What airlines fly to Cincinnati?

American Airlines, Delta and Southwest 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 61% 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, American Airlines, 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 January 2026, there are 2 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.

$96 Cheap Flights from St. Louis to Cincinnati in 2026

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Cheap round-trip flights

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5:42 pm - 1:00 pm

STL

CVG

18h 18m

1 stop

9:00 am - 11:33 pm

CVG

STL

15h 33m

1 stop

$169Frontier

Wed, Feb 4 - Sat, Feb 7

3:46 pm - 11:24 am

STL

CVG

18h 38m

2 stops

4:23 pm - 8:04 am

CVG

STL

16h 41m

1 stop

$195Frontier

Wed, Feb 4 - Sat, Feb 7

5:42 pm - 4:29 pm

STL

CVG

21h 47m

1 stop

1:45 pm - 12:50 pm

CVG

STL

24h 05m

1 stop

$204Frontier

Thu, Feb 5 - Sun, Feb 8

5:42 pm - 3:03 pm

STL

CVG

20h 21m

1 stop

12:00 pm - 6:51 am

CVG

STL

19h 51m

1 stop

$213Frontier

Fri, Feb 6 - Sun, Feb 8

8:22 pm - 12:04 pm

STL

CVG

14h 42m

2 stops

12:00 pm - 6:51 am

CVG

STL

19h 51m

1 stop

$214Frontier

Fri, Feb 6 - Sun, Feb 8

5:42 pm - 11:55 am

STL

CVG

17h 13m

2 stops

12:00 pm - 6:51 am

CVG

STL

19h 51m

1 stop

$249Frontier

Thu, Feb 5 - Sun, Feb 8

6:00 am - 12:19 pm

STL

CVG

5h 19m

1 stop

5:05 am - 8:41 am

CVG

STL

4h 36m

1 stop

$279American Airlines

Thu, Feb 19 - Thu, Feb 26

6:00 am - 1:13 pm

STL

CVG

6h 13m

1 stop

7:50 pm - 11:58 pm

CVG

STL

5h 08m

1 stop

$303Delta

Sat, Mar 7 - Fri, Mar 13

5:01 pm - 11:55 pm

STL

CVG

5h 54m

1 stop

7:50 pm - 11:58 pm

CVG

STL

5h 08m

1 stop

$308Delta

Sat, Mar 7 - Fri, Mar 13

9:55 am - 3:28 pm

STL

CVG

4h 33m

1 stop

11:17 am - 4:02 pm

CVG

STL

5h 45m

1 stop

$315United Airlines

Wed, Feb 18 - Sat, Feb 21

Frontier flights from St. Louis to Cincinnati

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

Frontier

Feb 4

STL5:42 pmLambert-St Louis

18h 18m

1 stop

CVG1:00 pmCincinnati Cinci./N. Kentucky

Feb 7

CVG9:00 amCincinnati Cinci./N. Kentucky

15h 33m

1 stop

STL11:33 pmLambert-St Louis

$169

Frontier

Jan 29

STL5:42 pmLambert-St Louis

18h 18m

1 stop

CVG1:00 pmCincinnati Cinci./N. Kentucky

Feb 1

CVG12:00 pmCincinnati Cinci./N. Kentucky

19h 51m

1 stop

STL6:51 amLambert-St Louis

$191

Frontier

Feb 4

STL3:46 pmLambert-St Louis

18h 38m

2 stops

CVG11:24 amCincinnati Cinci./N. Kentucky

Feb 7

CVG4:23 pmCincinnati Cinci./N. Kentucky

16h 41m

1 stop

STL8:04 amLambert-St Louis

$195

Southwest flights from St. Louis to Cincinnati

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

Southwest

Apr 24

STL2:10 pmLambert-St Louis

8h 15m

2 stops

CVG11:25 pmCincinnati Cinci./N. Kentucky

Apr 26

CVG8:30 pmCincinnati Cinci./N. Kentucky

3h 30m

1 stop

STL11:00 pmLambert-St Louis

$362

Southwest

Apr 24

STL2:10 pmLambert-St Louis

8h 15m

2 stops

CVG11:25 pmCincinnati Cinci./N. Kentucky

Apr 26

CVG4:00 pmCincinnati Cinci./N. Kentucky

6h 10m

2 stops

STL9:10 pmLambert-St Louis

$388

Southwest

Feb 4

STL2:15 pmLambert-St Louis

7h 10m

2 stops

CVG10:25 pmCincinnati Cinci./N. Kentucky

Feb 7

CVG2:40 pmCincinnati Cinci./N. Kentucky

7h 15m

2 stops

STL8:55 pmLambert-St Louis

$450

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 2/4

5:42 pm-1:00 pm

1 stop18h 18m

Cincinnati Cinci./N. Kentucky

Sat 2/7

9:00 am-11:33 pm

1 stop15h 33m

$169

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 2/4

3:46 pm-11:24 am

2 stops18h 38m

Cincinnati Cinci./N. Kentucky

Sat 2/7

4:23 pm-8:04 am

1 stop16h 41m

$195

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 2/5

5:42 pm-4:29 pm

1 stop21h 47m

Cincinnati Cinci./N. Kentucky

Sun 2/8

1:45 pm-12:50 pm

1 stop24h 05m

$204

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 2/6

5:42 pm-3:03 pm

1 stop20h 21m

Cincinnati Cinci./N. Kentucky

Sun 2/8

12:00 pm-6:51 am

1 stop19h 51m

$213

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 2/6

8:22 pm-12:04 pm

2 stops14h 42m

Cincinnati Cinci./N. Kentucky

Sun 2/8

12:00 pm-6:51 am

1 stop19h 51m

$214

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 2/5

5:42 pm-11:55 am

2 stops17h 13m

Cincinnati Cinci./N. Kentucky

Sun 2/8

12:00 pm-6:51 am

1 stop19h 51m

$249

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 2/19

6:00 am-12:19 pm

1 stop5h 19m

Cincinnati Cinci./N. Kentucky

Thu 2/26

5:05 am-8:41 am

1 stop4h 36m

$279

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

6:00 am-1:13 pm

1 stop6h 13m

Cincinnati Cinci./N. Kentucky

Fri 3/13

7:50 pm-11:58 pm

1 stop5h 08m

$303

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 3/7

5:01 pm-11:55 pm

1 stop5h 54m

Cincinnati Cinci./N. Kentucky

Fri 3/13

7:50 pm-11:58 pm

1 stop5h 08m

$308

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 2/18

9:55 am-3:28 pm

1 stop4h 33m

Cincinnati Cinci./N. Kentucky

Sat 2/21

11:17 am-4:02 pm

1 stop5h 45m

$315

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

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

As of January 2026, prices for St. Louis to Cincinnati flights are approximately 8% cheaper 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 53m
Direct flights	None

The fastest flight from St. Louis to Cincinnati takes 3h 53m

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 53m, 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 January 2026, there are 2 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 68% of the total bookings. Other popular airlines include Delta with 32%.

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 11,192 reviews		Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,110 reviews		Search Delta flights

Florence

Mason

Newport

Sharonville

Covington

Middletown

Williamstown

Lawrenceburg

Blue Ash

West Chester

Fairfield

Oxford

Dry Ridge

Monroe

Hebron

Edgewood

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 $96

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 1/31. 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

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

As of January 2026, prices for St. Louis to Cincinnati flights are approximately 8% cheaper 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, American Airlines, 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

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