Cheap Flights to Washington County | Popular Routes to Washington County from HK$1,426

View HK$1,426 flight on Thu, 2 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 HK$1,426 for one-way flights and HK$2,255 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 21 Mar - Tue, 24 Mar
ATL
Atlanta
STL
St. Louis
HK$2,255 Return, found 15 hours ago
HK$2,255
Return
found 15 hours ago
Select Delta flight, departing Sat, 21 Mar from Atlanta to St. Louis, returning Tue, 24 Mar, priced at HK$2,255 found 15 hours ago
American Airlines
Sat, 21 Mar - Tue, 24 Mar
ATL
Atlanta
STL
St. Louis
HK$2,494 Return, found 15 hours ago
HK$2,494
Return
found 15 hours ago
Select American Airlines flight, departing Sat, 21 Mar from Atlanta to St. Louis, returning Tue, 24 Mar, priced at HK$2,494 found 15 hours ago
Delta
Sat, 21 Mar - Tue, 24 Mar
ATL
Atlanta
STL
St. Louis
HK$2,570 Return, found 15 hours ago
HK$2,570
Return
found 15 hours ago
Select Delta flight, departing Sat, 21 Mar from Atlanta to St. Louis, returning Tue, 24 Mar, priced at HK$2,570 found 15 hours ago
Delta
Sat, 21 Mar - Tue, 24 Mar
ATL
Atlanta
STL
St. Louis
HK$2,717 Return, found 15 hours ago
HK$2,717
Return
found 15 hours ago
Select Delta flight, departing Sat, 21 Mar from Atlanta to St. Louis, returning Tue, 24 Mar, priced at HK$2,717 found 15 hours ago
Delta
Fri, 17 Apr - Thu, 23 Apr
LAX
Los Angeles
STL
St. Louis
HK$2,841 Return, found 3 days ago
HK$2,841
Return
found 3 days ago
Select Delta flight, departing Fri, 17 Apr from Los Angeles to St. Louis, returning Thu, 23 Apr, priced at HK$2,841 found 3 days ago
American Airlines
Sat, 21 Mar - Tue, 24 Mar
ATL
Atlanta
STL
St. Louis
HK$2,841 Return, found 15 hours ago
HK$2,841
Return
found 15 hours ago
Select American Airlines flight, departing Sat, 21 Mar from Atlanta to St. Louis, returning Tue, 24 Mar, priced at HK$2,841 found 15 hours ago
United
Sat, 21 Mar - Tue, 24 Mar
ATL
Atlanta
STL
St. Louis
HK$3,109 Return, found 15 hours ago
HK$3,109
Return
found 15 hours ago
Select United flight, departing Sat, 21 Mar from Atlanta to St. Louis, returning Tue, 24 Mar, priced at HK$3,109 found 15 hours ago
Alaska Airlines
Thu, 26 Feb - Wed, 4 Mar
LAX
Los Angeles
STL
St. Louis
HK$3,582 Return, found 18 hours ago
HK$3,582
Return
found 18 hours ago
Select Alaska Airlines flight, departing Thu, 26 Feb from Los Angeles to St. Louis, returning Wed, 4 Mar, priced at HK$3,582 found 18 hours ago
China Airlines
Tue, 6 Oct - Sat, 31 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$6,726 Return, found 1 day ago
HK$6,726
Return
found 1 day ago
Select China Airlines flight, departing Tue, 6 Oct from Hong Kong SAR to St. Louis, returning Sat, 31 Oct, priced at HK$6,726 found 1 day ago
Cathay Pacific
Thu, 9 Apr - Mon, 13 Apr
HKG
Hong Kong SAR
STL
St. Louis
HK$8,480 Return, found 12 hours ago
HK$8,480
Return
found 12 hours ago
Select Cathay Pacific flight, departing Thu, 9 Apr from Hong Kong SAR to St. Louis, returning Mon, 13 Apr, priced at HK$8,480 found 12 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.

China Airlines
Tue, 6 Oct - Sat, 31 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$6,726 Return, found 1 day ago
HK$6,726
Return
found 1 day ago
Select China Airlines flight, departing Tue, 6 Oct from Hong Kong SAR to St. Louis, returning Sat, 31 Oct, priced at HK$6,726 found 1 day 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. HK$2,255 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 HK$2,255 and HK$8,480 in the last seven days. For one-way trips departing from Los Angeles (LAX), the lowest amount paid during this time was HK$1,426.
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.
When is the cheapest time to fly to Washington County?
Fly out on a Tuesday to raise your chances of landing the cheapest flight to Washington County. Mondays are usually the next most affordable day to depart. Saturday is typically the costliest day to fly anywhere.
How much is a plane ticket to Washington County?
Fares to Washington County varied from HK$2,255 to HK$8,480 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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About Washington County

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About Washington County

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