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Cheap flights from St. Louis to Cincinnati from $64

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
$106Frontier
Mon, Sep 14 - Thu, Sep 17
Frontier Logo
6:17 pm - 11:21 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 04m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:26 pm - 5:22 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 56m1 stop Atlanta Hartsfield-Jackson
$136Frontier
Fri, Sep 4 - Sun, Sep 6
Frontier Logo
6:17 pm - 11:21 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
16h 04m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
12:26 pm - 5:22 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
5h 56m1 stop Atlanta Hartsfield-Jackson
$137Frontier
Fri, Sep 4 - Sun, Sep 6
Frontier Logo
6:35 pm - 7:50 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
12h 15m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:11 pm - 5:40 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
25h 29m1 stop Atlanta Hartsfield-Jackson
$154Frontier
Wed, Oct 21 - Sun, Oct 25
Frontier Logo
10:20 am - 11:38 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
24h 18m2 stops Dallas/Fort Worth 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
$164Frontier
Thu, Sep 10 - Thu, Sep 17
Frontier Logo
6:35 pm - 7:50 amSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
12h 15m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:11 pm - 11:13 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
31h 02m2 stops Atlanta Hartsfield-Jackson Orlando
$165Frontier
Wed, Oct 21 - Sun, Oct 25
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 - 11:32 amCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
23h 49m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$173Frontier
Fri, Sep 11 - Fri, Sep 18
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 - 11:27 amCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
23h 44m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$179Frontier
Mon, Sep 14 - Thu, Sep 17
American Airlines Logo
7:29 am - 7:21 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
10h 52m1 stop Chicago O'Hare Intl
American Airlines Logo
2:37 pm - 11:58 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
10h 21m1 stop Chicago O'Hare Intl
$263American Airlines
Thu, Feb 4 - Sat, Feb 6
American Airlines Logo
11:32 am - 11:10 pmSTL  Lambert-St Louis-CVG Cincinnati Cinci./N. Kentucky
10h 38m1 stop Chicago O'Hare Intl
American Airlines Logo
5:34 am - 12:50 pmCVG  Cincinnati Cinci./N. Kentucky-STL Lambert-St Louis
8h 16m1 stop Chicago O'Hare Intl
$263American Airlines
Tue, Nov 10 - Thu, Nov 12

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Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Sep 14
STL2:29 pmLambert-St Louis
20h 09m
1 stop
CVG11:38 amCincinnati Cinci./N. Kentucky
Sep 17
CVG12:43 pmCincinnati Cinci./N. Kentucky
25h 27m
1 stop
STL1:10 pmLambert-St Louis
$106
Frontier
Sep 4
STL6:17 pmLambert-St Louis
16h 04m
1 stop
CVG11:21 amCincinnati Cinci./N. Kentucky
Sep 6
CVG12:26 pmCincinnati Cinci./N. Kentucky
5h 56m
1 stop
STL5:22 pmLambert-St Louis
$136
Frontier
Sep 4
STL6:17 pmLambert-St Louis
16h 04m
1 stop
CVG11:21 amCincinnati Cinci./N. Kentucky
Sep 6
CVG12:26 pmCincinnati Cinci./N. Kentucky
5h 56m
1 stop
STL5:22 pmLambert-St Louis
$137

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Sep 2
STL12:50 pmLambert-St Louis
7h 55m
2 stops
CVG9:45 pmCincinnati Cinci./N. Kentucky
Sep 9
CVG7:00 amCincinnati Cinci./N. Kentucky
9h 10m
2 stops
STL3:10 pmLambert-St Louis
$278
Southwest
Nov 10
STL10:30 amLambert-St Louis
8h 55m
2 stops
CVG8:25 pmCincinnati Cinci./N. Kentucky
Nov 12
CVG1:40 pmCincinnati Cinci./N. Kentucky
6h 20m
1 stop
STL7:00 pmLambert-St Louis
$284
Southwest
Nov 10
STL10:30 amLambert-St Louis
8h 55m
2 stops
CVG8:25 pmCincinnati Cinci./N. Kentucky
Nov 12
CVG6:50 amCincinnati Cinci./N. Kentucky
8h 15m
2 stops
STL2:05 pmLambert-St Louis
$289

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

Mon 9/14

2:29 pm-11:38 am

1 stop20h 09m

Cincinnati Cinci./N. Kentucky

Thu 9/17

12:43 pm-1:10 pm

1 stop25h 27m

$106

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Fri 9/4

6:17 pm-11:21 am

1 stop16h 04m

Cincinnati Cinci./N. Kentucky

Sun 9/6

12:26 pm-5:22 pm

1 stop5h 56m

$136

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Fri 9/4

6:17 pm-11:21 am

1 stop16h 04m

Cincinnati Cinci./N. Kentucky

Sun 9/6

12:26 pm-5:22 pm

1 stop5h 56m

$137

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Wed 10/21

6:35 pm-7:50 am

1 stop12h 15m

Cincinnati Cinci./N. Kentucky

Sun 10/25

5:11 pm-5:40 pm

1 stop25h 29m

$154

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Thu 9/10

10:20 am-11:38 am

2 stops24h 18m

Cincinnati Cinci./N. Kentucky

Thu 9/17

12:43 pm-1:10 pm

1 stop25h 27m

$164

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Wed 10/21

6:35 pm-7:50 am

1 stop12h 15m

Cincinnati Cinci./N. Kentucky

Sun 10/25

5:11 pm-11:13 pm

2 stops31h 02m

$165

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Fri 9/11

2:29 pm-11:38 am

1 stop20h 09m

Cincinnati Cinci./N. Kentucky

Fri 9/18

12:43 pm-11:32 am

2 stops23h 49m

$173

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Mon 9/14

2:29 pm-11:38 am

1 stop20h 09m

Cincinnati Cinci./N. Kentucky

Thu 9/17

12:43 pm-11:27 am

2 stops23h 44m

$179

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Thu 2/4

7:29 am-7:21 pm

1 stop10h 52m

Cincinnati Cinci./N. Kentucky

Sat 2/6

2:37 pm-11:58 pm

1 stop10h 21m

$263
Quickest round-trip

St. LouisCincinnati

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

STLCVG

Lambert-St Louis

Tue 11/10

11:32 am-11:10 pm

1 stop10h 38m

Cincinnati Cinci./N. Kentucky

Thu 11/12

5:34 am-12:50 pm

1 stop8h 16m

$263

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 $346 to $528.
The lowest price recently found on this route was $106.

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 August 2026, prices for St. Louis to Cincinnati flights are approximately 22% 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

$64

Fastest flight time

3h 36m

Direct flights

None
The best one-way flight to Cincinnati from St. Louis in the past 72 hours is $64. The best round-trip flight deal from St. Louis to Cincinnati found on momondo in the last 72 hours is $106.
The fastest flight from St. Louis to Cincinnati takes 3h 36m
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 3h 36m, 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
2,668 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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