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 59% 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, Southwest, and United Airlines 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 October 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.

$72 Cheap Flights from St. Louis to Cincinnati in 2025/26

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Cheap round-trip flights

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4:52 pm - 4:33 pmSTL-CVG

22h 41m1 stop

3:22 pm - 9:07 amCVG-STL

18h 45m1 stop

$171Frontier

Find Deal

Fri, Oct 31 - Mon, Nov 3

11:11 am - 5:10 pmSTL-CVG

4h 59m1 stop

8:00 am - 6:02 pmCVG-STL

11h 02m1 stop

$198Frontier

Find Deal

Fri, Oct 24 - Sat, Oct 25

8:40 pm - 1:39 amSTL-CVG

27h 59m1 stop

1:27 pm - 9:07 amCVG-STL

20h 40m1 stop

$207Frontier

Find Deal

Wed, Oct 29 - Fri, Oct 31

1:20 pm - 10:34 pmSTL-CVG

8h 14m1 stop

6:00 am - 10:14 amCVG-STL

5h 14m1 stop

$257American Airlines

Find Deal

Sat, Nov 15 - Sat, Nov 22

2:15 pm - 10:25 pmSTL-CVG

7h 10m2 stops

1:35 pm - 6:45 pmCVG-STL

6h 10m1 stop

$262Southwest

Find Deal

Tue, Jan 6 - Wed, Jan 7

2:15 pm - 10:25 pmSTL-CVG

7h 10m2 stops

1:35 pm - 8:35 pmCVG-STL

8h 00m2 stops

$267Southwest

Find Deal

Tue, Jan 6 - Wed, Jan 7

11:21 am - 4:59 pmSTL-CVG

4h 38m1 stop

7:10 am - 12:35 pmCVG-STL

6h 25m1 stop

$316Delta

Find Deal

Tue, Oct 28 - Fri, Oct 31

8:00 am - 1:11 pmSTL-CVG

4h 11m1 stop

9:00 am - 2:24 pmCVG-STL

6h 24m1 stop

$376United Airlines

Find Deal

Fri, Oct 31 - Tue, Nov 4

5:00 am - 1:11 pmSTL-CVG

7h 11m1 stop

8:33 pm - 11:56 pmCVG-STL

4h 23m1 stop

$437American Airlines

Find Deal

Tue, Nov 25 - Sun, Nov 30

8:00 am - 1:07 pmSTL-CVG

4h 07m1 stop

11:20 am - 3:44 pmCVG-STL

5h 24m1 stop

$441United Airlines

Find Deal

Wed, Oct 22 - Fri, Oct 24

Frontier flights from St. Louis to Cincinnati

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

Frontier

Oct 31

STL4:52 pmLambert-St Louis

22h 41m

1 stop

CVG4:33 pmCincinnati Cinci./N. Kentucky

Nov 3

CVG3:22 pmCincinnati Cinci./N. Kentucky

18h 45m

1 stop

STL9:07 amLambert-St Louis

$171

Find similar

Frontier

Oct 24

STL11:11 amLambert-St Louis

4h 59m

1 stop

CVG5:10 pmCincinnati Cinci./N. Kentucky

Oct 25

CVG8:00 amCincinnati Cinci./N. Kentucky

11h 02m

1 stop

STL6:02 pmLambert-St Louis

$198

Find similar

Frontier

Oct 29

STL8:40 pmLambert-St Louis

27h 59m

1 stop

CVG1:39 amCincinnati Cinci./N. Kentucky

Oct 31

CVG1:27 pmCincinnati Cinci./N. Kentucky

20h 40m

1 stop

STL9:07 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 6

STL2:15 pmLambert-St Louis

7h 10m

2 stops

CVG10:25 pmCincinnati Cinci./N. Kentucky

Jan 7

CVG1:35 pmCincinnati Cinci./N. Kentucky

6h 10m

1 stop

STL6:45 pmLambert-St Louis

$262

Find similar

Southwest

Jan 6

STL2:15 pmLambert-St Louis

7h 10m

2 stops

CVG10:25 pmCincinnati Cinci./N. Kentucky

Jan 7

CVG1:35 pmCincinnati Cinci./N. Kentucky

8h 00m

2 stops

STL8:35 pmLambert-St Louis

$267

Find similar

Southwest

Nov 21

STL5:45 pmLambert-St Louis

3h 00m

1 stop

CVG9:45 pmCincinnati Cinci./N. Kentucky

Nov 24

CVG6:35 amCincinnati Cinci./N. Kentucky

4h 50m

1 stop

STL10:25 amLambert-St Louis

$300

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 10/31

4:52 pm-4:33 pm

1 stop22h 41m

Cincinnati Cinci./N. Kentucky

Mon 11/3

3:22 pm-9:07 am

1 stop18h 45m

$171

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 10/24

11:11 am-5:10 pm

1 stop4h 59m

Cincinnati Cinci./N. Kentucky

Sat 10/25

8:00 am-6:02 pm

1 stop11h 02m

$198

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 10/29

8:40 pm-1:39 am

1 stop27h 59m

Cincinnati Cinci./N. Kentucky

Fri 10/31

1:27 pm-9:07 am

1 stop20h 40m

$207

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 11/15

1:20 pm-10:34 pm

1 stop8h 14m

Cincinnati Cinci./N. Kentucky

Sat 11/22

6:00 am-10:14 am

1 stop5h 14m

$257

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 1/6

2:15 pm-10:25 pm

2 stops7h 10m

Cincinnati Cinci./N. Kentucky

Wed 1/7

1:35 pm-6:45 pm

1 stop6h 10m

$262

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 1/6

2:15 pm-10:25 pm

2 stops7h 10m

Cincinnati Cinci./N. Kentucky

Wed 1/7

1:35 pm-8:35 pm

2 stops8h 00m

$267

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 10/28

11:21 am-4:59 pm

1 stop4h 38m

Cincinnati Cinci./N. Kentucky

Fri 10/31

7:10 am-12:35 pm

1 stop6h 25m

$316

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 10/31

8:00 am-1:11 pm

1 stop4h 11m

Cincinnati Cinci./N. Kentucky

Tue 11/4

9:00 am-2:24 pm

1 stop6h 24m

$376

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 11/25

5:00 am-1:11 pm

1 stop7h 11m

Cincinnati Cinci./N. Kentucky

Sun 11/30

8:33 pm-11:56 pm

1 stop4h 23m

$437

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 10/22

8:00 am-1:07 pm

1 stop4h 07m

Cincinnati Cinci./N. Kentucky

Fri 10/24

11:20 am-3:44 pm

1 stop5h 24m

$441

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

What is the cheapest month to fly to Cincinnati?

The month of August is, on average, the cheapest month to fly to Cincinnati from St. Louis, with most prices found around $236. If you aren’t able to travel to Cincinnati during the month of August, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $306.

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 October 2025, 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

Direct flights	None

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 00m, 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 October 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 20% and United Airlines with 18%.

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 11,043 reviews	Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 7,984 reviews	Search Delta flights
United Airlines	PriceFrom $261	Free Cancellation	Rating 7.4 8,982 reviews	Search United Airlines flights

Florence

Mason

Newport

Sharonville

Covington

Middletown

Williamstown

Lawrenceburg

Blue Ash

West Chester

Fairfield

Oxford

Dry Ridge

Monroe

Edgewood

Hebron

Corinth

Bethel

Ghent

Sparta

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 $72

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 11/12. 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 month to fly 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 October 2025, prices for St. Louis to Cincinnati flights are approximately 28% 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, Southwest, and United Airlines are the most popular carriers operating from Lambert-St Louis to Cincinnati Cinci./N. Kentucky

What airlines fly to Cincinnati?

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

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