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Cheap flights from St. Louis to Cincinnati from $88

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 5/29. 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

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
4:19 pm - 11:55 pm
STL
-
CVG
6h 36m
1 stop
Frontier Logo
5:37 pm - 12:21 am
CVG
-
STL
7h 44m
1 stop
$140Frontier
vie., may. 15 - sáb., may. 16
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
7:49 pm - 5:33 pm
CVG
-
STL
22h 44m
1 stop
$164Frontier
mié., may. 20 - lun., may. 25
Frontier Logo
4:19 pm - 11:55 pm
STL
-
CVG
6h 36m
1 stop
Frontier Logo
5:37 pm - 12:21 am
CVG
-
STL
7h 44m
1 stop
$181Frontier
vie., may. 15 - sáb., may. 16
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
12:12 pm - 5:33 pm
CVG
-
STL
6h 21m
1 stop
$186Frontier
mié., may. 13 - jue., jun. 4
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
12:12 pm - 5:33 pm
CVG
-
STL
6h 21m
1 stop
$195Frontier
mié., may. 20 - mar., may. 26
Multiple Airlines Logo
5:27 pm - 8:48 am
STL
-
CVG
14h 21m
2 stops
Multiple Airlines Logo
7:49 pm - 5:33 pm
CVG
-
STL
22h 44m
1 stop
$198Multiple Airlines
mié., may. 20 - lun., may. 25
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
7:49 pm - 5:33 pm
CVG
-
STL
22h 44m
1 stop
$199Frontier
sáb., may. 16 - lun., may. 25
Frontier Logo
4:19 pm - 11:29 pm
STL
-
CVG
6h 10m
1 stop
Frontier Logo
12:12 pm - 5:33 pm
CVG
-
STL
6h 21m
1 stop
$201Frontier
sáb., may. 16 - jue., may. 28
Frontier Logo
4:19 pm - 11:29 pm
STL
-
CVG
6h 10m
1 stop
Frontier Logo
12:12 pm - 5:33 pm
CVG
-
STL
6h 21m
1 stop
$206Frontier
sáb., may. 16 - mar., may. 26
Frontier Logo
6:51 pm - 12:00 pm
STL
-
CVG
16h 09m
2 stops
Frontier Logo
7:49 pm - 5:33 pm
CVG
-
STL
22h 44m
1 stop
$207Frontier
mar., may. 19 - lun., may. 25

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Delta flights from St. Louis to Cincinnati

Our best Delta deals on St. Louis to Cincinnati flight tickets
Delta
May 19
STL7:05 amLambert-St Louis
4h 48m
1 stop
CVG12:53 pmCincinnati Cinci./N. Kentucky
May 27
CVG6:00 pmCincinnati Cinci./N. Kentucky
4h 09m
1 stop
STL9:09 pmLambert-St Louis
$213
Delta
May 19
STL6:00 amLambert-St Louis
3h 47m
1 stop
CVG10:47 amCincinnati Cinci./N. Kentucky
May 28
CVG6:00 pmCincinnati Cinci./N. Kentucky
4h 38m
1 stop
STL9:38 pmLambert-St Louis
$234
Delta
May 19
STL6:04 pmLambert-St Louis
3h 25m
1 stop
CVG10:29 pmCincinnati Cinci./N. Kentucky
May 29
CVG1:59 pmCincinnati Cinci./N. Kentucky
4h 57m
1 stop
STL5:56 pmLambert-St Louis
$254

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
May 26
STL2:30 pmLambert-St Louis
5h 45m
1 stop
CVG9:15 pmCincinnati Cinci./N. Kentucky
May 27
CVG6:15 amCincinnati Cinci./N. Kentucky
7h 35m
2 stops
STL12:50 pmLambert-St Louis
$223
Southwest
May 19
STL2:30 pmLambert-St Louis
7h 25m
2 stops
CVG10:55 pmCincinnati Cinci./N. Kentucky
May 26
CVG7:35 pmCincinnati Cinci./N. Kentucky
3h 35m
1 stop
STL10:10 pmLambert-St Louis
$227
Southwest
May 26
STL5:35 amLambert-St Louis
6h 05m
2 stops
CVG12:40 pmCincinnati Cinci./N. Kentucky
May 27
CVG7:05 amCincinnati Cinci./N. Kentucky
9h 05m
2 stops
STL3:10 pmLambert-St Louis
$232

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 abril 25, 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

vie. 5/15

4:19 pm-11:55 pm

1 stop6h 36m

Cincinnati Cinci./N. Kentucky

sáb. 5/16

5:37 pm-12:21 am

1 stop7h 44m

$140

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 5/20

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

lun. 5/25

7:49 pm-5:33 pm

1 stop22h 44m

$164

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

vie. 5/15

4:19 pm-11:55 pm

1 stop6h 36m

Cincinnati Cinci./N. Kentucky

sáb. 5/16

5:37 pm-12:21 am

1 stop7h 44m

$181

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 5/13

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

jue. 6/4

12:12 pm-5:33 pm

1 stop6h 21m

$186

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 5/20

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

mar. 5/26

12:12 pm-5:33 pm

1 stop6h 21m

$195

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 5/20

5:27 pm-8:48 am

2 stops14h 21m

Cincinnati Cinci./N. Kentucky

lun. 5/25

7:49 pm-5:33 pm

1 stop22h 44m

$198

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 5/16

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

lun. 5/25

7:49 pm-5:33 pm

1 stop22h 44m

$199
Quickest round-trip

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 5/16

4:19 pm-11:29 pm

1 stop6h 10m

Cincinnati Cinci./N. Kentucky

jue. 5/28

12:12 pm-5:33 pm

1 stop6h 21m

$201

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 5/16

4:19 pm-11:29 pm

1 stop6h 10m

Cincinnati Cinci./N. Kentucky

mar. 5/26

12:12 pm-5:33 pm

1 stop6h 21m

$206

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 5/19

6:51 pm-12:00 pm

2 stops16h 09m

Cincinnati Cinci./N. Kentucky

lun. 5/25

7:49 pm-5:33 pm

1 stop22h 44m

$207

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

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

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

As of April 2026, prices for St. Louis to Cincinnati flights are approximately 25% 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 33m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 3h 33m
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 3h 33m, 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 $176Free CancellationRating
7.1
11,672 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,458 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
Williamstown
Middletown
Lawrenceburg
Blue Ash
West Chester
Fairfield
Oxford
Monroe
Dry Ridge
Hebron
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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