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Cheap flights from St. Louis to Cincinnati from $70

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 5/28. 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

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
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
1:48 pm - 4:15 pm
CVG
-
STL
27h 27m
2 stops
$173Frontier
Wed, May 13 - Wed, May 20
Frontier Logo
11:28 am - 6:16 pm
STL
-
CVG
5h 48m
1 stop
Frontier Logo
12:12 pm - 4:54 pm
CVG
-
STL
5h 42m
1 stop
$180Frontier
Sun, May 3 - Thu, May 7
Frontier Logo
6:31 pm - 11:49 am
STL
-
CVG
16h 18m
1 stop
Frontier Logo
12:24 pm - 5:30 pm
CVG
-
STL
6h 06m
1 stop
$181Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
8:06 pm - 7:12 pm
STL
-
CVG
22h 06m
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
5:27 pm - 11:41 am
STL
-
CVG
17h 14m
1 stop
Frontier Logo
12:12 pm - 5:33 pm
CVG
-
STL
6h 21m
1 stop
$209Frontier
Fri, May 29 - Sun, May 31
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
8:36 pm - 5:33 pm
CVG
-
STL
21h 57m
2 stops
$213Frontier
Wed, May 20 - Sat, May 23
Multiple Airlines Logo
6:31 pm - 1:55 pm
STL
-
CVG
18h 24m
2 stops
Multiple Airlines Logo
12:24 pm - 5:30 pm
CVG
-
STL
6h 06m
1 stop
$214Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
5:27 pm - 11:04 am
STL
-
CVG
16h 37m
1 stop
Frontier Logo
8:36 pm - 7:23 pm
CVG
-
STL
23h 47m
1 stop
$217Frontier
Wed, May 20 - Sat, May 23
Frontier Logo
4:19 pm - 11:55 am
STL
-
CVG
42h 36m
2 stops
Frontier Logo
12:12 pm - 4:15 pm
CVG
-
STL
5h 03m
1 stop
$221Frontier
Sun, May 17 - Thu, May 21
Frontier Logo
6:55 pm - 11:41 am
STL
-
CVG
15h 46m
1 stop
Frontier Logo
12:12 pm - 4:15 pm
CVG
-
STL
5h 03m
1 stop
$224Frontier
Sun, May 17 - Thu, May 21

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American Airlines flights from St. Louis to Cincinnati

Our best American Airlines deals on St. Louis to Cincinnati flight tickets
American Airlines
May 13
STL7:05 amLambert-St Louis
7h 38m
1 stop
CVG3:43 pmCincinnati Cinci./N. Kentucky
May 20
CVG7:36 amCincinnati Cinci./N. Kentucky
7h 27m
1 stop
STL2:03 pmLambert-St Louis
$243
American Airlines
May 20
STL7:05 amLambert-St Louis
7h 38m
1 stop
CVG3:43 pmCincinnati Cinci./N. Kentucky
May 23
CVG6:00 amCincinnati Cinci./N. Kentucky
3h 32m
1 stop
STL8:32 amLambert-St Louis
$277
American Airlines
May 10
STL8:54 amLambert-St Louis
4h 44m
1 stop
CVG2:38 pmCincinnati Cinci./N. Kentucky
May 17
CVG5:00 amCincinnati Cinci./N. Kentucky
4h 27m
1 stop
STL8:27 amLambert-St Louis
$367

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
May 13
STL2:30 pmLambert-St Louis
7h 25m
2 stops
CVG10:55 pmCincinnati Cinci./N. Kentucky
May 20
CVG7:05 amCincinnati Cinci./N. Kentucky
11h 50m
2 stops
STL5:55 pmLambert-St Louis
$321
Southwest
Jun 15
STL4:35 pmLambert-St Louis
6h 45m
2 stops
CVG12:20 amCincinnati Cinci./N. Kentucky
Jun 16
CVG7:00 amCincinnati Cinci./N. Kentucky
8h 50m
2 stops
STL2:50 pmLambert-St Louis
$331
Southwest
Jun 9
STL3:10 pmLambert-St Louis
6h 55m
2 stops
CVG11:05 pmCincinnati Cinci./N. Kentucky
Jun 16
CVG4:30 pmCincinnati Cinci./N. Kentucky
7h 30m
2 stops
STL11:00 pmLambert-St Louis
$339

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 April 19, 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

Wed 5/13

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

Wed 5/20

1:48 pm-4:15 pm

2 stops27h 27m

$173
Quickest round-trip

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sun 5/3

11:28 am-6:16 pm

1 stop5h 48m

Cincinnati Cinci./N. Kentucky

Thu 5/7

12:12 pm-4:54 pm

1 stop5h 42m

$180

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 6/9

6:31 pm-11:49 am

1 stop16h 18m

Cincinnati Cinci./N. Kentucky

Tue 6/16

12:24 pm-5:30 pm

1 stop6h 06m

$181

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 4/30

8:06 pm-7:12 pm

1 stop22h 06m

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

Fri 5/29

5:27 pm-11:41 am

1 stop17h 14m

Cincinnati Cinci./N. Kentucky

Sun 5/31

12:12 pm-5:33 pm

1 stop6h 21m

$209

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 5/20

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

Sat 5/23

8:36 pm-5:33 pm

2 stops21h 57m

$213

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 6/9

6:31 pm-1:55 pm

2 stops18h 24m

Cincinnati Cinci./N. Kentucky

Tue 6/16

12:24 pm-5:30 pm

1 stop6h 06m

$214

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 5/20

5:27 pm-11:04 am

1 stop16h 37m

Cincinnati Cinci./N. Kentucky

Sat 5/23

8:36 pm-7:23 pm

1 stop23h 47m

$217

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sun 5/17

4:19 pm-11:55 am

2 stops42h 36m

Cincinnati Cinci./N. Kentucky

Thu 5/21

12:12 pm-4:15 pm

1 stop5h 03m

$221

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sun 5/17

6:55 pm-11:41 am

1 stop15h 46m

Cincinnati Cinci./N. Kentucky

Thu 5/21

12:12 pm-4:15 pm

1 stop5h 03m

$224

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

4h 05m

Direct flights

None
The fastest flight from St. Louis to Cincinnati takes 4h 05m
There are no direct flights from St. Louis to Cincinnati. There are no popular flight routes from St. Louis to Cincinnati.
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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 05m, 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
11,619 reviews
Search American Airlines flights
DeltaPriceFrom $196Free CancellationRating
7.9
8,422 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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