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

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

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

1 flights are operational weekly from St. Louis to Cincinnati as of December 2025. The most popular departure day for this route is Wed, with 100% of flights per week taking off on this day.

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.

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.

$80 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

$162Frontier

Mon, Jan 12 - Thu, Jan 15

1:07 pm - 11:38 pm

STL

CVG

9h 31m1 stop

11:57 am - 10:33 pm

CVG

STL

11h 36m1 stop

$204Frontier

Thu, Jan 8 - Mon, Jan 12

8:39 am - 8:24 pm

STL

CVG

10h 45m1 stop

9:30 pm - 6:51 am

CVG

STL

10h 21m1 stop

$211Frontier

Fri, Jan 16 - Sun, Jan 18

1:07 pm - 11:54 pm

STL

CVG

9h 47m1 stop

8:46 am - 7:54 am

CVG

STL

24h 08m2 stops

$223Frontier

Mon, Jan 12 - Thu, Jan 15

8:32 pm - 3:03 pm

STL

CVG

17h 31m2 stops

9:30 pm - 6:51 am

CVG

STL

10h 21m1 stop

$230Multiple Airlines

Fri, Jan 16 - Sun, Jan 18

1:07 pm - 11:38 pm

STL

CVG

9h 31m1 stop

11:57 am - 10:33 pm

CVG

STL

11h 36m1 stop

$234Frontier

Thu, Jan 8 - Mon, Jan 12

10:42 am - 7:18 pm

STL

CVG

7h 36m1 stop

9:26 pm - 10:33 pm

CVG

STL

26h 07m1 stop

$266Frontier

Thu, Jan 1 - Mon, Jan 5

9:07 am - 10:49 pm

STL

CVG

12h 42m1 stop

6:10 am - 10:02 am

CVG

STL

28h 52m1 stop

$277Frontier

Mon, Jan 5 - Fri, Jan 9

8:17 am - 3:27 pm

STL

CVG

6h 10m1 stop

6:02 pm - 9:07 pm

CVG

STL

4h 05m1 stop

$289United Airlines

Wed, Mar 11 - Sun, Mar 15

5:06 pm - 12:42 am

STL

CVG

6h 36m1 stop

12:03 pm - 10:34 pm

CVG

STL

11h 31m1 stop

$301Frontier

Mon, Jan 12 - Mon, Jan 19

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

$162

Find similar

Frontier

Jan 8

STL1:07 pmLambert-St Louis

9h 31m

1 stop

CVG11:38 pmCincinnati Cinci./N. Kentucky

Jan 12

CVG11:57 amCincinnati Cinci./N. Kentucky

11h 36m

1 stop

STL10:33 pmLambert-St Louis

$204

Find similar

Frontier

Jan 16

STL8:39 amLambert-St Louis

10h 45m

1 stop

CVG8:24 pmCincinnati Cinci./N. Kentucky

Jan 18

CVG9:30 pmCincinnati Cinci./N. Kentucky

10h 21m

1 stop

STL6:51 amLambert-St Louis

$211

Find similar

United Airlines flights from St. Louis to Cincinnati

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

United Airlines

Mar 11

STL8:17 amLambert-St Louis

6h 10m

1 stop

CVG3:27 pmCincinnati Cinci./N. Kentucky

Mar 15

CVG6:02 pmCincinnati Cinci./N. Kentucky

4h 05m

1 stop

STL9:07 pmLambert-St Louis

$289

Find similar

United Airlines

Dec 30

STL3:10 pmLambert-St Louis

4h 08m

1 stop

CVG8:18 pmCincinnati Cinci./N. Kentucky

Jan 3

CVG5:45 pmCincinnati Cinci./N. Kentucky

5h 58m

1 stop

STL10:43 pmLambert-St Louis

$499

Find similar

United Airlines

Dec 28

STL6:35 pmLambert-St Louis

4h 09m

1 stop

CVG11:44 pmCincinnati Cinci./N. Kentucky

Dec 30

CVG9:00 amCincinnati Cinci./N. Kentucky

6h 26m

1 stop

STL2:26 pmLambert-St Louis

$528

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

$162

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/8

1:07 pm-11:38 pm

1 stop9h 31m

Cincinnati Cinci./N. Kentucky

Mon 1/12

11:57 am-10:33 pm

1 stop11h 36m

$204

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 1/16

8:39 am-8:24 pm

1 stop10h 45m

Cincinnati Cinci./N. Kentucky

Sun 1/18

9:30 pm-6:51 am

1 stop10h 21m

$211

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 1/12

1:07 pm-11:54 pm

1 stop9h 47m

Cincinnati Cinci./N. Kentucky

Thu 1/15

8:46 am-7:54 am

2 stops24h 08m

$223

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 1/16

8:32 pm-3:03 pm

2 stops17h 31m

Cincinnati Cinci./N. Kentucky

Sun 1/18

9:30 pm-6:51 am

1 stop10h 21m

$230

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/8

1:07 pm-11:38 pm

1 stop9h 31m

Cincinnati Cinci./N. Kentucky

Mon 1/12

11:57 am-10:33 pm

1 stop11h 36m

$234

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 1/1

10:42 am-7:18 pm

1 stop7h 36m

Cincinnati Cinci./N. Kentucky

Mon 1/5

9:26 pm-10:33 pm

1 stop26h 07m

$266

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 1/5

9:07 am-10:49 pm

1 stop12h 42m

Cincinnati Cinci./N. Kentucky

Fri 1/9

6:10 am-10:02 am

1 stop28h 52m

$277

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 3/11

8:17 am-3:27 pm

1 stop6h 10m

Cincinnati Cinci./N. Kentucky

Sun 3/15

6:02 pm-9:07 pm

1 stop4h 05m

$289

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 1/12

5:06 pm-12:42 am

1 stop6h 36m

Cincinnati Cinci./N. Kentucky

Mon 1/19

12:03 pm-10:34 pm

1 stop11h 31m

$301

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 17% 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 54m
Direct flights	None

The fastest flight from St. Louis to Cincinnati takes 3h 54m

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 54m, 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 60% 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 11,054 reviews	Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
United Airlines	PriceFrom $261	Free Cancellation	Rating 7.4 9,091 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 $80

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 2/3. 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

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 17% 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 and Delta 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?

1 flights are operational weekly from St. Louis to Cincinnati as of December 2025. The most popular departure day for this route is Wed, with 100% 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