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Cheap flights from St. Louis to Cincinnati from $79

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 5/15. 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

KAYAK's recommended round-trip deals from the most popular airlines that fly from St. Louis to Cincinnati.
Frontier Logo
4:57 pm - 8:21 amSTL-CVG
14h 24m1 stop
Frontier Logo
5:45 am - 12:04 amCVG-STL
19h 19m1 stop
$178Frontier
Find Deal
Sun, Apr 20 - Tue, Apr 22
Frontier Logo
4:57 pm - 10:55 amSTL-CVG
16h 58m1 stop
Frontier Logo
3:10 pm - 9:06 amCVG-STL
18h 56m1 stop
$189Frontier
Find Deal
Wed, Apr 16 - Sun, Apr 20
Frontier Logo
5:41 pm - 1:12 amSTL-CVG
6h 31m1 stop
Frontier Logo
5:45 am - 12:04 amCVG-STL
19h 19m1 stop
$196Frontier
Find Deal
Fri, Apr 25 - Sun, Apr 27
Frontier Logo
4:57 pm - 12:57 amSTL-CVG
7h 00m1 stop
Frontier Logo
1:37 pm - 11:46 pmCVG-STL
11h 09m1 stop
$198Frontier
Find Deal
Thu, Apr 17 - Mon, Apr 21
Southwest Logo
2:55 pm - 10:35 pmSTL-CVG
6h 40m1 stop
Southwest Logo
6:05 pm - 12:10 amCVG-STL
7h 05m1 stop
$278Southwest
Find Deal
Tue, Jun 3 - Sun, Jun 8
Southwest Logo
7:30 pm - 12:15 amSTL-CVG
3h 45m1 stop
Southwest Logo
6:35 pm - 12:05 amCVG-STL
6h 30m1 stop
$291Southwest
Find Deal
Sun, May 4 - Fri, May 9
American Airlines Logo
7:35 am - 4:30 pmSTL-CVG
7h 55m2 stops
American Airlines Logo
3:34 pm - 11:51 pmCVG-STL
9h 17m2 stops
$364American Airlines
Find Deal
Sun, May 4 - Fri, May 9
Delta Logo
6:00 am - 11:51 amSTL-CVG
4h 51m1 stop
Delta Logo
7:47 am - 11:45 amCVG-STL
4h 58m1 stop
$378Delta
Find Deal
Wed, Apr 16 - Thu, Apr 17
United Airlines Logo
9:39 am - 5:33 pmSTL-CVG
6h 54m1 stop
United Airlines Logo
11:26 am - 2:45 pmCVG-STL
4h 19m1 stop
$438United Airlines
Find Deal
Wed, Apr 16 - Sun, Apr 20
United Airlines Logo
8:00 am - 5:04 pmSTL-CVG
8h 04m2 stops
United Airlines Logo
7:30 am - 12:20 pmCVG-STL
5h 50m1 stop
$603United Airlines
Find Deal
Wed, Apr 16 - Sun, Apr 20

Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets
Frontier
Apr 20
STL4:57 pmLambert-St Louis
14h 24m
1 stop
CVG8:21 amCincinnati Cinci./N. Kentucky
Apr 22
CVG5:45 amCincinnati Cinci./N. Kentucky
19h 19m
1 stop
STL12:04 amLambert-St Louis
Frontier
Apr 16
STL4:57 pmLambert-St Louis
16h 58m
1 stop
CVG10:55 amCincinnati Cinci./N. Kentucky
Apr 20
CVG3:10 pmCincinnati Cinci./N. Kentucky
18h 56m
1 stop
STL9:06 amLambert-St Louis
Frontier
Apr 25
STL5:41 pmLambert-St Louis
6h 31m
1 stop
CVG1:12 amCincinnati Cinci./N. Kentucky
Apr 27
CVG5:45 amCincinnati Cinci./N. Kentucky
19h 19m
1 stop
STL12:04 amLambert-St Louis

Southwest flights from St. Louis to Cincinnati

Our best Southwest deals on St. Louis to Cincinnati flight tickets
Southwest
Jun 3
STL2:55 pmLambert-St Louis
6h 40m
1 stop
CVG10:35 pmCincinnati Cinci./N. Kentucky
Jun 8
CVG6:05 pmCincinnati Cinci./N. Kentucky
7h 05m
1 stop
STL12:10 amLambert-St Louis
Southwest
May 4
STL7:30 pmLambert-St Louis
3h 45m
1 stop
CVG12:15 amCincinnati Cinci./N. Kentucky
May 9
CVG6:35 pmCincinnati Cinci./N. Kentucky
6h 30m
1 stop
STL12:05 amLambert-St Louis
Southwest
Jun 3
STL8:05 amLambert-St Louis
4h 35m
1 stop
CVG1:40 pmCincinnati Cinci./N. Kentucky
Jun 8
CVG2:00 pmCincinnati Cinci./N. Kentucky
8h 25m
2 stops
STL9:25 pmLambert-St Louis

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 July is, on average, the cheapest month to fly to Cincinnati from St. Louis, with most prices found around $283. If you aren’t able to travel to Cincinnati during the month of July, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $288.

What is the cheapest day to depart on your flight to Cincinnati?

According to our data, Saturday is the cheapest day to fly to Cincinnati from St. Louis. The lowest ticket price found for a Saturday departure recently was $263. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Monday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $424.

What is the cheapest time of day to depart on your flight to Cincinnati?

Our most recent data shows that the best time of day to fly to Cincinnati is in the evening. Flights from St. Louis to Cincinnati during this time can be as low as $248. In the morning is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $346 per ticket.

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

As of April 2025, prices for St. Louis to Cincinnati flights are approximately 112% 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

$79

Fastest flight time

3h 45m

Direct flights

None

Airports in Cincinnati

1 airport
The best one-way flight to Cincinnati from St. Louis in the past 72 hours is $79. The best round-trip flight deal from St. Louis to Cincinnati found on momondo in the last 72 hours is $178.
The fastest flight from St. Louis to Cincinnati takes 3h 45m
There are no direct flights from St. Louis to Cincinnati. Popular non-direct route for this connection is Lambert-St Louis Airport - Cincinnati Cinci./N. Kentucky Airport.
There is 1 airport near Cincinnati: Cincinnati Cinci./N. Kentucky (CVG)

  • 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 45m, 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 $128Free CancellationRating
5.9
3,276 reviews
Search Frontier flights
DeltaPriceFrom $200Free CancellationRating
8.0
7,897 reviews
Search Delta flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $261Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,274 reviews
Search Southwest 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
Lawrenceburg
West Chester
Williamstown
Fairfield
Blue Ash
Dry Ridge
Oxford
Edgewood
Monroe
Trenton
Hebron
Corinth
Bethel
Ghent

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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