Flight Destinations in Washington County

View ฿2,705 flight on Tue, 3 Mar 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • 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 ฿2,705 for one-way flights and ฿5,410 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 3 Feb - Tue, 17 Feb
ORD
Chicago
STL
St. Louis
฿5,410 Return, found 1 day ago
฿5,410
Return
found 1 day ago
Select Delta flight, departing Tue, 3 Feb from Chicago to St. Louis, returning Tue, 17 Feb, priced at ฿5,410 found 1 day ago
Delta
Tue, 3 Feb - Sat, 14 Feb
ORD
Chicago
STL
St. Louis
฿5,695 Return, found 1 day ago
฿5,695
Return
found 1 day ago
Select Delta flight, departing Tue, 3 Feb from Chicago to St. Louis, returning Sat, 14 Feb, priced at ฿5,695 found 1 day ago
Delta
Sat, 31 Jan - Sat, 14 Feb
ORD
Chicago
STL
St. Louis
฿5,975 Return, found 1 day ago
฿5,975
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Chicago to St. Louis, returning Sat, 14 Feb, priced at ฿5,975 found 1 day ago
United
Thu, 12 Feb - Tue, 3 Mar
ORD
Chicago
STL
St. Louis
฿6,950 Return, found 1 day ago
฿6,950
Return
found 1 day ago
Select United flight, departing Thu, 12 Feb from Chicago to St. Louis, returning Tue, 3 Mar, priced at ฿6,950 found 1 day ago
American Airlines
Tue, 3 Mar - Sat, 14 Mar
ORD
Chicago
STL
St. Louis
฿8,105 Return, found 1 day ago
฿8,105
Return
found 1 day ago
Select American Airlines flight, departing Tue, 3 Mar from Chicago to St. Louis, returning Sat, 14 Mar, priced at ฿8,105 found 1 day ago
Delta
Sat, 14 Mar - Tue, 24 Mar
BOS
Boston
STL
St. Louis
฿15,030 Return, found 1 day ago
฿15,030
Return
found 1 day ago
Select Delta flight, departing Sat, 14 Mar from Boston to St. Louis, returning Tue, 24 Mar, priced at ฿15,030 found 1 day ago
Philippine Airlines
Fri, 13 Feb - Fri, 20 Feb
BKK
Bangkok
STL
St. Louis
฿31,965 Return, found 1 day ago
฿31,965
Return
found 1 day ago
Select Philippine Airlines flight, departing Fri, 13 Feb from Bangkok to St. Louis, returning Fri, 20 Feb, priced at ฿31,965 found 1 day ago
Air Canada
Wed, 27 May - Wed, 22 Jul
BKK
Bangkok
STL
St. Louis
฿33,270 Return, found 4 days ago
฿33,270
Return
found 4 days ago
Select Air Canada flight, departing Wed, 27 May from Bangkok to St. Louis, returning Wed, 22 Jul, priced at ฿33,270 found 4 days ago
Japan Airlines
Wed, 28 Jan - Sun, 8 Feb
BKK
Bangkok
STL
St. Louis
฿33,945 Return, found 5 days ago
฿33,945
Return
found 5 days ago
Select Japan Airlines flight, departing Wed, 28 Jan from Bangkok to St. Louis, returning Sun, 8 Feb, priced at ฿33,945 found 5 days ago
Cathay Pacific
Mon, 9 Feb - Wed, 18 Feb
BKK
Bangkok
STL
St. Louis
฿36,910 Return, found 1 day ago
฿36,910
Return
found 1 day ago
Select Cathay Pacific flight, departing Mon, 9 Feb from Bangkok to St. Louis, returning Wed, 18 Feb, priced at ฿36,910 found 1 day 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. ฿5,410 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 ฿5,410 and ฿36,910 in the last seven days. For one-way trips departing from Chicago (ORD), the lowest amount paid during this time was ฿2,705.
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 ฿5,410 to ฿36,910 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.

Philippine Airlines
Fri, 13 Feb - Fri, 20 Feb
BKK
Bangkok
STL
St. Louis
฿31,965 Return, found 1 day ago
฿31,965
Return
found 1 day ago
Select Philippine Airlines flight, departing Fri, 13 Feb from Bangkok to St. Louis, returning Fri, 20 Feb, priced at ฿31,965 found 1 day ago
*Available to Expedia members.