Flights To St. Charles County - Cheap Flights Starting at CA $173

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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.

Wed, Aug 5 - Sat, Aug 8
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
CA $245 Roundtrip, found 5 days ago
CA $245
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Aug 5 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at CA $245 found 5 days ago
Wed, Jul 1 - Wed, Jul 8
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
CA $323 Roundtrip, found 17 hours ago
CA $323
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Jul 1 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Wed, Jul 8, priced at CA $323 found 17 hours ago
Sun, Aug 23 - Sat, Aug 29
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
CA $341 Roundtrip, found 6 days ago
CA $341
Roundtrip
found 6 days ago
Select United flight, departing Sun, Aug 23 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Sat, Aug 29, priced at CA $341 found 6 days ago
Tue, Jun 23 - Tue, Jun 30
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $363 Roundtrip, found 3 days ago
CA $363
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 23 from Vancouver Intl. to Lambert-St. Louis Intl., returning Tue, Jun 30, priced at CA $363 found 3 days ago
Thu, Aug 6 - Mon, Aug 10
PDX
Portland Intl.
STL
Lambert-St. Louis Intl.
CA $440 Roundtrip, found 6 hours ago
CA $440
Roundtrip
found 6 hours ago
Select Delta flight, departing Thu, Aug 6 from Portland Intl. to Lambert-St. Louis Intl., returning Mon, Aug 10, priced at CA $440 found 6 hours ago
Fri, Jun 19 - Sat, Jun 20
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $488 Roundtrip, found 5 days ago
CA $488
Roundtrip
found 5 days ago
Select WestJet flight, departing Fri, Jun 19 from Vancouver Intl. to Lambert-St. Louis Intl., returning Sat, Jun 20, priced at CA $488 found 5 days ago
Tue, Jun 23 - Tue, Jun 30
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $489 Roundtrip, found 3 days ago
CA $489
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Jun 23 from Vancouver Intl. to Lambert-St. Louis Intl., returning Tue, Jun 30, priced at CA $489 found 3 days ago
Fri, Nov 6 - Wed, Nov 11
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $548 Roundtrip, found 1 day ago
CA $548
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Nov 6 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Wed, Nov 11, priced at CA $548 found 1 day ago
Mon, Jun 29 - Mon, Jul 6
YYZ
Pearson Intl.
STL
Lambert-St. Louis Intl.
CA $574 Roundtrip, found 2 days ago
CA $574
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Jun 29 from Pearson Intl. to Lambert-St. Louis Intl., returning Mon, Jul 6, priced at CA $574 found 2 days ago
Wed, Aug 12 - Tue, Aug 18
YUL
Pierre Elliott Trudeau Intl.
STL
Lambert-St. Louis Intl.
CA $610 Roundtrip, found 21 hours ago
CA $610
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Wed, Aug 12 from Pierre Elliott Trudeau Intl. to Lambert-St. Louis Intl., returning Tue, Aug 18, priced at CA $610 found 21 hours ago
OriginDestinationTravel datesFlights from*
LGASt. LouisJuly 7 to July 10CA $468
LGASt. LouisJuly 7 to July 10CA $468
SEASt. LouisJuly 2 to July 8CA $561
LAXSt. LouisAugust 11 to August 13CA $633
DENSt. LouisAugust 27 to August 30CA $957
DFWSt. LouisJuly 23 to July 26CA $1,289
ATLSt. LouisJune 22 to June 23CA $1,404
TPASt. LouisJuly 16 to July 19CA $1,946
*Prices include taxes and fees
OriginDestinationTravel datesFlights from*
ATLSt. LouisJune 6 to June 8CA $2,233
*Prices include taxes and fees
Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Jul 31 - Aug 2

2 night stay

Kitchener (YKF) to St. Louis (STL)

Air Canada • Non-stop roundtrip • Coach
Price was CA $1,261, price is now CA $993 per person
CA $993
per person
found 1 day ago
Moonrise Hotel
4.0-star property

Moonrise Hotel

Jul 31 - Aug 2

2 night stay

Kitchener (YKF) to St. Louis (STL)

Air Canada • Non-stop roundtrip • Coach
Price was CA $1,361, price is now CA $1,167 per person
CA $1,167
per person
found 1 day ago
Fairfield Inn by Marriott St. Louis Collinsville, IL
3.0-star property

Fairfield Inn by Marriott St. Louis Collinsville, IL

Jul 31 - Aug 2

2 night stay

Kitchener (YKF) to St. Louis (STL)

Air Canada • Non-stop roundtrip • Coach
Price was CA $1,235, price is now CA $1,060 per person
CA $1,060
per person
found 1 day 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! (1,002 reviews)
"Thoroughly enjoyed my stay. The rooms were beautiful and clean. Staff was very attentive and helpful. Cost was reasonable. The unstated $100 hold was not uncommon but not always a welcome surprise at the check in desk."

Reviewed on Jun 4, 2026

Opens in a new windowAmeristar Casino Resort and Spa
WoodSpring Suites St Peters-OFallon

WoodSpring Suites St Peters-OFallon

2.5 out of 5
7850 Veterans Memorial Parkway St. Peters MO
Stay at this hotel in St. Peters. Enjoy free WiFi, free parking, and a 24-hour front desk. Popular attractions Bowlero St. Peters and CarShield Field are located nearby.
8.6/10 Excellent! (143 reviews)
"Large room. Accessibility for bathroom and shower needs were excellent for older people in our group."

Reviewed on Jun 2, 2026

Opens in a new windowWoodSpring Suites St Peters-OFallon
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! (4,075 reviews)
"Great clean"

Reviewed on Jun 3, 2026

Opens in a new windowHyatt Regency St. Louis at The Arch
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Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

Heritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham

3 out of 5
1088 South Highway Drive Fenton MO
Book a stay at this business-friendly hotel in Fenton. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions Simpson Park and LIFECHURCH are located nearby.
7.8/10 Good! (1,328 reviews)
"The place looks nice but I believe there is poor management, we had to put a deposit down like all rooms but still haven’t received it back. When we walked up to our room it was open like they weren’t done cleaning. We didn’t have a comforter just a sheet on the bed, when asked about getting one ..."

Reviewed on Jun 2, 2026

Opens in a new windowHeritage Inn & Suites St. Louis/Fenton, Trademark by Wyndham
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 CA $245. 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 CA $245 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 CA $245 and CA $2,233 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.