£351 Cheap Flights to Mason County

View £351 flight on Sun, 19 Apr 2026Opens in a new window

Popular airlines to Mason County

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  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

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Cheap round-trip flights to Mason County

Prices were available within the past 7 days and start at £351 for one-way flights and £518 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 9 Dec - Tue, 15 Dec
LGW
London
SEA
Seattle
£518 Return, found 6 days ago
£518
Return
found 6 days ago
Select Icelandair flight, departing Wed, 9 Dec from London to Seattle, returning Tue, 15 Dec, priced at £518 found 6 days ago
Icelandair
Mon, 7 Dec - Sun, 13 Dec
LHR
London
SEA
Seattle
£519 Return, found 2 days ago
£519
Return
found 2 days ago
Select Icelandair flight, departing Mon, 7 Dec from London to Seattle, returning Sun, 13 Dec, priced at £519 found 2 days ago
Iberia
Tue, 24 Nov - Mon, 30 Nov
LHR
London
SEA
Seattle
£543 Return, found 2 days ago
£543
Return
found 2 days ago
Select Iberia flight, departing Tue, 24 Nov from London to Seattle, returning Mon, 30 Nov, priced at £543 found 2 days ago
British Airways
Wed, 2 Dec - Mon, 7 Dec
LHR
London
SEA
Seattle
£543 Return, found 7 hours ago
£543
Return
found 7 hours ago
Select British Airways flight, departing Wed, 2 Dec from London to Seattle, returning Mon, 7 Dec, priced at £543 found 7 hours ago
American Airlines
Wed, 2 Dec - Mon, 7 Dec
LHR
London
SEA
Seattle
£543 Return, found 7 hours ago
£543
Return
found 7 hours ago
Select American Airlines flight, departing Wed, 2 Dec from London to Seattle, returning Mon, 7 Dec, priced at £543 found 7 hours ago
Condor
Sun, 12 Apr - Sun, 19 Apr
LGW
London
SEA
Seattle
£549 Return, found 7 hours ago
£549
Return
found 7 hours ago
Select Condor flight, departing Sun, 12 Apr from London to Seattle, returning Sun, 19 Apr, priced at £549 found 7 hours ago
Alaska Airlines
Thu, 19 Nov - Wed, 25 Nov
LHR
London
SEA
Seattle
£556 Return, found 2 days ago
£556
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 19 Nov from London to Seattle, returning Wed, 25 Nov, priced at £556 found 2 days ago
Scandinavian Airlines
Thu, 28 May - Sun, 31 May
LHR
London
SEA
Seattle
£557 Return, found 1 day ago
£557
Return
found 1 day ago
Select Scandinavian Airlines flight, departing Thu, 28 May from London to Seattle, returning Sun, 31 May, priced at £557 found 1 day ago
Delta
Thu, 18 Jun - Mon, 29 Jun
LHR
London
SEA
Seattle
£564 Return, found 2 hours ago
£564
Return
found 2 hours ago
Select Delta flight, departing Thu, 18 Jun from London to Seattle, returning Mon, 29 Jun, priced at £564 found 2 hours ago
KLM
Fri, 19 Jun - Fri, 10 Jul
LHR
London
SEA
Seattle
£565 Return, found 1 hour ago
£565
Return
found 1 hour ago
Select KLM flight, departing Fri, 19 Jun from London to Seattle, returning Fri, 10 Jul, priced at £565 found 1 hour ago

Trending flights to Mason County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 9 Dec - Tue, 15 Dec
LGW
London
SEA
Seattle
£518 Return, found 6 days ago
£518
Return
found 6 days ago
Select Icelandair flight, departing Wed, 9 Dec from London to Seattle, returning Tue, 15 Dec, priced at £518 found 6 days ago

Frequently asked questions

How do I find cheap flights to Mason County that have flexible change policies?
It's as easy as 1-2-3 with Expedia. Firstly, enter your travel details and click "Search." Next step? Check "No change fee" just below the "Flexible change policies" filter on the top left of your screen. Step 3. Grab your flexible and cheap ticket to Mason County.
Which airlines fly to Mason County?
When you're ready to reserve your seat to or near Mason County, these top airlines look forward to welcoming you aboard:

  • Alaska Airlines - 8,781 flights to or near Mason County each month, including 8,781 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • Delta Air Lines - 4,186 flights to or near Mason County each month, including 4,186 flights to Seattle - Tacoma Intl. Airport (SEA) per month.
  • United Airlines - 828 flights to or near Mason County each month, including 828 flights to Seattle - Tacoma Intl. Airport (SEA) per month.

How can I find cheap tickets to Mason County?
Book well ahead of time, travel on a cheaper day, avoid peak travel periods — there's no shortage of ways! Another one is to use Expedia's "flexible dates" function. Find your Mason County flight, then check out the cheapest prices for nearby dates. In the last seven days, the best price for a flight to Mason County was £518.
How much is a flight to Mason County?
If you were journeying one way from London (LHR), you could've nabbed a low-cost fare for just £351 in the last seven days. Round-trip flights to Mason County ranged from £518 to £565 over the same period.
What are the most popular airports to fly into in Mason County?
Mason County's primary gateway is Seattle - Tacoma Intl. Airport (SEA). Get your next awesome journey underway by securing an airfare on one of the 15,456 flights per month to this destination.
When is the cheapest time to fly to Mason County?
Try to jet off early in the week to score a bargain airfare to Mason County. Tuesday is routinely the most affordable day to take off, with Monday a close second. Saturday typically has the costliest ticket prices. This is because many people prefer to begin their getaway on a weekend.
How much is a plane ticket to Mason County?
In the last seven days, journeys to Mason County varied between £518 and £565. Prices generally depend on the time of departure, cabin class, airline and when the fare is booked.
What is the best time to go to Mason County?
Shelton, Mason County's most populated city, is a superb destination to tour around at anytime. Not a fan of chilly weather? Then head here from June 20 onward in summer, when temperatures fluctuate from 10ºC to 24ºC. March, September and October is when Shelton lures the biggest crowds.
What months are the cheapest to book a flight to Mason County?
Reserve your ticket in February for bargain flight deals to Mason County. The festive month of December is often the most expensive time to buy an airfare.

Book with confidence

Top tips for booking flights to Mason County from UK

Get ready to fly to Mason County

Prepare your luggage and book your flights to Mason County with Expedia. We offer a seamless flight booking experience, with a wide range of Mason County plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Mason County in 2026, we are always available to assist you. Book your flights to Mason County today and let the adventure begin!

Find the best tickets to Mason County

To find some of the best tickets to Mason County in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Mason County or last-minute flights to Mason County, you can filter and sort your search results, making it easy to find the ideal flight to Mason County.

Airlines fly to Mason County

There are 20 different airlines that fly to Mason County including some of the most trusted names in the business. To book flights to Mason County with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Mason County plane tickets.

Find the cheapest flights to Mason County

By booking early you may find some of the best deals for Mason County flights from the UK, including Mason County direct flights. You can usually find affordable and cheap flights to Mason County, whether one-way from £351 or round-trip from £518, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Mason County

Try searching for different Mason County airports with Expedia to find some of the cheapest flights to Mason County. Flights from London (LHR) to Seattle (SEA) usually have the lowest price from £351.

Why book your flights to Mason County with Expedia

Expedia offers great deals on Mason County air fares from £351 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Mason County from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Top tips for booking flights to Mason County from UK

Travel information

Mason County Flights Information

Airlines serving
WestJet, Icelandair, JetBlue Airways, Lufthansa, Swiss International Air Lines, Aer Lingus, British Airways, Air Canada, Brussels Airlines, Iberia, American Airlines, Condor, Alaska Airlines, Scandinavian Airlines, Delta, KLM
Roundtrip price
from £518
Mason County Flights Information

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