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$174+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$367
(American Airlines)

One-way from

$174
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$516
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. 19% potential increase in price ($134 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This American Airlines deal was found by Cheapflights users on 8/15. 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 9/1111:05 pmSEA - MHT
1 stop9h 09mAmerican Airlines
Sat 9/1312:38 pmMHT - SEA
1 stop10h 31mAmerican Airlines
Deal found 8/15$367
This Southwest deal was found by Cheapflights users on 8/17. 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.
Fri 9/269:10 pmSEA - MHT
1 stop8h 10mSouthwest
Mon 9/295:30 pmMHT - SEA
1 stop9h 35mSouthwest
Deal found 8/17$373
This American Airlines deal was found by Cheapflights users on 8/15. 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.
Fri 9/57:45 amSEA - MHT
1 stop10h 08mAmerican Airlines
Wed 9/106:00 amMHT - SEA
1 stop9h 00mAmerican Airlines
Deal found 8/15$387
This American Airlines deal was found by Cheapflights users on 8/17. 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 10/1412:34 amSEA - MHT
1 stop8h 20mAmerican Airlines
Tue 10/285:47 amMHT - SEA
2 stops14h 07mAmerican Airlines
Deal found 8/17$402
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/48:34 amSEA - MHT
1 stop10h 47mAmerican Airlines
Wed 9/173:22 pmMHT - SEA
1 stop10h 07mAmerican Airlines
Deal found 8/17$407
This American Airlines deal was found by Cheapflights users on 8/17. 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 10/1610:49 pmSEA - MHT
1 stop7h 47mAmerican Airlines
Mon 10/2712:25 pmMHT - SEA
1 stop11h 21mAmerican Airlines
Deal found 8/17$409

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 August 18, 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

Thu 9/11

11:05 pm-11:14 am

1 stop9h 09m

Manchester

Sat 9/13

12:38 pm-8:09 pm

1 stop10h 31m

$367

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 9/26

9:10 pm-8:20 am

1 stop8h 10m

Manchester

Mon 9/29

5:30 pm-12:05 am

1 stop9h 35m

$373

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 9/5

10:11 am-12:09 am

2 stops10h 58m

Manchester

Wed 9/10

6:00 am-12:00 pm

1 stop9h 00m

$392

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Tue 10/14

12:34 am-11:54 am

1 stop8h 20m

Manchester

Tue 10/28

5:47 am-4:54 pm

2 stops14h 07m

$402

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 9/4

8:34 am-10:21 pm

1 stop10h 47m

Manchester

Wed 9/17

3:22 pm-10:29 pm

1 stop10h 07m

$407

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Sun 8/31

6:10 am-5:08 pm

1 stop7h 58m

$174

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 9/19

5:35 pm-10:42 am

2 stops14h 07m

$214

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Sat 8/30

7:34 pm-10:42 am

2 stops12h 08m

$229

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Sat 8/30

5:35 am-9:13 pm

2 stops12h 38m

$229

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 10/9

4:20 pm-8:05 am

2 stops12h 45m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 13 results
1
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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 $395). 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 August 18, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and United 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
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Crew

8.5

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

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

    American Airlines, at $336, was found to be the cheapest airline from Seattle to Manchester, New Hampshire.Alternate airlines to your destination round-trip include United Airlines and Southwest. 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 $395). 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 4 airlines flying from Seattle to Manchester

Discover the top 4 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$336Average$536FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$412Average$536FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$487Average$846FlexibilityNo cancel feeOn-time75%

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