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Cheap flights from Seattle to Boston from $194

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Boston departing on 12/24. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:05 am - 8:35 pmSEA-MHT
11h 30m2 stops
Southwest Logo
5:00 am - 1:15 pmMHT-SEA
11h 15m1 stop
$387Southwest
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Fri, Jan 9 - Mon, Jan 12
Southwest Logo
6:05 am - 8:35 pmSEA-MHT
11h 30m2 stops
Southwest Logo
5:55 am - 5:50 pmMHT-SEA
14h 55m2 stops
$392Southwest
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Fri, Jan 9 - Mon, Jan 12
American Airlines Logo
12:45 pm - 11:46 pmSEA-MHT
8h 01m1 stop
American Airlines Logo
4:06 pm - 10:07 pmMHT-SEA
9h 01m1 stop
$427American Airlines
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Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
7:35 am - 11:50 pmSEA-MHT
13h 15m2 stops
American Airlines Logo
4:06 pm - 10:07 pmMHT-SEA
9h 01m1 stop
$432American Airlines
Find Deal
Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
7:35 am - 11:50 pmSEA-MHT
13h 15m2 stops
American Airlines Logo
12:15 pm - 10:20 pmMHT-SEA
13h 05m2 stops
$437American Airlines
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Tue, Jan 6 - Sat, Jan 10
United Airlines Logo
8:10 am - 6:51 pmSEA-MHT
7h 41m1 stop
United Airlines Logo
2:17 pm - 8:57 pmMHT-SEA
9h 40m1 stop
$455United Airlines
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Wed, Jan 14 - Sun, Jan 18
American Airlines Logo
10:59 pm - 11:12 amSEA-MHT
9h 13m1 stop
American Airlines Logo
3:58 pm - 9:50 pmMHT-SEA
8h 52m1 stop
$462American Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14
American Airlines Logo
12:45 pm - 11:46 pmSEA-MHT
8h 01m1 stop
American Airlines Logo
4:06 pm - 10:07 pmMHT-SEA
9h 01m1 stop
$463American Airlines
Find Deal
Tue, Jan 6 - Sat, Jan 10
American Airlines Logo
9:00 am - 11:57 pmSEA-MHT
11h 57m2 stops
American Airlines Logo
3:58 pm - 9:50 pmMHT-SEA
8h 52m1 stop
$467American Airlines
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Wed, Dec 10 - Sun, Dec 14
American Airlines Logo
12:45 pm - 11:46 pmSEA-MHT
8h 01m1 stop
American Airlines Logo
6:00 am - 5:45 pmMHT-SEA
14h 45m2 stops
$468American Airlines
Find Deal
Tue, Jan 6 - Sat, Jan 10

Alaska Airlines flights from Seattle to Manchester, New Hampshire

Our best Alaska Airlines deals on Seattle to Manchester, New Hampshire flight tickets
Alaska Airlines
Apr 15
SEA8:00 amSeattle/Tacoma Intl
12h 32m
2 stops
MHT11:32 pmManchester
May 29
MHT4:25 pmManchester
8h 33m
1 stop
SEA9:58 pmSeattle/Tacoma Intl
$572
Find similar
Alaska Airlines
Dec 30
SEA9:00 amSeattle/Tacoma Intl
11h 34m
2 stops
MHT11:34 pmManchester
Jan 12
MHT4:06 pmManchester
9h 23m
1 stop
SEA10:29 pmSeattle/Tacoma Intl
$799
Find similar
Alaska Airlines
Dec 5
SEA9:35 pmSeattle/Tacoma Intl
10h 37m
1 stop
MHT11:12 amManchester
Dec 8
MHT3:55 pmManchester
9h 17m
1 stop
SEA10:12 pmSeattle/Tacoma Intl
$852
Find similar

American Airlines flights from Seattle to Manchester, New Hampshire

Our best American Airlines deals on Seattle to Manchester, New Hampshire flight tickets
American Airlines
Jan 6
SEA12:45 pmSeattle/Tacoma Intl
8h 01m
1 stop
MHT11:46 pmManchester
Jan 10
MHT4:06 pmManchester
9h 01m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
$427
Find similar
American Airlines
Jan 6
SEA7:35 amSeattle/Tacoma Intl
13h 15m
2 stops
MHT11:50 pmManchester
Jan 10
MHT4:06 pmManchester
9h 01m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
$432
Find similar
American Airlines
Jan 6
SEA7:35 amSeattle/Tacoma Intl
13h 15m
2 stops
MHT11:50 pmManchester
Jan 10
MHT12:15 pmManchester
13h 05m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$437
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Manchester, New Hampshire 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, momondo users made 832,500 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Seattle to Manchester, New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 1/9

6:05 am-8:35 pm

2 stops11h 30m

Manchester

Mon 1/12

5:00 am-1:15 pm

1 stop11h 15m

$387

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 1/9

6:05 am-8:35 pm

2 stops11h 30m

Manchester

Mon 1/12

5:55 am-5:50 pm

2 stops14h 55m

$392

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 1/6

12:45 pm-11:46 pm

1 stop8h 01m

Manchester

Sat 1/10

4:06 pm-10:07 pm

1 stop9h 01m

$427

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 1/6

7:35 am-11:50 pm

2 stops13h 15m

Manchester

Sat 1/10

4:06 pm-10:07 pm

1 stop9h 01m

$432

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 1/6

7:35 am-11:50 pm

2 stops13h 15m

Manchester

Sat 1/10

12:15 pm-10:20 pm

2 stops13h 05m

$437

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 1/14

8:10 am-6:51 pm

1 stop7h 41m

Manchester

Sun 1/18

2:17 pm-8:57 pm

1 stop9h 40m

$455

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 12/10

10:59 pm-11:12 am

1 stop9h 13m

Manchester

Sun 12/14

3:58 pm-9:50 pm

1 stop8h 52m

$462

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 1/6

12:45 pm-11:46 pm

1 stop8h 01m

Manchester

Sat 1/10

4:06 pm-10:07 pm

1 stop9h 01m

$463

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 12/10

9:00 am-11:57 pm

2 stops11h 57m

Manchester

Sun 12/14

3:58 pm-9:50 pm

1 stop8h 52m

$467

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 1/6

12:45 pm-11:46 pm

1 stop8h 01m

Manchester

Sat 1/10

6:00 am-5:45 pm

2 stops14h 45m

$468

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Seattle to Manchester, New Hampshire

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 typical price of a round-trip flight between Seattle and Manchester, New Hampshire?

What is the cheapest month to fly to Manchester, New Hampshire?

If you aren’t able to travel during the month of January, then book flights to Manchester, New Hampshire from Seattle during September instead. Flights to Manchester, New Hampshire in September, while not as cheap as those in January, still average around $409.

What is the cheapest day to depart on your flight to Manchester, New Hampshire?

Our data shows that Tuesday is the least expensive day to fly to Manchester, New Hampshire. Tickets to fly out on this day can be as low as $502. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Manchester, New Hampshire on Saturday is $727.

What is the cheapest time of day to depart on your flight to Manchester, New Hampshire?

Our most recent data shows that the best time of day to fly to Manchester, New Hampshire is at noon. Flights from Seattle to Manchester, New Hampshire during this time can be as low as $568. Flights in the morning are often more expensive with an average ticket price of $679.

How have Seattle to Manchester, New Hampshire flight prices changed over time?

When to book flights from Seattle to Manchester, New Hampshire

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Manchester, New Hampshire according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Manchester, New Hampshire (SEA to MHT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Manchester, New Hampshire

Fastest flight time

7h 36m

Direct flights

None
The fastest flight from Seattle to Manchester, New Hampshire takes 7h 36m
There are no direct flights from Seattle to Manchester, New Hampshire. There are no popular flight routes from Seattle to Manchester, New Hampshire.
Search flight deals

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

    The straight-line distance from Seattle/Tacoma Intl to Manchester is 2446.8 mi. Typically, this will take 7h 41m by plane in normal conditions.

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

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

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

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Manchester 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 Seattle/Tacoma Intl Airport to Manchester Airport.

  • What documentation or ID do you need to fly to Manchester Airport?

    The travel and health documents you'll need for your trip to Manchester 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 Manchester Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Seattle to Manchester, New Hampshire?

Best airlines flying from Seattle to Manchester, New Hampshire

Compare and see reviews for airlines that fly from Seattle to Manchester, New Hampshire with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
American AirlinesPriceFrom $333Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
SouthwestPriceFrom $377Free CancellationRating
8.0
4,254 reviews
Search Southwest flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Keene

Why use momondo?

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

Finding the right flight to Manchester from Seattle 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 Manchester quick and easy, saving you time and money.

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

Flights from Seattle to Manchester with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Manchester.

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

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

An easier way to manage your Manchester, New Hampshire 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.
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