Cheap Flights to Washington County | Popular Routes to Washington County from HK$1,243

View HK$1,243 flight on Wed, 13 May 2026Opens in a new window

Flight 1

Flight 2

Popular airlines to Washington County

  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • Southwest Airlines

  • Alaska Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • 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 HK$1,243 for one-way flights and HK$2,959 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 30 Jun - Wed, 1 Jul
LAX
Los Angeles
STL
St. Louis
HK$2,959 Return, found 1 day ago
HK$2,959
Return
found 1 day ago
Select Delta flight, departing Tue, 30 Jun from Los Angeles to St. Louis, returning Wed, 1 Jul, priced at HK$2,959 found 1 day ago
Delta
Tue, 30 Jun - Wed, 8 Jul
LAX
Los Angeles
STL
St. Louis
HK$3,023 Return, found 1 day ago
HK$3,023
Return
found 1 day ago
Select Delta flight, departing Tue, 30 Jun from Los Angeles to St. Louis, returning Wed, 8 Jul, priced at HK$3,023 found 1 day ago
Delta
Fri, 3 Jul - Wed, 8 Jul
LAX
Los Angeles
STL
St. Louis
HK$3,088 Return, found 1 day ago
HK$3,088
Return
found 1 day ago
Select Delta flight, departing Fri, 3 Jul from Los Angeles to St. Louis, returning Wed, 8 Jul, priced at HK$3,088 found 1 day ago
Delta
Mon, 1 Jun - Tue, 16 Jun
LAX
Los Angeles
STL
St. Louis
HK$3,099 Return, found 1 day ago
HK$3,099
Return
found 1 day ago
Select Delta flight, departing Mon, 1 Jun from Los Angeles to St. Louis, returning Tue, 16 Jun, priced at HK$3,099 found 1 day ago
Delta
Tue, 30 Jun - Thu, 9 Jul
LAX
Los Angeles
STL
St. Louis
HK$3,142 Return, found 1 day ago
HK$3,142
Return
found 1 day ago
Select Delta flight, departing Tue, 30 Jun from Los Angeles to St. Louis, returning Thu, 9 Jul, priced at HK$3,142 found 1 day ago
Delta
Mon, 1 Jun - Sat, 20 Jun
LAX
Los Angeles
STL
St. Louis
HK$3,163 Return, found 1 day ago
HK$3,163
Return
found 1 day ago
Select Delta flight, departing Mon, 1 Jun from Los Angeles to St. Louis, returning Sat, 20 Jun, priced at HK$3,163 found 1 day ago
United
Mon, 1 Jun - Mon, 22 Jun
LAX
Los Angeles
STL
St. Louis
HK$3,464 Return, found 1 day ago
HK$3,464
Return
found 1 day ago
Select United flight, departing Mon, 1 Jun from Los Angeles to St. Louis, returning Mon, 22 Jun, priced at HK$3,464 found 1 day ago
Alaska Airlines
Sun, 19 Jul - Thu, 30 Jul
LAX
Los Angeles
STL
St. Louis
HK$3,808 Return, found 1 day ago
HK$3,808
Return
found 1 day ago
Select Alaska Airlines flight, departing Sun, 19 Jul from Los Angeles to St. Louis, returning Thu, 30 Jul, priced at HK$3,808 found 1 day ago
American Airlines
Thu, 2 Jul - Sun, 12 Jul
CLD
Carlsbad
STL
St. Louis
HK$4,206 Return, found 1 day ago
HK$4,206
Return
found 1 day ago
Select American Airlines flight, departing Thu, 2 Jul from Carlsbad to St. Louis, returning Sun, 12 Jul, priced at HK$4,206 found 1 day ago
Qatar Airways
Wed, 14 Oct - Mon, 26 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$9,092 Return, found 10 hours ago
HK$9,092
Return
found 10 hours ago
Select Qatar Airways flight, departing Wed, 14 Oct from Hong Kong SAR to St. Louis, returning Mon, 26 Oct, priced at HK$9,092 found 10 hours 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.

Delta
Mon, 15 Jun - Sun, 26 Jul
HKG
Hong Kong SAR
STL
St. Louis
HK$8,500 Return, found 5 hours ago
HK$8,500
Return
found 5 hours ago
Select Delta flight, departing Mon, 15 Jun from Hong Kong SAR to St. Louis, returning Sun, 26 Jul, priced at HK$8,500 found 5 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 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, HK$2,959 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 HK$2,959 and HK$9,092. If you were journeying one way from Ontario (ONT), you could have scored a cheap seat from only HK$1,243.
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.
When is the cheapest time to fly to Washington County?
Leave for Washington County early in the week and you'll usually be rewarded with lower-priced fares. Tuesday is generally the cheapest day to hop on a plane, closely followed by Monday. If you'd like to avoid the costliest flights, stay away from Saturdays.
How much is a plane ticket to Washington County?
In the last seven days, tickets to Washington County cost between HK$2,959 and HK$9,092. 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 vacation. Airfares are priciest during the month of December, so avoid this time if possible.

Book with confidence

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.
About Washington County

Explore a world of travel with Expedia

*Available to Expedia members.