Cheap flights to Washington County

View €81 flight on Mon, 23 Feb 2026Opens in a new window

Popular airlines to Washington County

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  • Delta

  • United

  • Southwest Airlines

  • Frontier 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 €81 for one-way flights and €231 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 19 Feb - Mon, 23 Feb
MDW
Chicago
STL
St. Louis
€231 Return, found 6 days ago
€231
Return
found 6 days ago
Select Delta flight, departing Thu, 19 Feb from Chicago to St. Louis, returning Mon, 23 Feb, priced at €231 found 6 days ago
Aer Lingus
Tue, 21 Apr - Thu, 30 Apr
DUB
Dublin
STL
St. Louis
€610 Return, found 5 days ago
€610
Return
found 5 days ago
Select Aer Lingus flight, departing Tue, 21 Apr from Dublin to St. Louis, returning Thu, 30 Apr, priced at €610 found 5 days ago
Lufthansa
Mon, 14 Sept - Mon, 28 Sept
SOF
Sofia
STL
St. Louis
€635 Return, found 5 days ago
€635
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 14 Sept from Sofia to St. Louis, returning Mon, 28 Sept, priced at €635 found 5 days ago
Lufthansa
Mon, 14 Sept - Mon, 28 Sept
SOF
Sofia
STL
St. Louis
€639 Return, found 5 days ago
€639
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 14 Sept from Sofia to St. Louis, returning Mon, 28 Sept, priced at €639 found 5 days ago
American Airlines
Tue, 17 Feb - Sat, 21 Feb
DUB
Dublin
COU
Columbia
€639 Return, found 2 days ago
€639
Return
found 2 days ago
Select American Airlines flight, departing Tue, 17 Feb from Dublin to Columbia, returning Sat, 21 Feb, priced at €639 found 2 days ago
United
Mon, 14 Sept - Mon, 28 Sept
SOF
Sofia
STL
St. Louis
€659 Return, found 5 days ago
€659
Return
found 5 days ago
Select United flight, departing Mon, 14 Sept from Sofia to St. Louis, returning Mon, 28 Sept, priced at €659 found 5 days ago
British Airways
Sat, 14 Feb - Sat, 21 Feb
SOF
Sofia
STL
St. Louis
€669 Return, found 6 days ago
€669
Return
found 6 days ago
Select British Airways flight, departing Sat, 14 Feb from Sofia to St. Louis, returning Sat, 21 Feb, priced at €669 found 6 days ago
Air Canada
Fri, 3 Jul - Sun, 2 Aug
SOF
Sofia
STL
St. Louis
€690 Return, found 5 days ago
€690
Return
found 5 days ago
Select Air Canada flight, departing Fri, 3 Jul from Sofia to St. Louis, returning Sun, 2 Aug, priced at €690 found 5 days ago
Air France
Mon, 14 Sept - Mon, 28 Sept
SOF
Sofia
STL
St. Louis
€724 Return, found 5 days ago
€724
Return
found 5 days ago
Select Air France flight, departing Mon, 14 Sept from Sofia to St. Louis, returning Mon, 28 Sept, priced at €724 found 5 days ago
Austrian Airlines
Mon, 14 Sept - Mon, 28 Sept
SOF
Sofia
STL
St. Louis
€770 Return, found 5 days ago
€770
Return
found 5 days ago
Select Austrian Airlines flight, departing Mon, 14 Sept from Sofia to St. Louis, returning Mon, 28 Sept, priced at €770 found 5 days ago

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.

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. €231 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 €231 and €770 in the last seven days. For one-way trips departing from Chicago (MDW), the lowest amount paid during this time was €81.
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 €231 to €770 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.

Aer Lingus
Tue, 21 Apr - Thu, 30 Apr
DUB
Dublin
STL
St. Louis
€610 Return, found 5 days ago
€610
Return
found 5 days ago
Select Aer Lingus flight, departing Tue, 21 Apr from Dublin to St. Louis, returning Thu, 30 Apr, priced at €610 found 5 days ago
*Available to Expedia members.