What airlines fly to Cincinnati?

American Airlines, Southwest 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 65% of people opting to fly with this airline when traveling to Cincinnati. Keep in mind that there are 5 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?

American Airlines, Southwest, 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 July 2025, there are 5 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.

$99 Cheap Flights from St. Louis to Cincinnati in 2025

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Find the cheapest flights from St. Louis to Cincinnati

Round-trip

One-way

Last minute

Cheap round-trip flights

6:40 am - 1:25 pmSTL-CVG

5h 45m1 stop

2:30 pm - 7:07 pmCVG-STL

5h 37m1 stop

$197Delta

Find Deal

Wed, Aug 13 - Sat, Aug 16

4:15 pm - 11:15 pmSTL-CVG

6h 00m1 stop

1:15 pm - 8:00 pmCVG-STL

7h 45m2 stops

$202Southwest

Find Deal

Mon, Aug 11 - Tue, Aug 12

1:35 pm - 10:25 pmSTL-CVG

7h 50m2 stops

5:55 am - 2:15 pmCVG-STL

9h 20m2 stops

$207Southwest

Find Deal

Wed, Aug 13 - Wed, Aug 20

10:47 am - 11:31 pmSTL-CVG

11h 44m2 stops

6:15 am - 4:31 pmCVG-STL

11h 16m1 stop

$244

Find Deal

Fri, Aug 8 - Sun, Aug 10

4:34 pm - 11:06 pmSTL-CVG

5h 32m1 stop

5:33 am - 9:54 amCVG-STL

5h 21m1 stop

$248American Airlines

Find Deal

Sat, Nov 1 - Sun, Nov 2

5:40 pm - 1:19 amSTL-CVG

6h 39m1 stop

5:10 am - 11:47 pmCVG-STL

19h 37m1 stop

$250Frontier

Find Deal

Fri, Aug 8 - Sun, Aug 10

5:30 pm - 11:57 pmSTL-CVG

5h 27m1 stop

9:00 am - 2:19 pmCVG-STL

6h 19m1 stop

$268United Airlines

Find Deal

Mon, Sep 8 - Thu, Sep 11

2:27 pm - 12:59 amSTL-CVG

9h 32m1 stop

6:08 pm - 9:11 amCVG-STL

16h 03m1 stop

$281Frontier

Find Deal

Sun, Aug 3 - Fri, Aug 8

9:20 am - 11:14 pmSTL-CVG

36h 54m3 stops

6:15 am - 4:31 pmCVG-STL

11h 16m1 stop

$310

Find Deal

Fri, Aug 8 - Sun, Aug 10

6:35 am - 6:57 pmSTL-CVG

11h 22m2 stops

7:00 am - 10:49 amCVG-STL

4h 49m1 stop

$382United Airlines

Find Deal

Tue, Sep 23 - Fri, Sep 26

Delta flights from St. Louis to Cincinnati

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

Delta

Aug 13

STL6:40 amLambert-St Louis

5h 45m

1 stop

CVG1:25 pmCincinnati Cinci./N. Kentucky

Aug 16

CVG2:30 pmCincinnati Cinci./N. Kentucky

5h 37m

1 stop

STL7:07 pmLambert-St Louis

$197

Find similar

Delta

Sep 23

STL7:10 amLambert-St Louis

4h 36m

1 stop

CVG12:46 pmCincinnati Cinci./N. Kentucky

Sep 26

CVG6:00 amCincinnati Cinci./N. Kentucky

4h 59m

1 stop

STL9:59 amLambert-St Louis

$208

Find similar

Delta

Aug 15

STL1:26 pmLambert-St Louis

5h 35m

1 stop

CVG8:01 pmCincinnati Cinci./N. Kentucky

Aug 22

CVG4:43 pmCincinnati Cinci./N. Kentucky

5h 44m

1 stop

STL9:27 pmLambert-St Louis

$219

Find similar

Southwest flights from St. Louis to Cincinnati

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

Southwest

Aug 11

STL4:15 pmLambert-St Louis

6h 00m

1 stop

CVG11:15 pmCincinnati Cinci./N. Kentucky

Aug 12

CVG1:15 pmCincinnati Cinci./N. Kentucky

7h 45m

2 stops

STL8:00 pmLambert-St Louis

$202

Find similar

Southwest

Aug 13

STL1:35 pmLambert-St Louis

7h 50m

2 stops

CVG10:25 pmCincinnati Cinci./N. Kentucky

Aug 20

CVG5:55 amCincinnati Cinci./N. Kentucky

9h 20m

2 stops

STL2:15 pmLambert-St Louis

$207

Find similar

Southwest

Aug 16

STL8:20 amLambert-St Louis

12h 45m

2 stops

CVG10:05 pmCincinnati Cinci./N. Kentucky

Aug 23

CVG1:50 pmCincinnati Cinci./N. Kentucky

8h 00m

2 stops

STL8:50 pmLambert-St Louis

$213

Find similar

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 September is, on average, the cheapest month to fly to Cincinnati from St. Louis, with most prices found around $291. If you aren’t able to travel to Cincinnati during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $299.

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 July 2025, prices for St. Louis to Cincinnati flights are approximately 45% 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

Best Price Found	$99
Fastest flight time	3h 52m
Direct flights	None
Airports in Cincinnati	1 airport

The best one-way flight to Cincinnati from St. Louis in the past 72 hours is $99. The best round-trip flight deal from St. Louis to Cincinnati found on momondo in the last 72 hours is $197.

The fastest flight from St. Louis to Cincinnati takes 3h 52m

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)

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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 4h 14m, 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 July 2025, there are 5 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 57% of the total bookings. Other popular airlines include United Airlines with 12%, Delta with 11%, and Southwest with 11%.

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
Frontier	PriceFrom $128	Free Cancellation	Rating 5.9 3,252 reviews	Search Frontier flights
American Airlines	PriceFrom $228	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $246	Free Cancellation	Rating 8.0 7,959 reviews	Search Delta flights
United Airlines	PriceFrom $261	Free Cancellation	Rating 7.4 8,864 reviews	Search United Airlines flights
Southwest	PriceFrom $326	Free Cancellation	Rating 8.0 4,239 reviews	Search Southwest flights

Florence

Mason

Newport

Sharonville

Covington

Middletown

Williamstown

Lawrenceburg

West Chester

Blue Ash

Fairfield

Oxford

Dry Ridge

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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Cheap flights from St. Louis to Cincinnati from $99

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 8/13. 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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Cheap round-trip flights

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Delta flights from St. Louis to Cincinnati

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

Southwest flights from St. Louis to Cincinnati

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

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?

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 July 2025, prices for St. Louis to Cincinnati flights are approximately 45% 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?

American Airlines, Southwest, and Frontier 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

Best Price Found

Fastest flight time

Direct flights

Airports in Cincinnati

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