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Cheap flights from Manchester, New Hampshire to Seattle from $180

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 4/16. 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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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
2:30 pm - 8:53 pm
MHT
-
SEA
9h 23m
1 stop
United Airlines Logo
8:00 am - 6:56 pm
SEA
-
MHT
7h 56m
1 stop
$373United Airlines
Sat, Apr 4 - Sat, Apr 18
United Airlines Logo
2:30 pm - 8:53 pm
MHT
-
SEA
9h 23m
1 stop
United Airlines Logo
5:00 am - 6:56 pm
SEA
-
MHT
10h 56m
2 stops
$378United Airlines
Sat, Apr 4 - Sat, Apr 18
United Airlines Logo
2:30 pm - 11:59 pm
MHT
-
SEA
12h 29m
2 stops
United Airlines Logo
5:00 am - 6:56 pm
SEA
-
MHT
10h 56m
2 stops
$384United Airlines
Sat, Apr 4 - Sat, Apr 18
American Airlines Logo
5:41 pm - 12:36 am
MHT
-
SEA
9h 55m
1 stop
American Airlines Logo
11:16 am - 10:51 pm
SEA
-
MHT
8h 35m
1 stop
$402American Airlines
Fri, Apr 10 - Tue, Apr 14
American Airlines Logo
6:00 am - 11:34 am
MHT
-
SEA
8h 34m
1 stop
American Airlines Logo
11:16 am - 10:51 pm
SEA
-
MHT
8h 35m
1 stop
$408American Airlines
Sat, Apr 11 - Thu, Apr 16
Southwest Logo
7:10 pm - 12:05 am
MHT
-
SEA
7h 55m
1 stop
Southwest Logo
6:15 pm - 8:00 am
SEA
-
MHT
10h 45m
2 stops
$423Southwest
Fri, Apr 24 - Fri, May 1
American Airlines Logo
5:41 pm - 12:36 am
MHT
-
SEA
9h 55m
1 stop
American Airlines Logo
11:16 am - 10:51 pm
SEA
-
MHT
8h 35m
1 stop
$425American Airlines
Sat, Apr 11 - Thu, Apr 16
American Airlines Logo
5:10 pm - 10:59 pm
MHT
-
SEA
8h 49m
1 stop
American Airlines Logo
10:27 am - 11:33 pm
SEA
-
MHT
10h 06m
1 stop
$437American Airlines
Sat, May 30 - Tue, Jun 2
Southwest Logo
3:55 pm - 12:20 am
MHT
-
SEA
11h 25m
2 stops
Southwest Logo
11:05 pm - 10:50 am
SEA
-
MHT
8h 45m
1 stop
$442Southwest
Tue, Jun 23 - Tue, Jun 30
American Airlines Logo
7:30 pm - 1:01 am
MHT
-
SEA
8h 31m
1 stop
American Airlines Logo
8:20 am - 7:05 pm
SEA
-
MHT
7h 45m
1 stop
$445American Airlines
Thu, Aug 13 - Mon, Aug 24

American Airlines flights from Manchester, New Hampshire to Seattle

Our best American Airlines deals on Manchester, New Hampshire to Seattle flight tickets
American Airlines
Apr 10
MHT5:41 pmManchester
9h 55m
1 stop
SEA12:36 amSeattle/Tacoma Intl
Apr 14
SEA11:16 amSeattle/Tacoma Intl
8h 35m
1 stop
MHT10:51 pmManchester
$402
American Airlines
Apr 11
MHT6:00 amManchester
8h 34m
1 stop
SEA11:34 amSeattle/Tacoma Intl
Apr 16
SEA11:16 amSeattle/Tacoma Intl
8h 35m
1 stop
MHT10:51 pmManchester
$408
American Airlines
Apr 11
MHT5:41 pmManchester
9h 55m
1 stop
SEA12:36 amSeattle/Tacoma Intl
Apr 16
SEA11:16 amSeattle/Tacoma Intl
8h 35m
1 stop
MHT10:51 pmManchester
$425

United Airlines flights from Manchester, New Hampshire to Seattle

Our best United Airlines deals on Manchester, New Hampshire to Seattle flight tickets
United Airlines
Apr 4
MHT2:30 pmManchester
9h 23m
1 stop
SEA8:53 pmSeattle/Tacoma Intl
Apr 18
SEA8:00 amSeattle/Tacoma Intl
7h 56m
1 stop
MHT6:56 pmManchester
$373
United Airlines
Apr 4
MHT2:30 pmManchester
9h 23m
1 stop
SEA8:53 pmSeattle/Tacoma Intl
Apr 18
SEA5:00 amSeattle/Tacoma Intl
10h 56m
2 stops
MHT6:56 pmManchester
$378
United Airlines
Apr 4
MHT2:30 pmManchester
12h 29m
2 stops
SEA11:59 pmSeattle/Tacoma Intl
Apr 18
SEA5:00 amSeattle/Tacoma Intl
10h 56m
2 stops
MHT6:56 pmManchester
$384

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 March 1, 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

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 4/4

2:30 pm-8:53 pm

1 stop9h 23m

Seattle/Tacoma Intl

Sat 4/18

8:00 am-6:56 pm

1 stop7h 56m

$373

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 4/4

2:30 pm-8:53 pm

1 stop9h 23m

Seattle/Tacoma Intl

Sat 4/18

5:00 am-6:56 pm

2 stops10h 56m

$378

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 4/4

2:30 pm-11:59 pm

2 stops12h 29m

Seattle/Tacoma Intl

Sat 4/18

5:00 am-6:56 pm

2 stops10h 56m

$384

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 4/10

5:41 pm-12:36 am

1 stop9h 55m

Seattle/Tacoma Intl

Tue 4/14

11:16 am-10:51 pm

1 stop8h 35m

$402

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 4/11

6:00 am-11:34 am

1 stop8h 34m

Seattle/Tacoma Intl

Thu 4/16

11:16 am-10:51 pm

1 stop8h 35m

$408

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 4/24

7:10 pm-12:05 am

1 stop7h 55m

Seattle/Tacoma Intl

Fri 5/1

6:15 pm-8:00 am

2 stops10h 45m

$423

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 4/11

5:41 pm-12:36 am

1 stop9h 55m

Seattle/Tacoma Intl

Thu 4/16

11:16 am-10:51 pm

1 stop8h 35m

$425

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 5/30

5:10 pm-10:59 pm

1 stop8h 49m

Seattle/Tacoma Intl

Tue 6/2

10:27 am-11:33 pm

1 stop10h 06m

$437

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 6/23

3:55 pm-12:20 am

2 stops11h 25m

Seattle/Tacoma Intl

Tue 6/30

11:05 pm-10:50 am

1 stop8h 45m

$442

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 8/13

7:30 pm-1:01 am

1 stop8h 31m

Seattle/Tacoma Intl

Mon 8/24

8:20 am-7:05 pm

1 stop7h 45m

$445

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, 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 $416. 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 $427.

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 $404. 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 $504.

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 $361 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $466. 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 $503 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 $385 on momondo.

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

You could potentially save up to 2% 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

  • 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
11,373 reviews
Search American Airlines flights
United AirlinesPriceFrom $342Free CancellationRating
7.4
9,372 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $347Free CancellationRating
8.0
11,973 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $379Free CancellationRating
8.0
4,305 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
Marysville
Redmond
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Fife
Westport
Kirkland
Centralia
Tumwater

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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