HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cincinnati

$97+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CVG
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Cincinnati with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Cincinnati

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Cincinnati (CVG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$188
(Frontier)

One-way from

$97
(FlightHub)

Popular in

July

Cheapest in

August

Average price

$532
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. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 29, 2025.

This Frontier deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/165:40 pmSTL - CVG
1 stop16h 07mFrontier
Sun 8/176:08 pmCVG - STL
1 stop16h 03mFrontier
Deal found 7/28$188
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1910:16 amSTL - CVG
1 stop6h 37mAmerican Airlines
Wed 8/203:37 pmCVG - STL
1 stop6h 15mAmerican Airlines
Deal found 7/29$197
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/197:00 amSTL - CVG
1 stop4h 25mSouthwest
Wed 8/201:15 pmCVG - STL
2 stops7h 45mSouthwest
Deal found 7/29$202
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/86:35 amSTL - CVG
1 stop5h 29mUnited Airlines
Thu 9/1111:23 amCVG - STL
1 stop3h 56mUnited Airlines
Deal found 7/28$367
This Mytrip deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:47 amSTL - CVG
2 stops23h 41mMultiple Airlines
Sun 8/36:15 amCVG - STL
1 stop11h 16mMultiple Airlines
Deal found 7/28$458

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Cincinnati that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from St. Louis to Cincinnati that are best for you.

Fly from

St. Louis

Fly to

Cincinnati

Route

Depart

Return

Price

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Sat 8/16

5:40 pm-10:47 am

1 stop16h 07m

Cincinnati Cinci./N. Kentucky

Sun 8/17

6:08 pm-9:11 am

1 stop16h 03m

$188

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 9/17

9:57 am-5:54 pm

1 stop6h 57m

Cincinnati Cinci./N. Kentucky

Sat 9/20

11:11 am-6:22 pm

1 stop8h 11m

$197

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 9/10

7:10 am-2:10 pm

2 stops6h 00m

Cincinnati Cinci./N. Kentucky

Fri 9/12

6:40 am-8:40 am

1 stop3h 00m

$257

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Mon 9/8

6:35 am-1:04 pm

1 stop5h 29m

Cincinnati Cinci./N. Kentucky

Thu 9/11

11:23 am-2:19 pm

1 stop3h 56m

$367

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Fri 8/1

10:47 am-11:28 am

2 stops23h 41m

Cincinnati Cinci./N. Kentucky

Sun 8/3

6:15 am-4:31 pm

1 stop11h 16m

$458

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Wed 8/13

7:29 pm-5:08 pm

1 stop20h 39m

$97

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 8/26

7:10 am-2:10 pm

2 stops6h 00m

$104

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Thu 9/11

12:05 pm-11:32 pm

3 stops34h 27m

$172

St. LouisCincinnati

STL - CVG

STLCVG

Lambert-St Louis

Tue 8/26

5:15 am-11:44 pm

3 stops17h 29m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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?

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 July 29, 2025.

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.

Reviews of airlines servicing Cincinnati

Get insights into the airlines that provide service to Cincinnati. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cincinnati. Reviews last updated July 29, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from St. Louis to Cincinnati have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,899 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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?

    Frontier, at $188, was found to be the cheapest airline from St. Louis to Cincinnati.Alternate airlines to your destination round-trip include American Airlines and Southwest. These flights start at 50% 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 Frontier, which is currently one of the cheapest options available, starting at $97. Southwest flights start at $104 while deals on United Airlines start at $298 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

Traveling to a place near Cincinnati?

Book flights to Cincinnati if you plan to visit one of these locations
Florence
Newport
Sharonville
Mason
West Chester
Covington
Hebron
Lawrenceburg
Fairfield
Blue Ash
Williamstown
Sparta
Middletown
Oxford
Edgewood
Dry Ridge

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Cincinnati

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Detroit flights
Kansas City to Detroit flights
St. Louis to Cleveland flights
Kansas City to Cleveland flights
Kansas City to Cincinnati flights
Kansas City to Columbus flights
St. Louis to Pittsburgh flights
Springfield to Cleveland flights
Kansas City to Pittsburgh flights
Kansas City to Akron flights
St. Louis to Columbus flights
Springfield to Detroit flights
Springfield to Columbus flights
St. Louis to Dayton flights
Springfield to Pittsburgh flights
Kansas City to Dayton flights
St. Louis to Akron flights
Columbia to Pittsburgh flights
Joplin to Detroit flights
Kansas City to Erie flights
Kansas City to Toledo flights
Springfield to Toledo flights
Kansas City to Huntington flights
Columbia to Dayton flights
St. Louis to Toledo flights

Top 4 airlines flying from St. Louis to Cincinnati

Discover the top 4 airlines that operate flights from St. Louis to Cincinnati. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$196Average$308FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$218Average$355FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$261Average$406FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$326Average$401FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.