Cheap flights from Seattle to Boston from $78

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Flight information for Seattle to Boston
(SEA to BOS)

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

Best Price Found

$78

Fastest flight time

4h 23m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from Seattle in the past 72 hours is $78. The best round-trip flight deal from Seattle to Boston found on momondo in the last 72 hours is $208.
The fastest flight from Seattle to Boston takes 4h 23m
Direct flights go from Seattle to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)

How to get the cheapest flight ticket from Seattle to Boston

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 from Seattle to Boston?

January. The cheapest time of year to fly to Boston from Seattle is January. Most expensive is June

What is the cheapest day to depart Seattle for Boston?

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Saturday

When is the cheapest time to fly from Seattle to Boston?

In the afternoon. Seattle to Boston flights are approximately 22% more expensive in the morning than in the afternoon

What is the cheapest airline that flies to Boston from Seattle?

Spirit Airlines. Alaska Airlines, Delta, and JetBlue are the most popular carriers operating from Seattle to Boston

What is the cheapest Seattle to Boston flight route?

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

How far in advance should you book Seattle to Boston flights?

21 days before. The cheapest time to buy a flight from Seattle to Boston is approximately 21 days to departure

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

22 flights are operational weekly from Seattle to Boston as of October 2023. The most popular departure time for this route is 9:00AM, with 42% of flights per day taking off at noon.

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

As of October 2023, 155 flights take off from Seattle and land in Boston each week. The most common flight departure day for this route is Thursday, with 15% of weekly flights taking off on this day.

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

There are 4 cabin classes available to choose from on Seattle to Boston 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 Seattle to Boston flights?

You could potentially save up to 5% on your flight if you consider stops on a Seattle to Boston flight.

If you are looking to fly from Seattle to Boston, you are most likely going to fly from Seattle/Tacoma Intl Airport to Boston Logan Intl Airport, the most popular airports on that route. When traveling from Seattle, it is helpful to have an alternative airport to fly into when you land in Boston. The nearest airport to Boston Logan Intl Airport is Manchester Airport which is located in Manchester. In October, $178 is typically the cheapest round trip price you’ll find from Seattle to Boston which you can find when you fly SEA — BOS.

Seattle/Tacoma Intl Airport (SEA) to Boston Logan Intl Airport (BOS)$178
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Seattle/Tacoma Intl Airport (SEA) to Manchester Airport (MHT)$485
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Easily compare round-trip flights from Seattle to Boston

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Seattle to Boston by changing tabs
Spirit Airlines
Oct 24
SEA10:40 amSeattle/Tacoma Intl
26h 15m
3 stops
BOS3:55 pmBoston Logan Intl
Oct 31
BOS5:23 pmBoston Logan Intl
19h 27m
2 stops
SEA9:50 amSeattle/Tacoma Intl
Multiple Airlines
Nov 1
SEA1:06 pmSeattle/Tacoma Intl
19h 47m
2 stops
BOS11:53 amBoston Logan Intl
Nov 4
BOS7:58 amBoston Logan Intl
12h 50m
1 stop
SEA5:48 pmSeattle/Tacoma Intl
Alaska Airlines
Oct 24
SEA9:27 pmSeattle/Tacoma Intl
5h 18m
BOS5:45 amBoston Logan Intl
Oct 31
BOS9:15 amBoston Logan Intl
6h 25m
SEA12:40 pmSeattle/Tacoma Intl
JetBlue
Dec 24
SEA11:59 pmSeattle/Tacoma Intl
5h 07m
BOS8:06 amBoston Logan Intl
Jan 5
BOS5:17 pmBoston Logan Intl
6h 27m
SEA8:44 pmSeattle/Tacoma Intl
American Airlines
Oct 27
SEA7:15 amSeattle/Tacoma Intl
10h 37m
1 stop
BOS8:52 pmBoston Logan Intl
Nov 4
BOS10:59 amBoston Logan Intl
11h 15m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
United Airlines
Dec 8
SEA11:49 pmSeattle/Tacoma Intl
11h 23m
2 stops
BOS2:12 pmBoston Logan Intl
Dec 12
BOS5:30 amBoston Logan Intl
12h 30m
2 stops
SEA3:00 pmSeattle/Tacoma Intl

Find the cheapest one-way flights from Seattle to Boston

If you're looking for one-way flights from Seattle to Boston, view some of our deals below provided by Alaska Airlines, Frontier and JetBlue
Frontier
Oct 24
SEA5:30 amSeattle/Tacoma Intl
26h 09m
2 stops
BOS10:39 amBoston Logan Intl
Multiple Airlines
Nov 1
SEA1:06 pmSeattle/Tacoma Intl
19h 47m
2 stops
BOS11:53 amBoston Logan Intl
Spirit Airlines
Oct 24
SEA10:40 amSeattle/Tacoma Intl
26h 15m
3 stops
BOS3:55 pmBoston Logan Intl

Search last-minute flights to Boston from Seattle

Find and compare round-trip flight prices for your last-minute flight from Seattle to Boston
Spirit Airlines
Oct 10
SEA10:40 amSeattle/Tacoma Intl
26h 15m
3 stops
BOS3:55 pmBoston Logan Intl
Nov 14
BOS11:25 amBoston Logan Intl
25h 42m
3 stops
SEA10:07 amSeattle/Tacoma Intl
Multiple Airlines
Oct 8
SEA5:30 amSeattle/Tacoma Intl
51h 23m
2 stops
BOS11:53 amBoston Logan Intl
Nov 8
BOS7:58 amBoston Logan Intl
12h 58m
1 stop
SEA5:56 pmSeattle/Tacoma Intl
Alaska Airlines
Oct 10
SEA9:27 pmSeattle/Tacoma Intl
5h 18m
BOS5:45 amBoston Logan Intl
Nov 1
BOS7:00 amBoston Logan Intl
6h 24m
SEA10:24 amSeattle/Tacoma Intl
JetBlue
Oct 10
SEA11:22 pmSeattle/Tacoma Intl
9h 47m
1 stop
BOS12:09 pmBoston Logan Intl
Nov 14
BOS11:40 amBoston Logan Intl
11h 13m
1 stop
SEA7:53 pmSeattle/Tacoma Intl
American Airlines
Oct 13
SEA12:38 amSeattle/Tacoma Intl
10h 08m
1 stop
BOS1:46 pmBoston Logan Intl
Oct 24
BOS1:04 pmBoston Logan Intl
9h 10m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
United Airlines
Oct 13
SEA11:48 pmSeattle/Tacoma Intl
11h 28m
2 stops
BOS2:16 pmBoston Logan Intl
Oct 17
BOS8:53 amBoston Logan Intl
13h 34m
2 stops
SEA7:27 pmSeattle/Tacoma Intl

Best airlines flying from Seattle to Boston

Compare and see reviews for airlines that fly from Seattle to Boston with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $119Free CancellationRating
6.0
2,809 reviews
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Alaska AirlinesPriceFrom $125Free CancellationRating
7.9
3,001 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $128Free CancellationRating
7.2
2,719 reviews
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JetBluePriceFrom $139Free CancellationRating
6.9
1,104 reviews
Search JetBlue flights
DeltaPriceFrom $141Free CancellationRating
7.8
1,565 reviews
Search Delta flights
Sun Country AirPriceFrom $147Free CancellationRating
7.3
59 reviews
Search Sun Country Air flights
American AirlinesPriceFrom $172Free CancellationRating
7.1
2,893 reviews
Search American Airlines flights
  • Alaska Airlines Flights From Seattle to Boston

    The lowest priced Alaska Airlines flight from Seattle to Boston from the last 72 hours was $125. Generally, Alaska Airlines has 17 flights on this route every week with an average price of $377. Alaska Airlines is rated 7.9/10 by our users.

  • Delta Flights From Seattle to Boston

    The best Delta deal for Seattle to Boston flight tickets found on momondo in the last 72 hours was $141, round-trip. It should be noted that an average Delta flight deal for this route in this time was higher, at $404 round-trip. Delta operates 20 flights out of Seattle into Boston in an average week, so prices vary by time and availability. 1,565 Delta reviews by users on momondo have scored the airline at 7.8/10.


Alaska Airlines flights from Seattle to Boston

Our best Alaska Airlines deals on Seattle to Boston flight tickets
Alaska Airlines
Oct 24
SEA9:27 pmSeattle/Tacoma Intl
5h 18m
BOS5:45 amBoston Logan Intl
Oct 31
BOS9:15 amBoston Logan Intl
6h 25m
SEA12:40 pmSeattle/Tacoma Intl
Alaska Airlines
Oct 24
SEA9:27 pmSeattle/Tacoma Intl
5h 18m
BOS5:45 amBoston Logan Intl
Oct 30
BOS7:00 amBoston Logan Intl
6h 24m
SEA10:24 amSeattle/Tacoma Intl
Alaska Airlines
Oct 28
SEA3:44 pmSeattle/Tacoma Intl
5h 15m
BOS11:59 pmBoston Logan Intl
Oct 31
BOS7:57 pmBoston Logan Intl
13h 39m
1 stop
SEA6:36 amSeattle/Tacoma Intl

American Airlines flights from Seattle to Boston

Our best American Airlines deals on Seattle to Boston flight tickets
American Airlines
Oct 27
SEA7:15 amSeattle/Tacoma Intl
10h 37m
1 stop
BOS8:52 pmBoston Logan Intl
Nov 4
BOS10:59 amBoston Logan Intl
11h 15m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
American Airlines
Oct 31
SEA12:38 amSeattle/Tacoma Intl
10h 08m
1 stop
BOS1:46 pmBoston Logan Intl
Nov 8
BOS6:45 amBoston Logan Intl
8h 59m
1 stop
SEA12:44 pmSeattle/Tacoma Intl
American Airlines
Oct 13
SEA12:38 amSeattle/Tacoma Intl
10h 08m
1 stop
BOS1:46 pmBoston Logan Intl
Oct 24
BOS1:04 pmBoston Logan Intl
9h 10m
1 stop
SEA7:14 pmSeattle/Tacoma Intl

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

    Boston Logan Intl is 2484.0 mi away from Seattle/Tacoma Intl. A reasonable flight in good conditions will take 5h 07m.

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Alternative routes for Seattle to Boston

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Spokane to Boston Flights
Fastest flight time7h 29m
Cheapest price$361
Bellingham to Boston Flights
Fastest flight time7h 34m
Cheapest price$326

Similar Seattle to Boston flights

Flexible with your destination? Broaden your search and find flights similar to your Seattle to Boston route

Why use momondo?

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

It is quick and easy to find Seattle to Boston flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Boston that suits you.

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

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

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

momondo helps you find the best flight between Seattle and Boston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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


An easier way to manage your Boston trip

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