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

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O'Fallon

Flights
O'Fallon

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

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

Tue, Sep 22 - Sat, Sep 26
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$56 Roundtrip, found 11 hours ago
$56
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Tue, Sep 22 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Sep 26, priced at $56 found 11 hours ago
Wed, Aug 5 - Sat, Aug 8
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 Wed, Aug 5 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Sat, Aug 8, priced at $58 found 2 hours ago
Thu, Sep 10 - Thu, Sep 10
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$61 Roundtrip, found 6 days ago
$61
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Sep 10 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Thu, Sep 10, priced at $61 found 6 days ago
Thu, Nov 5 - Mon, Nov 9
DFW
Dallas-Fort Worth Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 2 hours ago
$108
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Nov 5 from Dallas-Fort Worth Intl. to Lambert-St. Louis Intl., returning Mon, Nov 9, priced at $108 found 2 hours ago
Thu, Oct 8 - Mon, Oct 12
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 1 hour ago
$108
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Oct 8 from Denver Intl. to Lambert-St. Louis Intl., returning Mon, Oct 12, priced at $108 found 1 hour ago
Sat, Sep 5 - Tue, Sep 8
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 Sat, Sep 5 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $120 found 2 days ago
Mon, Sep 14 - Fri, Sep 18
ATL
Hartsfield-Jackson Atlanta Intl.
STL
Lambert-St. Louis Intl.
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Sep 14 from Hartsfield-Jackson Atlanta Intl. to Lambert-St. Louis Intl., returning Fri, Sep 18, priced at $137 just found
Mon, Nov 2 - Mon, Nov 2
MCO
Orlando Intl.
STL
Lambert-St. Louis Intl.
$150 Roundtrip, found 4 days ago
$150
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Mon, Nov 2 from Orlando Intl. to Lambert-St. Louis Intl., returning Mon, Nov 2, priced at $150 found 4 days ago
OriginDestinationTravel DatesFlights From*
DFWSt. LouisSeptember 1 to September 3$111
BNASt. LouisAugust 19 to August 22$117
CLESt. LouisOctober 3 to October 3$117
PGDMascoutahAugust 27 to August 30$159
DCASt. LouisSeptember 15 to September 16$201
CLTSt. LouisAugust 13 to August 17$202
AUSSt. LouisAugust 6 to August 10$214
ORFSt. LouisAugust 15 to August 20$277
PVDSt. LouisAugust 15 to August 17$281
RSWSt. LouisSeptember 21 to September 28$297
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
PGDMascoutahJuly 19 to July 23$251
CLESt. LouisJuly 19 to July 21$294
DFWSt. LouisJuly 19 to July 21$334
DCASt. LouisJuly 19 to July 22$339
BNASt. LouisJuly 18 to July 22$349
CLTSt. LouisJuly 18 to July 22$373
ORFSt. LouisJuly 19 to July 24$747
AUSSt. LouisJuly 18 to August 4$777
RSWSt. LouisJuly 18 to July 22$881
*Prices include taxes and fees

Best St. Clair County Flight and Hotel Packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
3.5-star property

The Wildwood Hotel

Sep 17 - Sep 20

3 night stay

Atlanta (ATL) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Price was $599, price is now $271 per person
$271
per person
found 18 hours ago
Remodeled and Inviting Free EV
2.0-star property

Remodeled and Inviting Free EV

Sep 3 - Sep 7

4 night stay

Atlanta (ATL) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Price was $702, price is now $367 per person
$367
per person
found 21 hours ago
The Cheshire
4.0-star property

The Cheshire

Sep 17 - Sep 20

3 night stay

Atlanta (ATL) to St. Louis (STL)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $561, price is now $332 per person
$332
per person
found 18 hours ago
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Travelers ❤️ These St. Clair County 🏨

Casino Queen Hotel

Casino Queen Hotel

3 out of 5
200 Front Street East St. Louis IL
Book a stay at this business-friendly hotel in East St. Louis. Enjoy free WiFi, free parking, and a casino. Our guests praise the helpful staff and the clean rooms in our reviews. Popular attractions Gateway Arch and Busch Stadium are located nearby.
7.8/10 Good! (2,127 reviews)
"Ty"

Reviewed on Jul 15, 2026

Opens in a new windowCasino Queen Hotel
Drury Inn & Suites St. Louis Fairview Heights

Drury Inn & Suites St. Louis Fairview Heights

3 out of 5
12 Ludwig Dr Fairview Heights IL
Book a stay at this business-friendly hotel in Fairview Heights. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our reviews. Popular attractions St. Claire Square Mall and Stonewolf Golf Course are located nearby.
Opens in a new windowDrury Inn & Suites St. Louis Fairview Heights
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! (4,107 reviews)
"We had no air in our room called, they came and checked on it couldn't get it to stay. They had no other rooms available they did bring us fans but it was still bad. They offered no money back. They did offer us breakfast but I feel like that was already free... April Enlow"

Reviewed on Jul 14, 2026

Opens in a new windowHyatt Regency St. Louis at The Arch
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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! (3,249 reviews)
"The staff was amazing and very helpful. The breakfast was top-notch. The pullout couch in our room was broken, but the staff was so helpful that I have a hard time giving less than five stars. We would stay here anytime."

Reviewed on Jul 15, 2026

Opens in a new windowClayton Plaza Hotel & Extended Stay
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. Clair County?
During the last seven days, the cheapest roundtrip flight to St. Clair County cost $56 on our site. Check out our awesome deals, secure your tickets and prepare for your next travel adventure. This price was available on Travelocity for flights to St. Clair 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. Clair County?
If you're thinking about a getaway in St. Clair County, September is the cheapest month to travel there. This is according to Travelocity's direct return flight demand from January to December last year. Pick your preferred travel dates and secure your seat today.
How can I check my flight status to St. Clair County?
There are a few useful ways to look up your flight status. You'll find all the necessary info in our Trips portal, which is located at the top of our homepage. Log in or open a new account — you'll then be able to browse and manage your bookings whenever you want. For those already on the move, the Travelocity app can also help you look up the status of your flight to St. Clair County, as well as share details with any members of your family flying with you.
How do I find the best deals on flights to St. Clair County?
Pick up a bargain with Travelocity — our "Flexible dates" function makes the process easier. Enter your preferred travel dates, then tap or click on the flexible dates box above your results to see the prices for nearby days. $56 was the best price for a return flight to St. Clair County in the last seven days. 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. Clair County with Travelocity?
If you're hunting for cheap flights to St. Clair County, you'll come across some tempting deals with Travelocity. From cheap family flights on low-cost carriers to flexible tickets, we've got you covered. Experience a stress-free vacation with our 24/7 Virtual Agent online chat, Price Match Guarantee and free cancellations with most hotels and activities. Start packing your suitcase and get set to fly away to this amazing destination.
What are the most popular flight routes to St. Clair County?
As a leading destination, there are plenty of ways to get to St. Clair County. Check out this sample of main routes:

  • Fort Walton Beach, FL (VPS-Northwest Florida Regional) to MidAmerica-St. Louis Airport (BLV) - 73 flights a month.
  • Charleston, SC (CHS-Charleston Intl.) to MidAmerica-St. Louis Airport (BLV) - 26 flights a month.
  • St. Petersburg, FL (PIE-St. Petersburg-Clearwater Intl.) to MidAmerica-St. Louis Airport (BLV) - 21 flights a month.

How much is a flight to St. Clair County on average?
Get your next vacation off to a great start by securing an awesome deal with Travelocity. In the last seven days, roundtrip flights to St. Clair County cost between $56 and $881. Browse our site and lock in a fare that fits in your budget. 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. Clair County?
To get an idea of the average airborne time of a direct flight to St. Clair County, browse through these common routes:

  • Fort Walton Beach, FL (VPS-Northwest Florida Regional) to MidAmerica-St. Louis Airport (BLV) - 1 hour and 44 minutes
  • Charleston, SC (CHS-Charleston Intl.) to MidAmerica-St. Louis Airport (BLV) - 1 hour and 51 minutes
  • St. Petersburg, FL (PIE-St. Petersburg-Clearwater Intl.) to MidAmerica-St. Louis Airport (BLV) - 2 hours and 8 minutes

What can I expect on a flight to St. Clair County?
That all depends on where you're departing from and which air carrier you fly with. There's likely to be a variety of flights to St. Clair County, from business fares to cheap flights for family vacations. If you're traveling long haul, your airline will generally offer warm meals and entertainment as well as games to keep your little ones busy.