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Cheap flights from St. Louis to Cincinnati from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Cincinnati departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Cincinnati

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:42 pm - 4:29 pm
STL
-
CVG
21h 47m1 stop
Frontier Logo
5:39 pm - 11:33 pm
CVG
-
STL
6h 54m1 stop
$159Frontier
jue., ene. 22 - lun., ene. 26
Frontier Logo
3:49 pm - 9:25 pm
STL
-
CVG
28h 36m1 stop
Frontier Logo
12:17 pm - 12:27 am
CVG
-
STL
13h 10m1 stop
$190Frontier
mar., feb. 24 - vie., feb. 27
Frontier Logo
11:18 am - 11:26 pm
STL
-
CVG
11h 08m1 stop
Frontier Logo
4:23 pm - 11:33 pm
CVG
-
STL
8h 10m1 stop
$195Frontier
vie., ene. 23 - mar., ene. 27
Frontier Logo
10:01 pm - 11:57 pm
STL
-
CVG
24h 56m1 stop
Frontier Logo
10:30 am - 11:33 pm
CVG
-
STL
14h 03m1 stop
$208Frontier
jue., feb. 5 - lun., feb. 9
Multiple Airlines Logo
3:49 pm - 2:10 pm
STL
-
CVG
21h 21m1 stop
Multiple Airlines Logo
1:07 pm - 12:27 am
CVG
-
STL
12h 20m2 stops
$209Multiple Airlines
mar., feb. 24 - vie., feb. 27
Frontier Logo
5:42 pm - 10:20 pm
STL
-
CVG
27h 38m1 stop
Frontier Logo
5:39 pm - 11:33 pm
CVG
-
STL
6h 54m1 stop
$212Frontier
mar., ene. 20 - vie., ene. 23
Frontier Logo
10:01 pm - 8:53 pm
STL
-
CVG
21h 52m2 stops
Frontier Logo
5:39 pm - 11:33 pm
CVG
-
STL
6h 54m1 stop
$214Frontier
jue., feb. 5 - lun., feb. 9
Frontier Logo
11:21 am - 6:33 pm
STL
-
CVG
6h 12m1 stop
Frontier Logo
1:20 pm - 7:07 am
CVG
-
STL
18h 47m1 stop
$225Frontier
mar., mar. 24 - jue., mar. 26
Frontier Logo
1:58 pm - 11:20 pm
STL
-
CVG
8h 22m1 stop
Frontier Logo
5:45 am - 1:38 pm
CVG
-
STL
8h 53m1 stop
$235Frontier
sáb., mar. 7 - vie., mar. 13
Southwest Logo
8:15 am - 5:35 pm
STL
-
CVG
8h 20m2 stops
Southwest Logo
6:25 am - 2:40 pm
CVG
-
STL
9h 15m2 stops
$272Southwest
mar., feb. 24 - vie., feb. 27

Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Jan 22
STL5:42 pmLambert-St Louis
21h 47m
1 stop
CVG4:29 pmCincinnati Cinci./N. Kentucky
Jan 26
CVG5:39 pmCincinnati Cinci./N. Kentucky
6h 54m
1 stop
STL11:33 pmLambert-St Louis
$159
Frontier
Feb 24
STL3:49 pmLambert-St Louis
28h 36m
1 stop
CVG9:25 pmCincinnati Cinci./N. Kentucky
Feb 27
CVG12:17 pmCincinnati Cinci./N. Kentucky
13h 10m
1 stop
STL12:27 amLambert-St Louis
$190
Frontier
Jan 23
STL11:18 amLambert-St Louis
11h 08m
1 stop
CVG11:26 pmCincinnati Cinci./N. Kentucky
Jan 27
CVG4:23 pmCincinnati Cinci./N. Kentucky
8h 10m
1 stop
STL11:33 pmLambert-St Louis
$195

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Feb 2
STL2:15 pmLambert-St Louis
7h 10m
2 stops
CVG10:25 pmCincinnati Cinci./N. Kentucky
Feb 4
CVG1:35 pmCincinnati Cinci./N. Kentucky
6h 10m
1 stop
STL6:45 pmLambert-St Louis
$220
Southwest
Feb 2
STL8:20 amLambert-St Louis
8h 15m
2 stops
CVG5:35 pmCincinnati Cinci./N. Kentucky
Feb 4
CVG1:35 pmCincinnati Cinci./N. Kentucky
8h 25m
2 stops
STL9:00 pmLambert-St Louis
$226
Southwest
Feb 24
STL8:15 amLambert-St Louis
8h 20m
2 stops
CVG5:35 pmCincinnati Cinci./N. Kentucky
Feb 27
CVG6:25 amCincinnati Cinci./N. Kentucky
9h 15m
2 stops
STL2:40 pmLambert-St Louis
$272

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Cincinnati 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, momondo users made 832,500 searches. Data last updated enero 8, 2026.
Use the filters below to find and compare flights from St. Louis to Cincinnati that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

jue. 1/22

5:42 pm-4:29 pm

1 stop21h 47m

Cincinnati Cinci./N. Kentucky

lun. 1/26

5:39 pm-11:33 pm

1 stop6h 54m

$159

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 2/24

3:49 pm-9:25 pm

1 stop28h 36m

Cincinnati Cinci./N. Kentucky

vie. 2/27

12:17 pm-12:27 am

1 stop13h 10m

$190

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

vie. 1/23

11:18 am-11:26 pm

1 stop11h 08m

Cincinnati Cinci./N. Kentucky

mar. 1/27

4:23 pm-11:33 pm

1 stop8h 10m

$195

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

jue. 2/5

10:01 pm-11:57 pm

1 stop24h 56m

Cincinnati Cinci./N. Kentucky

lun. 2/9

10:30 am-11:33 pm

1 stop14h 03m

$208

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 2/24

3:49 pm-2:10 pm

1 stop21h 21m

Cincinnati Cinci./N. Kentucky

vie. 2/27

1:07 pm-12:27 am

2 stops12h 20m

$209

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 1/20

5:42 pm-10:20 pm

1 stop27h 38m

Cincinnati Cinci./N. Kentucky

vie. 1/23

5:39 pm-11:33 pm

1 stop6h 54m

$212

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

jue. 2/5

10:01 pm-8:53 pm

2 stops21h 52m

Cincinnati Cinci./N. Kentucky

lun. 2/9

5:39 pm-11:33 pm

1 stop6h 54m

$214

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 3/24

11:21 am-6:33 pm

1 stop6h 12m

Cincinnati Cinci./N. Kentucky

jue. 3/26

1:20 pm-7:07 am

1 stop18h 47m

$225

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 3/7

1:58 pm-11:20 pm

1 stop8h 22m

Cincinnati Cinci./N. Kentucky

vie. 3/13

5:45 am-1:38 pm

1 stop8h 53m

$235

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 2/24

8:15 am-5:35 pm

2 stops8h 20m

Cincinnati Cinci./N. Kentucky

vie. 2/27

6:25 am-2:40 pm

2 stops9h 15m

$272

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cincinnati from

How to get the cheapest flight ticket from St. Louis to Cincinnati

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How have St. Louis to Cincinnati flight prices changed over time?

As of January 2026, prices for St. Louis to Cincinnati flights are approximately 27% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Cincinnati

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Cincinnati according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Cincinnati (STL to CVG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Cincinnati

Fastest flight time

4h 14m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 4h 14m
There are no direct flights from St. Louis to Cincinnati. There are no popular flight routes from St. Louis to Cincinnati.
Search flight deals

  • How far is Lambert-St Louis to Cincinnati Cinci./N. Kentucky by plane?

    There are 307.3 mi between Lambert-St Louis and Cincinnati Cinci./N. Kentucky. Flights usually cover this in 4h 14m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Cincinnati Cinci./N. Kentucky Airport?

    Prices for flights from Lambert-St Louis Airport to Cincinnati Cinci./N. Kentucky Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Cincinnati Cinci./N. Kentucky Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Cincinnati Cinci./N. Kentucky Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Cincinnati Cinci./N. Kentucky Airport.

  • What documentation or ID do you need to fly to Cincinnati Cinci./N. Kentucky Airport?

    The travel and health documents required for your trip to Cincinnati Cinci./N. Kentucky Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cincinnati Cinci./N. Kentucky Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Cincinnati?

Best airlines flying from St. Louis to Cincinnati

Compare and see reviews for airlines that fly from St. Louis to Cincinnati with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,094 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,025 reviews
Search Delta flights

Traveling to a place near Cincinnati?

Book flights to Cincinnati if you plan to visit one of these locations
Florence
Mason
Newport
Sharonville
Covington
Middletown
Williamstown
Lawrenceburg
Blue Ash
West Chester
Fairfield
Oxford
Dry Ridge
Monroe
Hebron
Edgewood
Bethel
Ghent
Trenton
Corinth

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Cincinnati?

It is quick and easy to find St. Louis to Cincinnati flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Cincinnati that suits you.

Can I find flights from St. Louis to Cincinnati with flexible booking policies on momondo?

Flights from St. Louis to Cincinnati with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to Cincinnati?

Once all potential St. Louis to Cincinnati flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from St. Louis to Cincinnati right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Cincinnati from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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