CA $349 Cheap Flights from Cincinnati (CVG) to St. Louis (STL)

View CA $349 flight on Mon, Aug. 11, 2025Opens in a new window

Popular airlines from Cincinnati-Northern Kentucky Int'l Airport (CVG) to Lambert-St. Louis International Airport (STL)

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Cheap flights from Cincinnati (CVG) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $349 for one-way flights and CA $620 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $620 Roundtrip, found 10 hours ago
CA $620
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $620 found 10 hours ago
Delta
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $656 Roundtrip, found 10 hours ago
CA $656
Roundtrip
found 10 hours ago
Select Delta flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $656 found 10 hours ago
American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $656 Roundtrip, found 10 hours ago
CA $656
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $656 found 10 hours ago
American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $661 Roundtrip, found 10 hours ago
CA $661
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $661 found 10 hours ago
American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $664 Roundtrip, found 10 hours ago
CA $664
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $664 found 10 hours ago
American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $698 Roundtrip, found 10 hours ago
CA $698
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $698 found 10 hours ago
American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $706 Roundtrip, found 10 hours ago
CA $706
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $706 found 10 hours ago
Delta
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $711 Roundtrip, found 10 hours ago
CA $711
Roundtrip
found 10 hours ago
Select Delta flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $711 found 10 hours ago
American Airlines
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $734 Roundtrip, found 10 hours ago
CA $734
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $734 found 10 hours ago
Delta
Mon, Aug. 11 - Fri, Aug. 15
CVG
Cincinnati
STL
St. Louis
CA $739 Roundtrip, found 10 hours ago
CA $739
Roundtrip
found 10 hours ago
Select Delta flight, departing Mon, Aug. 11 from Cincinnati to St. Louis, returning Fri, Aug. 15, priced at CA $739 found 10 hours ago

Find the cheapest month to fly from Cincinnati (CVG) to St. Louis (STL)

February is typically the cheapest month to fly

From CA $165 - CA $727 per traveller.

Graph displaying average flight prices per month

Flight from Cincinnati to St. Louis (CVG - STL) route information
Origin airport
Cincinnati - Northern Kentucky Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
CA $619
Distance
492 km

Florence to St. Louis Flights

The easy way to book your flights from Cincinnati to St. Louis 

With Expedia, it’s simple to find and book flights to St. Louis from Cincinnati whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Lambert-St. Louis Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Cincinnati to St. Louis today, tomorrow, or this week.  

 

Save dollars with cheap flights from Cincinnati - Northern Kentucky Intl., CVG to Lambert-St. Louis Intl., STL 

Sort your search results by price to find great deals on your flight from Cincinnati to St. Louis—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Louis from Cincinnati currently is just CA $620 rising to CA $1,570.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Louis  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Louis from Cincinnati 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Louis with Expedia today.

Frequently asked questions

How much is a flight from CVG to STL?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Lambert-St. Louis Intl. Airport (STL) start from CA $620. Make your booking ASAP to get the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from CVG to Lambert Field?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Lambert-St. Louis Intl. Airport (STL) that have flexible change policies?
Flights from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Lambert-St. Louis Intl. Airport (STL) offering flexible change policies are available with many airlines. Simply use our "No change fees" filter while searching. You'll only need to cover the cost difference between flights, without any additional fees to worry about.
How many hours is the flight from CVG to Lambert-St. Louis Intl. Airport (STL)?
There are plenty of ways to make the 4 hours and 55 minutes between CVG and Lambert-St. Louis Intl. Airport (STL) go by quicker. If you want to be productive, organize your camera roll or clear out all those unwanted emails. A snooze also helps pass the time!
How far is the flight from CVG Airport to STL?
The distance from CVG Airport (CVG) to Lambert Field (STL) is 500 kilometres. You'll be walking down the air bridge and grabbing your bags from the carousel in next to no time.
Which airlines fly direct from Cincinnati - Northern Kentucky Intl. Airport (CVG) to STL?
Delta (DL) is one of the preferred choices for many travellers flying between CVG Airport and Lambert Field. Select from the 0 flights it operates on this route each month. Operating 0 flights every month on this route, American Airlines (AA) is another good option.
Are CVG Airport to Lambert-St. Louis Intl. Airport (STL) flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so it's no sure thing. While last-minute flight deals between CVG Airport and Lambert Field are possible, it's also a good idea to monitor prices well before you fly. In fact, some airlines publicize their prices up to 12 months prior to the departure date. Expedia is continuously updating the best airfare bargains around, so keep checking back and be ready to lock in your seat when the price dips.

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