Cheap Flights to Washington County | Popular Routes to Washington County from HK$5,150

View HK$5,150 flight on Wed, 14 Oct 2026Opens in a new window

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Cheap round-trip flights to Washington County

Prices were available within the past 7 days and start at HK$5,150 for one-way flights and HK$8,926 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

EVA Airways
Wed, 23 Sept - Tue, 29 Sept
HKG
Hong Kong SAR
STL
St. Louis
HK$8,926 Return, found 4 days ago
HK$8,926
Return
found 4 days ago
Select EVA Airways flight, departing Wed, 23 Sept from Hong Kong SAR to St. Louis, returning Tue, 29 Sept, priced at HK$8,926 found 4 days ago
EVA Airways
Wed, 14 Oct - Wed, 21 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$8,928 Return, found 10 hours ago
HK$8,928
Return
found 10 hours ago
Select EVA Airways flight, departing Wed, 14 Oct from Hong Kong SAR to St. Louis, returning Wed, 21 Oct, priced at HK$8,928 found 10 hours ago
EVA Airways
Wed, 28 Oct - Sun, 1 Nov
HKG
Hong Kong SAR
STL
St. Louis
HK$9,168 Return, found 10 hours ago
HK$9,168
Return
found 10 hours ago
Select EVA Airways flight, departing Wed, 28 Oct from Hong Kong SAR to St. Louis, returning Sun, 1 Nov, priced at HK$9,168 found 10 hours ago
EVA Airways
Wed, 7 Oct - Sat, 17 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$9,398 Return, found 13 hours ago
HK$9,398
Return
found 13 hours ago
Select EVA Airways flight, departing Wed, 7 Oct from Hong Kong SAR to St. Louis, returning Sat, 17 Oct, priced at HK$9,398 found 13 hours ago
Qatar Airways
Mon, 20 Apr - Mon, 27 Apr
HKG
Hong Kong SAR
STL
St. Louis
HK$9,674 Return, found 4 days ago
HK$9,674
Return
found 4 days ago
Select Qatar Airways flight, departing Mon, 20 Apr from Hong Kong SAR to St. Louis, returning Mon, 27 Apr, priced at HK$9,674 found 4 days ago
Qatar Airways
Fri, 17 Apr - Mon, 27 Apr
HKG
Hong Kong SAR
STL
St. Louis
HK$9,677 Return, found 6 days ago
HK$9,677
Return
found 6 days ago
Select Qatar Airways flight, departing Fri, 17 Apr from Hong Kong SAR to St. Louis, returning Mon, 27 Apr, priced at HK$9,677 found 6 days ago
Qatar Airways
Fri, 17 Apr - Mon, 27 Apr
HKG
Hong Kong SAR
STL
St. Louis
HK$9,764 Return, found 4 days ago
HK$9,764
Return
found 4 days ago
Select Qatar Airways flight, departing Fri, 17 Apr from Hong Kong SAR to St. Louis, returning Mon, 27 Apr, priced at HK$9,764 found 4 days ago
Cathay Pacific
Wed, 14 Oct - Wed, 21 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$10,160 Return, found 10 hours ago
HK$10,160
Return
found 10 hours ago
Select Cathay Pacific flight, departing Wed, 14 Oct from Hong Kong SAR to St. Louis, returning Wed, 21 Oct, priced at HK$10,160 found 10 hours ago
Delta
Wed, 14 Oct - Wed, 21 Oct
HKG
Hong Kong SAR
STL
St. Louis
HK$10,943 Return, found 10 hours ago
HK$10,943
Return
found 10 hours ago
Select Delta flight, departing Wed, 14 Oct from Hong Kong SAR to St. Louis, returning Wed, 21 Oct, priced at HK$10,943 found 10 hours ago
Korean Air
Wed, 23 Sept - Tue, 29 Sept
HKG
Hong Kong SAR
STL
St. Louis
HK$11,842 Return, found 4 days ago
HK$11,842
Return
found 4 days ago
Select Korean Air flight, departing Wed, 23 Sept from Hong Kong SAR to St. Louis, returning Tue, 29 Sept, priced at HK$11,842 found 4 days 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.

EVA Airways
Wed, 23 Sept - Tue, 29 Sept
HKG
Hong Kong SAR
STL
St. Louis
HK$8,926 Return, found 4 days ago
HK$8,926
Return
found 4 days ago
Select EVA Airways flight, departing Wed, 23 Sept from Hong Kong SAR to St. Louis, returning Tue, 29 Sept, priced at HK$8,926 found 4 days 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$8,926 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$8,926 and HK$11,842 in the last seven days. For one-way trips departing from Hong Kong SAR (HKG), the lowest amount paid during this time was HK$5,150.
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$8,926 to HK$11,842 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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