$176 Cheap Flights from Manchester (MHT) to Seattle (SEA)

View $176 flight on Tue, Jan 20, 2026Opens in a new window

Popular airlines from Manchester-Boston Regional Airport (MHT) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Manchester to Seattle (MHT-SEA)

Prices were available within the past 7 days and start at $176 for one-way flights and $351 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Dec 15 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$351 Roundtrip, found 4 days ago
$351
Roundtrip
found 4 days ago
Select American Airlines flight, departing Mon, Dec 15 from Manchester to Seattle, returning Tue, Dec 16, priced at $351 found 4 days ago
Southwest Airlines
Mon, Dec 15 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$356 Roundtrip, found 4 days ago
$356
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Dec 15 from Manchester to Seattle, returning Tue, Dec 16, priced at $356 found 4 days ago
Southwest Airlines
Thu, Dec 11 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$360 Roundtrip, found 6 days ago
$360
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 11 from Manchester to Seattle, returning Tue, Dec 16, priced at $360 found 6 days ago
Southwest Airlines
Mon, Dec 15 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$361 Roundtrip, found 4 days ago
$361
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Dec 15 from Manchester to Seattle, returning Tue, Dec 16, priced at $361 found 4 days ago
Southwest Airlines
Thu, Dec 11 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$365 Roundtrip, found 6 days ago
$365
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Thu, Dec 11 from Manchester to Seattle, returning Tue, Dec 16, priced at $365 found 6 days ago
Southwest Airlines
Mon, Dec 15 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$366 Roundtrip, found 4 days ago
$366
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Dec 15 from Manchester to Seattle, returning Tue, Dec 16, priced at $366 found 4 days ago
American Airlines
Thu, Jan 15 - Fri, Jan 23
MHT
Manchester
SEA
Seattle
$367 Roundtrip, found 3 days ago
$367
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Jan 15 from Manchester to Seattle, returning Fri, Jan 23, priced at $367 found 3 days ago
Southwest Airlines
Mon, Dec 15 - Tue, Dec 16
MHT
Manchester
SEA
Seattle
$370 Roundtrip, found 4 days ago
$370
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Dec 15 from Manchester to Seattle, returning Tue, Dec 16, priced at $370 found 4 days ago
United
Thu, Jan 15 - Fri, Jan 23
MHT
Manchester
SEA
Seattle
$378 Roundtrip, found 3 days ago
$378
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jan 15 from Manchester to Seattle, returning Fri, Jan 23, priced at $378 found 3 days ago
Alaska Airlines
Mon, Jan 19 - Thu, Jan 29
MHT
Manchester
SEA
Seattle
$451 Roundtrip, found 3 days ago
$451
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Mon, Jan 19 from Manchester to Seattle, returning Thu, Jan 29, priced at $451 found 3 days ago

Find the cheapest month to fly from Manchester (MHT) to Seattle (SEA)

September is typically the cheapest month to fly

From $268 - $717 per traveler.

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $532
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $532

Frequently asked questions

How much does a flight from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA) cost?
Get a cheap one-way flight from $176 or cheap return flight from $351 from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA)?
December is the most affordable month to fly from MHT to SEA. Traveling during an off-peak travel window is often the key to landing a great deal.
Which airlines fly direct from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA)?
While Manchester, NH (MHT-Manchester-Boston Regional) doesn't offer any direct flights to Seattle - Tacoma Intl. Airport (SEA), other airports have nonstop routes. Flying from Logan Intl. Airport (BOS) will get you to Seattle without any layovers.
What is the cheapest airline that flies from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from MHT to SEA. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA)?
You'll have to take a flight with a layover when traveling from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from MHT to SEA?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA)?
To touch down at Seattle - Tacoma Intl. Airport (SEA) on time, pick a flight that leaves Manchester-Boston Regional Airport (MHT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from MHT to SEA are typically more expensive. For the lowest prices, start searching for flights early. That said, if you're flexible with your travel plans, you may land a cheap ticket right before your trip.
Is it cheaper to book a MHT to SEA flight and hotel package?
Booking a MHT to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Manchester-Boston Regional Airport (MHT) to Seattle - Tacoma Intl. Airport (SEA)?
Typically, you can cancel or reschedule your MHT to SEA flight. However, additional fees may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you want further information, head to our Customer Service portal.

Travel information

Origin airport
Manchester-Boston Regional
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Southwest Airlines, United
Roundtrip price
$350
Distance
2451 mi

Book with confidence

Manchester to Seattle Flights

The cheapest times to fly from Manchester to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Manchester to Seattle are during the month of December. You can find some of the cheapest flights from Manchester to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Manchester to Seattle

Sunday is one of the best days to book for cheap flights from Manchester to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Manchester to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Manchester to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $176 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Manchester to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Manchester to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Manchester to Seattle Flights

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