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Cheap flights from St. Louis to Cincinnati from $80

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 3/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
4:51 pm - 12:41 am
STL
-
CVG
6h 50m
1 stop
Frontier Logo
5:45 am - 7:17 am
CVG
-
STL
26h 32m
1 stop
$170Frontier
Tue, Mar 10 - Wed, Mar 11
Frontier Logo
8:12 pm - 11:46 am
STL
-
CVG
14h 34m
1 stop
Frontier Logo
7:43 pm - 10:37 am
CVG
-
STL
15h 54m
1 stop
$218Frontier
Fri, Mar 6 - Tue, Mar 10
Frontier Logo
8:12 pm - 6:33 pm
STL
-
CVG
21h 21m
2 stops
Frontier Logo
7:43 pm - 10:37 am
CVG
-
STL
15h 54m
1 stop
$222Frontier
Fri, Mar 6 - Tue, Mar 10
Frontier Logo
8:16 pm - 2:22 pm
STL
-
CVG
17h 06m
1 stop
Frontier Logo
7:20 am - 9:48 am
CVG
-
STL
27h 28m
1 stop
$231Frontier
Wed, Apr 1 - Sun, Apr 5
Frontier Logo
8:12 pm - 5:45 pm
STL
-
CVG
20h 33m
2 stops
Frontier Logo
11:58 am - 9:49 am
CVG
-
STL
22h 51m
1 stop
$248Frontier
Sat, Mar 7 - Fri, Mar 13
Frontier Logo
3:49 pm - 12:59 am
STL
-
CVG
8h 10m
1 stop
Frontier Logo
1:20 pm - 11:19 pm
CVG
-
STL
10h 59m
1 stop
$250Frontier
Thu, Mar 5 - Mon, Mar 9
American Airlines Logo
2:29 pm - 11:25 pm
STL
-
CVG
7h 56m
1 stop
American Airlines Logo
6:36 am - 11:35 am
CVG
-
STL
5h 59m
1 stop
$260American Airlines
Wed, Apr 1 - Sun, Apr 5
Frontier Logo
8:53 pm - 12:41 am
STL
-
CVG
26h 48m
1 stop
Frontier Logo
7:20 am - 9:49 am
CVG
-
STL
27h 29m
1 stop
$270Frontier
Sat, Mar 21 - Sun, Mar 29
American Airlines Logo
6:57 pm - 11:59 pm
STL
-
CVG
4h 02m
1 stop
American Airlines Logo
5:00 am - 8:51 am
CVG
-
STL
4h 51m
1 stop
$277American Airlines
Fri, Mar 20 - Fri, Mar 27
Southwest Logo
4:45 pm - 12:20 am
STL
-
CVG
6h 35m
1 stop
Southwest Logo
8:15 pm - 11:30 pm
CVG
-
STL
4h 15m
1 stop
$313Southwest
Fri, Apr 3 - Mon, Apr 6

Delta flights from St. Louis to Cincinnati

Our best Delta deals on St. Louis to Cincinnati flight tickets
Delta
Jun 18
STL6:45 amLambert-St Louis
5h 42m
1 stop
CVG1:27 pmCincinnati Cinci./N. Kentucky
Jun 22
CVG7:59 pmCincinnati Cinci./N. Kentucky
4h 39m
1 stop
STL11:38 pmLambert-St Louis
$340
Delta
Jul 23
STL5:30 pmLambert-St Louis
4h 21m
1 stop
CVG10:51 pmCincinnati Cinci./N. Kentucky
Jul 26
CVG7:15 amCincinnati Cinci./N. Kentucky
6h 39m
1 stop
STL12:54 pmLambert-St Louis
$355
Delta
Mar 7
STL5:50 pmLambert-St Louis
3h 45m
1 stop
CVG10:35 pmCincinnati Cinci./N. Kentucky
Mar 11
CVG11:56 amCincinnati Cinci./N. Kentucky
5h 36m
1 stop
STL4:32 pmLambert-St Louis
$439

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Apr 3
STL4:45 pmLambert-St Louis
6h 35m
1 stop
CVG12:20 amCincinnati Cinci./N. Kentucky
Apr 6
CVG8:15 pmCincinnati Cinci./N. Kentucky
4h 15m
1 stop
STL11:30 pmLambert-St Louis
$313
Southwest
Apr 1
STL12:20 pmLambert-St Louis
4h 20m
1 stop
CVG5:40 pmCincinnati Cinci./N. Kentucky
Apr 5
CVG6:35 amCincinnati Cinci./N. Kentucky
7h 05m
2 stops
STL12:40 pmLambert-St Louis
$316
Southwest
Apr 3
STL4:55 pmLambert-St Louis
6h 25m
2 stops
CVG12:20 amCincinnati Cinci./N. Kentucky
Apr 6
CVG8:15 pmCincinnati Cinci./N. Kentucky
4h 15m
1 stop
STL11:30 pmLambert-St Louis
$318

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 February 21, 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

Tue 3/10

4:51 pm-12:41 am

1 stop6h 50m

Cincinnati Cinci./N. Kentucky

Wed 3/11

5:45 am-7:17 am

1 stop26h 32m

$170

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 3/6

8:12 pm-11:46 am

1 stop14h 34m

Cincinnati Cinci./N. Kentucky

Tue 3/10

7:43 pm-10:37 am

1 stop15h 54m

$218

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 3/6

8:12 pm-6:33 pm

2 stops21h 21m

Cincinnati Cinci./N. Kentucky

Tue 3/10

7:43 pm-10:37 am

1 stop15h 54m

$222

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 4/1

8:16 pm-2:22 pm

1 stop17h 06m

Cincinnati Cinci./N. Kentucky

Sun 4/5

7:20 am-9:48 am

1 stop27h 28m

$231

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

8:12 pm-5:45 pm

2 stops20h 33m

Cincinnati Cinci./N. Kentucky

Fri 3/13

11:58 am-9:49 am

1 stop22h 51m

$248

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 3/5

3:49 pm-12:59 am

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

Mon 3/9

1:20 pm-11:19 pm

1 stop10h 59m

$250

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 4/1

2:29 pm-11:25 pm

1 stop7h 56m

Cincinnati Cinci./N. Kentucky

Sun 4/5

6:36 am-11:35 am

1 stop5h 59m

$260

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/21

8:53 pm-12:41 am

1 stop26h 48m

Cincinnati Cinci./N. Kentucky

Sun 3/29

7:20 am-9:49 am

1 stop27h 29m

$270

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 3/20

6:57 pm-11:59 pm

1 stop4h 02m

Cincinnati Cinci./N. Kentucky

Fri 3/27

5:00 am-8:51 am

1 stop4h 51m

$277

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 4/3

4:45 pm-12:20 am

1 stop6h 35m

Cincinnati Cinci./N. Kentucky

Mon 4/6

8:15 pm-11:30 pm

1 stop4h 15m

$313

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 February 2026, prices for St. Louis to Cincinnati flights are approximately 3% 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

3h 49m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 3h 49m
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 3h 49m, 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
11,334 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,228 reviews
Search Delta flights
United AirlinesPriceFrom $261Free CancellationRating
7.4
9,335 reviews
Search United Airlines 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
Fairfield
West Chester
Oxford
Dry Ridge
Monroe
Hebron
Edgewood
Bethel
Trenton
Corinth
Georgetown

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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