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

Currently priced at $347, American Airlines will fly you from Manchester, New Hampshire to Seattle and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and United Airlines - these airlines can fly you to your destination from $351 and $407, respectively. These flights start at 36% 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 ($180), United Airlines ($224), and Alaska Airlines ($429).

What is the cheapest day to fly from Manchester, New Hampshire to Seattle?

Travelers seeking maximum savings on their Manchester, New Hampshire to Seattle flight should consider departing on Sunday afternoons when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Manchester, New Hampshire to Seattle?

When booking a flight from Manchester, New Hampshire to Seattle, you may want to consider flying on American Airlines, United Airlines or Southwest as they are the most popular for this route.

What is the cheapest day to fly round-trip from Manchester, New Hampshire to Seattle?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 39% on the overall cost on flights from Manchester, New Hampshire to Seattle.

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

To save on the cost of your flight from Manchester, New Hampshire to Seattle, book at least 32 days before your planned departure. Booking around this time can save you about 39% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $366 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $572.

What is the cheapest month to fly from Manchester, New Hampshire to Seattle?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to Seattle. Flights to Seattle from Manchester, New Hampshire in January are about $363 on average during January, but can be found for as low as $98.

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 eDreams the most. eDreams 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.

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.

$180+ Flights from Manchester, NH to Seattle

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Find cheap flights from Manchester to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Manchester to Seattle/Tacoma Intl are usually found in January or September, booked 48 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Manchester to Seattle

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$347 (American Airlines)
One-way from	$180 (American Airlines)
Popular in	July
Cheapest in	January
Average price	$546

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.

Search Deals

From Manchester to Seattle/Tacoma Intl

Search Deals

One-way flight from Manchester to Seattle/Tacoma Intl

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($68 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in May 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 May 12, 2025.

Thu 5/297:20 amMHT - SEA

1 stop8h 27mAmerican Airlines

Thu 5/2911:59 pmSEA - MHT

1 stop8h 52mAmerican Airlines

Deal found 5/10

$347

Wed 9/35:40 pmMHT - SEA

1 stop8h 55mSouthwest

Mon 9/89:10 pmSEA - MHT

1 stop8h 00mSouthwest

Deal found 5/11

$351

Thu 5/299:40 amMHT - SEA

2 stops12h 17mUnited Airlines

Thu 5/2911:50 pmSEA - MHT

2 stops12h 14mUnited Airlines

Deal found 5/10

$407

Mon 11/312:28 pmMHT - SEA

2 stops12h 56mAlaska Airlines

Sat 11/89:15 amSEA - MHT

1 stop10h 14mAlaska Airlines

Deal found 5/11

$742

Best flights from Manchester to Seattle
Discover carefully curated flight deals from Manchester to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2025.

Thu 5/297:20 amMHT - SEA

1 stop8h 27mAmerican Airlines

Thu 5/2911:59 pmSEA - MHT

1 stop8h 52mAmerican Airlines

Deal found 5/10

$347

Wed 9/35:40 pmMHT - SEA

1 stop8h 55mSouthwest

Mon 9/89:10 pmSEA - MHT

1 stop8h 00mSouthwest

Deal found 5/11

$351

Thu 5/299:40 amMHT - SEA

2 stops12h 17mUnited Airlines

Thu 5/2911:50 pmSEA - MHT

2 stops12h 14mUnited Airlines

Deal found 5/10

$407

Mon 11/312:28 pmMHT - SEA

2 stops12h 56mAlaska Airlines

Sat 11/89:15 amSEA - MHT

1 stop10h 14mAlaska Airlines

Deal found 5/11

$742

Last-minute flights from Manchester to Seattle
Discover last-minute flight deals from Manchester to Seattle. Data last updated May 12, 2025 and is based on user searches.

Mon 5/262:08 pmMHT - SEA

1 stop8h 48mAlaska Airlines

Fri 5/308:05 amSEA - MHT

2 stops12h 39mAlaska Airlines

Deal found 5/11

$772

Thu 5/297:20 amMHT - SEA

1 stop8h 27mAmerican Airlines

Thu 5/2911:59 pmSEA - MHT

1 stop8h 52mAmerican Airlines

Deal found 5/10

$347

Thu 5/299:40 amMHT - SEA

2 stops12h 17mUnited Airlines

Thu 5/2911:50 pmSEA - MHT

2 stops12h 14mUnited Airlines

Deal found 5/10

$407

Thu 6/126:20 amMHT - SEA

1 stop8h 55mSouthwest

Thu 6/129:10 pmSEA - MHT

1 stop7h 30mSouthwest

Deal found 5/11

$523

One-way flights from Manchester to Seattle
Search for one-way flight options from Manchester to Seattle. Find affordable one-way fares based on user searches. Data last updated May 12, 2025.

Mon 6/912:10 pmMHT - SEA

1 stop11h 40mAmerican Airlines

Deal found 5/11

$180

Thu 5/2912:45 pmMHT - SEA

1 stop10h 56mUnited Airlines

Deal found 5/11

$224

Sat 6/1412:12 pmMHT - SEA

1 stop10h 48mAlaska Airlines

Deal found 5/11

$429

Cheapflights Fare Finder

Use the filters below to find and compare flights from Manchester to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 5/29

7:20 am-12:47 pm

1 stop8h 27m

Seattle/Tacoma Intl

Thu 5/29

11:59 pm-11:51 am

1 stop8h 52m

$347

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Wed 9/3

5:40 pm-11:35 pm

1 stop8h 55m

Seattle/Tacoma Intl

Mon 9/8

9:10 pm-8:10 am

1 stop8h 00m

$351

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 5/29

9:40 am-6:57 pm

2 stops12h 17m

Seattle/Tacoma Intl

Thu 5/29

11:50 pm-3:04 pm

2 stops12h 14m

$407

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Mon 11/3

12:28 pm-10:24 pm

2 stops12h 56m

Seattle/Tacoma Intl

Sat 11/8

9:15 am-10:29 pm

1 stop10h 14m

$742

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Mon 6/9

12:10 pm-8:50 pm

1 stop11h 40m

$180

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Thu 5/29

12:45 pm-8:41 pm

1 stop10h 56m

$224

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

Sat 6/14

12:12 pm-8:00 pm

1 stop10h 48m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Compare providers for flights from Manchester to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Manchester to Seattle in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy2 stars	Trust 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 eDreams the most. eDreams 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?

To ensure you get the cheapest price possible for a flight from Manchester, New Hampshire to Seattle, you should look to book at least 47 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 July is currently the most expensive (average of $403). 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?

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.

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,290 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,724 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What are the cheapest airlines flying from Manchester, New Hampshire to Seattle round-trip?
Currently priced at $347, American Airlines will fly you from Manchester, New Hampshire to Seattle and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and United Airlines - these airlines can fly you to your destination from $351 and $407, respectively. These flights start at 36% 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 ($180), United Airlines ($224), and Alaska Airlines ($429).
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 July is currently the most expensive (average of $403). 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.

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Other flights to Seattle

Top 3 airlines flying from Manchester to Seattle

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$376	Average$597	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$401	Average$481	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$432	Average$546	FlexibilityNo cancel fee	On-time63%

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$180+ 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Manchester to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Manchester to Seattle/Tacoma Intl are usually found in January or September, booked 48 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Manchester to Seattle

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Manchester to Seattle

Cheapest flights from Manchester to SeattleExplore 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 May 12, 2025.

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 May 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Manchester to Seattle that are best for you.

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 May.

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.

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 May 9, 2025.

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

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 May 12, 2025.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

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.

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

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

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

How can I find direct flights from Manchester to Seattle?

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

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

Traveling to a place near Manchester?

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Alternative routes for Manchester to Seattle

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Top 3 airlines flying from Manchester to Seattle

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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 May 12, 2025.