Cheap Flights to Washington County | Popular Routes to Washington County from HK$2,092

View HK$2,092 flight on Sat, 14 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 HK$2,092 for one-way flights and HK$3,581 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, 14 Feb - Sat, 21 Feb
CYS
Cheyenne
COU
Columbia
HK$3,581 Return, found 16 hours ago
HK$3,581
Return
found 16 hours ago
Select United flight, departing Sat, 14 Feb from Cheyenne to Columbia, returning Sat, 21 Feb, priced at HK$3,581 found 16 hours ago
United
Sat, 14 Feb - Sat, 21 Feb
CYS
Cheyenne
COU
Columbia
HK$3,829 Return, found 16 hours ago
HK$3,829
Return
found 16 hours ago
Select United flight, departing Sat, 14 Feb from Cheyenne to Columbia, returning Sat, 21 Feb, priced at HK$3,829 found 16 hours ago
United
Sat, 14 Feb - Sat, 21 Feb
CYS
Cheyenne
COU
Columbia
HK$4,464 Return, found 16 hours ago
HK$4,464
Return
found 16 hours ago
Select United flight, departing Sat, 14 Feb from Cheyenne to Columbia, returning Sat, 21 Feb, priced at HK$4,464 found 16 hours ago
United
Sat, 14 Feb - Sat, 21 Feb
CYS
Cheyenne
COU
Columbia
HK$5,097 Return, found 16 hours ago
HK$5,097
Return
found 16 hours ago
Select United flight, departing Sat, 14 Feb from Cheyenne to Columbia, returning Sat, 21 Feb, priced at HK$5,097 found 16 hours ago
United
Sat, 14 Feb - Sat, 21 Feb
CYS
Cheyenne
COU
Columbia
HK$5,163 Return, found 16 hours ago
HK$5,163
Return
found 16 hours ago
Select United flight, departing Sat, 14 Feb from Cheyenne to Columbia, returning Sat, 21 Feb, priced at HK$5,163 found 16 hours ago
United
Sat, 14 Feb - Sat, 21 Feb
CYS
Cheyenne
COU
Columbia
HK$6,075 Return, found 16 hours ago
HK$6,075
Return
found 16 hours ago
Select United flight, departing Sat, 14 Feb from Cheyenne to Columbia, returning Sat, 21 Feb, priced at HK$6,075 found 16 hours ago
China Airlines
Mon, 26 Jan - Sat, 31 Jan
HKG
Hong Kong SAR
STL
St. Louis
HK$7,119 Return, found 8 hours ago
HK$7,119
Return
found 8 hours ago
Select China Airlines flight, departing Mon, 26 Jan from Hong Kong SAR to St. Louis, returning Sat, 31 Jan, priced at HK$7,119 found 8 hours ago
EVA Airways
Thu, 29 Jan - Mon, 2 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$7,843 Return, found 1 day ago
HK$7,843
Return
found 1 day ago
Select EVA Airways flight, departing Thu, 29 Jan from Hong Kong SAR to St. Louis, returning Mon, 2 Feb, priced at HK$7,843 found 1 day ago
Cathay Pacific
Tue, 3 Mar - Tue, 10 Mar
HKG
Hong Kong SAR
STL
St. Louis
HK$8,319 Return, found 6 days ago
HK$8,319
Return
found 6 days ago
Select Cathay Pacific flight, departing Tue, 3 Mar from Hong Kong SAR to St. Louis, returning Tue, 10 Mar, priced at HK$8,319 found 6 days ago
Qatar Airways
Thu, 29 Jan - Mon, 2 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$9,961 Return, found 1 day ago
HK$9,961
Return
found 1 day ago
Select Qatar Airways flight, departing Thu, 29 Jan from Hong Kong SAR to St. Louis, returning Mon, 2 Feb, priced at HK$9,961 found 1 day 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
Mon, 26 Jan - Sat, 31 Jan
HKG
Hong Kong SAR
STL
St. Louis
HK$7,119 Return, found 8 hours ago
HK$7,119
Return
found 8 hours ago
Select China Airlines flight, departing Mon, 26 Jan from Hong Kong SAR to St. Louis, returning Sat, 31 Jan, priced at HK$7,119 found 8 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 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$3,581 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$3,581 and HK$9,961 in the last seven days. For one-way trips departing from Cheyenne (CYS), the lowest amount paid during this time was HK$2,092.
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$3,581 to HK$9,961 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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