Washington County Flights - Book Cheap Flights to Washington County

View RM2,495 flight on Mon, 6 Apr 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 RM2,495 for one-way flights and RM4,557 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Thu, 2 Apr - Thu, 9 Apr
LHR
London
STL
St. Louis
RM4,557 Return, found 19 hours ago
RM4,557
Return
found 19 hours ago
Select Swiss International Air Lines flight, departing Thu, 2 Apr from London to St. Louis, returning Thu, 9 Apr, priced at RM4,557 found 19 hours ago
Philippine Airlines
Fri, 16 Oct - Sun, 25 Oct
KUL
Kuala Lumpur
STL
St. Louis
RM4,751 Return, found 14 hours ago
RM4,751
Return
found 14 hours ago
Select Philippine Airlines flight, departing Fri, 16 Oct from Kuala Lumpur to St. Louis, returning Sun, 25 Oct, priced at RM4,751 found 14 hours ago
Delta
Thu, 2 Apr - Thu, 9 Apr
LHR
London
STL
St. Louis
RM4,802 Return, found 19 hours ago
RM4,802
Return
found 19 hours ago
Select Delta flight, departing Thu, 2 Apr from London to St. Louis, returning Thu, 9 Apr, priced at RM4,802 found 19 hours ago
American Airlines
Thu, 2 Apr - Thu, 9 Apr
LHR
London
STL
St. Louis
RM4,802 Return, found 19 hours ago
RM4,802
Return
found 19 hours ago
Select American Airlines flight, departing Thu, 2 Apr from London to St. Louis, returning Thu, 9 Apr, priced at RM4,802 found 19 hours ago
Lufthansa
Fri, 16 Oct - Sun, 25 Oct
BEY
Beirut
STL
St. Louis
RM4,826 Return, found 14 hours ago
RM4,826
Return
found 14 hours ago
Select Lufthansa flight, departing Fri, 16 Oct from Beirut to St. Louis, returning Sun, 25 Oct, priced at RM4,826 found 14 hours ago
Air Canada
Fri, 16 Oct - Sun, 25 Oct
BEY
Beirut
STL
St. Louis
RM4,873 Return, found 14 hours ago
RM4,873
Return
found 14 hours ago
Select Air Canada flight, departing Fri, 16 Oct from Beirut to St. Louis, returning Sun, 25 Oct, priced at RM4,873 found 14 hours ago
Lufthansa
Fri, 16 Oct - Sun, 25 Oct
BEY
Beirut
STL
St. Louis
RM4,910 Return, found 14 hours ago
RM4,910
Return
found 14 hours ago
Select Lufthansa flight, departing Fri, 16 Oct from Beirut to St. Louis, returning Sun, 25 Oct, priced at RM4,910 found 14 hours ago
Finnair
Thu, 2 Apr - Thu, 9 Apr
LHR
London
STL
St. Louis
RM4,941 Return, found 19 hours ago
RM4,941
Return
found 19 hours ago
Select Finnair flight, departing Thu, 2 Apr from London to St. Louis, returning Thu, 9 Apr, priced at RM4,941 found 19 hours ago
Iberia
Thu, 2 Apr - Thu, 9 Apr
LHR
London
STL
St. Louis
RM4,941 Return, found 19 hours ago
RM4,941
Return
found 19 hours ago
Select Iberia flight, departing Thu, 2 Apr from London to St. Louis, returning Thu, 9 Apr, priced at RM4,941 found 19 hours ago
British Airways
Thu, 2 Apr - Thu, 9 Apr
LHR
London
STL
St. Louis
RM4,941 Return, found 19 hours ago
RM4,941
Return
found 19 hours ago
Select British Airways flight, departing Thu, 2 Apr from London to St. Louis, returning Thu, 9 Apr, priced at RM4,941 found 19 hours ago

About Washington County

Expedia offers flights to Washington County to meet every traveler'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. RM4,557 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 RM4,557 and RM4,941 in the last seven days. For one-way trips departing from London (LHR), the lowest amount paid during this time was RM2,495.
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 RM4,557 to RM4,941 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, 16 Oct - Sun, 25 Oct
KUL
Kuala Lumpur
STL
St. Louis
RM4,751 Return, found 14 hours ago
RM4,751
Return
found 14 hours ago
Select Philippine Airlines flight, departing Fri, 16 Oct from Kuala Lumpur to St. Louis, returning Sun, 25 Oct, priced at RM4,751 found 14 hours ago
*Available to Expedia members.