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$190+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — SEA
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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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 September 17, 2025.

Round-trip from

$334
(American Airlines)

One-way from

$190
(American Airlines)

Popular in

December

Cheapest in

January

Average price

$416
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. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/124:04 pmMHT - SEA
1 stop9h 16mAmerican Airlines
Sat 11/1511:20 pmSEA - MHT
1 stop8h 43mAmerican Airlines
Deal found 9/17$334
This Southwest deal was found by Cheapflights users on 9/17. 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.
Wed 11/1212:55 pmMHT - SEA
2 stops12h 35mSouthwest
Sat 11/155:45 amSEA - MHT
2 stops10h 15mSouthwest
Deal found 9/17$344
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/2412:26 pmMHT - SEA
1 stop11h 20mAmerican Airlines
Wed 10/2911:31 amSEA - MHT
1 stop9h 25mAmerican Airlines
Deal found 9/16$348
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/511:29 amMHT - SEA
2 stops12h 10mAmerican Airlines
Fri 11/711:20 pmSEA - MHT
1 stop8h 43mAmerican Airlines
Deal found 9/17$353
This American Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/153:26 pmMHT - SEA
1 stop9h 50mAmerican Airlines
Tue 10/2112:34 amSEA - MHT
1 stop8h 22mAmerican Airlines
Deal found 9/17$382
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/77:34 pmMHT - SEA
1 stop17h 15mAmerican Airlines
Fri 10/1712:34 amSEA - MHT
1 stop8h 22mAmerican Airlines
Deal found 9/16$423
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/1112:52 pmMHT - SEA
2 stops10h 54mAmerican Airlines
Mon 10/1311:56 pmSEA - MHT
1 stop8h 26mAmerican Airlines
Deal found 9/16$429
This Southwest deal was found by Cheapflights users on 9/16. 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 10/245:25 amMHT - SEA
2 stops12h 35mSouthwest
Wed 10/298:35 amSEA - MHT
2 stops9h 45mSouthwest
Deal found 9/16$437

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 September 17, 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

Wed 11/12

4:04 pm-10:20 pm

1 stop9h 16m

Seattle/Tacoma Intl

Sat 11/15

7:23 am-10:21 pm

2 stops11h 58m

$339

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Wed 11/5

11:29 am-8:39 pm

2 stops12h 10m

Seattle/Tacoma Intl

Fri 11/7

11:20 pm-11:03 am

1 stop8h 43m

$353

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 10/24

3:26 pm-10:16 pm

1 stop9h 50m

Seattle/Tacoma Intl

Tue 10/28

12:34 am-3:00 pm

2 stops11h 26m

$370

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Tue 10/7

7:34 pm-9:49 am

1 stop17h 15m

Seattle/Tacoma Intl

Sat 10/18

10:54 pm-9:36 am

1 stop7h 42m

$423

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 10/11

12:52 pm-8:46 pm

2 stops10h 54m

Seattle/Tacoma Intl

Mon 10/13

11:56 pm-11:22 am

1 stop8h 26m

$429

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 10/24

9:40 am-3:52 pm

1 stop9h 12m

Seattle/Tacoma Intl

Wed 10/29

8:36 am-11:44 pm

2 stops12h 08m

$432

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 10/24

5:25 am-3:00 pm

2 stops12h 35m

Seattle/Tacoma Intl

Wed 10/29

8:35 am-9:20 pm

2 stops9h 45m

$437

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Wed 11/5

12:55 pm-10:30 pm

2 stops12h 35m

Seattle/Tacoma Intl

Fri 11/7

5:55 pm-8:10 am

2 stops11h 15m

$448

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Fri 10/17

5:10 pm-10:56 pm

1 stop8h 46m

$190

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Wed 11/19

2:27 pm-8:54 pm

1 stop9h 27m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 16 results
1
2

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 12, 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 $387). 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 September 17, 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 September 17, 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
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

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 9h 16m. Fly via American Airlines to get the fastest option. The distance from Manchester, New Hampshire to Seattle is about 2451 mi.

  • 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 32% lower than the current average price 3 months from now.

  • 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 $387). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$342Average$416FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$345Average$549FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$379Average$476FlexibilityNo cancel feeOn-time63%

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