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Cheap flights from St. Louis to Cincinnati from $48

1 adult
1 adult, Economy, 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
2:29 pm - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
20h 09m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 1:10 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 27m1 stop Atlanta Hartsfield-Jackson
$87Frontier
Wed, Sep 30 - Tue, Oct 6
Frontier Logo
6:35 pm - 10:42 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
15h 07m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 57m1 stop Atlanta Hartsfield-Jackson
$133Frontier
Fri, Oct 16 - Fri, Oct 23
Frontier Logo
2:29 pm - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
20h 09m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 11:13 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
35h 30m2 stops Atlanta Hartsfield-Jackson Orlando
$141Frontier
Wed, Sep 30 - Wed, Oct 7
Frontier Logo
12:17 pm - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
22h 21m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 1:10 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 27m1 stop Atlanta Hartsfield-Jackson
$142Frontier
Tue, Sep 29 - Tue, Oct 6
Frontier Logo
2:29 pm - 11:51 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
32h 22m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
12:43 pm - 1:10 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 27m1 stop Atlanta Hartsfield-Jackson
$144Frontier
Wed, Sep 30 - Tue, Oct 6
Frontier Logo
6:35 pm - 10:42 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
15h 07m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 57m1 stop Atlanta Hartsfield-Jackson
$181Frontier
Fri, Oct 16 - Mon, Oct 19
Frontier Logo
6:35 pm - 10:42 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
15h 07m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 11:13 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
11h 30m2 stops Atlanta Hartsfield-Jackson Orlando
$189Frontier
Fri, Oct 16 - Mon, Oct 19
Frontier Logo
6:35 pm - 10:42 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
15h 07m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:43 pm - 11:13 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
11h 30m2 stops Atlanta Hartsfield-Jackson Orlando
$207Frontier
Fri, Oct 16 - Fri, Oct 23
Southwest Logo
1:40 pm - 9:50 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
7h 10m1 stop Baltimore/Washington
Southwest Logo
3:30 pm - 11:15 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
8h 45m1 stop Denver Intl
$279Southwest
Tue, Sep 29 - Tue, Oct 6
United Airlines Logo
6:00 am - 11:11 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
4h 11m1 stop Chicago O'Hare Intl
United Airlines Logo
10:50 am - 3:43 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 53m1 stop Chicago O'Hare Intl
$279United Airlines
Thu, Oct 1 - Thu, Oct 8

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United Airlines flights from St. Louis to Cincinnati

Our best United Airlines deals on St. Louis to Cincinnati flight tickets
United Airlines
Sep 11
STL9:40 amLambert-St Louis
4h 43m
1 stop
CVG3:23 pmCincinnati Cinci./N. Kentucky
Sep 12
CVG11:17 amCincinnati Cinci./N. Kentucky
3h 58m
1 stop
STL2:15 pmLambert-St Louis
$279
United Airlines
Nov 22
STL6:50 pmLambert-St Louis
3h 52m
1 stop
CVG11:42 pmCincinnati Cinci./N. Kentucky
Nov 23
CVG6:00 amCincinnati Cinci./N. Kentucky
5h 12m
1 stop
STL10:12 amLambert-St Louis
$313
United Airlines
Oct 14
STL6:00 amLambert-St Louis
4h 11m
1 stop
CVG11:11 amCincinnati Cinci./N. Kentucky
Oct 17
CVG11:52 amCincinnati Cinci./N. Kentucky
4h 51m
1 stop
STL3:43 pmLambert-St Louis
$387

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Sep 29
STL10:15 amLambert-St Louis
9h 00m
2 stops
CVG8:15 pmCincinnati Cinci./N. Kentucky
Oct 6
CVG8:35 amCincinnati Cinci./N. Kentucky
7h 25m
2 stops
STL3:00 pmLambert-St Louis
$289
Southwest
Oct 16
STL4:30 pmLambert-St Louis
6h 40m
2 stops
CVG12:10 amCincinnati Cinci./N. Kentucky
Oct 23
CVG7:20 pmCincinnati Cinci./N. Kentucky
6h 20m
2 stops
STL12:40 amLambert-St Louis
$309
Southwest
Sep 21
STL2:20 pmLambert-St Louis
5h 10m
1 stop
CVG8:30 pmCincinnati Cinci./N. Kentucky
Sep 23
CVG7:00 amCincinnati Cinci./N. Kentucky
9h 10m
2 stops
STL3:10 pmLambert-St Louis
$334

momondo Fare Finder

 
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 Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Wed 9/30

2:29 pm-11:38 am

1 stop20h 09m

Cincinnati Cinci./N. Kentucky

Tue 10/6

12:43 pm-1:10 pm

1 stop25h 27m

$87

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Fri 10/16

6:35 pm-10:42 am

1 stop15h 07m

Cincinnati Cinci./N. Kentucky

Fri 10/23

12:43 pm-5:40 pm

1 stop5h 57m

$133

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Wed 9/30

2:29 pm-11:38 am

1 stop20h 09m

Cincinnati Cinci./N. Kentucky

Wed 10/7

12:43 pm-11:13 pm

2 stops35h 30m

$141

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Tue 9/29

12:17 pm-11:38 am

2 stops22h 21m

Cincinnati Cinci./N. Kentucky

Tue 10/6

12:43 pm-1:10 pm

1 stop25h 27m

$142

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Wed 9/30

2:29 pm-11:51 pm

2 stops32h 22m

Cincinnati Cinci./N. Kentucky

Tue 10/6

12:43 pm-1:10 pm

1 stop25h 27m

$144

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Fri 10/16

6:35 pm-10:42 am

1 stop15h 07m

Cincinnati Cinci./N. Kentucky

Mon 10/19

12:43 pm-5:40 pm

1 stop5h 57m

$181

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Fri 10/16

6:35 pm-10:42 am

1 stop15h 07m

Cincinnati Cinci./N. Kentucky

Mon 10/19

12:43 pm-11:13 pm

2 stops11h 30m

$189

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Fri 10/16

6:35 pm-10:42 am

1 stop15h 07m

Cincinnati Cinci./N. Kentucky

Fri 10/23

12:43 pm-11:13 pm

2 stops11h 30m

$207

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Tue 9/29

1:40 pm-9:50 pm

1 stop7h 10m

Cincinnati Cinci./N. Kentucky

Tue 10/6

3:30 pm-11:15 pm

1 stop8h 45m

$279
Quickest round-trip

St. LouisCincinnati

STL Lambert-St Louis - CVG Cincinnati Cinci./N. Kentucky

STLCVG

Lambert-St Louis

Thu 10/1

6:00 am-11:11 am

1 stop4h 11m

Cincinnati Cinci./N. Kentucky

Thu 10/8

10:50 am-3:43 pm

1 stop5h 53m

$279

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

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

Prices are currently low for flights on this route.

Typical prices usually range from $166 to $371.
The lowest price recently found on this route was $87.

What is the cheapest month to fly to Cincinnati?

The month of October is, on average, the cheapest month to fly to Cincinnati from St. Louis, with most prices found around $0. If you aren’t able to travel to Cincinnati during the month of October, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $0.

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

As of September 2026, prices for St. Louis to Cincinnati flights are approximately 28% more expensive 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

Best Price Found

$48

Fastest flight time

5h 23m

Direct flights

None
The best one-way flight to Cincinnati from St. Louis in the past 72 hours is $48. The best round-trip flight deal from St. Louis to Cincinnati found on momondo in the last 72 hours is $87.
The fastest flight from St. Louis to Cincinnati takes 5h 23m
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 5h 23m, 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
FrontierPriceFrom $156Free CancellationRating
5.6
2,624 reviews
Search Frontier flights

Traveling to a place near Cincinnati?

Book flights to Cincinnati if you plan to visit one of these locations
Florence
Mason
Sharonville
Newport
Covington
Middletown
West Chester
Fairfield
Blue Ash
Williamstown
Lawrenceburg
Oxford
Hebron
Monroe
Dry Ridge
Trenton
Corinth
Bethel
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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