviews	Search Sun Country Air flights
American Airlines	PriceFrom $216	Free Cancellation	Rating 7.2 11,042 reviews	Search American Airlines flights
Alaska Airlines	PriceFrom $223	Free Cancellation	Rating 8.0 11,242 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $233	Free Cancellation	Rating 7.4 9,004 reviews	Search United Airlines flights
Southwest	PriceFrom $259	Free Cancellation	Rating 8.0 4,240 reviews	Search Southwest flights

Alaska Airlines Flights From Boston to Seattle
Alaska Airlines flies from Boston to Seattle around 7 times per week, with 11,241 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Boston to Seattle in the last 72 hours was $223 (round-trip), much lower than the average airfare cost of $413 for Alaska Airlines flights on this route.
Delta Flights From Boston to Seattle
The best Delta deal for Boston to Seattle flight tickets found on momondo in the last 72 hours was $155, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $366 round-trip. Delta operates 14 flights out of Boston into Seattle in an average week, so prices vary by time and availability. 8,004 Delta reviews by users on momondo have scored the airline at 7.9/10.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

Kirkland

Westport

Shoreline

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Seattle. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Boston to Seattle flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Boston.

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

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Boston and alert you when they change.

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Cheap flights from Boston to Seattle from $114

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Seattle departing on 1/31. 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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How to get the cheapest flight ticket from Boston 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

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 Boston Logan Intl to Seattle/Tacoma Intl flight route?

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

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

What cabin class options are available on Boston Logan Intl to Seattle/Tacoma Intl flights?

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

How have Boston to Seattle flight prices changed over time?

As of November 2025, prices for Boston to Seattle flights are approximately 24% cheaper when compared to flights at the same time last year.

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

Frontier, United Airlines, and Alaska Airlines are the most popular carriers operating from Boston Logan Intl to Seattle/Tacoma Intl

What airlines fly to Seattle?

How often are flights from Boston to Seattle delayed?

Historically, on average around 12% of flights between Boston and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 177 minutes.

What is the most punctual flight time for Boston to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boston to Seattle flights?

According to our data, Hainan Airlines have had the least number of delays on this route over the last 12 months; with no flights being classified as delayed.

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

As of November 2025, there are 19 flights per day flying from Boston to Seattle. The most common time of day flights depart is 7:00AM, with 68% of flights taking off at noon.

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

The number of flights available between Boston and Seattle is 133 per week as of November 2025. The most frequent departure day is Mon, with 21% of weekly flights leaving on this day.

When to book flights from Boston to Seattle

Cheap Boston to Seattle (BOS to SEA) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

How far is Boston Logan Intl to Seattle/Tacoma Intl by plane?

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

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

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

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

What is the most popular plane model from Boston to Seattle?

What is the most popular airline from Boston to Seattle?

Best airlines flying from Boston to Seattle

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

Alaska Airlines Flights From Boston to Seattle

Delta Flights From Boston to Seattle

Traveling to a place near Seattle?

Why use momondo?

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

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

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

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

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.

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Airports servicing Washington