Cheap Flights to St. Charles County from $29 (2026/2027)

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How Much Does it Cost To Fly To St. Charles County?

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Fri, Aug 7 - Wed, Aug 12
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$58 Roundtrip, found 2 hours ago
$58
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Aug 7 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Aug 12, priced at $58 found 2 hours ago
Mon, Nov 16 - Mon, Nov 16
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$61 Roundtrip, found 1 day ago
$61
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Nov 16 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Mon, Nov 16, priced at $61 found 1 day ago
Tue, Jul 28 - Tue, Jul 28
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$62 Roundtrip, found 1 day ago
$62
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Jul 28 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Jul 28, priced at $62 found 1 day ago
Thu, Aug 6 - Tue, Aug 11
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$84 Roundtrip, found 1 hour ago
$84
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Aug 6 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Tue, Aug 11, priced at $84 found 1 hour ago
Mon, Sep 21 - Mon, Sep 28
FLL
Fort Lauderdale - Hollywood Intl.
BLV
MidAmerica-St. Louis
$86 Roundtrip, found 7 hours ago
$86
Roundtrip
found 7 hours ago
Select Allegiant Air flight, departing Mon, Sep 21 from Fort Lauderdale - Hollywood Intl. to MidAmerica-St. Louis, returning Mon, Sep 28, priced at $86 found 7 hours ago
Fri, Aug 7 - Wed, Aug 12
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$111 Roundtrip, found 2 hours ago
$111
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Fri, Aug 7 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Aug 12, priced at $111 found 2 hours ago
Tue, Sep 1 - Wed, Sep 2
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$120 Roundtrip, found 2 days ago
$120
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 1 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Wed, Sep 2, priced at $120 found 2 days ago
Tue, Aug 11 - Sat, Aug 15
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$121 Roundtrip, found 5 days ago
$121
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Aug 15, priced at $121 found 5 days ago
OriginDestinationTravel DatesFlights From*
ATLSt. LouisAugust 17 to August 24$58
DFWSt. LouisAugust 15 to August 18$84
DENSt. LouisAugust 6 to August 10$140
TPASt. LouisSeptember 8 to September 9$210
PHLSt. LouisAugust 5 to August 12$215
EWRSt. LouisAugust 4 to August 6$227
LGASt. LouisAugust 4 to August 6$227
SEASt. LouisSeptember 12 to September 19$251
LAXSt. LouisAugust 18 to August 22$268
FCOSt. LouisOctober 1 to October 5$901
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
PIEMascoutahJuly 10 to July 11$330
DFWSt. LouisJuly 11 to July 20$355
TTNSt. LouisJuly 10 to July 13$378
DENSt. LouisJuly 12 to July 17$408
TPASt. LouisJuly 11 to July 22$413
LAXSt. LouisJuly 12 to July 26$432
SEASt. LouisJuly 10 to July 11$452
ATLSt. LouisJuly 11 to July 19$455
LGASt. LouisJuly 10 to July 11$501
LGASt. LouisJuly 10 to July 11$501
FCOSt. LouisJuly 12 to July 20$1,146
*Prices include taxes and fees

Best St. Charles County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
Residence Inn by Marriott St Louis Downtown
3.0-star property

Residence Inn by Marriott St Louis Downtown

Sep 21 - Sep 25

4 night stay

Newark Liberty Intl. Airport (EWR) to St. Louis (STL)

United • Roundtrip • Coach
Save 100% on your flight
Price was $839, price is now $516 per person
$516
per person
found 19 hours ago
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Sep 10 - Sep 13

3 night stay

Newark Liberty Intl. Airport (EWR) to St. Louis (STL)

Delta • Non-stop • Coach

St. Louis (STL) to Newark Liberty Intl. Airport (EWR)

Frontier Airlines • Non-stop • Coach
Price was $848, price is now $573 per person
$573
per person
found 1 day ago
Moonrise Hotel
4.0-star property

Moonrise Hotel

Sep 21 - Sep 25

4 night stay

Newark Liberty Intl. Airport (EWR) to St. Louis (STL)

United • Roundtrip • Coach
Price was $761, price is now $546 per person
$546
per person
found 19 hours ago
Don't see what you're looking for?
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Travelers ❤️ These St. Charles County 🏨

Ameristar Casino Resort and Spa

Ameristar Casino Resort and Spa

4.5 out of 5
1 Ameristar Blvd St. Charles MO
Book a stay at this luxury hotel in St. Charles. Enjoy a full-service spa, 6 restaurants, and a casino. Our guests praise the clean rooms in our reviews. Popular attractions Ameristar Casino St. Charles and Hollywood Casino Amphitheatre are located nearby.
8.6/10 Excellent! (1,006 reviews)
"For the price, this hotel was definitely not worth it. Staff was awesome but our room was dirty, AC didn't work and the bed was extremely uncomfortable. Do not recommend."

Reviewed on Jul 4, 2026

Opens in a new windowAmeristar Casino Resort and Spa
Hyatt Regency St. Louis at The Arch

Hyatt Regency St. Louis at The Arch

4 out of 5
315 Chestnut St St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free WiFi, 3 restaurants, and 2 bars/lounges. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Gateway Arch and Busch Stadium are located nearby.
8.6/10 Excellent! (4,197 reviews)
"Only stayed for a quick overnight but room was nice, clean, and staff was helpful for our late evening check in. Easy walk to the Arch and Busch stadium."

Reviewed on Jul 7, 2026

Opens in a new windowHyatt Regency St. Louis at The Arch
Clayton Plaza Hotel & Extended Stay

Clayton Plaza Hotel & Extended Stay

3.5 out of 5
7750 Carondelet Avenue St. Louis MO
Book a stay at this business-friendly hotel in St. Louis. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and the pool in our reviews. Popular attractions St. Louis Zoo and Saint Louis Galleria Mall are located nearby.
9/10 Wonderful! (3,283 reviews)
"The Clayton Plaza was excellent! From the front desk to the cleanliness of the room to the breakfast it was as a hotel should be! We have stayed here several times and it is always the same. Excellent!"

Reviewed on Jul 8, 2026

Opens in a new windowClayton Plaza Hotel & Extended Stay
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Pear Tree Inn St. Louis Airport

Pear Tree Inn St. Louis Airport

2.5 out of 5
10810 Pear Tree Ln St. Ann MO
Book a stay at this business-friendly hotel in St. Ann. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Westport Plaza and Hollywood Casino Amphitheatre are located nearby.
9.2/10 Wonderful! (3,084 reviews)
"The Pear Tree staff was so welcoming and helpful after Southwest Airlines stranded us overnight without luggage -- toothbrushes, snacks, a very clean and comfortable room to spend the night, a full breakfast, and a fast shuttle."

Reviewed on Jul 8, 2026

Opens in a new windowPear Tree Inn St. Louis Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

How much is the cheapest flight to St. Charles County?
The next vacation you take doesn't have to make a huge dent in your budget. Within the last seven days, the cheapest return flight to St. Charles County cost $58. Find a cheap fare and spend the dollars you save on exciting experiences. This price was available on Travelocity for flights to St. Charles County departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to St. Charles County?
Splurge more money on grand experiences and less on your airfare by going away to St. Charles County in August. This is the cheapest time to jet to this destination based on Travelocity's direct return flight demand from January to December last year. Browse through our selection of flights and enjoy a change of scenery without breaking the bank.
How can I check my flight status to St. Charles County?
Whether you'd like to check the status of your flight to St. Charles County or change your itinerary, you'll find all the necessary details on our handy portal, Trips. Click on "Trips" at the top of the Travelocity homepage, then log in or create a new account. Another handy way to manage all your bookings is with the Travelocity app. Get real-time flight status alerts and easily share details with any friends or family flying with you.
How do I find the best deals on flights to St. Charles County?
Being flexible with your dates is a great way to walk away with an amazing deal. Travelocity makes it a cinch to find your perfect fare through the "Flexible dates" function. First, search for your flight to St. Charles County, then compare the cheapest prices for surrounding days by clicking the Flexible dates box above. Booking ahead of schedule and avoiding vacation periods are other ways to save on fares. In the last seven days, the lowest price for a return flight to St. Charles County was $58 on our site. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to St. Charles County with Travelocity?
If you're hunting for cheap flights to St. Charles County, you'll come across some top deals with Travelocity. From cheap family flights with low-cost air carriers to flexible tickets, we've got it all. Experience a hassle-free trip with our round-the-clock customer assistance, Price Match Guarantee and free cancellations with most hotels and activities. Start planning your travel itinerary and get ready to hop on a plane to this vibrant destination.
What are the most popular flight routes to St. Charles County?
To help you find flights to St. Charles County, here's a list of some of the leading routes:

  • Chicago, IL (ORD-O'Hare Intl.) to Lambert-St. Louis Intl. Airport (STL) - 2,049 flights a month.
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1,503 flights a month.
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1,300 flights a month.

How much is a flight to St. Charles County on average?
Airfares for roundtrip flights to St. Charles County were priced between $58 and $1,146 in the last seven days. As soon as you see an awesome deal, lock it in and get ready to take off on your next fun adventure with Travelocity. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
How long is the average flight to St. Charles County?
To get a feel for the average time of a direct flight to St. Charles County, browse through these popular routes:

  • Chicago, IL (ORD-O'Hare Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 23 minutes
  • Atlanta, GA (ATL-Hartsfield-Jackson Atlanta Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 37 minutes
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Lambert-St. Louis Intl. Airport (STL) - 1 hour and 49 minutes

What can I expect on a flight to St. Charles County?
Factors such as which airline you're jetting off with and where your plane departs from will mostly determine what inclusions and services you can expect. Of course, you'll likely find a range of flights to St. Charles County, from cheap flights for family vacations to first class airfares. Hot meals, entertainment and games for the kids are usually what most airlines offer on long-haul flights.