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

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

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Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $120
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $120

Frequently asked questions

How much does a flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS) cost?
Get a cheap one-way flight or cheap return flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS)?
is the least expensive month to fly from CVG to SUS. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from CVG to SUS. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS)?
Nonstop flights from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CVG to SUS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Spirit of St. Louis Airport (SUS)?
To land at Spirit of St. Louis Airport (SUS) without delays, pick a flight that takes off from Cincinnati - Northern Kentucky Intl. Airport (CVG) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Spirit of St. Louis Airport (SUS) last-minute?
Booking your ticket from CVG to SUS shortly before your trip is typically more expensive. However, if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a CVG to SUS flight and hotel package?
Compared with arranging flights and hotels separately, booking a CVG to SUS flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place takes the hassle out of travel planning. Just secure your flights and select from our extensive range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Spirit of St. Louis Airport (SUS)?
Typically, you're able to cancel or reschedule your CVG to SUS flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like more details, head to our Customer Service portal.

Travel information

Origin airport
Cincinnati - Northern Kentucky Intl.
Destination airport
Spirit of St. Louis
Distance
323 mi

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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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