Cheap Flights from Cincinnati (CVG) to St. Louis (CPS)

Popular airlines from Cincinnati-Northern Kentucky Int'l Airport (CVG) to St. Louis, MO (CPS-St. Louis Downtown)

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Frequently asked questions

How much does a flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS) cost?
Secure a cheap one-way flight or cheap return flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS)?
The cheapest month to fly from CVG to CPS is , when there's less demand. Off-peak season is usually when better flight deals are available between these airports.
What is the cheapest airline that flies from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS)?
To find the cheapest airline flying from CVG to CPS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS)?
You'll have to book a flight with a layover if you're traveling from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from CVG to CPS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS)?
To avoid possible delays on the Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS) last-minute?
Waiting until just before your departure to book a flight from CVG to CPS often results in higher prices. While you may come across some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book a CVG to CPS flight and hotel package?
You'll typically save money by booking a CVG to CPS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to St. Louis Downtown Airport (CPS)?
If you booked your CVG to CPS flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Travel information

Origin airport
Cincinnati - Northern Kentucky Intl.
Destination airport
St. Louis Downtown
Distance
297 mi

Book with confidence

Book with confidence

Cincinnati to St. Louis Flights

The cheapest times to fly from Cincinnati to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cincinnati to St. Louis are during the month of . You can find some of the cheapest flights from Cincinnati to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cincinnati to St. Louis

Sunday is one of the best days to book for cheap flights from Cincinnati to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cincinnati to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cincinnati to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cincinnati to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cincinnati to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Cincinnati to St. Louis Flights

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