$65+ Cheap flights from Cincinnati to St. Louis (CVG - STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Find cheap flights from Cincinnati to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
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One-way
Cheapest flights from Cincinnati to St. LouisExplore the most affordable flight options available from Cincinnati to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from Cincinnati to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:43 pm -
1 stop5h 57m
Mon 10/196:35 pm -
1 stop16h 03m
Deal found 9/12![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:11 pm -
1 stop25h 29m
Mon 10/126:35 pm -
1 stop16h 03m
Deal found 9/13![Frontier logo]()
$237
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:50 am -
1 stop5h 53m
Thu 10/156:00 am -
1 stop4h 11m
Deal found 9/14![United Airlines logo]()
$244
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am -
1 stop4h 48m
Sat 10/105:36 pm -
1 stop5h 23m
Deal found 9/16![United Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:04 pm -
1 stop4h 15m
Tue 10/1311:31 am -
1 stop6h 50m
Deal found 9/12![American Airlines logo]()
$255
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:04 pm -
1 stop4h 15m
Mon 10/125:27 pm -
1 stop6h 29m
Deal found 9/16![American Airlines logo]()
$282
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:25 pm -
1 stop4h 18m
Tue 11/36:50 pm -
1 stop3h 52m
Deal found 9/14![United Airlines logo]()
$295
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:33 pm -
1 stop10h 43m
Mon 11/24:26 pm -
1 stop6h 27m
Deal found 9/15![Frontier logo]()
$296
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:10 am -
2 stops8h 50m
Thu 10/155:25 am -
1 stop3h 30m
Deal found 9/14![Southwest logo]()
$297
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 pm -
1 stop4h 00m
Tue 10/132:25 pm -
2 stops5h 50m
Deal found 9/12![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:40 pm -
2 stops6h 50m
Tue 11/32:25 pm -
1 stop5h 00m
Deal found 9/15![Southwest logo]()
$310
Best flights from Cincinnati to St. LouisDiscover carefully curated flight deals from Cincinnati to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Cincinnati to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:50 am -
1 stop5h 53m
Thu 10/156:00 am -
1 stop4h 11m
Deal found 9/14![United Airlines logo]()
$244
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:35 am -
2 stops7h 20m
Thu 10/225:25 am -
1 stop3h 30m
Deal found 9/14![Southwest logo]()
$328
This Expedia deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:00 am -
1 stop9h 34m
Fri 10/25:19 pm -
1 stop5h 32m
Deal found 9/13![Frontier logo]()
$375
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:10 am -
1 stop5h 33m
Tue 11/37:30 am -
1 stop4h 37m
Deal found 9/15![United Airlines logo]()
$295
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/118:20 pm -
1 stop3h 25m
Sun 12/132:00 pm -
2 stops7h 25m
Deal found 9/15![Southwest logo]()
$331
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:55 am -
1 stop6h 34m
Mon 11/29:40 am -
1 stop6h 45m
Deal found 9/14![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:15 am -
1 stop4h 15m
Sun 12/139:40 am -
1 stop3h 50m
Deal found 9/15![United Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:05 am -
2 stops8h 15m
Tue 10/132:25 pm -
2 stops5h 50m
Deal found 9/12![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:45 am -
2 stops6h 50m
Sun 10/115:45 am -
2 stops7h 55m
Deal found 9/15![Southwest logo]()
$453
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am -
2 stops9h 10m
Sat 10/311:55 am -
2 stops5h 35m
Deal found 9/14![Southwest logo]()
$499
Last-minute flights from Cincinnati to St. LouisDiscover last-minute flight deals from Cincinnati to St. Louis. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated September 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:43 pm -
2 stops23h 49m
Fri 10/22:29 pm -
1 stop20h 09m
Deal found 9/13![Frontier logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:11 pm -
1 stop25h 29m
Mon 10/126:35 pm -
1 stop16h 03m
Deal found 9/13![Frontier logo]()
$237
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:04 pm -
1 stop4h 15m
Mon 10/125:27 pm -
1 stop6h 29m
Deal found 9/16![American Airlines logo]()
$282
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am -
1 stop4h 48m
Sat 10/105:36 pm -
1 stop5h 23m
Deal found 9/16![United Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:43 pm -
1 stop5h 57m
Mon 10/196:35 pm -
1 stop16h 03m
Deal found 9/12![Frontier logo]()
$104
This American Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/129:04 pm -
1 stop4h 15m
Tue 10/1311:31 am -
1 stop6h 50m
Deal found 9/12![American Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:20 pm -
1 stop4h 00m
Tue 10/132:25 pm -
2 stops5h 50m
Deal found 9/12![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:50 am -
1 stop5h 53m
Thu 10/156:00 am -
1 stop4h 11m
Deal found 9/14![United Airlines logo]()
$244
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:10 am -
2 stops8h 50m
Thu 10/155:25 am -
1 stop3h 30m
Deal found 9/14![Southwest logo]()
$297
This KAYAK deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:00 am -
1 stop3h 53m
Thu 10/226:47 am -
1 stop5h 49m
Deal found 9/14![Delta logo]()
$295
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:33 pm -
1 stop10h 43m
Mon 11/24:26 pm -
1 stop6h 27m
Deal found 9/15![Frontier logo]()
$296
One-way flights from Cincinnati to St. LouisSearch for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:43 pm -
1 stop5h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$65
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:08 pm -
1 stop5h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$117
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:20 pm -
1 stop5h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Southwest logo]()
$133
This CheapOair deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/278:56 pm -
1 stop20h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$158
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:56 pm -
1 stop21h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:29 am -
2 stops31h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$164
This Expedia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:19 pm -
1 stop27h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$173
This American Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:04 pm -
1 stop4h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![American Airlines logo]()
$179
This CheapOair deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:16 pm -
1 stop27h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$188
This Expedia deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:00 am -
1 stop10h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$221
Find flight deals from Cincinnati to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Cincinnati (CVG) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $104 (Kiwi.com) |
One-way from | $65 (Kiwi.com) |
Popular in | September |
Cheapest in | January |
Average price | $572 |
Cheapflights Fare Finder
Customize your flight search to find flights from Cincinnati to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 16, 2026.
Use the filters below to find and compare flights from Cincinnati to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sat 10/10
6:08 pm-10:58 pm
1 stop5h 50m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$117
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 10/5
7:20 pm-11:40 pm
1 stop5h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$133
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 9/27
8:56 pm-4:34 pm
1 stop20h 38m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$158
Quickest round-trip
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 10/18
9:04 pm-12:19 am
1 stop4h 15m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$179
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 9/25
5:16 pm-7:17 pm
1 stop27h 01m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$188
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 9/24
8:00 am-5:54 pm
1 stop10h 54m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$221
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 10/13
10:50 am-3:43 pm
1 stop5h 53m
Lambert-St Louis
Thu 10/15
6:00 am-11:11 am
1 stop4h 11m
$244
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 9/27
5:00 am-8:30 am
1 stop4h 30m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$245
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 11/1
11:10 am-3:43 pm
1 stop5h 33m
Lambert-St Louis
Tue 11/3
7:30 am-1:07 pm
1 stop4h 37m
$295
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 10/29
8:55 am-2:29 pm
1 stop6h 34m
Lambert-St Louis
Mon 11/2
9:40 am-5:25 pm
1 stop6h 45m
$325
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Cincinnati to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cincinnati to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Cincinnati-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cincinnati-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cincinnati-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Cincinnati-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cincinnati-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Cincinnati to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Cincinnati with our price prediction graph.
CVG-STL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Cincinnati to St. Louis
Prices
More
What’s the top layover airport for flights from Cincinnati to St. Louis?
Share of 1-stop round-trip flights from Cincinnati to St. Louis chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from Cincinnati to St. Louis on Cheapflights.
What’s the cheapest layover airport for flights from Cincinnati to St. Louis?
Average round-trip fare for 1-stop flights from Cincinnati to St. Louis, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $238.
What’s the fastest layover option from Cincinnati to St. Louis?
Shortest average travel time for 1-stop one-way flights from Cincinnati to St. Louis, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 3h 55m.
Which airport typically offers the quickest layover for flights from Cincinnati to St. Louis?
Average layover duration for 1-stop one-way flights from Cincinnati to St. Louis, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 1h 18m.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 16, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Cincinnati to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Crew
8.6
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Related info for your journey
Find useful and relevant information for your journey from Cincinnati to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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Top 4 airlines flying from Cincinnati to St. Louis
Discover the top 4 airlines that operate flights from Cincinnati to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$249 | Average$367 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$365 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$281 | Average$393 | FlexibilityNo cancel fee | On-timeN/A |