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Cheap flights from Manchester, New Hampshire to Seattle from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Manchester, New Hampshire to Seattle departing on 7/21. 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 Manchester, New Hampshire to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:41 pm - 11:59 pm
MHT
-
SEA
9h 18m
1 stop
American Airlines Logo
11:02 am - 10:50 pm
SEA
-
MHT
8h 48m
1 stop
$347American Airlines
Mon, Aug 31 - Thu, Sep 10
American Airlines Logo
6:18 pm - 12:52 am
MHT
-
SEA
9h 34m
1 stop
American Airlines Logo
5:50 am - 5:11 pm
SEA
-
MHT
8h 21m
1 stop
$351American Airlines
Wed, Jul 29 - Wed, Aug 5
Southwest Logo
6:15 pm - 11:35 pm
MHT
-
SEA
8h 20m
1 stop
Southwest Logo
11:00 pm - 11:05 am
SEA
-
MHT
9h 05m
2 stops
$373Southwest
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
5:41 pm - 11:59 pm
MHT
-
SEA
9h 18m
1 stop
American Airlines Logo
11:02 am - 10:50 pm
SEA
-
MHT
8h 48m
1 stop
$381American Airlines
Mon, Aug 31 - Thu, Sep 10
American Airlines Logo
5:41 pm - 11:59 pm
MHT
-
SEA
9h 18m
1 stop
American Airlines Logo
6:18 am - 5:18 pm
SEA
-
MHT
8h 00m
1 stop
$395American Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
6:00 am - 2:51 pm
MHT
-
SEA
11h 51m
2 stops
American Airlines Logo
11:57 pm - 11:52 am
SEA
-
MHT
8h 55m
1 stop
$397American Airlines
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
5:41 pm - 11:35 pm
MHT
-
SEA
8h 54m
1 stop
American Airlines Logo
10:45 pm - 10:08 am
SEA
-
MHT
8h 23m
1 stop
$402American Airlines
Thu, Sep 3 - Fri, Sep 11
Southwest Logo
12:30 pm - 8:25 pm
MHT
-
SEA
10h 55m
2 stops
Southwest Logo
11:00 pm - 11:05 am
SEA
-
MHT
9h 05m
2 stops
$407Southwest
Tue, Sep 15 - Sat, Sep 19
Southwest Logo
3:30 pm - 10:55 pm
MHT
-
SEA
10h 25m
2 stops
Southwest Logo
11:05 pm - 11:15 am
SEA
-
MHT
9h 10m
1 stop
$408Southwest
Mon, Aug 31 - Fri, Sep 4
Southwest Logo
7:25 am - 1:10 pm
MHT
-
SEA
8h 45m
1 stop
Southwest Logo
12:15 am - 11:00 am
SEA
-
MHT
7h 45m
1 stop
$412Southwest
Thu, Oct 1 - Thu, Oct 8

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Southwest flights from Manchester, New Hampshire to Seattle

Our best Southwest deals on Manchester, New Hampshire to Seattle flight tickets
Southwest
Sep 8
MHT6:15 pmManchester
8h 20m
1 stop
SEA11:35 pmSeattle/Tacoma Intl
Sep 12
SEA11:00 pmSeattle/Tacoma Intl
9h 05m
2 stops
MHT11:05 amManchester
$373
Southwest
Sep 15
MHT12:30 pmManchester
10h 55m
2 stops
SEA8:25 pmSeattle/Tacoma Intl
Sep 19
SEA11:00 pmSeattle/Tacoma Intl
9h 05m
2 stops
MHT11:05 amManchester
$407
Southwest
Aug 31
MHT3:30 pmManchester
10h 25m
2 stops
SEA10:55 pmSeattle/Tacoma Intl
Sep 4
SEA11:05 pmSeattle/Tacoma Intl
9h 10m
1 stop
MHT11:15 amManchester
$408

American Airlines flights from Manchester, New Hampshire to Seattle

Our best American Airlines deals on Manchester, New Hampshire to Seattle flight tickets
American Airlines
Aug 31
MHT5:41 pmManchester
9h 18m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Sep 10
SEA11:02 amSeattle/Tacoma Intl
8h 48m
1 stop
MHT10:50 pmManchester
$347
American Airlines
Jul 29
MHT6:18 pmManchester
9h 34m
1 stop
SEA12:52 amSeattle/Tacoma Intl
Aug 5
SEA5:50 amSeattle/Tacoma Intl
8h 21m
1 stop
MHT5:11 pmManchester
$351
American Airlines
Aug 31
MHT5:41 pmManchester
9h 18m
1 stop
SEA11:59 pmSeattle/Tacoma Intl
Sep 10
SEA11:02 amSeattle/Tacoma Intl
8h 48m
1 stop
MHT10:50 pmManchester
$381

momondo Fare Finder

 
Customize your flight search to find flights from Manchester, New Hampshire to Seattle 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 June 29, 2026.
Use the filters below to find and compare flights from Manchester, New Hampshire to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Mon 8/31

5:41 pm-11:59 pm

1 stop9h 18m

Seattle/Tacoma Intl

Thu 9/10

11:02 am-10:50 pm

1 stop8h 48m

$347

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Wed 7/29

6:18 pm-12:52 am

1 stop9h 34m

Seattle/Tacoma Intl

Wed 8/5

5:50 am-5:11 pm

1 stop8h 21m

$351

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 9/8

6:15 pm-11:35 pm

1 stop8h 20m

Seattle/Tacoma Intl

Sat 9/12

11:00 pm-11:05 am

2 stops9h 05m

$373

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Mon 8/31

5:41 pm-11:59 pm

1 stop9h 18m

Seattle/Tacoma Intl

Thu 9/10

11:02 am-10:50 pm

1 stop8h 48m

$381

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 9/8

5:41 pm-11:59 pm

1 stop9h 18m

Seattle/Tacoma Intl

Sat 9/12

6:18 am-5:18 pm

1 stop8h 00m

$395

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 9/15

6:00 am-2:51 pm

2 stops11h 51m

Seattle/Tacoma Intl

Sat 9/19

11:57 pm-11:52 am

1 stop8h 55m

$397

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 9/3

5:41 pm-11:35 pm

1 stop8h 54m

Seattle/Tacoma Intl

Fri 9/11

10:45 pm-10:08 am

1 stop8h 23m

$402

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 9/15

12:30 pm-8:25 pm

2 stops10h 55m

Seattle/Tacoma Intl

Sat 9/19

11:00 pm-11:05 am

2 stops9h 05m

$407

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Mon 8/31

3:30 pm-10:55 pm

2 stops10h 25m

Seattle/Tacoma Intl

Fri 9/4

11:05 pm-11:15 am

1 stop9h 10m

$408
Quickest round-trip

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 10/1

7:25 am-1:10 pm

1 stop8h 45m

Seattle/Tacoma Intl

Thu 10/8

12:15 am-11:00 am

1 stop7h 45m

$412

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 Seattle from

How to get the cheapest flight ticket from Manchester, New Hampshire 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 typical price of a round-trip flight between Manchester, New Hampshire and Seattle?

What is the cheapest month to fly to Seattle?

In general, September is the cheapest month to fly from Manchester, New Hampshire to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $436. If you don’t want to visit Seattle in September, then you should wait until November to fly from Manchester, New Hampshire, when ticket prices are also cheap, with an average price of $456.

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

On average, the least expensive day to fly to Seattle from Manchester, New Hampshire is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $437. 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 Manchester, New Hampshire because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $551.

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

Flying to Seattle from Manchester, New Hampshire in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $421 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $503. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

You could potentially save up to 7% on your flight if you consider stops on a Manchester, New Hampshire to Seattle flight.

When to book flights from Manchester, New Hampshire to Seattle

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

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

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

Fastest flight time

7h 55m

Direct flights

None
The fastest flight from Manchester, New Hampshire to Seattle takes 7h 55m
There are no direct flights from Manchester, New Hampshire to Seattle. There are no popular flight routes from Manchester, New Hampshire to Seattle.
Search flight deals

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

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

    There are 2446.8 mi between Manchester and Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 7h 55m.

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

    Prices for flights from Manchester Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

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

  • How old do you have to be to fly from Manchester Airport to Seattle/Tacoma 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 Manchester 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 airline from Manchester, New Hampshire to Seattle?

Best airlines flying from Manchester, New Hampshire to Seattle

Compare and see reviews for airlines that fly from Manchester, New Hampshire to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $326Free CancellationRating
7.1
11,766 reviews
Search American Airlines flights
SouthwestPriceFrom $379Free CancellationRating
7.9
4,246 reviews
Search Southwest flights

  • Southwest Flights From Manchester, New Hampshire to Seattle

    Across 3 Southwest flights from Manchester, New Hampshire to Seattle this week, the average price was $497, with the best Southwest deals starting from $379 round-trip. 4,246 users have rated Southwest on momondo, with an average score of 7.9/10.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Redmond
Kent
Lakewood
Puyallup
Tukwila
Cle Elum
Federal Way
Fife
Marysville
Centralia
Kirkland
Shoreline
Westport

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Manchester to Seattle for you.

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

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

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

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 Manchester to Seattle.

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

Price alerts on flights to Seattle from Manchester are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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