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

Currently priced at $390, Southwest will fly you from Manchester, New Hampshire to Seattle and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $410 and $452, respectively. These flights start at 29% lower than the current average price 3 months from now.

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 16 days before your planned departure. Booking around this time can save you about 36% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $355 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $587.

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 $364 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.

$172+ Flights from Manchester, NH to Seattle

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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

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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	$390 (Southwest)
One-way from	$172 (American Airlines)
Popular in	July
Cheapest in	January
Average price	$586

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 ($71 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 April 2025

Search Deals

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 abril 29, 2025.

mié. 9/105:10 pmMHT - SEA

1 stop8h 40mAmerican Airlines

mié. 9/1710:46 amSEA - MHT

1 stop10h 33mAmerican Airlines

Deal found 4/28

$307

lun. 6/97:10 pmMHT - SEA

1 stop8h 40mSouthwest

vie. 6/131:15 pmSEA - MHT

1 stop7h 05mSouthwest

Deal found 4/28

$390

jue. 8/76:45 pmMHT - SEA

1 stop9h 11mUnited Airlines

mié. 8/1312:20 amSEA - MHT

2 stops11h 39mUnited Airlines

Deal found 4/28

$448

lun. 11/32:00 pmMHT - SEA

2 stops11h 24mAlaska Airlines

sáb. 11/89:15 amSEA - MHT

1 stop10h 14mAlaska Airlines

Deal found 4/28

$672

sáb. 6/216:46 pmMHT - SEA

2 stops31h 04mMultiple Airlines

dom. 6/293:58 pmSEA - MHT

3 stops19h 56mMultiple Airlines

Deal found 4/28

$1,028

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 abril 29, 2025.

lun. 6/97:10 pmMHT - SEA

1 stop8h 40mSouthwest

vie. 6/131:15 pmSEA - MHT

1 stop7h 05mSouthwest

Deal found 4/28

$390

sáb. 5/243:47 pmMHT - SEA

1 stop9h 03mAmerican Airlines

lun. 5/2611:59 pmSEA - MHT

1 stop8h 52mAmerican Airlines

Deal found 4/28

$410

mar. 7/19:40 amMHT - SEA

1 stop9h 13mUnited Airlines

mar. 7/1510:05 pmSEA - MHT

1 stop9h 39mUnited Airlines

Deal found 4/27

$452

mar. 5/132:08 pmMHT - SEA

2 stops10h 31mAlaska Airlines

sáb. 5/179:40 amSEA - MHT

1 stop10h 13mAlaska Airlines

Deal found 4/28

$742

sáb. 6/216:46 pmMHT - SEA

2 stops31h 04mMultiple Airlines

dom. 6/293:58 pmSEA - MHT

3 stops19h 56mMultiple Airlines

Deal found 4/28

$1,028

Last-minute flights from Manchester to Seattle
Discover last-minute flight deals from Manchester to Seattle. Data last updated abril 29, 2025 and is based on user searches.

mié. 5/712:25 pmMHT - SEA

1 stop8h 03mAmerican Airlines

sáb. 5/1011:59 pmSEA - MHT

1 stop8h 52mAmerican Airlines

Deal found 4/28

$695

mié. 5/712:50 pmMHT - SEA

2 stops15h 09mUnited Airlines

sáb. 5/105:40 pmSEA - MHT

2 stops14h 03mUnited Airlines

Deal found 4/28

$805

jue. 5/85:35 amMHT - SEA

2 stops12h 30mSouthwest

sáb. 5/106:15 amSEA - MHT

2 stops14h 00mSouthwest

Deal found 4/28

$792

mar. 5/132:08 pmMHT - SEA

2 stops10h 31mAlaska Airlines

sáb. 5/179:40 amSEA - MHT

1 stop10h 13mAlaska Airlines

Deal found 4/28

$742

sáb. 5/243:47 pmMHT - SEA

1 stop9h 03mAmerican Airlines

lun. 5/2611:59 pmSEA - MHT

1 stop8h 52mAmerican Airlines

Deal found 4/28

$410

sáb. 5/2410:00 amMHT - SEA

2 stops11h 53mUnited Airlines

lun. 5/2611:50 pmSEA - MHT

2 stops12h 14mUnited Airlines

Deal found 4/28

$480

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 abril 29, 2025.

lun. 6/95:09 pmMHT - SEA

1 stop10h 08mAmerican Airlines

Deal found 4/28

$172

mié. 5/219:45 amMHT - SEA

2 stops15h 57mUnited Airlines

Deal found 4/27

$209

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

lun. 6/9

7:10 pm-12:50 am

1 stop8h 40m

Seattle/Tacoma Intl

vie. 6/13

1:15 pm-11:20 pm

1 stop7h 05m

$390

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

sáb. 5/24

3:47 pm-9:50 pm

1 stop9h 03m

Seattle/Tacoma Intl

lun. 5/26

11:59 pm-11:51 am

1 stop8h 52m

$410

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

mar. 7/1

9:40 am-3:53 pm

1 stop9h 13m

Seattle/Tacoma Intl

mar. 7/15

10:05 pm-10:44 am

1 stop9h 39m

$452

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

mar. 5/13

2:08 pm-9:39 pm

2 stops10h 31m

Seattle/Tacoma Intl

sáb. 5/17

9:40 am-10:53 pm

1 stop10h 13m

$742

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

sáb. 6/21

6:46 pm-10:50 pm

2 stops31h 04m

Seattle/Tacoma Intl

dom. 6/29

3:58 pm-2:54 pm

3 stops19h 56m

$1,028

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

lun. 6/9

5:09 pm-12:17 am

1 stop10h 08m

$172

ManchesterSeattle

MHT - SEA

MHTSEA

Manchester

mié. 5/21

9:45 am-10:42 pm

2 stops15h 57m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

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 April.

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 Accuracy1 star	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 $405). 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

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and United Airlines from Manchester to Seattle to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,961 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

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 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

4,292 reviews

Alaska Airlines

8.0

Very good

9,961 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

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 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

9,961 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 $390, Southwest will fly you from Manchester, New Hampshire to Seattle and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $410 and $452, respectively. These flights start at 29% 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 July is currently the most expensive (average of $405). 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$381	Average$595	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$401	Average$533	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$432	Average$546	FlexibilityNo cancel fee	On-time63%

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$172+ 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 abril 29, 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 abril 29, 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 April.

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 April 25, 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 abril 29, 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

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and United Airlines from Manchester to Seattle to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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?

Browse thousands of different options on Cheapflights for your next trip

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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 abril 29, 2025.