Cheap Flights to St. Charles County | Popular Routes to St. Charles County from HK$4,013

View HK$4,013 flight on Thu, 29 Jan 2026Opens in a new window

Popular airlines to St. Charles County

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  • Southwest Airlines

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  • Frontier Airlines

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  • Alaska Airlines

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  • Air Canada

    Air Canada

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Cheap round-trip flights to St. Charles County

Prices were available within the past 7 days and start at HK$4,013 for one-way flights and HK$7,119 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Airlines
Mon, 6 Apr - Thu, 9 Apr
HKG
Hong Kong SAR
STL
St. Louis
HK$7,119 Return, found 3 hours ago
HK$7,119
Return
found 3 hours ago
Select China Airlines flight, departing Mon, 6 Apr from Hong Kong SAR to St. Louis, returning Thu, 9 Apr, priced at HK$7,119 found 3 hours ago
China Airlines
Tue, 20 Jan - Mon, 16 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$7,419 Return, found 1 day ago
HK$7,419
Return
found 1 day ago
Select China Airlines flight, departing Tue, 20 Jan from Hong Kong SAR to St. Louis, returning Mon, 16 Feb, priced at HK$7,419 found 1 day ago
China Airlines
Thu, 29 Jan - Mon, 2 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$7,483 Return, found 1 day ago
HK$7,483
Return
found 1 day ago
Select China Airlines flight, departing Thu, 29 Jan from Hong Kong SAR to St. Louis, returning Mon, 2 Feb, priced at HK$7,483 found 1 day ago
China Airlines
Mon, 25 May - Sat, 13 Jun
HKG
Hong Kong SAR
STL
St. Louis
HK$7,589 Return, found 6 hours ago
HK$7,589
Return
found 6 hours ago
Select China Airlines flight, departing Mon, 25 May from Hong Kong SAR to St. Louis, returning Sat, 13 Jun, priced at HK$7,589 found 6 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
EVA Airways
Mon, 26 Jan - Sat, 31 Jan
HKG
Hong Kong SAR
STL
St. Louis
HK$8,009 Return, found 14 hours ago
HK$8,009
Return
found 14 hours ago
Select EVA Airways flight, departing Mon, 26 Jan from Hong Kong SAR to St. Louis, returning Sat, 31 Jan, priced at HK$8,009 found 14 hours ago
Etihad Airways
Sat, 17 Jan - Wed, 21 Jan
AUH
Abu Dhabi
STL
St. Louis
HK$8,240 Return, found 1 day ago
HK$8,240
Return
found 1 day ago
Select Etihad Airways flight, departing Sat, 17 Jan from Abu Dhabi to St. Louis, returning Wed, 21 Jan, priced at HK$8,240 found 1 day ago
China Airlines
Thu, 29 Jan - Mon, 2 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$8,256 Return, found 1 day ago
HK$8,256
Return
found 1 day ago
Select China Airlines flight, departing Thu, 29 Jan from Hong Kong SAR to St. Louis, returning Mon, 2 Feb, priced at HK$8,256 found 1 day ago
Cathay Pacific
Thu, 29 Jan - Mon, 2 Feb
HKG
Hong Kong SAR
STL
St. Louis
HK$8,469 Return, found 1 day ago
HK$8,469
Return
found 1 day ago
Select Cathay Pacific flight, departing Thu, 29 Jan from Hong Kong SAR to St. Louis, returning Mon, 2 Feb, priced at HK$8,469 found 1 day 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

About St. Charles County

Expedia offers flights to St. Charles County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to St. Charles 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 St. Charles County that have flexible change policies?
We understand that things can change from one minute to the next, so booking a flexible ticket with Expedia is always a clever idea. Simply mark the "No change fee" box directly below the "Flexible change policies" filter. Your low-priced, flexible flight to St. Charles County is just a few clicks away.
Which airlines fly to St. Charles County?
When you're ready to reserve your seat to or near St. Charles County, these well-known carriers are waiting to welcome you on board:

  • Southwest Airlines - 2,214 flights to or near St. Charles County each month, including 2,214 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 789 flights to or near St. Charles County each month, including 789 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • Delta Air Lines - 650 flights to or near St. Charles County each month, including 650 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to St. Charles County?
An excellent strategy for walking away with cheap fares is to be flexible with your travel dates. Start by searching for your flight to St. Charles County, then click on the "flexible dates" link for a list of prices for nearby days. Want another tip? Book well ahead of time. To give you an idea of costs, HK$7,119 was the lowest price for a flight to St. Charles County in the last seven days.
How much is a flight to St. Charles County?
One-way flights taking off from Hong Kong SAR (HKG) sold for as low as HK$4,013 in the last seven days. During this time, the price of a return airfare to St. Charles County varied between HK$7,119 and HK$9,961. If you find a deal, book as fast as you can — these fares don't stick around for long.
What are the most popular airports to fly into in St. Charles County?
Get ready to pack your bags and jet into Lambert-St. Louis Intl. Airport (STL), St. Charles County's leading flight hub. Lock in a seat on one of the 4,902 flights that land at this popular destination each month.
When is the cheapest time to fly to St. Charles County?
Fly out on a Tuesday to raise your chances of bagging the cheapest deal to St. Charles County. Mondays are usually the second most affordable day to take off. Saturday is typically the most expensive day to fly anywhere.
How much is a plane ticket to St. Charles County?
In the last seven days, plane tickets to St. Charles County fluctuated from HK$7,119 to HK$9,961.
What is the best time to go to St. Charles County?
Foristell, St. Charles County's most prominent city, is a terrific destination to explore at anytime. Not a big fan of chilly weather? Then journey here from June 20 onward during the summer months, when average temperatures vary from 18ºC to 29ºC. March, April and May is when Foristell is really buzzing.
What months are the cheapest to book a flight to St. Charles County?
A cheap month to score a fantastic deal to St. Charles County is February, whereas prices are at their highest in December. Keep clear of this month if you're on a tight budget.

Trending flights to St. Charles 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, 6 Apr - Thu, 9 Apr
HKG
Hong Kong SAR
STL
St. Louis
HK$7,119 Return, found 3 hours ago
HK$7,119
Return
found 3 hours ago
Select China Airlines flight, departing Mon, 6 Apr from Hong Kong SAR to St. Louis, returning Thu, 9 Apr, priced at HK$7,119 found 3 hours ago
*Available to Expedia members.