Cheap flights to St. Charles County

View €87 flight on Thu, 5 Mar 2026Opens in a new window

Popular airlines to St. Charles County

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  • Delta

  • United

  • Southwest Airlines

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  • 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 €87 for one-way flights and €163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 31 Mar - Sat, 18 Apr
DEN
Denver
STL
St. Louis
€163 Return, found 3 hours ago
€163
Return
found 3 hours ago
Select Delta flight, departing Tue, 31 Mar from Denver to St. Louis, returning Sat, 18 Apr, priced at €163 found 3 hours ago
American Airlines
Thu, 5 Mar - Mon, 9 Mar
MKE
Milwaukee
STL
St. Louis
€174 Return, found 22 hours ago
€174
Return
found 22 hours ago
Select American Airlines flight, departing Thu, 5 Mar from Milwaukee to St. Louis, returning Mon, 9 Mar, priced at €174 found 22 hours ago
United
Thu, 2 Apr - Tue, 21 Apr
DEN
Denver
STL
St. Louis
€217 Return, found 3 hours ago
€217
Return
found 3 hours ago
Select United flight, departing Thu, 2 Apr from Denver to St. Louis, returning Tue, 21 Apr, priced at €217 found 3 hours ago
American Airlines
Wed, 25 Mar - Sun, 29 Mar
LGA
New York
STL
St. Louis
€236 Return, found 4 days ago
€236
Return
found 4 days ago
Select American Airlines flight, departing Wed, 25 Mar from New York to St. Louis, returning Sun, 29 Mar, priced at €236 found 4 days ago
American Airlines
Thu, 9 Apr - Thu, 16 Apr
EWR
New York
STL
St. Louis
€246 Return, found 6 days ago
€246
Return
found 6 days ago
Select American Airlines flight, departing Thu, 9 Apr from New York to St. Louis, returning Thu, 16 Apr, priced at €246 found 6 days ago
Delta
Wed, 1 Jul - Sun, 5 Jul
JFK
New York
STL
St. Louis
€294 Return, found 13 hours ago
€294
Return
found 13 hours ago
Select Delta flight, departing Wed, 1 Jul from New York to St. Louis, returning Sun, 5 Jul, priced at €294 found 13 hours ago
Lufthansa
Wed, 4 Mar - Tue, 24 Mar
BUD
Budapest
STL
St. Louis
€535 Return, found 5 days ago
€535
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 4 Mar from Budapest to St. Louis, returning Tue, 24 Mar, priced at €535 found 5 days ago
Lufthansa
Wed, 4 Mar - Tue, 24 Mar
BUD
Budapest
STL
St. Louis
€535 Return, found 5 days ago
€535
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 4 Mar from Budapest to St. Louis, returning Tue, 24 Mar, priced at €535 found 5 days ago
Austrian Airlines
Wed, 4 Mar - Tue, 24 Mar
BUD
Budapest
STL
St. Louis
€552 Return, found 5 days ago
€552
Return
found 5 days ago
Select Austrian Airlines flight, departing Wed, 4 Mar from Budapest to St. Louis, returning Tue, 24 Mar, priced at €552 found 5 days ago
Iberia
Wed, 4 Mar - Wed, 5 Aug
BUD
Budapest
STL
St. Louis
€575 Return, found 5 days ago
€575
Return
found 5 days ago
Select Iberia flight, departing Wed, 4 Mar from Budapest to St. Louis, returning Wed, 5 Aug, priced at €575 found 5 days 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, €163 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 Milwaukee (MKE) sold for as low as €87 in the last seven days. During this time, the price of a return airfare to St. Charles County varied between €163 and €640. 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.
How much is a plane ticket to St. Charles County?
In the last seven days, plane tickets to St. Charles County fluctuated from €163 to €640.
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.

Aer Lingus
Tue, 21 Apr - Fri, 8 May
DUB
Dublin
STL
St. Louis
€640 Return, found 4 days ago
€640
Return
found 4 days ago
Select Aer Lingus flight, departing Tue, 21 Apr from Dublin to St. Louis, returning Fri, 8 May, priced at €640 found 4 days ago
*Available to Expedia members.