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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 2/28. 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 - 3:03 pm
STL
-
CVG
20h 21m
1 stop
Frontier Logo
12:30 pm - 11:33 pm
CVG
-
STL
12h 03m
1 stop
$159Frontier
Tue, Jan 27 - Sat, Jan 31
Frontier Logo
10:01 pm - 11:57 pm
STL
-
CVG
24h 56m
1 stop
Frontier Logo
5:39 pm - 11:33 pm
CVG
-
STL
6h 54m
1 stop
$169Frontier
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
3:49 pm - 12:59 am
STL
-
CVG
8h 10m
1 stop
Frontier Logo
3:20 pm - 10:27 pm
CVG
-
STL
8h 07m
1 stop
$181Frontier
Mon, Feb 23 - Wed, Feb 25
Frontier Logo
3:49 pm - 2:10 pm
STL
-
CVG
21h 21m
1 stop
Frontier Logo
8:15 am - 10:27 pm
CVG
-
STL
15h 12m
1 stop
$214Frontier
Tue, Feb 10 - Tue, Feb 17
Frontier Logo
12:36 pm - 9:25 pm
STL
-
CVG
7h 49m
1 stop
Frontier Logo
5:15 am - 1:03 pm
CVG
-
STL
8h 48m
1 stop
$240Frontier
Sat, Feb 28 - Sat, Mar 7
Frontier Logo
8:22 pm - 2:10 pm
STL
-
CVG
16h 48m
2 stops
Frontier Logo
3:20 pm - 10:27 pm
CVG
-
STL
8h 07m
1 stop
$242Frontier
Mon, Feb 23 - Wed, Feb 25
Frontier Logo
8:17 pm - 11:12 am
STL
-
CVG
13h 55m
2 stops
Frontier Logo
7:00 am - 1:09 pm
CVG
-
STL
7h 09m
1 stop
$244Frontier
Wed, Feb 25 - Fri, Feb 27
Multiple Airlines Logo
3:49 pm - 2:10 pm
STL
-
CVG
21h 21m
1 stop
Multiple Airlines Logo
1:31 pm - 6:51 am
CVG
-
STL
18h 20m
2 stops
$250Multiple Airlines
Tue, Feb 10 - Tue, Feb 17
Frontier Logo
1:58 pm - 11:20 pm
STL
-
CVG
8h 22m
1 stop
Frontier Logo
1:20 pm - 6:50 pm
CVG
-
STL
6h 30m
1 stop
$259Frontier
Sat, Mar 7 - Fri, Mar 13
Southwest Logo
2:15 pm - 10:25 pm
STL
-
CVG
7h 10m
2 stops
Southwest Logo
1:20 pm - 8:00 pm
CVG
-
STL
7h 40m
2 stops
$268Southwest
Tue, Feb 10 - Tue, Feb 17

United Airlines flights from St. Louis to Cincinnati

Our best United Airlines deals on St. Louis to Cincinnati flight tickets
United Airlines
Feb 4
STL10:10 amLambert-St Louis
4h 20m
1 stop
CVG3:30 pmCincinnati Cinci./N. Kentucky
Feb 5
CVG7:00 amCincinnati Cinci./N. Kentucky
6h 29m
1 stop
STL12:29 pmLambert-St Louis
$280
United Airlines
Feb 18
STL9:55 amLambert-St Louis
4h 33m
1 stop
CVG3:28 pmCincinnati Cinci./N. Kentucky
Feb 21
CVG6:05 amCincinnati Cinci./N. Kentucky
5h 53m
1 stop
STL10:58 amLambert-St Louis
$317
United Airlines
Feb 18
STL8:30 amLambert-St Louis
4h 50m
1 stop
CVG2:20 pmCincinnati Cinci./N. Kentucky
Feb 21
CVG11:20 amCincinnati Cinci./N. Kentucky
6h 40m
1 stop
STL5:00 pmLambert-St Louis
$340

Delta flights from St. Louis to Cincinnati

Our best Delta deals on St. Louis to Cincinnati flight tickets
Delta
Feb 12
STL6:00 amLambert-St Louis
4h 08m
1 stop
CVG11:08 amCincinnati Cinci./N. Kentucky
Feb 15
CVG6:00 amCincinnati Cinci./N. Kentucky
4h 06m
1 stop
STL9:06 amLambert-St Louis
$308
Delta
Feb 12
STL6:35 amLambert-St Louis
5h 45m
1 stop
CVG1:20 pmCincinnati Cinci./N. Kentucky
Feb 15
CVG6:00 amCincinnati Cinci./N. Kentucky
4h 06m
1 stop
STL9:06 amLambert-St Louis
$328

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 January 15, 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 1/27

5:42 pm-3:03 pm

1 stop20h 21m

Cincinnati Cinci./N. Kentucky

Sat 1/31

12:30 pm-11:33 pm

1 stop12h 03m

$159

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/29

10:01 pm-11:57 pm

1 stop24h 56m

Cincinnati Cinci./N. Kentucky

Mon 2/2

5:39 pm-11:33 pm

1 stop6h 54m

$169

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 2/23

3:49 pm-12:59 am

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

Wed 2/25

3:20 pm-10:27 pm

1 stop8h 07m

$181

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 2/10

3:49 pm-2:10 pm

1 stop21h 21m

Cincinnati Cinci./N. Kentucky

Tue 2/17

8:15 am-10:27 pm

1 stop15h 12m

$214

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 2/28

12:36 pm-9:25 pm

1 stop7h 49m

Cincinnati Cinci./N. Kentucky

Sat 3/7

5:15 am-1:03 pm

1 stop8h 48m

$240

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 2/23

8:22 pm-2:10 pm

2 stops16h 48m

Cincinnati Cinci./N. Kentucky

Wed 2/25

3:20 pm-10:27 pm

1 stop8h 07m

$242

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 2/25

8:17 pm-11:12 am

2 stops13h 55m

Cincinnati Cinci./N. Kentucky

Fri 2/27

7:00 am-1:09 pm

1 stop7h 09m

$244

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 2/10

3:49 pm-2:10 pm

1 stop21h 21m

Cincinnati Cinci./N. Kentucky

Tue 2/17

1:31 pm-6:51 am

2 stops18h 20m

$250

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

1:58 pm-11:20 pm

1 stop8h 22m

Cincinnati Cinci./N. Kentucky

Fri 3/13

1:20 pm-6:50 pm

1 stop6h 30m

$259

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 2/10

2:15 pm-10:25 pm

2 stops7h 10m

Cincinnati Cinci./N. Kentucky

Tue 2/17

1:20 pm-8:00 pm

2 stops7h 40m

$268

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 January 2026, prices for St. Louis to Cincinnati flights are approximately 16% 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 15m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 3h 15m
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 15m, 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
11,129 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,048 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
Lawrenceburg
Williamstown
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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