Washington County Flights - Book Cheap Flights to Washington County

View RM560 flight on Thu, 26 Feb 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 RM560 for one-way flights and RM1,504 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,504 Return, found 1 day ago
RM1,504
Return
found 1 day ago
Select Delta flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,504 found 1 day ago
Delta
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,527 Return, found 1 day ago
RM1,527
Return
found 1 day ago
Select Delta flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,527 found 1 day ago
Delta
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,580 Return, found 1 day ago
RM1,580
Return
found 1 day ago
Select Delta flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,580 found 1 day ago
Delta
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,603 Return, found 1 day ago
RM1,603
Return
found 1 day ago
Select Delta flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,603 found 1 day ago
Delta
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,611 Return, found 1 day ago
RM1,611
Return
found 1 day ago
Select Delta flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,611 found 1 day ago
Delta
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,642 Return, found 1 day ago
RM1,642
Return
found 1 day ago
Select Delta flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,642 found 1 day ago
American Airlines
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM1,726 Return, found 1 day ago
RM1,726
Return
found 1 day ago
Select American Airlines flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM1,726 found 1 day ago
United
Thu, 26 Feb - Wed, 4 Mar
SFO
San Francisco
STL
St. Louis
RM2,100 Return, found 1 day ago
RM2,100
Return
found 1 day ago
Select United flight, departing Thu, 26 Feb from San Francisco to St. Louis, returning Wed, 4 Mar, priced at RM2,100 found 1 day ago
Air Canada
Sun, 25 Oct - Sun, 15 Nov
KUL
Kuala Lumpur
STL
St. Louis
RM4,996 Return, found 3 days ago
RM4,996
Return
found 3 days ago
Select Air Canada flight, departing Sun, 25 Oct from Kuala Lumpur to St. Louis, returning Sun, 15 Nov, priced at RM4,996 found 3 days ago
Qatar Airways
Sun, 25 Oct - Sun, 15 Nov
KUL
Kuala Lumpur
STL
St. Louis
RM5,050 Return, found 3 days ago
RM5,050
Return
found 3 days ago
Select Qatar Airways flight, departing Sun, 25 Oct from Kuala Lumpur to St. Louis, returning Sun, 15 Nov, priced at RM5,050 found 3 days 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. RM1,504 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 RM1,504 and RM5,050 in the last seven days. For one-way trips departing from San Francisco (SFO), the lowest amount paid during this time was RM560.
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 RM1,504 to RM5,050 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.

Air Canada
Sun, 25 Oct - Sun, 15 Nov
KUL
Kuala Lumpur
STL
St. Louis
RM4,996 Return, found 3 days ago
RM4,996
Return
found 3 days ago
Select Air Canada flight, departing Sun, 25 Oct from Kuala Lumpur to St. Louis, returning Sun, 15 Nov, priced at RM4,996 found 3 days ago
*Available to Expedia members.