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$149+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MHT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$296
(American Airlines)

One-way from

$149
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$607
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. 16% potential increase in price ($117 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 9/46:05 amSEA - MHT
1 stop7h 49mAmerican Airlines
Wed 9/177:05 amMHT - SEA
1 stop16h 04mAmerican Airlines
Deal found 6/12$296
This United Airlines deal was found by Cheapflights users on 6/10. 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 7/3112:20 amSEA - MHT
2 stops11h 39mUnited Airlines
Wed 8/62:00 pmMHT - SEA
2 stops11h 59mUnited Airlines
Deal found 6/10$367
This Southwest deal was found by Cheapflights users on 6/12. 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 8/89:10 pmSEA - MHT
1 stop8h 10mSouthwest
Mon 8/115:30 pmMHT - SEA
1 stop9h 35mSouthwest
Deal found 6/12$406
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:00 amSEA - MHT
2 stops12h 41mAlaska Airlines
Tue 9/912:08 pmMHT - SEA
1 stop10h 48mAlaska Airlines
Deal found 6/12$452
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/15:30 pmSEA - MHT
2 stops21h 34mMultiple Airlines
Wed 8/66:44 pmMHT - SEA
3 stops31h 06mMultiple Airlines
Deal found 6/10$635

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 June 12, 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 9/4

6:05 am-4:54 pm

1 stop7h 49m

Manchester

Wed 9/17

7:05 am-8:09 pm

1 stop16h 04m

$296

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 7/31

12:20 am-2:59 pm

2 stops11h 39m

Manchester

Wed 8/6

2:00 pm-10:59 pm

2 stops11h 59m

$367

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 8/8

9:10 pm-8:20 am

1 stop8h 10m

Manchester

Mon 8/11

5:30 pm-12:05 am

1 stop9h 35m

$406

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 9/3

8:00 am-11:41 pm

2 stops12h 41m

Manchester

Tue 9/9

12:08 pm-7:56 pm

1 stop10h 48m

$452

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 8/1

5:30 pm-6:04 pm

2 stops21h 34m

Manchester

Wed 8/6

6:44 pm-10:50 pm

3 stops31h 06m

$635

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Wed 9/3

8:35 am-10:51 pm

1 stop11h 16m

$149

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 8/29

10:55 pm-10:42 am

1 stop8h 47m

$184

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Thu 7/10

6:30 pm-7:40 am

2 stops10h 10m

$214

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Fri 7/11

5:30 pm-6:04 pm

3 stops21h 34m

$367

SeattleManchester

SEA - MHT

SEAMHT

Seattle/Tacoma Intl

Mon 12/8

9:15 am-10:22 pm

1 stop10h 07m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 July is currently the most expensive (average of $399). 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.

What is the cheapest time of day to fly from SEA to MHT?

Find hourly flight availability from Seattle to Manchester. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Seattle to Manchester, New Hampshire at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

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 June 12, 2025.
Read through reviews of airlines operating flights from Seattle to Manchester, such as Alaska Airlines, Southwest and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 $296, 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 50% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Manchester, New Hampshire one-way?

    The cheapest airlines for a one-way flight from Seattle to Manchester, New Hampshire are American Airlines ($149), United Airlines ($184), and Southwest ($214).

  • 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 July is currently the most expensive (average of $399). 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$336Average$555FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$453FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$416Average$536FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$487Average$807FlexibilityNo cancel feeOn-time75%

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