$60+ Cheap flights from Cincinnati to St. Louis (CVG - STL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
May 17 — May 241
Round-trip
1 adult, Economy
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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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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 April 17, 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 April 17, 2026.
This Priceline deal was found by Cheapflights users on 4/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:20 pm
CVG
- STL
1 stop6h 59m
Frontier
Sun 5/311:28 am
STL
- CVG
1 stop5h 48m
Frontier
Deal found 4/14![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/47:46 pm
CVG
- STL
1 stop22h 50m
Frontier
Fri 5/84:19 pm
STL
- CVG
1 stop6h 36m
Frontier
Deal found 4/13![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Mon 6/812:46 pm
CVG
- STL
2 stops12h 11m
Frontier
Wed 6/105:13 pm
STL
- CVG
1 stop17h 01m
Frontier
Deal found 4/14![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sun 5/33:29 pm
CVG
- STL
2 stops16h 21m
Multiple Airlines
Sat 5/95:27 pm
STL
- CVG
1 stop16h 37m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sat 5/161:05 pm
CVG
- STL
1 stop7h 18m
Multiple Airlines
Tue 5/196:33 pm
STL
- CVG
2 stops37h 15m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$192
This Frontier deal was found by Cheapflights users on 4/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Mon 6/14:19 pm
STL
- CVG
1 stop6h 19m
Frontier
Deal found 4/13![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Wed 6/39:30 pm
CVG
- STL
2 stops21h 03m
Frontier
Mon 6/85:27 pm
STL
- CVG
1 stop16h 47m
Frontier
Deal found 4/15![Frontier logo]()
$203
This Expedia deal was found by Cheapflights users on 4/15. 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.
Tue 8/117:15 am
CVG
- STL
1 stop17h 59m
Frontier
Thu 8/134:10 pm
STL
- CVG
1 stop6h 36m
Frontier
Deal found 4/15![Frontier logo]()
$204
This Expedia deal was found by Cheapflights users on 4/15. 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.
Thu 5/712:12 pm
CVG
- STL
1 stop5h 42m
Frontier
Fri 5/88:08 pm
STL
- CVG
1 stop14h 52m
Frontier
Deal found 4/15![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/18:17 pm
CVG
- STL
1 stop24h 15m
Frontier
Wed 5/65:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 4/14![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sun 5/37:26 pm
CVG
- STL
1 stop12h 24m
Frontier
Sat 5/95:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 4/13![Frontier logo]()
$210
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 April 17, 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 April 17, 2026.
This Frontier deal was found by Cheapflights users on 4/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Mon 6/14:19 pm
STL
- CVG
1 stop6h 19m
Frontier
Deal found 4/16![Frontier logo]()
$225
This Southwest deal was found by Cheapflights users on 4/15. 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.
Tue 8/115:30 pm
CVG
- STL
1 stop5h 40m
Southwest
Wed 8/127:15 am
STL
- CVG
2 stops6h 40m
Southwest
Deal found 4/15![Southwest logo]()
$280
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:00 pm
CVG
- STL
1 stop4h 00m
Delta
Fri 5/297:05 am
STL
- CVG
1 stop4h 48m
Delta
Deal found 4/12![Delta logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 4/12. 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.
Fri 5/1512:46 pm
CVG
- STL
1 stop21h 09m
Frontier
Sun 5/176:55 pm
STL
- CVG
1 stop15h 46m
Frontier
Deal found 4/12![Frontier logo]()
$232
This Southwest deal was found by Cheapflights users on 4/15. 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.
Wed 6/37:05 am
CVG
- STL
2 stops9h 05m
Southwest
Mon 6/84:25 pm
STL
- CVG
2 stops6h 55m
Southwest
Deal found 4/15![Southwest logo]()
$303
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:34 am
CVG
- STL
1 stop3h 45m
Delta
Tue 8/45:19 pm
STL
- CVG
1 stop6h 20m
Delta
Deal found 4/13![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 4/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:45 am
CVG
- STL
2 stops11h 25m
Southwest
Tue 5/1911:35 am
STL
- CVG
2 stops7h 45m
Southwest
Deal found 4/13![Southwest logo]()
$309
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:19 pm
CVG
- STL
1 stop4h 37m
Delta
Fri 6/123:57 pm
STL
- CVG
1 stop4h 03m
Delta
Deal found 4/13![Delta logo]()
$329
This Southwest deal was found by Cheapflights users on 4/17. 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 5/127:05 am
CVG
- STL
2 stops9h 10m
Southwest
Thu 5/147:35 am
STL
- CVG
1 stop3h 15m
Southwest
Deal found 4/17![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 4/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/224:11 pm
CVG
- STL
1 stop6h 27m
Delta
Sun 5/245:20 pm
STL
- CVG
1 stop6h 14m
Delta
Deal found 4/12![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 4/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:45 am
CVG
- STL
2 stops11h 25m
Southwest
Sat 6/612:50 pm
STL
- CVG
2 stops6h 05m
Southwest
Deal found 4/13![Southwest logo]()
$327
Last-minute flights from Cincinnati to St. LouisDiscover last-minute flight deals from Cincinnati to St. Louis. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated April 17, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 4/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:20 pm
CVG
- STL
1 stop6h 59m
Frontier
Sun 5/311:28 am
STL
- CVG
1 stop5h 48m
Frontier
Deal found 4/14![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/18:17 pm
CVG
- STL
1 stop24h 15m
Frontier
Wed 5/65:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 4/14![Frontier logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sun 5/33:29 pm
CVG
- STL
2 stops16h 21m
Multiple Airlines
Sat 5/95:27 pm
STL
- CVG
1 stop16h 37m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sun 5/37:26 pm
CVG
- STL
1 stop12h 24m
Frontier
Sat 5/95:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 4/13![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/47:46 pm
CVG
- STL
1 stop22h 50m
Frontier
Fri 5/84:19 pm
STL
- CVG
1 stop6h 36m
Frontier
Deal found 4/13![Frontier logo]()
$183
This Expedia deal was found by Cheapflights users on 4/15. 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.
Thu 5/712:12 pm
CVG
- STL
1 stop5h 42m
Frontier
Fri 5/88:08 pm
STL
- CVG
1 stop14h 52m
Frontier
Deal found 4/15![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Thu 5/712:12 pm
CVG
- STL
1 stop5h 42m
Frontier
Sun 5/1012:36 pm
STL
- CVG
2 stops22h 19m
Frontier
Deal found 4/14![Frontier logo]()
$216
This Expedia deal was found by Cheapflights users on 4/13. 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 5/1112:50 pm
CVG
- STL
1 stop7h 33m
Frontier
Mon 5/184:19 pm
STL
- CVG
1 stop6h 36m
Frontier
Deal found 4/13![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Sat 5/161:05 pm
CVG
- STL
1 stop7h 18m
Multiple Airlines
Tue 5/196:33 pm
STL
- CVG
2 stops37h 15m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$192
This Frontier deal was found by Cheapflights users on 4/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Mon 6/14:19 pm
STL
- CVG
1 stop6h 19m
Frontier
Deal found 4/13![Frontier logo]()
$201
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 April 17, 2026.
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:46 pm
CVG
- STL
1 stop22h 50m
Frontier
Deal found 4/13![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Tue 6/2312:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Deal found 4/13![Frontier logo]()
$63
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1012:12 pm
CVG
- STL
1 stop21h 43m
Frontier
Deal found 4/13![Frontier logo]()
$66
This Trip.com deal was found by Cheapflights users on 4/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Deal found 4/12![Frontier logo]()
$67
This Priceline deal was found by Cheapflights users on 4/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:12 pm
CVG
- STL
1 stop5h 42m
Frontier
Deal found 4/13![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Fri 6/512:46 pm
CVG
- STL
1 stop21h 09m
Frontier
Deal found 4/13![Frontier logo]()
$71
This Expedia deal was found by Cheapflights users on 4/13. 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 4/275:20 pm
CVG
- STL
1 stop6h 59m
Frontier
Deal found 4/13![Frontier logo]()
$90
This Priceline deal was found by Cheapflights users on 4/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:12 pm
CVG
- STL
1 stop6h 18m
Frontier
Deal found 4/13![Frontier logo]()
$95
This Expedia deal was found by Cheapflights users on 4/13. 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.
Tue 4/2810:00 am
CVG
- STL
1 stop14h 19m
Frontier
Deal found 4/13![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 4/13. 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 5/187:11 pm
CVG
- STL
2 stops23h 22m
Frontier
Deal found 4/13![Frontier logo]()
$98
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 April 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $180 (Priceline) |
One-way from | $60 (Trip.com) |
Popular in | September |
Cheapest in | August |
Average price | $398 |
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 2,558,603 searches. Data last updated April 17, 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 - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 5/28
12:12 pm-5:33 pm
1 stop6h 21m
Lambert-St Louis
Mon 6/1
4:19 pm-11:38 pm
1 stop6h 19m
$225
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 5/15
12:46 pm-8:55 am
1 stop21h 09m
Lambert-St Louis
Sun 5/17
6:55 pm-11:41 am
1 stop15h 46m
$232
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/11
5:30 pm-10:10 pm
1 stop5h 40m
Lambert-St Louis
Wed 8/12
7:15 am-2:55 pm
2 stops6h 40m
$280
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Wed 6/3
7:05 am-3:10 pm
2 stops9h 05m
Lambert-St Louis
Mon 6/8
4:25 pm-12:20 am
2 stops6h 55m
$303
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Sat 5/16
8:45 am-7:10 pm
2 stops11h 25m
Lambert-St Louis
Tue 5/19
11:35 am-8:20 pm
2 stops7h 45m
$309
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Sat 5/23
3:00 pm-6:00 pm
1 stop4h 00m
Lambert-St Louis
Fri 5/29
7:05 am-12:53 pm
1 stop4h 48m
$317
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 5/12
7:05 am-3:15 pm
2 stops9h 10m
Lambert-St Louis
Thu 5/14
7:35 am-11:50 am
1 stop3h 15m
$322
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/4
5:34 am-8:19 am
1 stop3h 45m
Lambert-St Louis
Tue 8/4
5:19 pm-12:39 am
1 stop6h 20m
$323
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Sat 5/16
8:45 am-7:10 pm
2 stops11h 25m
Lambert-St Louis
Sat 6/6
12:50 pm-7:55 pm
2 stops6h 05m
$327
Quickest round-trip
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 6/8
8:19 pm-11:56 pm
1 stop4h 37m
Lambert-St Louis
Fri 6/12
3:57 pm-9:00 pm
1 stop4h 03m
$329
Showing 1-10 of 23 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | 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
What is the cheapest month to book a flight from Cincinnati to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Cincinnati to St. Louis (average of $269). Flying from Cincinnati to St. Louis in September is currently the most expensive (average of $572). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Cincinnati to St. Louis?
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 April 17, 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.
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Alternative routes for Cincinnati to St. Louis
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Cincinnati and St. Louis flights
Browse other Cincinnati and St. Louis flight options. Last updated on April 17, 2026.
Other flights from Cincinnati
Browse through other flights departing from Cincinnati. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
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 2,558,603 searches. Data last updated April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$322 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$416 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$254 | Average$422 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$259 | Average$410 | FlexibilityNo cancel fee | On-time69% |