Flight Destinations in Washington County

View ฿20,035 flight on Mon, 11 May 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

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at ฿20,035 for one-way flights and ฿32,475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Thu, 26 Mar - Fri, 17 Apr
BKK
Bangkok
STL
St. Louis
฿32,475 Return, found 1 day ago
฿32,475
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 26 Mar from Bangkok to St. Louis, returning Fri, 17 Apr, priced at ฿32,475 found 1 day ago
EVA Airways
Mon, 2 Feb - Tue, 7 Jul
BKK
Bangkok
STL
St. Louis
฿32,560 Return, found 5 days ago
฿32,560
Return
found 5 days ago
Select EVA Airways flight, departing Mon, 2 Feb from Bangkok to St. Louis, returning Tue, 7 Jul, priced at ฿32,560 found 5 days ago
Air Canada
Wed, 27 May - Wed, 22 Jul
BKK
Bangkok
STL
St. Louis
฿33,270 Return, found 1 day ago
฿33,270
Return
found 1 day ago
Select Air Canada flight, departing Wed, 27 May from Bangkok to St. Louis, returning Wed, 22 Jul, priced at ฿33,270 found 1 day ago
Air Canada
Wed, 27 May - Wed, 22 Jul
BKK
Bangkok
STL
St. Louis
฿33,340 Return, found 1 day ago
฿33,340
Return
found 1 day ago
Select Air Canada flight, departing Wed, 27 May from Bangkok to St. Louis, returning Wed, 22 Jul, priced at ฿33,340 found 1 day ago
Delta
Thu, 12 Mar - Tue, 24 Mar
HKT
Phuket
STL
St. Louis
฿33,405 Return, found 11 hours ago
฿33,405
Return
found 11 hours ago
Select Delta flight, departing Thu, 12 Mar from Phuket to St. Louis, returning Tue, 24 Mar, priced at ฿33,405 found 11 hours ago
Delta
Wed, 27 May - Wed, 22 Jul
BKK
Bangkok
STL
St. Louis
฿33,405 Return, found 1 day ago
฿33,405
Return
found 1 day ago
Select Delta flight, departing Wed, 27 May from Bangkok to St. Louis, returning Wed, 22 Jul, priced at ฿33,405 found 1 day ago
Air Canada
Wed, 27 May - Wed, 22 Jul
BKK
Bangkok
STL
St. Louis
฿33,445 Return, found 1 day ago
฿33,445
Return
found 1 day ago
Select Air Canada flight, departing Wed, 27 May from Bangkok to St. Louis, returning Wed, 22 Jul, priced at ฿33,445 found 1 day ago
Japan Airlines
Wed, 28 Jan - Sun, 8 Feb
BKK
Bangkok
STL
St. Louis
฿33,945 Return, found 1 day ago
฿33,945
Return
found 1 day ago
Select Japan Airlines flight, departing Wed, 28 Jan from Bangkok to St. Louis, returning Sun, 8 Feb, priced at ฿33,945 found 1 day ago
Cathay Pacific
Fri, 13 Mar - Wed, 25 Mar
BKK
Bangkok
STL
St. Louis
฿37,025 Return, found 1 day ago
฿37,025
Return
found 1 day ago
Select Cathay Pacific flight, departing Fri, 13 Mar from Bangkok to St. Louis, returning Wed, 25 Mar, priced at ฿37,025 found 1 day ago
Korean Air
Tue, 24 Feb - Wed, 25 Feb
BKK
Bangkok
STL
St. Louis
฿37,085 Return, found 1 day ago
฿37,085
Return
found 1 day ago
Select Korean Air flight, departing Tue, 24 Feb from Bangkok to St. Louis, returning Wed, 25 Feb, priced at ฿37,085 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 Olympic gymnast to give you the most flexible fares available. Simply mark the "No change fee" box right underneath the "Flexible change policies" subheading to find your perfect flight to Washington County.
Which airlines fly to Washington County?
Reserve your fare with Allegiant Air and then begin planning your Washington County travel agenda. This leading carrier offers 125 flights per month to MidAmerica-St. Louis Airport (BLV), a central gateway.
How can I find cheap tickets to Washington County?
For an unbeatable deal to Washington County, book well in advance. Also make use of Expedia's handy "flexible dates" feature at the top of your search results. This will display prices for the days around your travel dates. In the last seven days, ฿32,475 was the best price for a flight to Washington County.
How much is a flight to Washington County?
The price of a round-trip journey to Washington County in the last seven days varied between ฿32,475 and ฿37,085. If you were journeying one way from Bangkok (BKK), you could have scored a cheap seat from only ฿20,035.
What are the most popular airports to fly into in Washington County?
The primary gateway to Washington County, roughly 125 flights touch down at MidAmerica-St. Louis Airport (BLV) each month. Keep an eye out for a great deal, reserve your seat and prepare to experience this popular region.
How much is a plane ticket to Washington County?
In the last seven days, tickets to Washington County cost between ฿32,475 and ฿37,085. Prices depend on multiple things, particularly the departure time, carrier, cabin class and how early you make your booking.
What is the best time to go to Washington County?
Nashville, Washington County's most well-known city, is a superb destination to tour around at anytime. Don't like cooler weather? Then venture here from June 20 onward in summer, when temperatures fluctuate from 18ºC to 29ºC. March, August and September is when Nashville lures the biggest crowds.
What months are the cheapest to book a flight to Washington County?
February is the most affordable month to secure a seat for your Washington County holiday. Airfares are priciest during the month of December, so avoid this time if possible.

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.

EVA Airways
Thu, 26 Mar - Fri, 17 Apr
BKK
Bangkok
STL
St. Louis
฿32,475 Return, found 1 day ago
฿32,475
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 26 Mar from Bangkok to St. Louis, returning Fri, 17 Apr, priced at ฿32,475 found 1 day ago
*Available to Expedia members.