$98+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Jul 6 — Jul 131
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 June 6, 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 June 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/4. 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
Mon 7/64:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/4![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/104:57 pm
STL
- CVG
1 stop17h 51m
Frontier
Deal found 6/5![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/5. 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
Sun 7/266:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/5![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/3. 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
Tue 7/76:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/3![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 6/4. 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
Thu 6/256:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 6/4![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/1312:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 8/154:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/2![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/56:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/5![Frontier logo]()
$211
This Frontier deal was found by Cheapflights users on 6/6. 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 7/1412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Wed 7/154:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/6![Frontier logo]()
$230
This Booking.com deal was found by Cheapflights users on 6/2. 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 7/17:15 am
CVG
- STL
1 stop17h 34m
Frontier
Tue 7/74:09 pm
STL
- CVG
1 stop19h 49m
Frontier
Deal found 6/2![Frontier logo]()
$242
This Expedia deal was found by Cheapflights users on 6/6. 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 7/49:28 am
CVG
- STL
1 stop15h 21m
Frontier
Tue 7/74:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/6![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 6/6. 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 8/412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Fri 8/74:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/6![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/1012:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Mon 7/134:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/4![Frontier logo]()
$259
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 June 6, 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 June 6, 2026.
This Frontier deal was found by Cheapflights users on 6/6. 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 7/1412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Wed 7/154:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/6![Frontier logo]()
$230
This Southwest deal was found by Cheapflights users on 6/2. 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 7/17:00 am
CVG
- STL
2 stops9h 45m
Southwest
Tue 7/71:45 pm
STL
- CVG
2 stops8h 25m
Southwest
Deal found 6/2![Southwest logo]()
$305
This Delta deal was found by Cheapflights users on 6/4. 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 8/46:05 am
CVG
- STL
1 stop4h 32m
Delta
Tue 8/42:10 pm
STL
- CVG
1 stop4h 44m
Delta
Deal found 6/4![Delta logo]()
$311
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Tue 8/48:58 am
CVG
- STL
1 stop5h 55m
American Airlines
Tue 8/45:58 pm
STL
- CVG
1 stop5h 32m
American Airlines
Deal found 6/5![American Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 7/1012:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Mon 7/134:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/2![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 8/1312:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 8/154:57 pm
STL
- CVG
2 stops19h 54m
Frontier
Deal found 6/2![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 7/108:36 pm
CVG
- STL
2 stops13h 21m
Frontier
Sun 7/126:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/6![Frontier logo]()
$276
This Booking.com deal was found by Cheapflights users on 6/3. 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.
Fri 7/248:36 pm
CVG
- STL
1 stop23h 47m
Frontier
Sun 7/267:10 pm
STL
- CVG
1 stop24h 15m
Frontier
Deal found 6/3![Frontier logo]()
$302
Last-minute flights from Cincinnati to St. LouisDiscover last-minute flight deals from Cincinnati to St. Louis. Data last updated June 6, 2026 and is based on user searches.
Discover last-minute flight deals from Cincinnati to St. Louis. Data last updated June 6, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/4. 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
Thu 6/256:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 6/4![Frontier logo]()
$198
This Booking.com deal was found by Cheapflights users on 6/2. 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 7/17:15 am
CVG
- STL
1 stop17h 34m
Frontier
Tue 7/74:09 pm
STL
- CVG
1 stop19h 49m
Frontier
Deal found 6/2![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/56:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/5![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 6/4. 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
Mon 7/64:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/4![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 7/104:57 pm
STL
- CVG
1 stop17h 51m
Frontier
Deal found 6/5![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/3. 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
Tue 7/76:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/3![Frontier logo]()
$191
This Expedia deal was found by Cheapflights users on 6/6. 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 7/49:28 am
CVG
- STL
1 stop15h 21m
Frontier
Tue 7/74:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/6![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/1012:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Mon 7/134:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/4![Frontier logo]()
$259
This Frontier deal was found by Cheapflights users on 6/6. 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 7/1412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Wed 7/154:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/6![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 6/5. 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
Sun 7/266:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/5![Frontier logo]()
$190
This Booking.com deal was found by Cheapflights users on 6/4. 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 7/278:36 pm
CVG
- STL
1 stop23h 47m
Frontier
Wed 7/294:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/4![Frontier logo]()
$261
This Booking.com deal was found by Cheapflights users on 6/5. 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 7/297:15 am
CVG
- STL
1 stop17h 44m
Frontier
Fri 7/314:09 pm
STL
- CVG
1 stop15h 09m
Frontier
Deal found 6/5![Frontier logo]()
$262
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 June 6, 2026.
Search for one-way flight options from Cincinnati to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/5. 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
Deal found 6/5![Frontier logo]()
$98
This Flightnetwork deal was found by Cheapflights users on 6/2. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:30 pm
CVG
- STL
1 stop21h 45m
Frontier
Deal found 6/2![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 6/4. 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 9/202:19 pm
CVG
- STL
1 stop6h 20m
Frontier
Deal found 6/4![Frontier logo]()
$155
This Southwest deal was found by Cheapflights users on 6/2. 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 7/173:50 pm
CVG
- STL
2 stops8h 00m
Southwest
Deal found 6/2![Southwest logo]()
$179
This United Airlines deal was found by Cheapflights users on 6/4. 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 9/2211:17 am
CVG
- STL
1 stop5h 21m
United Airlines
Deal found 6/4![United Airlines logo]()
$183
This American Airlines deal was found by Cheapflights users on 6/4. 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 9/2611:58 am
CVG
- STL
1 stop5h 50m
American Airlines
Deal found 6/4![American Airlines logo]()
$195
This Frontier deal was found by Cheapflights users on 6/4. 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 9/279:26 pm
CVG
- STL
1 stop15h 25m
Frontier
Deal found 6/4![Frontier logo]()
$206
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Tue 9/228:08 am
CVG
- STL
2 stops10h 56m
American Airlines
Deal found 6/4![American Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:00 am
CVG
- STL
2 stops10h 44m
American Airlines
Deal found 6/4![American Airlines logo]()
$260
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:50 am
CVG
- STL
2 stops7h 10m
American Airlines
Deal found 6/4![American Airlines logo]()
$320
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 June 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $178 (Kiwi.com) |
One-way from | $98 (Kiwi.com) |
Popular in | September |
Cheapest in | August |
Average price | $346 |
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 June 6, 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
Tue 7/14
12:18 pm-5:37 pm
1 stop6h 19m
Lambert-St Louis
Wed 7/15
4:09 pm-11:46 pm
1 stop6h 37m
$230
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 7/10
12:53 pm-8:57 am
1 stop21h 04m
Lambert-St Louis
Mon 7/13
4:57 pm-11:13 am
1 stop17h 16m
$259
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 8/13
12:18 pm-5:37 pm
1 stop6h 19m
Lambert-St Louis
Sat 8/15
4:57 pm-1:51 pm
2 stops19h 54m
$261
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 7/10
8:36 pm-8:57 am
2 stops13h 21m
Lambert-St Louis
Sun 7/12
6:34 pm-11:48 am
1 stop16h 14m
$276
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 7/24
8:36 pm-7:23 pm
1 stop23h 47m
Lambert-St Louis
Sun 7/26
7:10 pm-8:25 pm
1 stop24h 15m
$302
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Wed 7/1
7:00 am-3:45 pm
2 stops9h 45m
Lambert-St Louis
Tue 7/7
1:45 pm-11:10 pm
2 stops8h 25m
$305
Quickest round-trip
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/4
6:05 am-9:37 am
1 stop4h 32m
Lambert-St Louis
Tue 8/4
2:10 pm-7:54 pm
1 stop4h 44m
$311
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/4
8:58 am-1:53 pm
1 stop5h 55m
Lambert-St Louis
Tue 8/4
5:58 pm-12:30 am
1 stop5h 32m
$316
Cheapest one-way
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Thu 7/2
12:24 pm-5:30 pm
1 stop6h 06m
$98
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 7/17
9:30 pm-6:15 pm
1 stop21h 45m
$146
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Cincinnati to St. Louis
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cincinnati to St. Louis in June.
| 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 June 6, 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.
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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 locationsO'Fallon
Edwardsville
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Cincinnati and St. Louis flights
Browse other Cincinnati and St. Louis flight options. Last updated on June 6, 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 June 6, 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 June 6, 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 June 6, 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% |