Flight Destinations in Washington County

View ฿5,755 flight on Wed, 24 Jun 2026Opens in a new window

Popular airlines to Washington County

  • American Airlines

  • 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 ฿5,755 for one-way flights and ฿9,940 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 3 Jun - Tue, 9 Jun
ORD
Chicago
COU
Columbia
฿9,940 Return, found 1 day ago
฿9,940
Return
found 1 day ago
Select American Airlines flight, departing Wed, 3 Jun from Chicago to Columbia, returning Tue, 9 Jun, priced at ฿9,940 found 1 day ago
United
Wed, 3 Jun - Tue, 9 Jun
ORD
Chicago
COU
Columbia
฿9,940 Return, found 1 day ago
฿9,940
Return
found 1 day ago
Select United flight, departing Wed, 3 Jun from Chicago to Columbia, returning Tue, 9 Jun, priced at ฿9,940 found 1 day ago
American Airlines
Wed, 3 Jun - Tue, 9 Jun
ORD
Chicago
COU
Columbia
฿10,260 Return, found 1 day ago
฿10,260
Return
found 1 day ago
Select American Airlines flight, departing Wed, 3 Jun from Chicago to Columbia, returning Tue, 9 Jun, priced at ฿10,260 found 1 day ago
United
Wed, 3 Jun - Tue, 9 Jun
ORD
Chicago
COU
Columbia
฿10,425 Return, found 1 day ago
฿10,425
Return
found 1 day ago
Select United flight, departing Wed, 3 Jun from Chicago to Columbia, returning Tue, 9 Jun, priced at ฿10,425 found 1 day ago
Delta
Wed, 24 Jun - Mon, 20 Jul
ORD
Chicago
STL
St. Louis
฿11,510 Return, found 1 day ago
฿11,510
Return
found 1 day ago
Select Delta flight, departing Wed, 24 Jun from Chicago to St. Louis, returning Mon, 20 Jul, priced at ฿11,510 found 1 day ago
China Airlines
Sat, 13 Feb - Tue, 16 Feb
BKK
Bangkok
STL
St. Louis
฿38,570 Return, found 5 days ago
฿38,570
Return
found 5 days ago
Select China Airlines flight, departing Sat, 13 Feb from Bangkok to St. Louis, returning Tue, 16 Feb, priced at ฿38,570 found 5 days ago
Air Canada
Tue, 24 Nov - Mon, 7 Dec
BKK
Bangkok
STL
St. Louis
฿42,485 Return, found 3 days ago
฿42,485
Return
found 3 days ago
Select Air Canada flight, departing Tue, 24 Nov from Bangkok to St. Louis, returning Mon, 7 Dec, priced at ฿42,485 found 3 days ago
Qatar Airways
Thu, 25 Jun - Mon, 27 Jul
BKK
Bangkok
STL
St. Louis
฿42,515 Return, found 3 days ago
฿42,515
Return
found 3 days ago
Select Qatar Airways flight, departing Thu, 25 Jun from Bangkok to St. Louis, returning Mon, 27 Jul, priced at ฿42,515 found 3 days ago
Japan Airlines
Thu, 27 Aug - Thu, 10 Sept
BKK
Bangkok
COU
Columbia
฿45,560 Return, found 4 days ago
฿45,560
Return
found 4 days ago
Select Japan Airlines flight, departing Thu, 27 Aug from Bangkok to Columbia, returning Thu, 10 Sept, priced at ฿45,560 found 4 days ago
Finnair
Wed, 9 Sept - Sat, 19 Sept
BKK
Bangkok
STL
St. Louis
฿48,195 Return, found 5 days ago
฿48,195
Return
found 5 days ago
Select Finnair flight, departing Wed, 9 Sept from Bangkok to St. Louis, returning Sat, 19 Sept, priced at ฿48,195 found 5 days 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.

China Airlines
Sat, 13 Feb - Tue, 16 Feb
BKK
Bangkok
STL
St. Louis
฿38,570 Return, found 5 days ago
฿38,570
Return
found 5 days ago
Select China Airlines flight, departing Sat, 13 Feb from Bangkok to St. Louis, returning Tue, 16 Feb, priced at ฿38,570 found 5 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. ฿9,940 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 ฿9,940 and ฿48,195 in the last seven days. For one-way trips departing from Chicago (ORD), the lowest amount paid during this time was ฿5,755.
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 ฿9,940 to ฿48,195 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.

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