Flight Destinations in Washington County

View ฿14,935 flight on Tue, 19 May 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 ฿14,935 for one-way flights and ฿24,525 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 29 Aug - Sun, 6 Sept
NRT
Tokyo
STL
St. Louis
฿24,525 Return, found 6 days ago
฿24,525
Return
found 6 days ago
Select United flight, departing Sat, 29 Aug from Tokyo to St. Louis, returning Sun, 6 Sept, priced at ฿24,525 found 6 days ago
United
Tue, 19 May - Sun, 19 Jul
HND
Tokyo
STL
St. Louis
฿26,160 Return, found 3 days ago
฿26,160
Return
found 3 days ago
Select United flight, departing Tue, 19 May from Tokyo to St. Louis, returning Sun, 19 Jul, priced at ฿26,160 found 3 days ago
Delta
Tue, 19 May - Sun, 19 Jul
HND
Tokyo
STL
St. Louis
฿26,210 Return, found 3 days ago
฿26,210
Return
found 3 days ago
Select Delta flight, departing Tue, 19 May from Tokyo to St. Louis, returning Sun, 19 Jul, priced at ฿26,210 found 3 days ago
American Airlines
Wed, 26 Aug - Sun, 6 Sept
NRT
Tokyo
STL
St. Louis
฿29,255 Return, found 6 days ago
฿29,255
Return
found 6 days ago
Select American Airlines flight, departing Wed, 26 Aug from Tokyo to St. Louis, returning Sun, 6 Sept, priced at ฿29,255 found 6 days ago
Alaska Airlines
Mon, 24 Aug - Thu, 3 Sept
NRT
Tokyo
STL
St. Louis
฿34,775 Return, found 6 days ago
฿34,775
Return
found 6 days ago
Select Alaska Airlines flight, departing Mon, 24 Aug from Tokyo to St. Louis, returning Thu, 3 Sept, priced at ฿34,775 found 6 days ago
Air Canada
Tue, 19 May - Sun, 19 Jul
NRT
Tokyo
STL
St. Louis
฿35,785 Return, found 4 days ago
฿35,785
Return
found 4 days ago
Select Air Canada flight, departing Tue, 19 May from Tokyo to St. Louis, returning Sun, 19 Jul, priced at ฿35,785 found 4 days ago
China Airlines
Tue, 15 Sept - Sun, 4 Oct
BKK
Bangkok
STL
St. Louis
฿38,535 Return, found 4 hours ago
฿38,535
Return
found 4 hours ago
Select China Airlines flight, departing Tue, 15 Sept from Bangkok to St. Louis, returning Sun, 4 Oct, priced at ฿38,535 found 4 hours ago
EVA Airways
Sat, 23 Jan - Sat, 13 Feb
CNX
Chiang Mai
STL
St. Louis
฿41,210 Return, found 23 hours ago
฿41,210
Return
found 23 hours ago
Select EVA Airways flight, departing Sat, 23 Jan from Chiang Mai to St. Louis, returning Sat, 13 Feb, priced at ฿41,210 found 23 hours 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
Cathay Pacific
Tue, 19 May - Sun, 19 Jul
NRT
Tokyo
STL
St. Louis
฿43,800 Return, found 4 days ago
฿43,800
Return
found 4 days ago
Select Cathay Pacific flight, departing Tue, 19 May from Tokyo to St. Louis, returning Sun, 19 Jul, priced at ฿43,800 found 4 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
Tue, 15 Sept - Sun, 4 Oct
BKK
Bangkok
STL
St. Louis
฿38,535 Return, found 4 hours ago
฿38,535
Return
found 4 hours ago
Select China Airlines flight, departing Tue, 15 Sept from Bangkok to St. Louis, returning Sun, 4 Oct, priced at ฿38,535 found 4 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. ฿24,525 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 ฿24,525 and ฿43,800 in the last seven days. For one-way trips departing from Tokyo (HND), the lowest amount paid during this time was ฿14,935.
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 ฿24,525 to ฿43,800 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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