Cheap flights to Washington County

View €143 flight on Thu, 4 Jun 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • Southwest Airlines

  • Alaska Airlines

  • Air Canada

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at €143 for one-way flights and €285 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 4 Jun - Mon, 8 Jun
EWR
New York
STL
St. Louis
€285 Return, found 1 hour ago
€285
Return
found 1 hour ago
Select Delta flight, departing Thu, 4 Jun from New York to St. Louis, returning Mon, 8 Jun, priced at €285 found 1 hour ago
United
Thu, 4 Jun - Mon, 8 Jun
EWR
New York
STL
St. Louis
€336 Return, found 1 hour ago
€336
Return
found 1 hour ago
Select United flight, departing Thu, 4 Jun from New York to St. Louis, returning Mon, 8 Jun, priced at €336 found 1 hour ago
American Airlines
Thu, 4 Jun - Mon, 8 Jun
EWR
New York
STL
St. Louis
€385 Return, found 1 hour ago
€385
Return
found 1 hour ago
Select American Airlines flight, departing Thu, 4 Jun from New York to St. Louis, returning Mon, 8 Jun, priced at €385 found 1 hour ago
United
Wed, 17 Jun - Sun, 12 Jul
CPH
Copenhagen
STL
St. Louis
€605 Return, found 22 hours ago
€605
Return
found 22 hours ago
Select United flight, departing Wed, 17 Jun from Copenhagen to St. Louis, returning Sun, 12 Jul, priced at €605 found 22 hours ago
British Airways
Wed, 17 Jun - Sun, 12 Jul
CPH
Copenhagen
STL
St. Louis
€631 Return, found 22 hours ago
€631
Return
found 22 hours ago
Select British Airways flight, departing Wed, 17 Jun from Copenhagen to St. Louis, returning Sun, 12 Jul, priced at €631 found 22 hours ago
Lufthansa
Wed, 17 Jun - Thu, 9 Jul
CPH
Copenhagen
STL
St. Louis
€666 Return, found 22 hours ago
€666
Return
found 22 hours ago
Select Lufthansa flight, departing Wed, 17 Jun from Copenhagen to St. Louis, returning Thu, 9 Jul, priced at €666 found 22 hours ago
Virgin Atlantic
Wed, 17 Jun - Fri, 10 Jul
CPH
Copenhagen
STL
St. Louis
€718 Return, found 22 hours ago
€718
Return
found 22 hours ago
Select Virgin Atlantic flight, departing Wed, 17 Jun from Copenhagen to St. Louis, returning Fri, 10 Jul, priced at €718 found 22 hours ago
British Airways
Mon, 8 Feb - Sat, 27 Feb
DUB
Dublin
COU
Columbia
€739 Return, found 18 hours ago
€739
Return
found 18 hours ago
Select British Airways flight, departing Mon, 8 Feb from Dublin to Columbia, returning Sat, 27 Feb, priced at €739 found 18 hours ago
Air France
Wed, 17 Jun - Wed, 8 Jul
CPH
Copenhagen
STL
St. Louis
€756 Return, found 22 hours ago
€756
Return
found 22 hours ago
Select Air France flight, departing Wed, 17 Jun from Copenhagen to St. Louis, returning Wed, 8 Jul, priced at €756 found 22 hours ago
Finnair
Wed, 17 Jun - Sat, 11 Jul
CPH
Copenhagen
STL
St. Louis
€798 Return, found 22 hours ago
€798
Return
found 22 hours ago
Select Finnair flight, departing Wed, 17 Jun from Copenhagen to St. Louis, returning Sat, 11 Jul, priced at €798 found 22 hours ago

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.

British Airways
Mon, 8 Feb - Sat, 27 Feb
DUB
Dublin
COU
Columbia
€739 Return, found 18 hours ago
€739
Return
found 18 hours ago
Select British Airways flight, departing Mon, 8 Feb from Dublin to Columbia, returning Sat, 27 Feb, priced at €739 found 18 hours ago

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. €285 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 €285 and €798 in the last seven days. For one-way trips departing from New York (EWR), the lowest amount paid during this time was €143.
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.
How much is a plane ticket to Washington County?
Fares to Washington County varied from €285 to €798 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.

Book with confidence

About Washington County

Expedia offers flights to Washington County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Washington County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Washington County
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