What are the cheapest airlines flying from St. Louis to Cincinnati round-trip?

Southwest, at $157, was found to be the cheapest airline from St. Louis to Cincinnati.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 57% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from St. Louis to Cincinnati one-way?

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $125. Southwest flights start at $169 while deals on United Airlines start at $184 one-way.

What is the cheapest day to fly from St. Louis to Cincinnati?

Travelers seeking maximum savings on their St. Louis to Cincinnati flight should consider departing on Monday at noon when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from St. Louis to Cincinnati?

American Airlines, Delta and Frontier are the most popular airlines when flying from St. Louis to Cincinnati.

What is the cheapest day to fly round-trip from St. Louis to Cincinnati?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 60% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from St. Louis to Cincinnati?

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, July can be a great choice for travel to Cincinnati. Flights to Cincinnati from St. Louis in July are about $370 on average during July, but can be found for as low as $202.

Can I find deals for flights from St. Louis to Cincinnati that include hotel bookings?

Yes. In addition to deals on St. Louis to Cincinnati flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Cincinnati?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Cincinnati.

Can I find deals for business class flights from St. Louis to Cincinnati?

Yes. Cheapflights offers flight deals from St. Louis to Cincinnati by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$106+ Flights from St. Louis to Cincinnati

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Cheap flight deals from St. Louis to Cincinnati

Round-trip from	$157 (Southwest)
One-way from	$106 (Mytrip)
Popular in	February
Cheapest in	July
Average price	$381

From Lambert-St Louis to Cincinnati Cinci./N. Kentucky

Search Deals

One-way flight from Lambert-St Louis to Cincinnati Cinci./N. Kentucky

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from St. Louis to Cincinnati

Cheapest flights from St. Louis to Cincinnati
Explore the most affordable flight options available from St. Louis to Cincinnati. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Wed 8/62:15 pmSTL - CVG

1 stop7h 10mSouthwest

Mon 8/114:35 pmCVG - STL

1 stop7h 50mSouthwest

Deal found 6/12

$157

Wed 7/96:40 amSTL - CVG

1 stop5h 45mDelta

Sat 7/126:00 amCVG - STL

1 stop4h 33mDelta

Deal found 6/11

$249

Thu 7/244:28 pmSTL - CVG

1 stop7h 04mAmerican Airlines

Tue 8/512:39 pmCVG - STL

1 stop8h 40mAmerican Airlines

Deal found 6/12

$251

Thu 7/245:40 pmSTL - CVG

1 stop6h 39mFrontier

Sat 7/2610:20 amCVG - STL

1 stop4h 39mFrontier

Deal found 6/12

$273

Fri 7/1810:47 amSTL - CVG

2 stops11h 44mMultiple Airlines

Sun 7/206:15 amCVG - STL

1 stop11h 16mMultiple Airlines

Deal found 6/11

$288

Mon 9/83:20 pmSTL - CVG

1 stop4h 31mUnited Airlines

Thu 9/1111:23 amCVG - STL

1 stop3h 56mUnited Airlines

Deal found 6/10

$289

Best flights from St. Louis to Cincinnati
Discover carefully curated flight deals from St. Louis to Cincinnati that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Wed 8/62:15 pmSTL - CVG

1 stop7h 10mSouthwest

Mon 8/114:35 pmCVG - STL

1 stop7h 50mSouthwest

Deal found 6/12

$157

Wed 7/96:40 amSTL - CVG

1 stop5h 45mDelta

Sat 7/126:00 amCVG - STL

1 stop4h 33mDelta

Deal found 6/11

$249

Thu 7/244:28 pmSTL - CVG

1 stop7h 04mAmerican Airlines

Tue 8/512:39 pmCVG - STL

1 stop8h 40mAmerican Airlines

Deal found 6/12

$251

Thu 7/245:40 pmSTL - CVG

1 stop6h 39mFrontier

Sat 7/2610:20 amCVG - STL

1 stop4h 39mFrontier

Deal found 6/12

$273

Fri 7/1810:47 amSTL - CVG

2 stops11h 44mMultiple Airlines

Sun 7/206:15 amCVG - STL

1 stop11h 16mMultiple Airlines

Deal found 6/11

$288

Mon 9/83:20 pmSTL - CVG

1 stop4h 31mUnited Airlines

Thu 9/1111:23 amCVG - STL

1 stop3h 56mUnited Airlines

Deal found 6/10

$289

Last-minute flights from St. Louis to Cincinnati
Discover last-minute flight deals from St. Louis to Cincinnati. Data last updated June 12, 2025 and is based on user searches.

Sun 6/228:44 pmSTL - CVG

1 stop24h 15mFrontier

Sat 6/2810:20 amCVG - STL

1 stop4h 47mFrontier

Deal found 6/11

$394

Sun 6/226:36 pmSTL - CVG

2 stops27h 32mMultiple Airlines

Sat 6/287:30 amCVG - STL

2 stops34h 34mMultiple Airlines

Deal found 6/11

$433

Wed 7/96:40 amSTL - CVG

1 stop5h 45mDelta

Sat 7/126:00 amCVG - STL

1 stop4h 33mDelta

Deal found 6/11

$249

Fri 7/1810:47 amSTL - CVG

2 stops11h 44mMultiple Airlines

Sun 7/206:15 amCVG - STL

1 stop11h 16mMultiple Airlines

Deal found 6/11

$288

Fri 7/186:33 amSTL - CVG

1 stop5h 41mUnited Airlines

Sun 7/206:00 amCVG - STL

1 stop4h 59mUnited Airlines

Deal found 6/11

$307

Thu 7/244:28 pmSTL - CVG

1 stop7h 04mAmerican Airlines

Tue 8/512:39 pmCVG - STL

1 stop8h 40mAmerican Airlines

Deal found 6/12

$251

Thu 7/245:05 pmSTL - CVG

1 stop6h 05mSouthwest

Tue 8/51:15 pmCVG - STL

2 stops7h 45mSouthwest

Deal found 6/12

$257

Thu 7/245:40 pmSTL - CVG

1 stop6h 39mFrontier

Sat 7/2610:20 amCVG - STL

1 stop4h 39mFrontier

Deal found 6/12

$273

One-way flights from St. Louis to Cincinnati
Search for one-way flight options from St. Louis to Cincinnati. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Wed 7/2311:24 amSTL - CVG

1 stop24h 17mMultiple Airlines

Deal found 6/12

$106

Tue 7/225:15 amSTL - CVG

1 stop6h 17mAmerican Airlines

Deal found 6/12

$125

Tue 7/222:15 pmSTL - CVG

2 stops6h 40mSouthwest

Deal found 6/12

$169

Fri 8/110:00 amSTL - CVG

1 stop5h 52mUnited Airlines

Deal found 6/10

$184

Wed 6/253:42 pmSTL - CVG

1 stop4h 59mDelta

Deal found 6/10

$194

Tue 6/175:47 pmSTL - CVG

1 stop20h 24mFrontier

Deal found 6/11

$198

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Cincinnati that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 8/6

2:15 pm-10:25 pm

1 stop7h 10m

Cincinnati Cinci./N. Kentucky

Mon 8/11

4:35 pm-11:25 pm

1 stop7h 50m

$157

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 7/9

6:40 am-1:25 pm

1 stop5h 45m

Cincinnati Cinci./N. Kentucky

Sat 7/12

6:00 am-9:33 am

1 stop4h 33m

$249

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 7/24

4:28 pm-12:32 am

1 stop7h 04m

Cincinnati Cinci./N. Kentucky

Tue 8/5

12:39 pm-8:19 pm

1 stop8h 40m

$251

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 7/24

5:40 pm-1:19 am

1 stop6h 39m

Cincinnati Cinci./N. Kentucky

Sat 7/26

10:20 am-1:59 pm

1 stop4h 39m

$273

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 7/18

10:47 am-11:31 pm

2 stops11h 44m

Cincinnati Cinci./N. Kentucky

Sun 7/20

6:15 am-4:31 pm

1 stop11h 16m

$288

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 9/8

3:20 pm-8:51 pm

1 stop4h 31m

Cincinnati Cinci./N. Kentucky

Thu 9/11

11:23 am-2:19 pm

1 stop3h 56m

$289

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 7/23

11:24 am-12:41 pm

1 stop24h 17m

$106

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 7/22

5:15 am-12:32 pm

1 stop6h 17m

$125

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 7/22

2:15 pm-9:55 pm

2 stops6h 40m

$169

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 8/1

10:00 am-4:52 pm

1 stop5h 52m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 12 results

Best time to book a flight from St. Louis to Cincinnati

Have a flexible travel schedule? Discover the best time to fly to Cincinnati from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Cincinnati

What is the cheapest month to book a flight from St. Louis to Cincinnati?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Cincinnati (average of $239). Flying from St. Louis to Cincinnati in March is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to CVG?

When flying from St. Louis to Cincinnati, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 29% versus a flight in the morning.

Rainfall in Cincinnati by month

In terms of precipitation, rainfall in Cincinnati ranges from 2.8 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. September is typically the driest time to visit Cincinnati when rainfall is around 2.8 in.

Temperature in Cincinnati by month

If weather is an important factor for your trip to Cincinnati, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Cincinnati

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,287 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,950 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,790 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Frontier

5.9

Fair

3,295 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Cincinnati round-trip?
Southwest, at $157, was found to be the cheapest airline from St. Louis to Cincinnati.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 57% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from St. Louis to Cincinnati one-way?
To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $125. Southwest flights start at $169 while deals on United Airlines start at $184 one-way.
Can I find deals for flights from St. Louis to Cincinnati that include hotel bookings?
Yes. In addition to deals on St. Louis to Cincinnati flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Cincinnati?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Cincinnati.
Can I find deals for business class flights from St. Louis to Cincinnati?
Yes. Cheapflights offers flight deals from St. Louis to Cincinnati by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Cincinnati?
Currently, August is the cheapest month in which you can book a flight from St. Louis to Cincinnati (average of $239). Flying from St. Louis to Cincinnati in March is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 5 airlines flying from St. Louis to Cincinnati

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$128	Average$205	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$200	Average$308	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$231	Average$356	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$261	Average$436	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$326	Average$401	FlexibilityNo cancel fee	On-time63%

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$106+ Cheap flights from St. Louis to Cincinnati (STL - CVG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Cincinnati with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Cincinnati

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Cincinnati

Cheapest flights from St. Louis to CincinnatiExplore the most affordable flight options available from St. Louis to Cincinnati. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from St. Louis to Cincinnati. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Cincinnati that are best for you.

Best time to book a flight from St. Louis to Cincinnati

Have a flexible travel schedule? Discover the best time to fly to Cincinnati from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Cincinnati

What is the cheapest month to book a flight from St. Louis to Cincinnati?

What is the cheapest time of day to fly from STL to CVG?

Find hourly flight availability from St. Louis to Cincinnati. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Rainfall in Cincinnati by month

Plan your trip to Cincinnati by taking into account the average rainfall totals by month.

Temperature in Cincinnati by month

Plan your trip to Cincinnati by taking into account the average temperature totals by month.

Reviews of airlines servicing Cincinnati

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Cincinnati. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to Cincinnati round-trip?

What are the cheapest airlines to fly from St. Louis to Cincinnati one-way?

Can I find deals for flights from St. Louis to Cincinnati that include hotel bookings?

How can I find direct flights from St. Louis to Cincinnati?

Can I find deals for business class flights from St. Louis to Cincinnati?

What is the cheapest month to book a flight from St. Louis to Cincinnati?

Traveling to a place near St. Louis?

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Top 5 airlines flying from St. Louis to Cincinnati

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Cheapest flights from St. Louis to Cincinnati
Explore the most affordable flight options available from St. Louis to Cincinnati. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.