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

Frontier is the most popular carrier operating from Lambert-St Louis to Cincinnati Cinci./N. Kentucky

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 63% 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 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.

$68 Cheap Flights from St. Louis to Cincinnati in 2026

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8:32 pm - 7:31 am

STL

CVG

9h 59m1 stop

4:23 pm - 11:33 pm

CVG

STL

8h 10m1 stop

$181Frontier

sáb., ene. 17 - mar., ene. 20

3:49 pm - 9:25 pm

STL

CVG

28h 36m1 stop

12:17 pm - 12:27 am

CVG

STL

13h 10m1 stop

$190Frontier

mar., feb. 24 - vie., feb. 27

6:00 am - 1:27 pm

STL

CVG

6h 27m1 stop

6:04 pm - 11:37 pm

CVG

STL

6h 33m1 stop

$195Delta

mié., ene. 28 - mié., ene. 28

10:01 pm - 11:57 pm

STL

CVG

24h 56m1 stop

10:30 am - 11:33 pm

CVG

STL

14h 03m1 stop

$208Frontier

jue., feb. 5 - lun., feb. 9

3:49 pm - 2:10 pm

STL

CVG

21h 21m1 stop

1:07 pm - 12:27 am

CVG

STL

12h 20m2 stops

$209Multiple Airlines

mar., feb. 24 - vie., feb. 27

5:42 pm - 10:20 pm

STL

CVG

27h 38m1 stop

5:39 pm - 11:33 pm

CVG

STL

6h 54m1 stop

$212Frontier

mar., ene. 20 - vie., ene. 23

10:01 pm - 8:53 pm

STL

CVG

21h 52m2 stops

5:39 pm - 11:33 pm

CVG

STL

6h 54m1 stop

$214Frontier

jue., feb. 5 - lun., feb. 9

11:21 am - 6:33 pm

STL

CVG

6h 12m1 stop

1:20 pm - 7:07 am

CVG

STL

18h 47m1 stop

$225Frontier

mar., mar. 24 - jue., mar. 26

11:05 am - 9:27 pm

STL

CVG

9h 22m2 stops

1:09 pm - 6:34 pm

CVG

STL

6h 25m1 stop

$234American Airlines

sáb., ene. 17 - mar., ene. 20

8:32 pm - 7:31 am

STL

CVG

9h 59m1 stop

9:30 pm - 6:51 am

CVG

STL

10h 21m1 stop

$236Frontier

sáb., ene. 17 - dom., ene. 18

Frontier flights from St. Louis to Cincinnati

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

Frontier

Jan 17

STL8:32 pmLambert-St Louis

9h 59m

1 stop

CVG7:31 amCincinnati Cinci./N. Kentucky

Jan 20

CVG4:23 pmCincinnati Cinci./N. Kentucky

8h 10m

1 stop

STL11:33 pmLambert-St Louis

$181

Find similar

Frontier

Feb 24

STL3:49 pmLambert-St Louis

28h 36m

1 stop

CVG9:25 pmCincinnati Cinci./N. Kentucky

Feb 27

CVG12:17 pmCincinnati Cinci./N. Kentucky

13h 10m

1 stop

STL12:27 amLambert-St Louis

$190

Find similar

Frontier

Feb 5

STL10:01 pmLambert-St Louis

24h 56m

1 stop

CVG11:57 pmCincinnati Cinci./N. Kentucky

Feb 9

CVG10:30 amCincinnati Cinci./N. Kentucky

14h 03m

1 stop

STL11:33 pmLambert-St Louis

$208

Find similar

American Airlines flights from St. Louis to Cincinnati

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

American Airlines

Jan 17

STL11:05 amLambert-St Louis

9h 22m

2 stops

CVG9:27 pmCincinnati Cinci./N. Kentucky

Jan 20

CVG1:09 pmCincinnati Cinci./N. Kentucky

6h 25m

1 stop

STL6:34 pmLambert-St Louis

$234

Find similar

American Airlines

Jan 20

STL3:20 pmLambert-St Louis

3h 41m

1 stop

CVG8:01 pmCincinnati Cinci./N. Kentucky

Jan 22

CVG8:54 amCincinnati Cinci./N. Kentucky

7h 10m

1 stop

STL3:04 pmLambert-St Louis

$438

Find similar

American Airlines

Jan 17

STL11:05 amLambert-St Louis

9h 22m

2 stops

CVG9:27 pmCincinnati Cinci./N. Kentucky

Jan 18

CVG3:18 pmCincinnati Cinci./N. Kentucky

3h 56m

1 stop

STL6:14 pmLambert-St Louis

$562

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 1/17

8:32 pm-7:31 am

1 stop9h 59m

Cincinnati Cinci./N. Kentucky

mar. 1/20

4:23 pm-11:33 pm

1 stop8h 10m

$181

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 2/24

3:49 pm-9:25 pm

1 stop28h 36m

Cincinnati Cinci./N. Kentucky

vie. 2/27

12:17 pm-12:27 am

1 stop13h 10m

$190

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mié. 1/28

6:00 am-1:27 pm

1 stop6h 27m

Cincinnati Cinci./N. Kentucky

mié. 1/28

6:04 pm-11:37 pm

1 stop6h 33m

$195

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

jue. 2/5

10:01 pm-11:57 pm

1 stop24h 56m

Cincinnati Cinci./N. Kentucky

lun. 2/9

10:30 am-11:33 pm

1 stop14h 03m

$208

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 2/24

3:49 pm-2:10 pm

1 stop21h 21m

Cincinnati Cinci./N. Kentucky

vie. 2/27

1:07 pm-12:27 am

2 stops12h 20m

$209

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 1/20

5:42 pm-10:20 pm

1 stop27h 38m

Cincinnati Cinci./N. Kentucky

vie. 1/23

5:39 pm-11:33 pm

1 stop6h 54m

$212

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

jue. 2/5

10:01 pm-8:53 pm

2 stops21h 52m

Cincinnati Cinci./N. Kentucky

lun. 2/9

5:39 pm-11:33 pm

1 stop6h 54m

$214

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

mar. 3/24

11:21 am-6:33 pm

1 stop6h 12m

Cincinnati Cinci./N. Kentucky

jue. 3/26

1:20 pm-7:07 am

1 stop18h 47m

$225

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 1/17

11:05 am-9:27 pm

2 stops9h 22m

Cincinnati Cinci./N. Kentucky

mar. 1/20

1:09 pm-6:34 pm

1 stop6h 25m

$234

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

sáb. 1/17

8:32 pm-7:31 am

1 stop9h 59m

Cincinnati Cinci./N. Kentucky

dom. 1/18

9:30 pm-6:51 am

1 stop10h 21m

$236

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 27% 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	4h 02m
Direct flights	None

The fastest flight from St. Louis to Cincinnati takes 4h 02m

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 4h 02m, 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 71% of the total bookings. Other popular airlines include Delta with 29%.

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 11,088 reviews		Search American Airlines flights
Delta	PriceFrom $196	Free Cancellation	Rating 7.9 8,022 reviews		Search Delta flights

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Lawrenceburg

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Corinth

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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.

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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 $68

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 1/21. 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

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

As of January 2026, prices for St. Louis to Cincinnati flights are approximately 27% 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 is the most popular carrier 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