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

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SEA
Nov 1 — Nov 81
Sat 11/1
Sat 11/8
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Manchester to Seattle/Tacoma Intl are usually found in January or September, booked 61 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Manchester to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Manchester (MHT) to Seattle (SEA). 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

$338
(American Airlines)

One-way from

$140
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$500
Provider with most accurate pricing for Manchester-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Manchester-Seattle/Tacoma Intl flights.
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From Manchester to Seattle/Tacoma Intl
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One-way flight from Manchester to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 5% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 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 Manchester to Seattle

Cheapest flights from Manchester to Seattle
Explore the most affordable flight options available from Manchester to Seattle. 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 10/1. 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.
Sat 11/85:43 amMHT - SEA
1 stop10h 10mAmerican Airlines
Mon 11/1011:20 pmSEA - MHT
1 stop8h 43mAmerican Airlines
Deal found 10/1$338
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.
Fri 12/53:55 pmMHT - SEA
1 stop8h 55mAmerican Airlines
Mon 12/812:37 pmSEA - MHT
1 stop8h 14mAmerican Airlines
Deal found 10/1$357
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.
Fri 11/74:04 pmMHT - SEA
1 stop9h 16mAmerican Airlines
Mon 11/1011:20 pmSEA - MHT
1 stop8h 43mAmerican Airlines
Deal found 10/1$377
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/812:40 pmMHT - SEA
2 stops11h 20mSouthwest
Mon 11/105:55 pmSEA - MHT
2 stops11h 15mSouthwest
Deal found 10/1$386
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Sat 11/154:04 pmMHT - SEA
1 stop9h 16mAmerican Airlines
Sat 11/2211:20 pmSEA - MHT
1 stop8h 43mAmerican Airlines
Deal found 9/30$398
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/239:40 amMHT - SEA
1 stop9h 12mUnited Airlines
Wed 11/126:20 amSEA - MHT
2 stops14h 24mUnited Airlines
Deal found 10/1$404
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/72:05 pmMHT - SEA
2 stops13h 30mSouthwest
Mon 11/105:55 pmSEA - MHT
2 stops11h 15mSouthwest
Deal found 10/1$406

Cheapflights Fare Finder

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

Fly from

Manchester

Fly to

Seattle

Route

Depart

Return

Price

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 11/8

5:43 am-12:53 pm

1 stop10h 10m

Seattle/Tacoma Intl

Mon 11/10

11:20 pm-11:03 am

1 stop8h 43m

$338

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 12/5

5:46 am-3:24 pm

2 stops12h 38m

Seattle/Tacoma Intl

Mon 12/8

10:07 pm-11:07 am

1 stop10h 00m

$362

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 11/8

12:40 pm-9:00 pm

2 stops11h 20m

Seattle/Tacoma Intl

Mon 11/10

5:55 pm-8:10 am

2 stops11h 15m

$386

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 11/7

2:05 pm-12:35 am

2 stops13h 30m

Seattle/Tacoma Intl

Mon 11/10

5:55 pm-8:10 am

2 stops11h 15m

$406

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Wed 10/15

3:26 pm-10:16 pm

1 stop9h 50m

Seattle/Tacoma Intl

Wed 10/22

10:39 am-11:56 pm

1 stop10h 17m

$408

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 10/23

9:40 am-9:34 pm

2 stops14h 54m

Seattle/Tacoma Intl

Wed 11/12

6:20 am-11:44 pm

2 stops14h 24m

$409

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 12/5

3:55 pm-9:50 pm

1 stop8h 55m

Seattle/Tacoma Intl

Sun 12/14

10:58 pm-11:07 am

1 stop9h 09m

$416

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 10/23

9:40 am-3:52 pm

1 stop9h 12m

Seattle/Tacoma Intl

Mon 11/10

10:53 am-11:44 pm

2 stops9h 51m

$424

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 3/3

3:00 pm-12:57 am

2 stops12h 57m

Seattle/Tacoma Intl

Wed 3/4

11:47 pm-12:01 pm

1 stop9h 14m

$424

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 12/5

12:55 pm-10:55 pm

2 stops13h 00m

Seattle/Tacoma Intl

Sun 12/14

5:35 am-9:05 pm

2 stops12h 30m

$426

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/1

Showing 1-10 of 20 results
1
2

Compare providers for flights from Manchester to Seattle

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 Manchester to Seattle in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Manchester, New Hampshire-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Manchester, New Hampshire-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Manchester, New Hampshire-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Manchester, New Hampshire-Seattle 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 Manchester, New Hampshire-Seattle 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 Manchester to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Manchester 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 Manchester to Seattle

How far ahead should I book a flight from Manchester, New Hampshire to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Manchester to Seattle. Price data was last updated on September 26, 2025.

To ensure you get the cheapest price possible for a flight from Manchester, New Hampshire to Seattle, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Manchester, New Hampshire to Seattle (average of $238). Flying from Manchester, New Hampshire to Seattle in June is currently the most expensive (average of $388). 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 MHT to SEA?

Find hourly flight availability from Manchester to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 2, 2025.

A simple way to save on the total cost of your ticket is to fly from Manchester, New Hampshire to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated October 2, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Manchester to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,933 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,033 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Manchester to Seattle. 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 Manchester, New Hampshire to Seattle?

    There are many flights that can get you from Manchester, New Hampshire to Seattle in 10h 10m. Fly via American Airlines or Southwest to get the fastest option. The distance from Manchester, New Hampshire to Seattle is about 2451 mi. This flight may include one or multiple stops.

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

    Currently priced at $342, United Airlines will fly you from Manchester, New Hampshire to Seattle and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Southwest - these airlines can fly you to your destination from $345 and $379, respectively. These flights start at 33% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Manchester, New Hampshire to Seattle are American Airlines ($140), Southwest ($203), and Alaska Airlines ($261).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Manchester to Seattle 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 Manchester, New Hampshire to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Manchester, New Hampshire to Seattle (average of $238). Flying from Manchester, New Hampshire to Seattle in June is currently the most expensive (average of $388). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Manchester to Seattle

Discover the top 3 airlines that operate flights from Manchester to Seattle. 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
United AirlinesCheapest$342Average$422FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$345Average$549FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$379Average$481FlexibilityNo cancel feeOn-time63%

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