Cheap Flights to St. Charles County from ₩115,100

View ₩115,100 flight on Tue, Mar 3, 2026Opens in a new window

Popular airlines to St. Charles County

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

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How much is the cheapest flight to St. Charles County?

Prices were available within the past 7 days and start at ₩115,100 for one-way flights and ₩230,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Mar 10 - Tue, Mar 24
ORD
Chicago
STL
St. Louis
₩230,000 Roundtrip, found 1 day ago
₩230,000
Roundtrip
found 1 day ago
Select United flight, departing Tue, Mar 10 from Chicago to St. Louis, returning Tue, Mar 24, priced at ₩230,000 found 1 day ago
Delta
Mon, Mar 9 - Tue, Mar 24
ORD
Chicago
STL
St. Louis
₩269,000 Roundtrip, found 1 day ago
₩269,000
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Mar 9 from Chicago to St. Louis, returning Tue, Mar 24, priced at ₩269,000 found 1 day ago
Delta
Sun, Mar 8 - Tue, Mar 24
ORD
Chicago
STL
St. Louis
₩283,800 Roundtrip, found 1 day ago
₩283,800
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Mar 8 from Chicago to St. Louis, returning Tue, Mar 24, priced at ₩283,800 found 1 day ago
United
Tue, Mar 10 - Thu, Mar 26
ORD
Chicago
STL
St. Louis
₩284,200 Roundtrip, found 1 day ago
₩284,200
Roundtrip
found 1 day ago
Select United flight, departing Tue, Mar 10 from Chicago to St. Louis, returning Thu, Mar 26, priced at ₩284,200 found 1 day ago
Delta
Mon, Mar 9 - Mon, Mar 23
ORD
Chicago
STL
St. Louis
₩294,000 Roundtrip, found 1 day ago
₩294,000
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Mar 9 from Chicago to St. Louis, returning Mon, Mar 23, priced at ₩294,000 found 1 day ago
American Airlines
Sun, Mar 29 - Tue, Apr 14
ORD
Chicago
STL
St. Louis
₩298,800 Roundtrip, found 1 day ago
₩298,800
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Mar 29 from Chicago to St. Louis, returning Tue, Apr 14, priced at ₩298,800 found 1 day ago
Delta
Sun, Mar 8 - Mon, Mar 23
ORD
Chicago
STL
St. Louis
₩308,600 Roundtrip, found 1 day ago
₩308,600
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Mar 8 from Chicago to St. Louis, returning Mon, Mar 23, priced at ₩308,600 found 1 day ago
Delta
Thu, Apr 2 - Fri, Apr 17
ORD
Chicago
STL
St. Louis
₩323,300 Roundtrip, found 1 day ago
₩323,300
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Apr 2 from Chicago to St. Louis, returning Fri, Apr 17, priced at ₩323,300 found 1 day ago
Air Canada
Tue, Mar 10 - Tue, Mar 24
ICN
Seoul
STL
St. Louis
₩1,264,000 Roundtrip, found 3 days ago
₩1,264,000
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Mar 10 from Seoul to St. Louis, returning Tue, Mar 24, priced at ₩1,264,000 found 3 days ago
Korean Air
Mon, Feb 23 - Mon, Mar 2
ICN
Seoul
STL
St. Louis
₩1,840,900 Roundtrip, found 4 days ago
₩1,840,900
Roundtrip
found 4 days ago
Select Korean Air flight, departing Mon, Feb 23 from Seoul to St. Louis, returning Mon, Mar 2, priced at ₩1,840,900 found 4 days ago

About St. Charles County

Expedia offers flights to St. Charles County to meet every traveler'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, ₩230,000 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 Chicago (ORD) sold for as low as ₩115,100 in the last seven days. During this time, the price of a return airfare to St. Charles County varied between ₩230,000 and ₩1,840,900. 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 ₩230,000 to ₩1,840,900.
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 65ºF to 85ºF. 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, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Feb 23 - Sun, Mar 1
ICN
Seoul
STL
St. Louis
₩1,242,900 Roundtrip, found 2 days ago
₩1,242,900
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Feb 23 from Seoul to St. Louis, returning Sun, Mar 1, priced at ₩1,242,900 found 2 days ago
*Available to Expedia members.