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Cheap flights from Seattle to Boston from $152

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 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
10:45 pm - 10:08 am
SEA
-
MHT
8h 23m
1 stop
American Airlines Logo
5:05 pm - 12:35 am
MHT
-
SEA
10h 30m
1 stop
$293American Airlines
Wed, Sep 30 - Tue, Oct 6
United Airlines Logo
8:10 am - 7:01 pm
SEA
-
MHT
7h 51m
1 stop
United Airlines Logo
9:25 am - 6:52 pm
MHT
-
SEA
12h 27m
2 stops
$298United Airlines
Wed, Oct 14 - Wed, Oct 21
Southwest Logo
12:10 am - 10:50 am
SEA
-
MHT
7h 40m
1 stop
Southwest Logo
6:55 pm - 12:50 am
MHT
-
SEA
8h 55m
1 stop
$376Southwest
Wed, Oct 21 - Sun, Oct 25
American Airlines Logo
9:58 pm - 10:07 am
SEA
-
MHT
9h 09m
1 stop
American Airlines Logo
5:41 pm - 11:59 pm
MHT
-
SEA
9h 18m
1 stop
$377American Airlines
Wed, Aug 12 - Wed, Aug 19
American Airlines Logo
8:20 am - 7:04 pm
SEA
-
MHT
7h 44m
1 stop
American Airlines Logo
6:00 am - 12:09 pm
MHT
-
SEA
9h 09m
1 stop
$381American Airlines
Wed, Sep 30 - Tue, Oct 6
American Airlines Logo
10:45 pm - 10:08 am
SEA
-
MHT
8h 23m
1 stop
American Airlines Logo
8:10 am - 3:43 pm
MHT
-
SEA
10h 33m
2 stops
$382American Airlines
Wed, Sep 30 - Tue, Oct 6
Southwest Logo
7:30 pm - 9:40 am
SEA
-
MHT
11h 10m
2 stops
Southwest Logo
3:05 pm - 11:25 pm
MHT
-
SEA
11h 20m
2 stops
$386Southwest
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
5:20 am - 9:10 pm
SEA
-
MHT
12h 50m
1 stop
Southwest Logo
3:05 pm - 11:25 pm
MHT
-
SEA
11h 20m
2 stops
$387Southwest
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
5:00 am - 6:15 pm
SEA
-
MHT
10h 15m
2 stops
Southwest Logo
5:25 am - 12:10 pm
MHT
-
SEA
9h 45m
2 stops
$391Southwest
Thu, Oct 1 - Thu, Oct 15
United Airlines Logo
8:10 am - 7:00 pm
SEA
-
MHT
7h 50m
1 stop
United Airlines Logo
9:25 am - 3:51 pm
MHT
-
SEA
9h 26m
1 stop
$403United Airlines
Wed, Sep 23 - Sat, Sep 26

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Southwest flights from Seattle to Manchester, New Hampshire

Our best Southwest deals on Seattle to Manchester, New Hampshire flight tickets
Southwest
Aug 31
SEA11:05 pmSeattle/Tacoma Intl
9h 45m
1 stop
MHT11:50 amManchester
Sep 7
MHT6:25 pmManchester
8h 30m
1 stop
SEA11:55 pmSeattle/Tacoma Intl
$294
Southwest
Aug 31
SEA11:05 pmSeattle/Tacoma Intl
12h 15m
2 stops
MHT2:20 pmManchester
Sep 7
MHT6:25 pmManchester
8h 30m
1 stop
SEA11:55 pmSeattle/Tacoma Intl
$300
Southwest
Aug 27
SEA11:05 pmSeattle/Tacoma Intl
10h 05m
1 stop
MHT12:10 pmManchester
Aug 30
MHT6:10 pmManchester
8h 00m
1 stop
SEA11:10 pmSeattle/Tacoma Intl
$376

American Airlines flights from Seattle to Manchester, New Hampshire

Our best American Airlines deals on Seattle to Manchester, New Hampshire flight tickets
American Airlines
Sep 30
SEA10:45 pmSeattle/Tacoma Intl
8h 23m
1 stop
MHT10:08 amManchester
Oct 6
MHT5:05 pmManchester
10h 30m
1 stop
SEA12:35 amSeattle/Tacoma Intl
$293
American Airlines
Sep 1
SEA9:58 pmSeattle/Tacoma Intl
9h 09m
1 stop
MHT10:07 amManchester
Sep 6
MHT5:41 pmManchester
9h 32m
1 stop
SEA12:13 amSeattle/Tacoma Intl
$324
American Airlines
Aug 12
SEA9:58 pmSeattle/Tacoma Intl
9h 09m
1 stop
MHT10:07 amManchester
Aug 19
MHT5:41 pmManchester
9h 18m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
$377

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 July 9, 2026.
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

Cheapest round-trip

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 9/30

10:45 pm-10:08 am

1 stop8h 23m

Manchester

Tue 10/6

5:05 pm-12:35 am

1 stop10h 30m

$293

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 10/14

8:10 am-7:01 pm

1 stop7h 51m

Manchester

Wed 10/21

9:25 am-6:52 pm

2 stops12h 27m

$298
Quickest round-trip

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 10/21

12:10 am-10:50 am

1 stop7h 40m

Manchester

Sun 10/25

6:55 pm-12:50 am

1 stop8h 55m

$376

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 8/12

9:58 pm-10:07 am

1 stop9h 09m

Manchester

Wed 8/19

5:41 pm-11:59 pm

1 stop9h 18m

$377

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 9/30

8:20 am-7:04 pm

1 stop7h 44m

Manchester

Tue 10/6

6:00 am-12:09 pm

1 stop9h 09m

$381

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 9/30

10:45 pm-10:08 am

1 stop8h 23m

Manchester

Tue 10/6

8:10 am-3:43 pm

2 stops10h 33m

$382

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 8/12

7:30 pm-9:40 am

2 stops11h 10m

Manchester

Wed 8/19

3:05 pm-11:25 pm

2 stops11h 20m

$386

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 8/12

5:20 am-9:10 pm

1 stop12h 50m

Manchester

Wed 8/19

3:05 pm-11:25 pm

2 stops11h 20m

$387

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 10/1

5:00 am-6:15 pm

2 stops10h 15m

Manchester

Thu 10/15

5:25 am-12:10 pm

2 stops9h 45m

$391

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 9/23

8:10 am-7:00 pm

1 stop7h 50m

Manchester

Sat 9/26

9:25 am-3:51 pm

1 stop9h 26m

$403

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 April instead. Flights to Manchester, New Hampshire in April, while not as cheap as those in January, still average around $378.

Can stopping save me money on Seattle to Manchester, New Hampshire flights?

You could potentially save up to 30% on your flight if you consider stops on a Seattle to Manchester, New Hampshire flight.

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 51m

Direct flights

None
The fastest flight from Seattle to Manchester, New Hampshire takes 7h 51m
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

Frequently asked questions about flying from Seattle to Manchester, New Hampshire

  • 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 51m 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
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,785 reviews
Search American Airlines flights
SouthwestPriceFrom $377Free CancellationRating
7.9
4,249 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.
Start using Trips
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