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Cheap flights from Manchester, New Hampshire to Seattle from $205

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 12/5. 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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Find the cheapest flights from Manchester, New Hampshire to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:17 pm - 8:57 pmMHT-SEA
9h 40m1 stop
United Airlines Logo
8:10 am - 6:51 pmSEA-MHT
7h 41m1 stop
$330United Airlines
Find Deal
Tue, Jan 20 - Thu, Jan 22
United Airlines Logo
2:17 pm - 12:59 amMHT-SEA
13h 42m2 stops
United Airlines Logo
8:10 am - 6:51 pmSEA-MHT
7h 41m1 stop
$335United Airlines
Find Deal
Tue, Jan 20 - Thu, Jan 22
United Airlines Logo
2:17 pm - 12:59 amMHT-SEA
13h 42m2 stops
United Airlines Logo
5:00 am - 6:51 pmSEA-MHT
10h 51m2 stops
$340United Airlines
Find Deal
Tue, Jan 20 - Thu, Jan 22
American Airlines Logo
4:11 pm - 10:01 pmMHT-SEA
8h 50m1 stop
American Airlines Logo
11:06 pm - 11:12 amSEA-MHT
9h 06m1 stop
$451American Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
American Airlines Logo
10:57 am - 10:17 pmMHT-SEA
14h 20m2 stops
American Airlines Logo
11:06 pm - 11:12 amSEA-MHT
9h 06m1 stop
$456American Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
American Airlines Logo
5:23 am - 3:58 pmMHT-SEA
13h 35m2 stops
American Airlines Logo
7:15 am - 12:06 amSEA-MHT
13h 51m2 stops
$461American Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 4
Southwest Logo
2:05 pm - 12:30 amMHT-SEA
13h 25m2 stops
Southwest Logo
6:45 am - 11:00 pmSEA-MHT
13h 15m1 stop
$519Southwest
Find Deal
Fri, Nov 21 - Tue, Nov 25
Alaska Airlines Logo
4:20 pm - 9:47 pmMHT-SEA
8h 27m1 stop
Alaska Airlines Logo
8:00 am - 11:42 pmSEA-MHT
12h 42m2 stops
$542Alaska Airlines
Find Deal
Thu, Mar 12 - Tue, Mar 17
Southwest Logo
12:30 pm - 12:05 amMHT-SEA
14h 35m2 stops
Southwest Logo
6:15 am - 11:00 pmSEA-MHT
13h 45m2 stops
$543Southwest
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Fri, Nov 21 - Tue, Nov 25
Alaska Airlines Logo
12:32 pm - 10:24 pmMHT-SEA
12h 52m2 stops
Alaska Airlines Logo
8:00 am - 11:42 pmSEA-MHT
12h 42m2 stops
$677Alaska Airlines
Find Deal
Thu, Mar 12 - Tue, Mar 17

United Airlines flights from Manchester, New Hampshire to Seattle

Our best United Airlines deals on Manchester, New Hampshire to Seattle flight tickets
United Airlines
Jan 20
MHT2:17 pmManchester
9h 40m
1 stop
SEA8:57 pmSeattle/Tacoma Intl
Jan 22
SEA8:10 amSeattle/Tacoma Intl
7h 41m
1 stop
MHT6:51 pmManchester
$330
Find similar
United Airlines
Jan 20
MHT2:17 pmManchester
13h 42m
2 stops
SEA12:59 amSeattle/Tacoma Intl
Jan 22
SEA8:10 amSeattle/Tacoma Intl
7h 41m
1 stop
MHT6:51 pmManchester
$335
Find similar
United Airlines
Jan 20
MHT2:17 pmManchester
13h 42m
2 stops
SEA12:59 amSeattle/Tacoma Intl
Jan 22
SEA5:00 amSeattle/Tacoma Intl
10h 51m
2 stops
MHT6:51 pmManchester
$340
Find similar

Alaska Airlines flights from Manchester, New Hampshire to Seattle

Our best Alaska Airlines deals on Manchester, New Hampshire to Seattle flight tickets
Alaska Airlines
Mar 12
MHT4:20 pmManchester
8h 27m
1 stop
SEA9:47 pmSeattle/Tacoma Intl
Mar 17
SEA8:00 amSeattle/Tacoma Intl
12h 42m
2 stops
MHT11:42 pmManchester
$542
Find similar
Alaska Airlines
Mar 12
MHT12:32 pmManchester
12h 52m
2 stops
SEA10:24 pmSeattle/Tacoma Intl
Mar 17
SEA8:00 amSeattle/Tacoma Intl
12h 42m
2 stops
MHT11:42 pmManchester
$677
Find similar
Alaska Airlines
Mar 12
MHT12:32 pmManchester
12h 52m
2 stops
SEA10:24 pmSeattle/Tacoma Intl
Mar 17
SEA8:00 amSeattle/Tacoma Intl
12h 42m
2 stops
MHT11:42 pmManchester
$717
Find similar

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 October 30, 2025.
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

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 1/20

2:17 pm-8:57 pm

1 stop9h 40m

Seattle/Tacoma Intl

Thu 1/22

8:10 am-6:51 pm

1 stop7h 41m

$330

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 1/20

2:17 pm-12:59 am

2 stops13h 42m

Seattle/Tacoma Intl

Thu 1/22

8:10 am-6:51 pm

1 stop7h 41m

$335

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 1/20

2:17 pm-12:59 am

2 stops13h 42m

Seattle/Tacoma Intl

Thu 1/22

5:00 am-6:51 pm

2 stops10h 51m

$340

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 3/3

4:11 pm-10:01 pm

1 stop8h 50m

Seattle/Tacoma Intl

Wed 3/4

11:06 pm-11:12 am

1 stop9h 06m

$451

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 3/3

10:57 am-10:17 pm

2 stops14h 20m

Seattle/Tacoma Intl

Wed 3/4

11:06 pm-11:12 am

1 stop9h 06m

$456

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 3/3

5:23 am-3:58 pm

2 stops13h 35m

Seattle/Tacoma Intl

Wed 3/4

7:15 am-12:06 am

2 stops13h 51m

$461

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 11/21

2:05 pm-12:30 am

2 stops13h 25m

Seattle/Tacoma Intl

Tue 11/25

6:45 am-11:00 pm

1 stop13h 15m

$519

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 3/12

4:20 pm-9:47 pm

1 stop8h 27m

Seattle/Tacoma Intl

Tue 3/17

8:00 am-11:42 pm

2 stops12h 42m

$542

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 11/21

12:30 pm-12:05 am

2 stops14h 35m

Seattle/Tacoma Intl

Tue 11/25

6:15 am-11:00 pm

2 stops13h 45m

$543

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 3/12

12:32 pm-10:24 pm

2 stops12h 52m

Seattle/Tacoma Intl

Tue 3/17

8:00 am-11:42 pm

2 stops12h 42m

$677

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 cheapest month to fly to Seattle?

In general, January 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 $416. If you don’t want to visit Seattle in January, then you should wait until September to fly from Manchester, New Hampshire, when ticket prices are also cheap, with an average price of $416.

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 $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 Manchester, New Hampshire because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $499.

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

Flying to Seattle from Manchester, New Hampshire in the evening is the least expensive time of day to depart. momondo users have found prices as low as $311 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.

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

You are more likely to see cheaper flights to Seattle from Manchester, New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $510 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Manchester, New Hampshire for as low as $381 on momondo.

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

You could potentially save up to 29% 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

Direct flights

None
There are no direct flights from Manchester, New Hampshire to Seattle. There are no popular flight routes from Manchester, New Hampshire to Seattle.
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  • 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 8h 27m.

  • 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
United AirlinesPriceFrom $342Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $344Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
SouthwestPriceFrom $379Free CancellationRating
8.0
4,243 reviews
Search Southwest flights

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
Kent
Puyallup
Marysville
Redmond
Tukwila
Federal Way
Lakewood
Cle Elum
Fife
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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