Flights To St. Charles County - Cheap Flights Starting at CA $146

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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.

Tue, Oct 6 - Thu, Oct 8
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $263 Roundtrip, found 1 day ago
CA $263
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 6 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Thu, Oct 8, priced at CA $263 found 1 day ago
Fri, Oct 9 - Tue, Oct 13
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $277 Roundtrip, found 1 day ago
CA $277
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Oct 9 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Tue, Oct 13, priced at CA $277 found 1 day ago
Tue, Oct 6 - Fri, Oct 9
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $313 Roundtrip, found 1 day ago
CA $313
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 6 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Fri, Oct 9, priced at CA $313 found 1 day ago
Fri, Oct 9 - Wed, Oct 14
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $327 Roundtrip, found 1 day ago
CA $327
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Oct 9 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Wed, Oct 14, priced at CA $327 found 1 day ago
Wed, Oct 7 - Wed, Oct 14
SEA
Seattle - Tacoma Intl.
STL
Lambert-St. Louis Intl.
CA $404 Roundtrip, found 1 day ago
CA $404
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 7 from Seattle - Tacoma Intl. to Lambert-St. Louis Intl., returning Wed, Oct 14, priced at CA $404 found 1 day ago
Wed, Oct 7 - Sat, Oct 10
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $431 Roundtrip, found 1 day ago
CA $431
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 7 from Vancouver Intl. to Lambert-St. Louis Intl., returning Sat, Oct 10, priced at CA $431 found 1 day ago
Thu, Sep 10 - Tue, Sep 15
YYZ
Pearson Intl.
STL
Lambert-St. Louis Intl.
CA $459 Roundtrip, found 2 days ago
CA $459
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Sep 10 from Pearson Intl. to Lambert-St. Louis Intl., returning Tue, Sep 15, priced at CA $459 found 2 days ago
Tue, Oct 6 - Sun, Oct 11
YVR
Vancouver Intl.
STL
Lambert-St. Louis Intl.
CA $476 Roundtrip, found 1 day ago
CA $476
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 6 from Vancouver Intl. to Lambert-St. Louis Intl., returning Sun, Oct 11, priced at CA $476 found 1 day ago
Fri, Aug 14 - Thu, Aug 20
YHZ
Stanfield Intl.
STL
Lambert-St. Louis Intl.
CA $564 Roundtrip, found 6 days ago
CA $564
Roundtrip
found 6 days ago
Select WestJet flight, departing Fri, Aug 14 from Stanfield Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at CA $564 found 6 days ago
OriginDestinationTravel datesFlights from*
SEASt. LouisOctober 6 to October 13CA $263
PHLSt. LouisSeptember 22 to October 5CA $396
LAXSt. LouisAugust 26 to September 2CA $463
JFKSt. LouisAugust 11 to August 18CA $484
LGASt. LouisAugust 11 to August 18CA $532
DENSt. LouisSeptember 26 to September 27CA $843
DFWSt. LouisOctober 8 to October 12CA $1,067
ATLSt. LouisOctober 7 to October 9CA $1,139
FCOSt. LouisSeptember 23 to September 30CA $1,311
*Prices include taxes and fees
OriginDestinationTravel datesFlights from*
LAXSt. LouisJuly 31 to August 4CA $881
FCOSt. LouisJuly 31 to August 10CA $1,600
ATLSt. LouisAugust 2 to August 4CA $2,221
*Prices include taxes and fees
Price found within the past 48 hours. Click for updated prices.
The Cheshire
4.0-star property

The Cheshire

Oct 1 - Oct 5

4 night stay

Calgary (YYC) to St. Louis (STL)

WestJet • Non-stop roundtrip • Coach
Price was CA $1,403, price is now CA $1,110 per person
CA $1,110
per person
found 1 day ago
Ameristar Casino Resort and Spa
4.5-star property

Ameristar Casino Resort and Spa

Oct 1 - Oct 5

4 night stay

Calgary (YYC) to St. Louis (STL)

WestJet • Non-stop roundtrip • Coach
Price was CA $1,431, price is now CA $1,226 per person
CA $1,226
per person
found 1 day ago
The Royal Sonesta Chase Park Plaza St. Louis
4.5-star property

The Royal Sonesta Chase Park Plaza St. Louis

Oct 1 - Oct 5

4 night stay

Calgary (YYC) to St. Louis (STL)

WestJet • Non-stop roundtrip • Coach
Price was CA $1,745, price is now CA $1,500 per person
CA $1,500
per person
found 1 day ago
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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! (1,023 reviews)
"How professional everyone were"

Reviewed on Jul 27, 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! (4,153 reviews)
"Nice room. Great view and location. Helpful staff"

Reviewed on Jul 28, 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 Forest Park are located nearby.
Opens in a new windowClayton Plaza Hotel & Extended Stay
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Hollywood Casino & Hotel St. Louis

Hollywood Casino & Hotel St. Louis

3.5 out of 5
777 Casino Center Drive Maryland Heights MO
Book a stay at this business-friendly hotel in Maryland Heights. Enjoy free parking, 7 restaurants, and a casino. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Hollywood Casino Amphitheatre and Ameristar Casino St. Charles are located nearby.
8.6/10 Excellent! (2,217 reviews)
"Love staying at this hotel!"

Reviewed on Jul 27, 2026

Opens in a new windowHollywood Casino & Hotel St. Louis
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 $263. 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 October. 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 $263 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 $263 and CA $2,221 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.