$63+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Jun 21 — Jun 281
Round-trip
1 adult, Economy
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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 May 22, 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 May 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Tue 6/306:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/17![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Tue 6/236:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/19![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/312:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Fri 7/104:52 pm
STL
- CVG
1 stop17h 56m
Frontier
Deal found 5/19![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/912:24 pm
CVG
- STL
1 stop21h 23m
Frontier
Thu 6/116:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/18![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1812:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 6/216:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/17![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1112:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 6/146:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/20![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/3012:24 pm
CVG
- STL
1 stop6h 06m
Multiple Airlines
Wed 7/15:06 pm
STL
- CVG
2 stops18h 01m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/212:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 7/56:33 pm
STL
- CVG
1 stop16h 15m
Frontier
Deal found 5/19![Frontier logo]()
$179
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 May 22, 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 May 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 7/312:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Fri 7/104:52 pm
STL
- CVG
1 stop17h 56m
Frontier
Deal found 5/19![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/21. 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 7/212:24 pm
CVG
- STL
1 stop6h 06m
Multiple Airlines
Sun 7/56:34 pm
STL
- CVG
2 stops27h 57m
Multiple Airlines
Deal found 5/21![Multiple Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 5/18. 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 6/307:00 am
CVG
- STL
2 stops8h 50m
Southwest
Wed 7/13:15 pm
STL
- CVG
2 stops6h 50m
Southwest
Deal found 5/18![Southwest logo]()
$305
This United Airlines deal was found by Cheapflights users on 5/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:08 am
CVG
- STL
1 stop4h 03m
United Airlines
Sun 7/127:05 pm
STL
- CVG
1 stop3h 47m
United Airlines
Deal found 5/17![United Airlines logo]()
$347
This Frontier deal was found by Cheapflights users on 5/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/712:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Sun 6/144:17 pm
STL
- CVG
1 stop6h 29m
Frontier
Deal found 5/17![Frontier logo]()
$279
This Southwest deal was found by Cheapflights users on 5/17. 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 6/167:00 am
CVG
- STL
2 stops9h 45m
Southwest
Tue 6/308:25 am
STL
- CVG
2 stops8h 35m
Southwest
Deal found 5/17![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 5/17. 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 6/167:00 am
CVG
- STL
2 stops9h 45m
Southwest
Tue 6/235:40 am
STL
- CVG
2 stops6h 40m
Southwest
Deal found 5/17![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 5/20. 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 6/223:50 pm
CVG
- STL
2 stops7h 55m
Southwest
Wed 6/243:10 pm
STL
- CVG
1 stop5h 40m
Southwest
Deal found 5/20![Southwest logo]()
$326
This Southwest deal was found by Cheapflights users on 5/21. 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 6/293:50 pm
CVG
- STL
2 stops6h 00m
Southwest
Wed 7/15:40 am
STL
- CVG
2 stops6h 40m
Southwest
Deal found 5/21![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 5/19. 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 7/294:30 pm
CVG
- STL
2 stops7h 30m
Southwest
Fri 7/314:35 pm
STL
- CVG
2 stops6h 50m
Southwest
Deal found 5/19![Southwest logo]()
$331
This Southwest deal was found by Cheapflights users on 5/20. 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 6/177:00 am
CVG
- STL
2 stops8h 50m
Southwest
Wed 6/245:40 am
STL
- CVG
2 stops6h 40m
Southwest
Deal found 5/20![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 5/18. 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 6/83:50 pm
CVG
- STL
2 stops6h 00m
Southwest
Tue 6/93:10 pm
STL
- CVG
2 stops6h 55m
Southwest
Deal found 5/18![Southwest logo]()
$351
Last-minute flights from Cincinnati to St. LouisDiscover last-minute flight deals from Cincinnati to St. Louis. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated May 22, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 5/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/88:40 pm
CVG
- STL
1 stop21h 25m
Frontier
Tue 6/98:08 pm
STL
- CVG
1 stop22h 02m
Frontier
Deal found 5/18![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/912:24 pm
CVG
- STL
1 stop21h 23m
Frontier
Thu 6/116:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/18![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1112:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 6/146:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/20![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Tue 6/306:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/17![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Tue 6/236:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/19![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1812:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 6/216:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/17![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/191:30 pm
CVG
- STL
2 stops20h 22m
Multiple Airlines
Mon 6/225:06 pm
STL
- CVG
1 stop17h 08m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/2512:24 pm
CVG
- STL
1 stop21h 28m
Multiple Airlines
Tue 6/306:31 pm
STL
- CVG
2 stops18h 21m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 6/3012:24 pm
CVG
- STL
1 stop6h 06m
Multiple Airlines
Wed 7/15:06 pm
STL
- CVG
2 stops18h 01m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$175
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 May 22, 2026.
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/20. 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 6/1112:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Deal found 5/20![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/1912:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Deal found 5/19![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/712:54 pm
CVG
- STL
1 stop21h 03m
Frontier
Deal found 5/18![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 5/18. 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.
Tue 6/1612:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Deal found 5/18![Frontier logo]()
$95
This Delta deal was found by Cheapflights users on 5/21. 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 7/41:57 pm
CVG
- STL
1 stop5h 10m
Delta
Deal found 5/21![Delta logo]()
$113
This Orbitz deal was found by Cheapflights users on 5/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:52 pm
CVG
- STL
1 stop10h 07m
Frontier
Deal found 5/18![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/53:21 pm
CVG
- STL
1 stop9h 38m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$116
This Expedia deal was found by Cheapflights users on 5/21. 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.
Sat 7/189:28 am
CVG
- STL
1 stop15h 31m
Frontier
Deal found 5/21![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 7/101:12 pm
CVG
- STL
2 stops20h 45m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 6/191:30 pm
CVG
- STL
2 stops20h 22m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$141
This Booking.com deal was found by Cheapflights users on 5/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:00 am
CVG
- STL
1 stop17h 57m
Frontier
Deal found 5/20![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/512:54 pm
CVG
- STL
2 stops12h 05m
Frontier
Deal found 5/18![Frontier logo]()
$150
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 May 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $123 (Kiwi.com) |
One-way from | $63 (Kiwi.com) |
Popular in | September |
Cheapest in | August |
Average price | $380 |
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 May 22, 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
Fri 7/3
12:54 pm-8:52 am
1 stop20h 58m
Lambert-St Louis
Fri 7/10
4:52 pm-11:48 am
1 stop17h 56m
$125
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 7/2
12:24 pm-5:30 pm
1 stop6h 06m
Lambert-St Louis
Sun 7/5
6:34 pm-11:31 pm
2 stops27h 57m
$273
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 6/7
12:12 pm-5:33 pm
1 stop6h 21m
Lambert-St Louis
Sun 6/14
4:17 pm-11:46 pm
1 stop6h 29m
$279
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 6/30
7:00 am-2:50 pm
2 stops8h 50m
Lambert-St Louis
Wed 7/1
3:15 pm-11:05 pm
2 stops6h 50m
$305
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 6/16
7:00 am-3:45 pm
2 stops9h 45m
Lambert-St Louis
Tue 6/30
8:25 am-6:00 pm
2 stops8h 35m
$305
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 6/16
7:00 am-3:45 pm
2 stops9h 45m
Lambert-St Louis
Tue 6/23
5:40 am-1:20 pm
2 stops6h 40m
$305
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 6/22
3:50 pm-10:45 pm
2 stops7h 55m
Lambert-St Louis
Wed 6/24
3:10 pm-9:50 pm
1 stop5h 40m
$326
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 6/29
3:50 pm-8:50 pm
2 stops6h 00m
Lambert-St Louis
Wed 7/1
5:40 am-1:20 pm
2 stops6h 40m
$331
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Wed 7/29
4:30 pm-11:00 pm
2 stops7h 30m
Lambert-St Louis
Fri 7/31
4:35 pm-12:25 am
2 stops6h 50m
$331
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Wed 6/17
7:00 am-2:50 pm
2 stops8h 50m
Lambert-St Louis
Wed 6/24
5:40 am-1:20 pm
2 stops6h 40m
$340
Showing 1-10 of 24 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 May.
| 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 |
- 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 May 22, 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.
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
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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Complete your trip
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Cincinnati and St. Louis flights
Browse other Cincinnati and St. Louis flight options. Last updated on May 22, 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 May 22, 2026.
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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 May 22, 2026.
Top 5 airlines flying from Cincinnati to St. Louis
Discover the top 5 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 May 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$230 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$218 | Average$346 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$393 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$254 | Average$422 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$259 | Average$380 | FlexibilityNo cancel fee | On-time69% |