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$140+ Cheap flights from Seattle to Manchester, NH (SEA - MHT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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Cheap flight deals from Seattle to Manchester

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Manchester (MHT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$318
(American Airlines)

One-way from

$140
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$478
Provider with most accurate pricing for Seattle/Tacoma Intl-Manchester flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Manchester flights.
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From Seattle/Tacoma Intl to Manchester
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One-way flight from Seattle/Tacoma Intl to Manchester
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Highest demand for flights based on searches. 17% potential increase in price ($115 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Seattle to Manchester

Cheapest flights from Seattle to Manchester
Explore the most affordable flight options available from Seattle to Manchester. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 2, 2025.

This American Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:20 pmSEA - MHT
1 stop8h 43mAmerican Airlines
Sat 11/155:43 amMHT - SEA
1 stop10h 10mAmerican Airlines
Deal found 10/2$318
This United Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:53 amSEA - MHT
2 stops9h 51mUnited Airlines
Thu 11/62:27 pmMHT - SEA
1 stop9h 27mUnited Airlines
Deal found 10/2$329
This American Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2112:34 amSEA - MHT
1 stop8h 22mAmerican Airlines
Wed 10/293:26 pmMHT - SEA
1 stop9h 50mAmerican Airlines
Deal found 10/2$408
This Southwest deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:35 amSEA - MHT
1 stop11h 30mSouthwest
Sun 12/216:45 amMHT - SEA
1 stop11h 30mSouthwest
Deal found 9/29$418
This American Airlines deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/210:07 pmSEA - MHT
1 stop9h 56mAmerican Airlines
Sun 11/94:04 pmMHT - SEA
1 stop9h 16mAmerican Airlines
Deal found 10/1$437
This American Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:39 amSEA - MHT
1 stop10h 17mAmerican Airlines
Thu 11/612:03 pmMHT - SEA
1 stop10h 41mAmerican Airlines
Deal found 10/2$466

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Manchester 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, Cheapflights users made 2,558,603 searches. Data last updated October 2, 2025.
Use the filters below to find and compare flights from Seattle to Manchester that are best for you.

Fly from

Seattle

Fly to

Manchester

Route

Depart

Return

Price

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 11/12

12:41 pm-11:48 pm

1 stop8h 07m

Manchester

Sat 11/15

5:43 am-12:53 pm

1 stop10h 10m

$318

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 10/30

10:53 am-11:44 pm

2 stops9h 51m

Manchester

Thu 11/6

2:27 pm-8:54 pm

1 stop9h 27m

$329

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 1/16

8:10 am-6:51 pm

1 stop7h 41m

Manchester

Sun 1/18

2:17 pm-8:57 pm

1 stop9h 40m

$416

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 12/16

6:35 am-9:05 pm

1 stop11h 30m

Manchester

Sun 12/21

6:45 am-3:15 pm

1 stop11h 30m

$418

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 10/22

10:54 pm-3:02 pm

2 stops13h 08m

Manchester

Wed 10/29

2:27 pm-12:59 am

2 stops13h 32m

$418

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Sun 11/2

10:07 pm-11:03 am

1 stop9h 56m

Manchester

Sun 11/9

4:04 pm-10:20 pm

1 stop9h 16m

$437

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 11/19

12:41 pm-11:48 pm

1 stop8h 07m

$140

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 10/21

10:54 pm-3:02 pm

2 stops13h 08m

$145

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Mon 10/20

6:39 pm-6:56 pm

2 stops45h 17m

$178

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 10/31

12:34 am-11:56 am

1 stop8h 22m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

Showing 1-10 of 14 results
1
2

Compare providers for flights from Seattle to Manchester

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Manchester in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Manchester, New Hampshire flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Manchester, New Hampshire flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Manchester, New Hampshire flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Manchester, New Hampshire flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Manchester, New Hampshire flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Manchester

Have a flexible travel schedule? Discover the best time to fly to Manchester from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Manchester

What is the cheapest month to book a flight from Seattle to Manchester, New Hampshire?

Currently, January is the cheapest month in which you can book a flight from Seattle to Manchester, New Hampshire (average of $334). Flying from Seattle to Manchester, New Hampshire in April is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Manchester

Get insights into the airlines that provide service to Manchester. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Manchester. Reviews last updated October 2, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and American Airlines from Seattle to Manchester to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,996 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
10,996 reviews
Alaska Airlines
8.0
Very good
10,996 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,996 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,033 reviews
Alaska Airlines
8.0
Very good
10,996 reviews

Comfort

7.8

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Manchester. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Seattle to Manchester, New Hampshire?

    Departing from Seattle to Manchester, New Hampshire will take you 8h 07m. Airlines will cover a distance of 2451 mi.

  • What are the cheapest airlines flying from Seattle to Manchester, New Hampshire round-trip?

    American Airlines, at $333, was found to be the cheapest airline from Seattle to Manchester, New Hampshire.Alternate airlines to your destination round-trip include Southwest and Alaska Airlines. American Airlines is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Seattle to Manchester that include hotel bookings?

    Yes. In addition to deals on Seattle to Manchester flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Manchester?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Manchester.

  • Can I find deals for business class flights from Seattle to Manchester?

    Yes. Cheapflights offers flight deals from Seattle to Manchester by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Manchester, New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Manchester, New Hampshire (average of $334). Flying from Seattle to Manchester, New Hampshire in April is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Manchester?

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

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Top 3 airlines flying from Seattle to Manchester

Discover the top 3 airlines that operate flights from Seattle to Manchester. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$333Average$581FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$377Average$517FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$487Average$746FlexibilityNo cancel feeOn-time75%

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