$81+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Jul 31 — Aug 71
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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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 July 1, 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 July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/912:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Thu 8/136:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/26![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/2312:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Thu 7/306:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/29![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/1712:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Sun 7/196:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/28![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/912:18 pm
CVG
- STL
1 stop21h 39m
Multiple Airlines
Wed 8/124:57 pm
STL
- CVG
2 stops18h 45m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/297:15 am
CVG
- STL
1 stop17h 44m
Frontier
Fri 7/314:57 pm
STL
- CVG
1 stop17h 51m
Frontier
Deal found 6/27![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/2612:18 pm
CVG
- STL
1 stop6h 19m
Multiple Airlines
Sun 8/26:34 pm
STL
- CVG
2 stops27h 57m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/2812:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Tue 8/46:34 pm
STL
- CVG
2 stops17h 24m
Frontier
Deal found 6/28![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/2712:53 pm
CVG
- STL
2 stops36h 06m
Frontier
Mon 8/34:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/29![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/1412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 7/184:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/29![Frontier logo]()
$234
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 July 1, 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 July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/912:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Thu 8/136:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/26![Frontier logo]()
$166
This Delta deal was found by Cheapflights users on 6/29. 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 8/46:10 am
CVG
- STL
1 stop4h 27m
Delta
Tue 8/42:10 pm
STL
- CVG
1 stop4h 44m
Delta
Deal found 6/29![Delta logo]()
$265
This Southwest deal was found by Cheapflights users on 6/28. 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 7/284:30 pm
CVG
- STL
2 stops7h 35m
Southwest
Tue 8/412:50 pm
STL
- CVG
2 stops7h 55m
Southwest
Deal found 6/28![Southwest logo]()
$279
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Fri 8/78:30 am
CVG
- STL
1 stop5h 24m
American Airlines
Mon 8/104:54 pm
STL
- CVG
1 stop6h 33m
American Airlines
Deal found 6/27![American Airlines logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/2712:53 pm
CVG
- STL
2 stops36h 06m
Frontier
Mon 8/34:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/29![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/2312:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Thu 7/306:34 pm
STL
- CVG
2 stops24h 51m
Frontier
Deal found 6/29![Frontier logo]()
$240
This Southwest deal was found by Cheapflights users on 6/29. 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 8/137:05 am
CVG
- STL
2 stops9h 15m
Southwest
Sat 8/155:45 am
STL
- CVG
2 stops7h 05m
Southwest
Deal found 6/29![Southwest logo]()
$287
This Expedia deal was found by Cheapflights users on 6/27. 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 7/128:36 pm
CVG
- STL
1 stop23h 47m
Frontier
Thu 7/164:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/27![Frontier logo]()
$300
This Trip.com deal was found by Cheapflights users on 6/28. 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 7/138:36 pm
CVG
- STL
1 stop23h 47m
Frontier
Fri 7/174:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/28![Frontier logo]()
$319
Last-minute flights from Cincinnati to St. LouisDiscover last-minute flight deals from Cincinnati to St. Louis. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated July 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/1412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 7/184:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/29![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/1712:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Sun 7/196:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/28![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/2312:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Thu 7/306:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/29![Frontier logo]()
$167
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Sat 7/254:36 pm
CVG
- STL
1 stop8h 39m
American Airlines
Sat 8/17:02 am
STL
- CVG
1 stop8h 04m
American Airlines
Deal found 6/28![American Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/2612:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Sun 8/26:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/28![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/2612:18 pm
CVG
- STL
1 stop6h 19m
Multiple Airlines
Sun 8/26:34 pm
STL
- CVG
2 stops27h 57m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 7/2712:53 pm
CVG
- STL
2 stops36h 06m
Frontier
Mon 8/34:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/29![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 7/2812:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Tue 8/46:34 pm
STL
- CVG
2 stops17h 24m
Frontier
Deal found 6/28![Frontier logo]()
$222
This Southwest deal was found by Cheapflights users on 6/28. 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 7/284:30 pm
CVG
- STL
2 stops7h 35m
Southwest
Tue 8/412:50 pm
STL
- CVG
2 stops7h 55m
Southwest
Deal found 6/28![Southwest logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 7/297:15 am
CVG
- STL
1 stop17h 44m
Frontier
Fri 7/314:57 pm
STL
- CVG
1 stop17h 51m
Frontier
Deal found 6/27![Frontier logo]()
$216
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 July 1, 2026.
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This Trip.com deal was found by Cheapflights users on 6/30. 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.
Tue 7/2112:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Deal found 6/30![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 6/27. 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 8/1612:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Deal found 6/27![Frontier logo]()
$86
This Frontier deal was found by Cheapflights users on 7/1. 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 8/612:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Deal found 7/1![Frontier logo]()
$120
This Frontier deal was found by Cheapflights users on 6/30. 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.
Fri 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 6/30![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 9/19:20 pm
CVG
- STL
1 stop21h 30m
Frontier
Deal found 6/30![Frontier logo]()
$130
This American Airlines deal was found by Cheapflights users on 6/26. 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.
Wed 8/269:54 am
CVG
- STL
1 stop4h 00m
American Airlines
Deal found 6/26![American Airlines logo]()
$133
This Southwest deal was found by Cheapflights users on 6/26. 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 8/263:30 pm
CVG
- STL
2 stops7h 40m
Southwest
Deal found 6/26![Southwest logo]()
$138
This Southwest deal was found by Cheapflights users on 6/30. 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 7/217:00 am
CVG
- STL
2 stops8h 50m
Southwest
Deal found 6/30![Southwest logo]()
$142
This Priceline deal was found by Cheapflights users on 6/28. 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.
Sun 7/1212:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Deal found 6/28![Frontier logo]()
$150
This Southwest deal was found by Cheapflights users on 6/27. 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 9/172:10 pm
CVG
- STL
2 stops9h 10m
Southwest
Deal found 6/27![Southwest logo]()
$175
This Southwest deal was found by Cheapflights users on 6/27. 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 8/161:30 pm
CVG
- STL
2 stops7h 30m
Southwest
Deal found 6/27![Southwest logo]()
$179
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 July 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $140 (Kiwi.com) |
One-way from | $81 (Trip.com) |
Popular in | September |
Cheapest in | August |
Average price | $433 |
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 July 1, 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
Sun 8/9
12:18 pm-8:57 am
1 stop21h 39m
Lambert-St Louis
Thu 8/13
6:34 pm-11:48 am
1 stop16h 14m
$166
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 7/27
12:53 pm-11:59 pm
2 stops36h 06m
Lambert-St Louis
Mon 8/3
4:57 pm-11:13 am
1 stop17h 16m
$229
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 7/23
12:18 pm-5:37 pm
1 stop6h 19m
Lambert-St Louis
Thu 7/30
6:34 pm-8:25 pm
2 stops24h 51m
$240
Quickest round-trip
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/4
6:10 am-9:37 am
1 stop4h 27m
Lambert-St Louis
Tue 8/4
2:10 pm-7:54 pm
1 stop4h 44m
$265
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 7/28
4:30 pm-11:05 pm
2 stops7h 35m
Lambert-St Louis
Tue 8/4
12:50 pm-9:45 pm
2 stops7h 55m
$279
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 8/13
7:05 am-3:20 pm
2 stops9h 15m
Lambert-St Louis
Sat 8/15
5:45 am-1:50 pm
2 stops7h 05m
$287
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 7/12
8:36 pm-7:23 pm
1 stop23h 47m
Lambert-St Louis
Thu 7/16
4:09 pm-11:46 pm
1 stop6h 37m
$300
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 8/7
8:30 am-12:54 pm
1 stop5h 24m
Lambert-St Louis
Mon 8/10
4:54 pm-12:27 am
1 stop6h 33m
$306
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 7/13
8:36 pm-7:23 pm
1 stop23h 47m
Lambert-St Louis
Fri 7/17
4:09 pm-11:46 pm
1 stop6h 37m
$319
Cheapest one-way
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 8/6
12:18 pm-5:37 pm
1 stop6h 19m
$120
Showing 1-10 of 18 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 July.
| 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 $275). Flying from Cincinnati to St. Louis in September is currently the most expensive (average of $624). 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 July 1, 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
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Browse thousands of different options on Cheapflights for your next trip
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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 July 1, 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 July 1, 2026.
Popular flight searches
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 July 1, 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 July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$369 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$376 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$254 | Average$422 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$259 | Average$380 | FlexibilityNo cancel fee | On-time69% |