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Cheap flights from St. Louis to Cincinnati from $68

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
6:35 pm - 11:43 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 08m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:36 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
6h 04m1 stop Atlanta Hartsfield-Jackson
$93Frontier
Mon, Oct 26 - Wed, Oct 28
Frontier Logo
6:35 pm - 11:43 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 08m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:18 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 22m1 stop Atlanta Hartsfield-Jackson
$110Frontier
Mon, Oct 26 - Thu, Oct 29
Frontier Logo
6:35 pm - 11:43 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 08m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:18 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 22m1 stop Atlanta Hartsfield-Jackson
$111Frontier
Mon, Oct 26 - Thu, Oct 29
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 - Mon, Oct 19
Frontier Logo
6:35 pm - 9:24 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
13h 49m1 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
$142Frontier
Fri, Oct 9 - Mon, Oct 12
Frontier Logo
6:44 pm - 11:43 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
15h 59m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:18 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 22m1 stop Atlanta Hartsfield-Jackson
$172Frontier
Mon, Nov 2 - Thu, Nov 5
Frontier Logo
6:35 pm - 11:43 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 08m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
8:00 am - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
10h 40m2 stops Orlando Atlanta Hartsfield-Jackson
$191Frontier
Mon, Oct 26 - Wed, Oct 28
Frontier Logo
6:35 pm - 11:43 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 08m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
7:59 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
22h 41m2 stops Orlando Atlanta Hartsfield-Jackson
$200Frontier
Mon, Oct 26 - Thu, Oct 29
American Airlines Logo
5:23 pm - 11:13 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
4h 50m1 stop Chicago O'Hare Intl
American Airlines Logo
9:04 pm - 12:19 amCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
4h 15m1 stop Chicago O'Hare Intl
$248American Airlines
Sat, Oct 10 - Mon, Oct 12
Delta Logo
6:05 pm - 11:02 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
3h 57m1 stop Detroit Metropolitan Wayne County
Delta Logo
8:00 am - 1:30 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
6h 30m1 stop Detroit Metropolitan Wayne County
$255Delta
Mon, Dec 14 - Tue, Dec 15

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Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Oct 26
STL6:35 pmLambert-St Louis
16h 08m
1 stop
CVG11:43 amCincinnati Cinci./N. Kentucky
Oct 28
CVG12:36 pmCincinnati Cinci./N. Kentucky
6h 04m
1 stop
STL5:40 pmLambert-St Louis
$93
Frontier
Oct 26
STL6:35 pmLambert-St Louis
16h 08m
1 stop
CVG11:43 amCincinnati Cinci./N. Kentucky
Oct 29
CVG5:18 pmCincinnati Cinci./N. Kentucky
25h 22m
1 stop
STL5:40 pmLambert-St Louis
$110
Frontier
Oct 26
STL6:35 pmLambert-St Louis
16h 08m
1 stop
CVG11:43 amCincinnati Cinci./N. Kentucky
Oct 29
CVG5:18 pmCincinnati Cinci./N. Kentucky
25h 22m
1 stop
STL5:40 pmLambert-St Louis
$111

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Dec 14
STL10:55 amLambert-St Louis
9h 25m
2 stops
CVG9:20 pmCincinnati Cinci./N. Kentucky
Dec 15
CVG6:55 amCincinnati Cinci./N. Kentucky
7h 55m
2 stops
STL1:50 pmLambert-St Louis
$271
Southwest
Nov 2
STL1:05 pmLambert-St Louis
8h 20m
2 stops
CVG10:25 pmCincinnati Cinci./N. Kentucky
Nov 5
CVG6:50 amCincinnati Cinci./N. Kentucky
8h 15m
2 stops
STL2:05 pmLambert-St Louis
$276
Southwest
Oct 26
STL3:20 pmLambert-St Louis
6h 20m
2 stops
CVG10:40 pmCincinnati Cinci./N. Kentucky
Oct 29
CVG7:20 pmCincinnati Cinci./N. Kentucky
6h 20m
2 stops
STL12:40 amLambert-St Louis
$300

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Cincinnati that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 10/26

6:35 pm-11:43 am

1 stop16h 08m

Cincinnati Cinci./N. Kentucky

Wed 10/28

12:36 pm-5:40 pm

1 stop6h 04m

$93

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 10/26

6:35 pm-11:43 am

1 stop16h 08m

Cincinnati Cinci./N. Kentucky

Thu 10/29

5:18 pm-5:40 pm

1 stop25h 22m

$110

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 10/26

6:35 pm-11:43 am

1 stop16h 08m

Cincinnati Cinci./N. Kentucky

Thu 10/29

5:18 pm-5:40 pm

1 stop25h 22m

$111

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

$133

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Fri 10/9

6:35 pm-9:24 am

1 stop13h 49m

Cincinnati Cinci./N. Kentucky

Mon 10/12

12:43 pm-5:40 pm

1 stop5h 57m

$142

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 11/2

6:44 pm-11:43 am

1 stop15h 59m

Cincinnati Cinci./N. Kentucky

Thu 11/5

5:18 pm-5:40 pm

1 stop25h 22m

$172

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 10/26

6:35 pm-11:43 am

1 stop16h 08m

Cincinnati Cinci./N. Kentucky

Wed 10/28

8:00 am-5:40 pm

2 stops10h 40m

$191

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 10/26

6:35 pm-11:43 am

1 stop16h 08m

Cincinnati Cinci./N. Kentucky

Thu 10/29

7:59 pm-5:40 pm

2 stops22h 41m

$200
Quickest round-trip

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Sat 10/10

5:23 pm-11:13 pm

1 stop4h 50m

Cincinnati Cinci./N. Kentucky

Mon 10/12

9:04 pm-12:19 am

1 stop4h 15m

$248

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 12/14

6:05 pm-11:02 pm

1 stop3h 57m

Cincinnati Cinci./N. Kentucky

Tue 12/15

8:00 am-1:30 pm

1 stop6h 30m

$255

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 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

$68

Fastest flight time

5h 23m

Direct flights

None
The best one-way flight to Cincinnati from St. Louis in the past 72 hours is $68. The best round-trip flight deal from St. Louis to Cincinnati found on momondo in the last 72 hours is $93.
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
2,600 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
Lawrenceburg
Williamstown
Oxford
Hebron
Monroe
Dry Ridge
Trenton
Corinth
Bethel
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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