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Cheap flights from St. Louis to Cincinnati from $96

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 3/25. 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

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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
11:21 am - 6:05 pm
STL
-
CVG
5h 44m
1 stop
Frontier Logo
4:26 pm - 11:19 pm
CVG
-
STL
7h 53m
1 stop
$201Frontier
Thu, Apr 30 - Sat, May 2
Frontier Logo
11:21 am - 6:05 pm
STL
-
CVG
5h 44m
1 stop
Frontier Logo
4:26 pm - 11:19 pm
CVG
-
STL
7h 53m
1 stop
$202Frontier
Thu, Apr 30 - Sat, May 2
Frontier Logo
8:23 pm - 1:44 pm
STL
-
CVG
16h 21m
2 stops
Frontier Logo
6:53 pm - 6:50 am
CVG
-
STL
12h 57m
1 stop
$224Frontier
Fri, Apr 24 - Sun, Apr 26
Frontier Logo
4:59 pm - 11:20 pm
STL
-
CVG
29h 21m
1 stop
Frontier Logo
7:46 pm - 6:50 am
CVG
-
STL
12h 04m
1 stop
$232Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
8:39 am - 7:23 pm
STL
-
CVG
9h 44m
1 stop
Frontier Logo
5:20 pm - 11:19 pm
CVG
-
STL
6h 59m
1 stop
$235Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
8:06 pm - 7:12 pm
STL
-
CVG
22h 06m
1 stop
Frontier Logo
5:20 pm - 11:19 pm
CVG
-
STL
6h 59m
1 stop
$238Frontier
Thu, Apr 23 - Mon, Apr 27
Frontier Logo
8:06 pm - 10:37 am
STL
-
CVG
13h 31m
2 stops
Frontier Logo
6:53 pm - 6:50 am
CVG
-
STL
12h 57m
1 stop
$239Frontier
Fri, Apr 17 - Sun, Apr 19
Frontier Logo
11:25 am - 5:33 pm
STL
-
CVG
5h 08m
1 stop
Frontier Logo
9:29 pm - 6:50 am
CVG
-
STL
34h 21m
2 stops
$244Frontier
Thu, Apr 23 - Mon, Apr 27
Frontier Logo
8:17 pm - 9:22 am
STL
-
CVG
12h 05m
2 stops
Frontier Logo
6:44 pm - 6:50 am
CVG
-
STL
13h 06m
1 stop
$245Frontier
Mon, Apr 20 - Thu, Apr 23
Frontier Logo
8:17 pm - 7:12 pm
STL
-
CVG
21h 55m
1 stop
Frontier Logo
4:26 pm - 11:19 pm
CVG
-
STL
7h 53m
1 stop
$247Frontier
Sat, Apr 18 - Sat, Apr 25

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Apr 29
STL1:45 pmLambert-St Louis
6h 30m
2 stops
CVG9:15 pmCincinnati Cinci./N. Kentucky
May 2
CVG5:45 amCincinnati Cinci./N. Kentucky
5h 15m
1 stop
STL10:00 amLambert-St Louis
$278
Southwest
Apr 18
STL2:05 pmLambert-St Louis
5h 40m
2 stops
CVG8:45 pmCincinnati Cinci./N. Kentucky
Apr 25
CVG12:50 pmCincinnati Cinci./N. Kentucky
7h 55m
2 stops
STL7:45 pmLambert-St Louis
$285
Southwest
Apr 23
STL4:00 pmLambert-St Louis
6h 25m
1 stop
CVG11:25 pmCincinnati Cinci./N. Kentucky
Apr 27
CVG4:00 pmCincinnati Cinci./N. Kentucky
8h 15m
2 stops
STL11:15 pmLambert-St Louis
$296

Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Apr 30
STL11:21 amLambert-St Louis
5h 44m
1 stop
CVG6:05 pmCincinnati Cinci./N. Kentucky
May 2
CVG4:26 pmCincinnati Cinci./N. Kentucky
7h 53m
1 stop
STL11:19 pmLambert-St Louis
$201
Frontier
Apr 30
STL11:21 amLambert-St Louis
5h 44m
1 stop
CVG6:05 pmCincinnati Cinci./N. Kentucky
May 2
CVG4:26 pmCincinnati Cinci./N. Kentucky
7h 53m
1 stop
STL11:19 pmLambert-St Louis
$202
Frontier
Apr 24
STL8:23 pmLambert-St Louis
16h 21m
2 stops
CVG1:44 pmCincinnati Cinci./N. Kentucky
Apr 26
CVG6:53 pmCincinnati Cinci./N. Kentucky
12h 57m
1 stop
STL6:50 amLambert-St Louis
$224

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 March 13, 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
Quickest round-trip

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 4/30

11:21 am-6:05 pm

1 stop5h 44m

Cincinnati Cinci./N. Kentucky

Sat 5/2

4:26 pm-11:19 pm

1 stop7h 53m

$201

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 4/30

11:21 am-6:05 pm

1 stop5h 44m

Cincinnati Cinci./N. Kentucky

Sat 5/2

4:26 pm-11:19 pm

1 stop7h 53m

$202

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 4/24

8:23 pm-1:44 pm

2 stops16h 21m

Cincinnati Cinci./N. Kentucky

Sun 4/26

6:53 pm-6:50 am

1 stop12h 57m

$224

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 4/13

4:59 pm-11:20 pm

1 stop29h 21m

Cincinnati Cinci./N. Kentucky

Fri 4/17

7:46 pm-6:50 am

1 stop12h 04m

$232

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 4/17

8:39 am-7:23 pm

1 stop9h 44m

Cincinnati Cinci./N. Kentucky

Mon 4/20

5:20 pm-11:19 pm

1 stop6h 59m

$235

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 4/23

8:06 pm-7:12 pm

1 stop22h 06m

Cincinnati Cinci./N. Kentucky

Mon 4/27

5:20 pm-11:19 pm

1 stop6h 59m

$238

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 4/17

8:06 pm-10:37 am

2 stops13h 31m

Cincinnati Cinci./N. Kentucky

Sun 4/19

6:53 pm-6:50 am

1 stop12h 57m

$239

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 4/23

11:25 am-5:33 pm

1 stop5h 08m

Cincinnati Cinci./N. Kentucky

Mon 4/27

9:29 pm-6:50 am

2 stops34h 21m

$244

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 4/20

8:17 pm-9:22 am

2 stops12h 05m

Cincinnati Cinci./N. Kentucky

Thu 4/23

6:44 pm-6:50 am

1 stop13h 06m

$245

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 4/18

8:17 pm-7:12 pm

1 stop21h 55m

Cincinnati Cinci./N. Kentucky

Sat 4/25

4:26 pm-11:19 pm

1 stop7h 53m

$247

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 March 2026, prices for St. Louis to Cincinnati flights are approximately 41% 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 55m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 4h 55m
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 55m, 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
7.1
11,446 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,285 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
Dry Ridge
Monroe
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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