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 58% 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.

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

5 flights are operational weekly from St. Louis to Cincinnati as of December 2025. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.

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

Delta and Frontier are the most popular carriers operating from Lambert-St Louis to Cincinnati Cinci./N. Kentucky

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.

$98 Cheap Flights from St. Louis to Cincinnati in 2025/26

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4:27 pm - 1:06 am

STL

CVG

7h 39m1 stop

5:05 am - 10:33 pm

CVG

STL

18h 28m1 stop

$173Frontier

Wed, Dec 24 - Wed, Dec 31

6:00 am - 1:20 pm

STL

CVG

6h 20m1 stop

5:50 pm - 8:43 pm

CVG

STL

3h 53m1 stop

$195Delta

Thu, Jan 8 - Mon, Jan 12

3:30 pm - 5:44 pm

STL

CVG

25h 14m1 stop

5:05 am - 10:33 pm

CVG

STL

18h 28m1 stop

$196Frontier

Tue, Dec 16 - Thu, Dec 18

10:42 am - 7:18 pm

STL

CVG

7h 36m1 stop

9:05 pm - 7:50 am

CVG

STL

11h 45m1 stop

$207Frontier

Thu, Jan 1 - Thu, Jan 8

10:42 am - 7:18 pm

STL

CVG

7h 36m1 stop

5:05 am - 9:45 am

CVG

STL

5h 40m1 stop

$208Frontier

Thu, Dec 18 - Mon, Dec 22

10:42 am - 4:17 pm

STL

CVG

4h 35m1 stop

2:57 pm - 10:33 pm

CVG

STL

8h 36m1 stop

$213Frontier

Tue, Mar 10 - Thu, Mar 12

1:35 pm - 8:10 pm

STL

CVG

5h 35m1 stop

7:50 pm - 11:42 pm

CVG

STL

4h 52m1 stop

$216Delta

Tue, Mar 10 - Thu, Mar 12

7:43 pm - 1:13 pm

STL

CVG

16h 30m1 stop

7:16 pm - 10:02 am

CVG

STL

15h 46m1 stop

$222Frontier

Wed, Dec 17 - Thu, Dec 18

10:42 am - 7:18 pm

STL

CVG

7h 36m1 stop

5:05 am - 9:45 am

CVG

STL

5h 40m1 stop

$238Frontier

Thu, Dec 18 - Mon, Dec 22

3:30 pm - 5:44 pm

STL

CVG

25h 14m1 stop

5:05 am - 10:33 pm

CVG

STL

18h 28m1 stop

$241Frontier

Wed, Dec 17 - Sun, Dec 21

Frontier flights from St. Louis to Cincinnati

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

Frontier

Dec 24

STL4:27 pmLambert-St Louis

7h 39m

1 stop

CVG1:06 amCincinnati Cinci./N. Kentucky

Dec 31

CVG5:05 amCincinnati Cinci./N. Kentucky

18h 28m

1 stop

STL10:33 pmLambert-St Louis

$173

Find similar

Frontier

Dec 16

STL3:30 pmLambert-St Louis

25h 14m

1 stop

CVG5:44 pmCincinnati Cinci./N. Kentucky

Dec 18

CVG5:05 amCincinnati Cinci./N. Kentucky

18h 28m

1 stop

STL10:33 pmLambert-St Louis

$196

Find similar

Frontier

Jan 1

STL10:42 amLambert-St Louis

7h 36m

1 stop

CVG7:18 pmCincinnati Cinci./N. Kentucky

Jan 8

CVG9:05 pmCincinnati Cinci./N. Kentucky

11h 45m

1 stop

STL7:50 amLambert-St Louis

$207

Find similar

Southwest flights from St. Louis to Cincinnati

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

Southwest

Jan 3

STL7:15 pmLambert-St Louis

3h 10m

1 stop

CVG11:25 pmCincinnati Cinci./N. Kentucky

Jan 10

CVG5:40 amCincinnati Cinci./N. Kentucky

12h 10m

2 stops

STL4:50 pmLambert-St Louis

$316

Find similar

Southwest

Jan 1

STL8:10 amLambert-St Louis

9h 05m

2 stops

CVG6:15 pmCincinnati Cinci./N. Kentucky

Jan 8

CVG7:00 amCincinnati Cinci./N. Kentucky

7h 35m

2 stops

STL1:35 pmLambert-St Louis

$337

Find similar

Southwest

Jan 3

STL1:05 pmLambert-St Louis

9h 20m

2 stops

CVG11:25 pmCincinnati Cinci./N. Kentucky

Jan 10

CVG5:40 amCincinnati Cinci./N. Kentucky

12h 10m

2 stops

STL4:50 pmLambert-St Louis

$351

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 12/24

4:27 pm-1:06 am

1 stop7h 39m

Cincinnati Cinci./N. Kentucky

Wed 12/31

5:05 am-10:33 pm

1 stop18h 28m

$173

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/8

6:00 am-1:20 pm

1 stop6h 20m

Cincinnati Cinci./N. Kentucky

Mon 1/12

5:50 pm-8:43 pm

1 stop3h 53m

$195

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 12/16

3:30 pm-5:44 pm

1 stop25h 14m

Cincinnati Cinci./N. Kentucky

Thu 12/18

5:05 am-10:33 pm

1 stop18h 28m

$196

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/1

10:42 am-7:18 pm

1 stop7h 36m

Cincinnati Cinci./N. Kentucky

Thu 1/8

9:05 pm-7:50 am

1 stop11h 45m

$207

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 12/18

10:42 am-7:18 pm

1 stop7h 36m

Cincinnati Cinci./N. Kentucky

Mon 12/22

5:05 am-9:45 am

1 stop5h 40m

$208

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 3/10

10:42 am-4:17 pm

1 stop4h 35m

Cincinnati Cinci./N. Kentucky

Thu 3/12

2:57 pm-10:33 pm

1 stop8h 36m

$213

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 3/10

1:35 pm-8:10 pm

1 stop5h 35m

Cincinnati Cinci./N. Kentucky

Thu 3/12

7:50 pm-11:42 pm

1 stop4h 52m

$216

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 12/17

7:43 pm-1:13 pm

1 stop16h 30m

Cincinnati Cinci./N. Kentucky

Thu 12/18

7:16 pm-10:02 am

1 stop15h 46m

$222

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 12/18

10:42 am-7:18 pm

1 stop7h 36m

Cincinnati Cinci./N. Kentucky

Mon 12/22

5:05 am-9:45 am

1 stop5h 40m

$238

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 12/17

3:30 pm-5:44 pm

1 stop25h 14m

Cincinnati Cinci./N. Kentucky

Sun 12/21

5:05 am-10:33 pm

1 stop18h 28m

$241

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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 30% 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	4h 04m
Direct flights	None

The fastest flight from St. Louis to Cincinnati takes 4h 04m

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 10m, 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 62% of the total bookings. Other popular airlines include Delta with 22% and United Airlines with 17%.

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 11,045 reviews	Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
United Airlines	PriceFrom $261	Free Cancellation	Rating 7.4 9,063 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

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.

An easier way to manage your Cincinnati trip

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Cheap flights from St. Louis to Cincinnati from $98

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 1/17. 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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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 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 30% 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?

Delta and Frontier are the most popular carriers 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?

5 flights are operational weekly from St. Louis to Cincinnati as of December 2025. The most popular departure day for this route is Mon, with 20% 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