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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 2/20. 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
3:49 pm - 12:59 am
STL
-
CVG
8h 10m
1 stop
Frontier Logo
12:17 pm - 11:59 pm
CVG
-
STL
12h 42m
1 stop
$181Frontier
Thu, Feb 26 - Mon, Mar 2
Frontier Logo
1:58 pm - 11:37 pm
STL
-
CVG
8h 39m
1 stop
Frontier Logo
7:20 am - 9:49 am
CVG
-
STL
27h 29m
1 stop
$214Frontier
Sat, Mar 7 - Fri, Mar 13
Frontier Logo
8:13 pm - 6:36 pm
STL
-
CVG
21h 23m
1 stop
Frontier Logo
7:59 pm - 6:50 am
CVG
-
STL
35h 51m
2 stops
$226Frontier
Wed, Apr 22 - Mon, Apr 27
Frontier Logo
9:05 pm - 12:19 am
STL
-
CVG
26h 14m
1 stop
Frontier Logo
7:20 am - 9:49 am
CVG
-
STL
27h 29m
1 stop
$230Frontier
Sun, Mar 15 - Sun, Mar 22
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
$245Frontier
Mon, Mar 2 - Fri, Mar 6
American Airlines Logo
7:05 am - 3:43 pm
STL
-
CVG
7h 38m
1 stop
American Airlines Logo
7:46 pm - 11:46 pm
CVG
-
STL
5h 00m
1 stop
$261American Airlines
Wed, Apr 22 - Mon, Apr 27
Frontier Logo
9:05 pm - 6:31 pm
STL
-
CVG
44h 26m
2 stops
Frontier Logo
7:41 pm - 1:34 pm
CVG
-
STL
18h 53m
1 stop
$262Frontier
Sun, Mar 15 - Sun, Mar 22
Delta Logo
6:50 pm - 12:11 am
STL
-
CVG
4h 21m
1 stop
Delta Logo
5:35 am - 10:34 am
CVG
-
STL
5h 59m
1 stop
$267Delta
Mon, Apr 20 - Wed, Apr 22
American Airlines Logo
8:00 am - 5:25 pm
STL
-
CVG
8h 25m
1 stop
American Airlines Logo
5:00 am - 8:51 am
CVG
-
STL
4h 51m
1 stop
$271American Airlines
Sat, Mar 7 - Fri, Mar 13
Frontier Logo
1:58 pm - 11:37 pm
STL
-
CVG
8h 39m
1 stop
Frontier Logo
1:20 pm - 11:19 pm
CVG
-
STL
10h 59m
1 stop
$289Frontier
Sat, Mar 7 - Fri, Mar 13

American Airlines flights from St. Louis to Cincinnati

Our best American Airlines deals on St. Louis to Cincinnati flight tickets
American Airlines
Apr 22
STL7:05 amLambert-St Louis
7h 38m
1 stop
CVG3:43 pmCincinnati Cinci./N. Kentucky
Apr 27
CVG7:46 pmCincinnati Cinci./N. Kentucky
5h 00m
1 stop
STL11:46 pmLambert-St Louis
$261
American Airlines
Mar 7
STL8:00 amLambert-St Louis
8h 25m
1 stop
CVG5:25 pmCincinnati Cinci./N. Kentucky
Mar 13
CVG5:00 amCincinnati Cinci./N. Kentucky
4h 51m
1 stop
STL8:51 amLambert-St Louis
$271
American Airlines
Apr 3
STL9:37 amLambert-St Louis
6h 48m
1 stop
CVG5:25 pmCincinnati Cinci./N. Kentucky
Apr 6
CVG5:02 amCincinnati Cinci./N. Kentucky
4h 33m
1 stop
STL8:35 amLambert-St Louis
$327

Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Feb 26
STL3:49 pmLambert-St Louis
8h 10m
1 stop
CVG12:59 amCincinnati Cinci./N. Kentucky
Mar 2
CVG12:17 pmCincinnati Cinci./N. Kentucky
12h 42m
1 stop
STL11:59 pmLambert-St Louis
$181
Frontier
Mar 7
STL1:58 pmLambert-St Louis
8h 39m
1 stop
CVG11:37 pmCincinnati Cinci./N. Kentucky
Mar 13
CVG11:58 amCincinnati Cinci./N. Kentucky
22h 51m
1 stop
STL9:49 amLambert-St Louis
$214
Frontier
Apr 22
STL8:13 pmLambert-St Louis
21h 23m
1 stop
CVG6:36 pmCincinnati Cinci./N. Kentucky
Apr 27
CVG7:59 pmCincinnati Cinci./N. Kentucky
35h 51m
2 stops
STL6:50 amLambert-St Louis
$226

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 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

Thu 2/26

3:49 pm-12:59 am

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

Mon 3/2

12:17 pm-11:59 pm

1 stop12h 42m

$181

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

1:58 pm-11:37 pm

1 stop8h 39m

Cincinnati Cinci./N. Kentucky

Fri 3/13

7:20 am-9:49 am

1 stop27h 29m

$214

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 4/22

8:13 pm-6:36 pm

1 stop21h 23m

Cincinnati Cinci./N. Kentucky

Mon 4/27

7:59 pm-6:50 am

2 stops35h 51m

$226

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sun 3/15

9:05 pm-12:19 am

1 stop26h 14m

Cincinnati Cinci./N. Kentucky

Sun 3/22

7:20 am-9:49 am

1 stop27h 29m

$230

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 3/2

3:49 pm-12:59 am

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

Fri 3/6

1:20 pm-11:19 pm

1 stop10h 59m

$245

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 4/22

7:05 am-3:43 pm

1 stop7h 38m

Cincinnati Cinci./N. Kentucky

Mon 4/27

7:46 pm-11:46 pm

1 stop5h 00m

$261

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sun 3/15

9:05 pm-6:31 pm

2 stops44h 26m

Cincinnati Cinci./N. Kentucky

Sun 3/22

7:41 pm-1:34 pm

1 stop18h 53m

$262

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 4/20

6:50 pm-12:11 am

1 stop4h 21m

Cincinnati Cinci./N. Kentucky

Wed 4/22

5:35 am-10:34 am

1 stop5h 59m

$267

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

8:00 am-5:25 pm

1 stop8h 25m

Cincinnati Cinci./N. Kentucky

Fri 3/13

5:00 am-8:51 am

1 stop4h 51m

$271

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

1:58 pm-11:37 pm

1 stop8h 39m

Cincinnati Cinci./N. Kentucky

Fri 3/13

1:20 pm-11:19 pm

1 stop10h 59m

$289

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 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 26m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 3h 26m
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 26m, 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
11,297 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,205 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
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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