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Cheap flights from St. Louis to Cincinnati from $62

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 8/30. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Cincinnati

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:17 pm - 11:21 am
STL
-
CVG
16h 04m
1 stop
Frontier Logo
12:26 pm - 5:22 pm
CVG
-
STL
5h 56m
1 stop
$120Frontier
Thu, Aug 20 - Sun, Aug 23
Frontier Logo
4:57 pm - 11:48 am
STL
-
CVG
17h 51m
1 stop
Frontier Logo
12:26 pm - 5:22 pm
CVG
-
STL
5h 56m
1 stop
$121Frontier
Fri, Aug 14 - Fri, Aug 21
Frontier Logo
4:57 pm - 11:48 am
STL
-
CVG
17h 51m
1 stop
Frontier Logo
12:26 pm - 5:22 pm
CVG
-
STL
5h 56m
1 stop
$122Frontier
Fri, Aug 14 - Thu, Aug 20
Frontier Logo
4:57 pm - 11:13 am
STL
-
CVG
17h 16m
1 stop
Frontier Logo
12:26 pm - 5:22 pm
CVG
-
STL
5h 56m
1 stop
$123Frontier
Wed, Aug 12 - Fri, Aug 21
Frontier Logo
6:34 pm - 11:48 am
STL
-
CVG
16h 14m
1 stop
Frontier Logo
12:18 pm - 8:57 am
CVG
-
STL
21h 39m
1 stop
$124Frontier
Thu, Aug 13 - Sun, Aug 16
Frontier Logo
10:35 am - 11:43 am
STL
-
CVG
24h 08m
1 stop
Frontier Logo
12:48 pm - 9:40 am
CVG
-
STL
21h 52m
1 stop
$125Frontier
Wed, Oct 21 - Wed, Oct 28
Frontier Logo
10:35 am - 8:21 am
STL
-
CVG
20h 46m
2 stops
Frontier Logo
12:48 pm - 9:40 am
CVG
-
STL
21h 52m
1 stop
$151Frontier
Wed, Oct 21 - Wed, Oct 28
Frontier Logo
4:57 pm - 11:48 am
STL
-
CVG
17h 51m
1 stop
Frontier Logo
12:18 pm - 5:37 pm
CVG
-
STL
6h 19m
1 stop
$166Frontier
Fri, Aug 14 - Sun, Aug 16
Frontier Logo
6:17 pm - 10:05 am
STL
-
CVG
14h 48m
2 stops
Frontier Logo
12:26 pm - 5:22 pm
CVG
-
STL
5h 56m
1 stop
$176Frontier
Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
4:57 pm - 11:08 pm
STL
-
CVG
29h 11m
2 stops
Multiple Airlines Logo
12:26 pm - 5:22 pm
CVG
-
STL
5h 56m
1 stop
$178Multiple Airlines
Fri, Aug 14 - Fri, Aug 21

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Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Aug 20
STL6:17 pmLambert-St Louis
16h 04m
1 stop
CVG11:21 amCincinnati Cinci./N. Kentucky
Aug 23
CVG12:26 pmCincinnati Cinci./N. Kentucky
5h 56m
1 stop
STL5:22 pmLambert-St Louis
$120
Frontier
Aug 14
STL4:57 pmLambert-St Louis
17h 51m
1 stop
CVG11:48 amCincinnati Cinci./N. Kentucky
Aug 21
CVG12:26 pmCincinnati Cinci./N. Kentucky
5h 56m
1 stop
STL5:22 pmLambert-St Louis
$121
Frontier
Aug 14
STL4:57 pmLambert-St Louis
17h 51m
1 stop
CVG11:48 amCincinnati Cinci./N. Kentucky
Aug 20
CVG12:26 pmCincinnati Cinci./N. Kentucky
5h 56m
1 stop
STL5:22 pmLambert-St Louis
$122

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Aug 1
STL3:45 pmLambert-St Louis
7h 05m
2 stops
CVG11:50 pmCincinnati Cinci./N. Kentucky
Aug 5
CVG9:05 amCincinnati Cinci./N. Kentucky
8h 40m
2 stops
STL4:45 pmLambert-St Louis
$469
Southwest
Aug 2
STL5:50 amLambert-St Louis
6h 35m
2 stops
CVG1:25 pmCincinnati Cinci./N. Kentucky
Aug 6
CVG11:10 amCincinnati Cinci./N. Kentucky
9h 45m
2 stops
STL7:55 pmLambert-St Louis
$473
Southwest
Aug 4
STL10:15 amLambert-St Louis
8h 55m
2 stops
CVG8:10 pmCincinnati Cinci./N. Kentucky
Aug 6
CVG7:05 amCincinnati Cinci./N. Kentucky
4h 05m
1 stop
STL10:10 amLambert-St Louis
$534

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 July 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

Cheapest round-trip

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 8/20

6:17 pm-11:21 am

1 stop16h 04m

Cincinnati Cinci./N. Kentucky

Sun 8/23

12:26 pm-5:22 pm

1 stop5h 56m

$120

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 8/14

4:57 pm-11:48 am

1 stop17h 51m

Cincinnati Cinci./N. Kentucky

Fri 8/21

12:26 pm-5:22 pm

1 stop5h 56m

$121

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 8/14

4:57 pm-11:48 am

1 stop17h 51m

Cincinnati Cinci./N. Kentucky

Thu 8/20

12:26 pm-5:22 pm

1 stop5h 56m

$122

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 8/12

4:57 pm-11:13 am

1 stop17h 16m

Cincinnati Cinci./N. Kentucky

Fri 8/21

12:26 pm-5:22 pm

1 stop5h 56m

$123

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 8/13

6:34 pm-11:48 am

1 stop16h 14m

Cincinnati Cinci./N. Kentucky

Sun 8/16

12:18 pm-8:57 am

1 stop21h 39m

$124

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 10/21

10:35 am-11:43 am

1 stop24h 08m

Cincinnati Cinci./N. Kentucky

Wed 10/28

12:48 pm-9:40 am

1 stop21h 52m

$125

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 10/21

10:35 am-8:21 am

2 stops20h 46m

Cincinnati Cinci./N. Kentucky

Wed 10/28

12:48 pm-9:40 am

1 stop21h 52m

$151

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 8/14

4:57 pm-11:48 am

1 stop17h 51m

Cincinnati Cinci./N. Kentucky

Sun 8/16

12:18 pm-5:37 pm

1 stop6h 19m

$166
Quickest round-trip

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 8/20

6:17 pm-10:05 am

2 stops14h 48m

Cincinnati Cinci./N. Kentucky

Sun 8/23

12:26 pm-5:22 pm

1 stop5h 56m

$176

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 8/14

4:57 pm-11:08 pm

2 stops29h 11m

Cincinnati Cinci./N. Kentucky

Fri 8/21

12:26 pm-5:22 pm

1 stop5h 56m

$178

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

What is the typical price of a round-trip flight between St. Louis and Cincinnati?

What is the cheapest month to fly to Cincinnati?

The month of October is, on average, the cheapest month to fly to Cincinnati from St. Louis, with most prices found around $0. If you aren’t able to travel to Cincinnati during the month of October, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $0.

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

As of July 2026, prices for St. Louis to Cincinnati flights are approximately 89% more expensive 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 28m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 4h 28m
There are no direct flights from St. Louis to Cincinnati. There are no popular flight routes from St. Louis to Cincinnati.
Search flight deals

Frequently asked questions about flying from St. Louis to Cincinnati

  • 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 28m, 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
FrontierPriceFrom $156Free CancellationRating
5.6
2,779 reviews
Search Frontier flights
DeltaPriceFrom $196Free CancellationRating
7.8
8,473 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
West Chester
Lawrenceburg
Williamstown
Blue Ash
Fairfield
Oxford
Hebron
Monroe
Dry Ridge
Bethel
Trenton
Corinth
Georgetown
Edgewood

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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