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Cheap flights to Washington County

View €494 flight on Wed, 26 Aug 2026Opens in a new window

Flight 1

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Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Alaska Airlines

  • Frontier 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 €494 for one-way flights and €721 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 1 Aug - Sat, 15 Aug
GVA
Geneva
STL
St. Louis
€721 Return, found 17 hours ago
€721
Return
found 17 hours ago
Select United flight, departing Sat, 1 Aug from Geneva to St. Louis, returning Sat, 15 Aug, priced at €721 found 17 hours ago
British Airways
Sun, 27 Dec - Sun, 3 Jan
DUB
Dublin
COU
Columbia
€738 Return, found 6 days ago
€738
Return
found 6 days ago
Select British Airways flight, departing Sun, 27 Dec from Dublin to Columbia, returning Sun, 3 Jan, priced at €738 found 6 days ago
United
Sat, 1 Aug - Sat, 15 Aug
GVA
Geneva
STL
St. Louis
€767 Return, found 17 hours ago
€767
Return
found 17 hours ago
Select United flight, departing Sat, 1 Aug from Geneva to St. Louis, returning Sat, 15 Aug, priced at €767 found 17 hours ago
British Airways
Sun, 27 Dec - Sun, 3 Jan
DUB
Dublin
COU
Columbia
€781 Return, found 6 days ago
€781
Return
found 6 days ago
Select British Airways flight, departing Sun, 27 Dec from Dublin to Columbia, returning Sun, 3 Jan, priced at €781 found 6 days ago
British Airways
Mon, 19 Oct - Sun, 25 Oct
DUB
Dublin
COU
Columbia
€785 Return, found 2 days ago
€785
Return
found 2 days ago
Select British Airways flight, departing Mon, 19 Oct from Dublin to Columbia, returning Sun, 25 Oct, priced at €785 found 2 days ago
American Airlines
Mon, 12 Oct - Mon, 19 Oct
DUB
Dublin
COU
Columbia
€796 Return, found 4 days ago
€796
Return
found 4 days ago
Select American Airlines flight, departing Mon, 12 Oct from Dublin to Columbia, returning Mon, 19 Oct, priced at €796 found 4 days ago
Lufthansa
Sat, 5 Sept - Sat, 12 Sept
ZAG
Zagreb
STL
St. Louis
€819 Return, found 1 day ago
€819
Return
found 1 day ago
Select Lufthansa flight, departing Sat, 5 Sept from Zagreb to St. Louis, returning Sat, 12 Sept, priced at €819 found 1 day ago
British Airways
Wed, 11 Nov - Wed, 18 Nov
DUB
Dublin
STL
St. Louis
€840 Return, found 4 days ago
€840
Return
found 4 days ago
Select British Airways flight, departing Wed, 11 Nov from Dublin to St. Louis, returning Wed, 18 Nov, priced at €840 found 4 days ago
Lufthansa
Mon, 20 Jul - Sun, 26 Jul
ZAG
Zagreb
STL
St. Louis
€860 Return, found 2 days ago
€860
Return
found 2 days ago
Select Lufthansa flight, departing Mon, 20 Jul from Zagreb to St. Louis, returning Sun, 26 Jul, priced at €860 found 2 days ago
Iberia
Thu, 19 Nov - Mon, 23 Nov
DUB
Dublin
STL
St. Louis
€875 Return, found 10 hours ago
€875
Return
found 10 hours ago
Select Iberia flight, departing Thu, 19 Nov from Dublin to St. Louis, returning Mon, 23 Nov, priced at €875 found 10 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
Sun, 27 Dec - Sun, 3 Jan
DUB
Dublin
COU
Columbia
€738 Return, found 6 days ago
€738
Return
found 6 days ago
Select British Airways flight, departing Sun, 27 Dec from Dublin to Columbia, returning Sun, 3 Jan, priced at €738 found 6 days 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. €721 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 €721 and €875 in the last seven days. For one-way trips departing from Zagreb (ZAG), the lowest amount paid during this time was €494.
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 €721 to €875 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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