£646 Cheap Flights to Washington County

Popular airlines to Washington County

  • Delta

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  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Frontier Airlines

    Frontier Airlines

  • Alaska Airlines

    Alaska Airlines

  • Air Canada

    Air Canada

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at £646 for one-way flights and £605 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, 24 Sep - Mon, 29 Sep
LHR
London
STL
St. Louis
£605 Return, found 1 hour ago
£605
Return
found 1 hour ago
Select Scandinavian Airlines flight, departing Wed, 24 Sep from London to St. Louis, returning Mon, 29 Sep, priced at £605 found 1 hour ago
Scandinavian Airlines
Fri, 31 Oct - Fri, 7 Nov
MAN
Manchester
STL
St. Louis
£615 Return, found 3 hours ago
£615
Return
found 3 hours ago
Select Scandinavian Airlines flight, departing Fri, 31 Oct from Manchester to St. Louis, returning Fri, 7 Nov, priced at £615 found 3 hours ago
Air Canada
Tue, 30 Sep - Mon, 6 Oct
LHR
London
STL
St. Louis
£633 Return, just found
£633
Return
just found
Select Air Canada flight, departing Tue, 30 Sep from London to St. Louis, returning Mon, 6 Oct, priced at £633 just found
Lufthansa
Fri, 29 Aug - Thu, 11 Sep
LHR
London
STL
St. Louis
£696 Return, found 1 hour ago
£696
Return
found 1 hour ago
Select Lufthansa flight, departing Fri, 29 Aug from London to St. Louis, returning Thu, 11 Sep, priced at £696 found 1 hour ago
American Airlines
Wed, 3 Dec - Tue, 16 Dec
LHR
London
COU
Columbia
£708 Return, found 4 days ago
£708
Return
found 4 days ago
Select American Airlines flight, departing Wed, 3 Dec from London to Columbia, returning Tue, 16 Dec, priced at £708 found 4 days ago
British Airways
Mon, 9 Feb - Tue, 17 Feb
LHR
London
STL
St. Louis
£708 Return, found 4 days ago
£708
Return
found 4 days ago
Select British Airways flight, departing Mon, 9 Feb from London to St. Louis, returning Tue, 17 Feb, priced at £708 found 4 days ago
United
Mon, 1 Dec - Tue, 16 Dec
LHR
London
COU
Columbia
£712 Return, found 3 days ago
£712
Return
found 3 days ago
Select United flight, departing Mon, 1 Dec from London to Columbia, returning Tue, 16 Dec, priced at £712 found 3 days ago
Austrian Airlines
Thu, 4 Sep - Thu, 11 Sep
LHR
London
STL
St. Louis
£723 Return, just found
£723
Return
just found
Select Austrian Airlines flight, departing Thu, 4 Sep from London to St. Louis, returning Thu, 11 Sep, priced at £723 just found
Iberia
Tue, 7 Oct - Tue, 14 Oct
LHR
London
STL
St. Louis
£724 Return, found 1 day ago
£724
Return
found 1 day ago
Select Iberia flight, departing Tue, 7 Oct from London to St. Louis, returning Tue, 14 Oct, priced at £724 found 1 day ago
Lufthansa
Wed, 24 Sep - Tue, 30 Sep
LCY
London
STL
St. Louis
£725 Return, found 8 hours ago
£725
Return
found 8 hours ago
Select Lufthansa flight, departing Wed, 24 Sep from London to St. Louis, returning Tue, 30 Sep, priced at £725 found 8 hours ago

Top tips for booking flights to Washington County from UK

Get ready to fly to Washington County

Prepare your luggage and book your flights to Washington County with Expedia. We offer a seamless flight booking experience, with a wide range of Washington County plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Washington County in 2025, we are always available to assist you. Book your flights to Washington County today and let the adventure begin!

Find the best tickets to Washington County

To find some of the best tickets to Washington County in 2025, 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 Washington County or last-minute flights to Washington County, you can filter and sort your search results, making it easy to find the ideal flight to Washington County.

Airlines fly to Washington County

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

Find the cheapest flights to Washington County

By booking early you may find some of the best deals for Washington County flights from the UK, including Washington County direct flights. You can usually find affordable and cheap flights to Washington County, whether one-way from £646 or round-trip from £605, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Washington County

Try searching for different Washington County airports with Expedia to find some of the cheapest flights to Washington County. Flights from London (LHR) to St. Louis (STL) usually have the lowest price from £646.

Why book your flights to Washington County with Expedia

Expedia offers great deals on Washington County air fares from £646 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Washington 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.

Washington County Flights Information

Airlines serving
Scandinavian Airlines, Air Canada, TAP Portugal, Lufthansa, American Airlines, British Airways, United, Austrian Airlines, Iberia, Aer Lingus, Virgin Atlantic, Brussels Airlines
Roundtrip price
from £605

Frequently asked questions

How do I find cheap flights to Washington County that have flexible change policies?
At Expedia, we've been channeling our inner yogi to provide you with the most flexible airfares on the market. Just check the "No change fee" box right under the filter heading "Flexible change policies" to find your dream flight to Washington County.
Which airlines fly to Washington County?
With a great range of airlines operating flights into or near Washington County, you're not short on choice:

  • Southwest Airlines - 2,214 flights to or near Washington County each month, including 2,214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 789 flights to or near Washington County each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 650 flights to or near Washington County each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to Washington County?
You'll always nab an amazing deal with Expedia, but our "flexible dates" feature makes it that much easier. Enter your preferred travel date, then click on the flexible dates box above to compare prices for nearby days. £605 was the best price for a flight to Washington County in the last seven days.
How much is a flight to Washington County?
You could have scored a return ticket to Washington County from anywhere between £605 and £901 in the last seven days. For one-way trips departing from London (LHR), the lowest amount paid during this time was £646.
What are the most popular airports to fly into in Washington County?
Book your flight to Lambert-St. Louis Intl. Airport (STL) and sample the best that Washington County has to offer. As the region's primary entry point, approximately 4,902 flights touch down here every month.
When is the cheapest time to fly to Washington County?
Fly out on a Tuesday to raise your chances of landing the cheapest flight to Washington County. Mondays are usually the next most affordable day to depart. Saturday is typically the costliest day to fly anywhere.
How much is a plane ticket to Washington County?
Fares to Washington County varied from £605 to £901 in the last seven days. Generally, the sooner you make a reservation, the better the deal.
What is the best time to go to Washington County?
July, August and September are the most popular months to venture to Sullivan, one of Washington County's most interesting cities. Summertime here starts June 20. Average temperatures vary from 18ºC to 29ºC across this season, so organise your travels around then if you're into warmer weather.
What months are the cheapest to book a flight to Washington County?
February is the ideal month to bag an awesome deal to Washington County. Keep in mind that the most expensive time to make a booking in the States isn't during the height of summer, but the month of December.

Trending flights to Washington 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.

Scandinavian Airlines
Wed, 24 Sep - Mon, 29 Sep
LHR
London
STL
St. Louis
£605 Return, found 1 hour ago
£605
Return
found 1 hour ago
Select Scandinavian Airlines flight, departing Wed, 24 Sep from London to St. Louis, returning Mon, 29 Sep, priced at £605 found 1 hour ago
*Available to Expedia members.