What airlines fly to Cincinnati?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Cincinnati from St. Louis according to our data. American Airlines is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Cincinnati. Keep in mind that there are 4 different airlines that fly to Cincinnati on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lambert-St Louis to Cincinnati Cinci./N. Kentucky?

Frontier is the most popular carrier operating from Lambert-St Louis to Cincinnati Cinci./N. Kentucky

How many flights depart from St. Louis to Cincinnati on average per week?

4 flights are operational weekly from St. Louis to Cincinnati as of December 2025. The most popular departure day for this route is Mon, with 25% of flights per week taking off on this day.

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?

As of December 2025, there are 3 operators available to choose from 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.

$68 Cheap Flights from St. Louis to Cincinnati in 2025/26

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5:06 pm - 12:42 am

STL

CVG

6h 36m1 stop

9:30 pm - 6:51 am

CVG

STL

10h 21m1 stop

$163Frontier

Mon, Jan 12 - Thu, Jan 15

7:43 pm - 1:15 pm

STL

CVG

16h 32m1 stop

2:57 pm - 10:33 pm

CVG

STL

8h 36m1 stop

$171Frontier

Wed, Mar 4 - Sat, Mar 7

5:11 pm - 4:55 pm

STL

CVG

22h 44m1 stop

11:54 am - 10:34 pm

CVG

STL

11h 40m1 stop

$172Frontier

Tue, Jan 6 - Tue, Jan 13

5:11 pm - 2:39 pm

STL

CVG

20h 28m1 stop

11:54 am - 6:51 am

CVG

STL

19h 57m2 stops

$174Frontier

Tue, Jan 6 - Tue, Jan 13

8:22 pm - 4:42 pm

STL

CVG

19h 20m1 stop

4:23 pm - 11:33 pm

CVG

STL

8h 10m1 stop

$188Frontier

Sat, Jan 24 - Sat, Jan 31

7:43 pm - 5:48 pm

STL

CVG

21h 05m2 stops

9:30 pm - 6:51 am

CVG

STL

10h 21m1 stop

$191Frontier

Mon, Jan 12 - Thu, Jan 15

7:43 pm - 1:13 pm

STL

CVG

16h 30m1 stop

7:16 pm - 10:02 am

CVG

STL

15h 46m1 stop

$199Frontier

Wed, Dec 24 - Thu, Jan 1

3:46 pm - 4:42 pm

STL

CVG

23h 56m2 stops

4:23 pm - 11:33 pm

CVG

STL

8h 10m1 stop

$218Frontier

Sat, Jan 24 - Sat, Jan 31

5:55 pm - 10:57 pm

STL

CVG

4h 02m1 stop

6:00 am - 9:24 am

CVG

STL

4h 24m1 stop

$229Delta

Wed, Dec 24 - Thu, Jan 1

7:43 pm - 9:43 am

STL

CVG

13h 00m2 stops

12:06 pm - 8:47 am

CVG

STL

21h 41m1 stop

$233Frontier

Wed, Mar 4 - Sat, Mar 7

Frontier flights from St. Louis to Cincinnati

Our best Frontier deals on St. Louis to Cincinnati flight tickets

Frontier

Jan 12

STL5:06 pmLambert-St Louis

6h 36m

1 stop

CVG12:42 amCincinnati Cinci./N. Kentucky

Jan 15

CVG9:30 pmCincinnati Cinci./N. Kentucky

10h 21m

1 stop

STL6:51 amLambert-St Louis

$163

Find similar

Frontier

Mar 4

STL7:43 pmLambert-St Louis

16h 32m

1 stop

CVG1:15 pmCincinnati Cinci./N. Kentucky

Mar 7

CVG2:57 pmCincinnati Cinci./N. Kentucky

8h 36m

1 stop

STL10:33 pmLambert-St Louis

$171

Find similar

Frontier

Jan 6

STL5:11 pmLambert-St Louis

22h 44m

1 stop

CVG4:55 pmCincinnati Cinci./N. Kentucky

Jan 13

CVG11:54 amCincinnati Cinci./N. Kentucky

11h 40m

1 stop

STL10:34 pmLambert-St Louis

$172

Find similar

United Airlines flights from St. Louis to Cincinnati

Our best United Airlines deals on St. Louis to Cincinnati flight tickets

United Airlines

Dec 25

STL8:05 amLambert-St Louis

4h 12m

1 stop

CVG1:17 pmCincinnati Cinci./N. Kentucky

Dec 29

CVG9:00 amCincinnati Cinci./N. Kentucky

6h 26m

1 stop

STL2:26 pmLambert-St Louis

$394

Find similar

United Airlines

Jan 12

STL9:57 amLambert-St Louis

4h 33m

1 stop

CVG3:30 pmCincinnati Cinci./N. Kentucky

Jan 15

CVG11:15 amCincinnati Cinci./N. Kentucky

4h 15m

1 stop

STL2:30 pmLambert-St Louis

$414

Find similar

United Airlines

Feb 17

STL9:55 amLambert-St Louis

4h 33m

1 stop

CVG3:28 pmCincinnati Cinci./N. Kentucky

Feb 19

CVG7:00 amCincinnati Cinci./N. Kentucky

4h 36m

1 stop

STL10:36 amLambert-St Louis

$439

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 1/12

5:06 pm-12:42 am

1 stop6h 36m

Cincinnati Cinci./N. Kentucky

Thu 1/15

9:30 pm-6:51 am

1 stop10h 21m

$163

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 3/4

7:43 pm-1:15 pm

1 stop16h 32m

Cincinnati Cinci./N. Kentucky

Sat 3/7

2:57 pm-10:33 pm

1 stop8h 36m

$171

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 1/6

5:11 pm-4:55 pm

1 stop22h 44m

Cincinnati Cinci./N. Kentucky

Tue 1/13

11:54 am-10:34 pm

1 stop11h 40m

$172

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 1/6

5:11 pm-2:39 pm

1 stop20h 28m

Cincinnati Cinci./N. Kentucky

Tue 1/13

11:54 am-6:51 am

2 stops19h 57m

$174

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 1/24

8:22 pm-4:42 pm

1 stop19h 20m

Cincinnati Cinci./N. Kentucky

Sat 1/31

4:23 pm-11:33 pm

1 stop8h 10m

$188

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 1/12

7:43 pm-5:48 pm

2 stops21h 05m

Cincinnati Cinci./N. Kentucky

Thu 1/15

9:30 pm-6:51 am

1 stop10h 21m

$191

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 12/24

7:43 pm-1:13 pm

1 stop16h 30m

Cincinnati Cinci./N. Kentucky

Thu 1/1

7:16 pm-10:02 am

1 stop15h 46m

$199

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 1/24

3:46 pm-4:42 pm

2 stops23h 56m

Cincinnati Cinci./N. Kentucky

Sat 1/31

4:23 pm-11:33 pm

1 stop8h 10m

$218

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 12/24

5:55 pm-10:57 pm

1 stop4h 02m

Cincinnati Cinci./N. Kentucky

Thu 1/1

6:00 am-9:24 am

1 stop4h 24m

$229

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 3/4

7:43 pm-9:43 am

2 stops13h 00m

Cincinnati Cinci./N. Kentucky

Sat 3/7

12:06 pm-8:47 am

1 stop21h 41m

$233

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 December 2025, prices for St. Louis to Cincinnati flights are approximately 5% 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

Fastest flight time	3h 32m
Direct flights	None

The fastest flight from St. Louis to Cincinnati takes 3h 32m

There are no direct flights from St. Louis to Cincinnati. There are no popular flight routes from St. Louis to Cincinnati.

Search flight deals

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 32m, 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?
As of December 2025, there are 3 operators available to choose from 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?
Based on momondo bookings for flights between St. Louis and Cincinnati, the leading airline is American Airlines, making up 61% of the total bookings. Other popular airlines include Delta with 24% and United Airlines with 16%.

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 Airlines	PriceFrom $196	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
United Airlines	PriceFrom $261	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights

Florence

Mason

Newport

Sharonville

Covington

Middletown

Williamstown

Lawrenceburg

Blue Ash

West Chester

Fairfield

Oxford

Dry Ridge

Monroe

Edgewood

Hebron

Bethel

Ghent

Trenton

Corinth

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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.

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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.

An easier way to manage your Cincinnati trip

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Cheap flights from St. Louis to Cincinnati from $68

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 1/13. 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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Frontier flights from St. Louis to Cincinnati

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How to get the cheapest flight ticket from St. Louis to Cincinnati

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

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 December 2025, prices for St. Louis to Cincinnati flights are approximately 5% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Lambert-St Louis to Cincinnati Cinci./N. Kentucky?

Frontier is the most popular carrier operating from Lambert-St Louis to Cincinnati Cinci./N. Kentucky

What airlines fly to Cincinnati?

How many flights depart from St. Louis to Cincinnati on average per week?

4 flights are operational weekly from St. Louis to Cincinnati as of December 2025. The most popular departure day for this route is Mon, with 25% of flights per week taking off on this day.

When to book flights from St. Louis to Cincinnati

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

Direct flights

How far is Lambert-St Louis to Cincinnati Cinci./N. Kentucky by plane?

When did momondo last update prices for flights from Lambert-St Louis Airport to Cincinnati Cinci./N. Kentucky Airport?

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?

What documentation or ID do you need to fly to Cincinnati Cinci./N. Kentucky Airport?

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

Traveling to a place near Cincinnati?

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Cincinnati?

Can I find flights from St. Louis to Cincinnati with flexible booking policies on momondo?

How can momondo help me find flights from St. Louis to Cincinnati?

I’m not ready to book a flight from St. Louis to Cincinnati right now. Can momondo alert me if prices change?

An easier way to manage your Cincinnati trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Ohio