$66+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Nov 24 — Dec 11
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Cincinnati to St. Louis
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Best
Last-minute
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 October 25, 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 October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/14:44 pm -
1 stop19h 26m
Sat 12/57:54 pm -
2 stops23h 30m
Deal found 10/24![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/14:44 pm -
1 stop19h 26m
Sun 12/66:20 pm -
2 stops36h 58m
Deal found 10/24![Frontier logo]()
$202
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop17h 59m
Wed 12/26:13 pm -
1 stop16h 28m
Deal found 10/21![Frontier logo]()
$203
This Trip.com deal was found by Cheapflights users on 10/24. 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 12/88:34 pm -
1 stop28h 38m
Tue 12/156:20 pm -
1 stop16h 26m
Deal found 10/24![Frontier logo]()
$215
This CheapOair deal was found by Cheapflights users on 10/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:35 pm -
1 stop17h 50m
Wed 11/256:05 pm -
1 stop17h 54m
Deal found 10/20![Frontier logo]()
$238
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:00 am -
1 stop4h 23m
Tue 11/246:00 am -
1 stop5h 40m
Deal found 10/20![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 10/20. 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.
Tue 11/176:55 am -
2 stops9h 40m
Tue 11/245:30 am -
1 stop3h 25m
Deal found 10/20![Southwest logo]()
$250
This Southwest deal was found by Cheapflights users on 10/20. 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.
Sun 12/208:20 pm -
1 stop3h 25m
Tue 12/229:00 am -
1 stop6h 45m
Deal found 10/20![Southwest logo]()
$254
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 October 25, 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 October 25, 2026.
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop17h 59m
Wed 12/26:13 pm -
1 stop16h 28m
Deal found 10/21![Frontier logo]()
$203
This Delta deal was found by Cheapflights users on 10/23. 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.
Thu 11/1211:25 am -
1 stop6h 49m
Sat 11/1410:20 am -
1 stop3h 57m
Deal found 10/23![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 10/20. 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 11/166:55 am -
2 stops7h 50m
Tue 11/175:30 am -
2 stops7h 20m
Deal found 10/20![Southwest logo]()
$268
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/129:15 pm -
1 stop3h 47m
Sun 12/138:24 pm -
1 stop3h 30m
Deal found 10/23![American Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/218:53 am -
1 stop4h 19m
Sat 11/288:30 am -
1 stop5h 54m
Deal found 10/24![United Airlines logo]()
$336
This Southwest deal was found by Cheapflights users on 10/24. 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 12/18:40 am -
1 stop3h 20m
Sat 12/58:40 am -
1 stop5h 20m
Deal found 10/24![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 10/21. 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.
Wed 11/256:39 pm -
1 stop6h 17m
Sun 11/296:40 am -
1 stop5h 56m
Deal found 10/21![Delta logo]()
$371
This Frontier deal was found by Cheapflights users on 10/22. 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 11/51:33 pm -
1 stop10h 43m
Mon 11/912:14 pm -
1 stop5h 19m
Deal found 10/22![Frontier logo]()
$384
This Southwest deal was found by Cheapflights users on 10/22. 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 11/66:40 pm -
1 stop3h 40m
Tue 11/104:30 pm -
1 stop3h 55m
Deal found 10/22![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 10/20. 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.
Sun 1/38:20 pm -
1 stop3h 25m
Sun 1/104:05 pm -
1 stop3h 30m
Deal found 10/20![Southwest logo]()
$380
This Southwest deal was found by Cheapflights users on 10/24. 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 11/2110:30 am -
2 stops9h 35m
Sat 11/285:30 am -
1 stop3h 25m
Deal found 10/24![Southwest logo]()
$462
Last-minute flights from Cincinnati to St. LouisDiscover last-minute flight deals from Cincinnati to St. Louis. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated October 25, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 10/22. 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 11/57:59 pm -
1 stop28h 17m
Mon 11/912:14 pm -
1 stop5h 19m
Deal found 10/22![Frontier logo]()
$308
This Expedia deal was found by Cheapflights users on 10/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:32 pm -
1 stop27h 42m
Sun 11/84:26 pm -
1 stop25h 28m
Deal found 10/20![Frontier logo]()
$320
This Southwest deal was found by Cheapflights users on 10/23. 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 11/126:40 pm -
2 stops6h 55m
Sat 11/1410:45 am -
2 stops6h 15m
Deal found 10/23![Southwest logo]()
$268
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:00 am -
1 stop4h 23m
Tue 11/246:00 am -
1 stop5h 40m
Deal found 10/20![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 10/20. 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.
Tue 11/176:55 am -
2 stops9h 40m
Tue 11/245:30 am -
1 stop3h 25m
Deal found 10/20![Southwest logo]()
$250
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:50 am -
1 stop8h 50m
Mon 11/236:35 pm -
2 stops22h 55m
Deal found 10/20![Frontier logo]()
$267
This United Airlines deal was found by Cheapflights users on 10/24. 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 11/218:53 am -
1 stop4h 19m
Sat 11/288:30 am -
1 stop5h 54m
Deal found 10/24![United Airlines logo]()
$336
This CheapOair deal was found by Cheapflights users on 10/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:35 pm -
1 stop17h 50m
Wed 11/256:05 pm -
1 stop17h 54m
Deal found 10/20![Frontier logo]()
$238
This CheapOair deal was found by Cheapflights users on 10/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
1 stop17h 59m
Wed 12/26:13 pm -
1 stop16h 28m
Deal found 10/21![Frontier logo]()
$203
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 October 25, 2026.
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This CheapOair deal was found by Cheapflights users on 10/23. 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 11/1812:36 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$66
This Delta deal was found by Cheapflights users on 10/23. 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 11/173:54 pm -
1 stop5h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Delta logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Tue 11/248:12 pm -
2 stops22h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$140
This CheapOair deal was found by Cheapflights users on 10/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:00 am -
1 stop16h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Tue 11/246:10 am -
3 stops36h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$150
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/295:20 am -
1 stop4h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/299:00 am -
2 stops39h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/1711:10 am -
1 stop5h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 10/20. 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.
Sun 11/296:25 am -
1 stop3h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$313
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $172 (Kiwi.com) |
One-way from | $66 (CheapOair) |
Popular in | October |
Cheapest in | January |
Average price | $616 |
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 October 25, 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
Wed 11/18
12:36 pm-5:42 pm
1 stop6h 06m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$66
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 11/24
6:39 pm-11:56 pm
1 stop6h 17m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$123
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 11/24
8:12 pm-5:40 pm
2 stops22h 28m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$140
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 11/24
6:10 am-5:40 pm
3 stops36h 30m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$150
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 11/29
5:20 am-8:55 am
1 stop4h 35m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 11/26
7:00 am-11:59 pm
1 stop17h 59m
Lambert-St Louis
Wed 12/2
6:13 pm-11:41 am
1 stop16h 28m
$203
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 11/12
11:25 am-5:14 pm
1 stop6h 49m
Lambert-St Louis
Sat 11/14
10:20 am-3:17 pm
1 stop3h 57m
$245
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sat 10/31
12:29 pm-1:33 pm
2 stops26h 04m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$268
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 11/16
6:55 am-1:45 pm
2 stops7h 50m
Lambert-St Louis
Tue 11/17
5:30 am-1:50 pm
2 stops7h 20m
$268
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Sun 11/29
9:00 am-11:59 pm
2 stops39h 59m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$274
Showing 1-10 of 20 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 October.
| 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 is the cheapest month to book a flight from Cincinnati to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Cincinnati to St. Louis (average of $297). Flying from Cincinnati to St. Louis in October is currently the most expensive (average of $616). 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?
Airfare is below average for this route at the moment.
Cincinnati to St. Louis flights typically cost between $426 and $544 in December.The cheapest round-trip price found within the last 5 days was $172 on Frontier (Dec 1-Dec 5).
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 October 25, 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.
Boarding
8.1
Comfort
8.0
Overall
7.9
Food
7.0
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Overall
7.9
Food
7.0
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Overall
7.9
Food
7.0
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Overall
7.9
Food
7.0
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Boarding
8.1
Comfort
8.0
Overall
7.9
Food
7.0
Entertainment
7.4
Crew
8.6
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
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
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
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Cincinnati and St. Louis flights
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Top 4 airlines flying from Cincinnati to St. Louis
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$249 | Average$367 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$273 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$274 | Average$365 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$281 | Average$393 | FlexibilityNo cancel fee | On-timeN/A |