Cheap Flights from Charlotte (CLT) to St. Louis (CPS)

Popular airlines from Charlotte-Douglas Intl. Airport (CLT) to St. Louis, MO (CPS-St. Louis Downtown)

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 $256
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $256
Flights from Charlotte (CLT) to St. Louis (CPS)
Origin airport
Charlotte-Douglas Intl.
Destination airport
St. Louis Downtown
Distance
558 mi

Charlotte to St. Louis Flights

The cheapest times to fly from Charlotte 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 Charlotte to St. Louis are during the month of . You can find some of the cheapest flights from Charlotte to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Charlotte 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 Charlotte 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 Charlotte 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 Charlotte 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 Charlotte 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.

 

Frequently asked questions

How much does a flight from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS) cost?
Get a cheap one-way flight or cheap return flight from Charlotte-Douglas Intl. Airport (CLT) 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 Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS)?
is the least expensive month to fly from CLT to CPS. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from CLT to CPS. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS)?
There are no daily direct flights from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from CLT to CPS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS)?
To avoid potential delays on the Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS) route, fly before 3 PM. Later flights 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.
What airports do you fly into for East St. Louis from Charlotte-Douglas Intl. Airport (CLT)?
Lambert-St. Louis Intl. Airport (STL) is the only airport in East St. Louis with direct flights from Charlotte-Douglas Intl. Airport (CLT). Consider your options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS) last-minute?
Holding off until right before your break to book a ticket from CLT to CPS often results in higher prices. While you may find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to boost your chances of landing a bargain.
Is it cheaper to book a CLT to CPS flight and hotel package?
You can save money by securing a CLT 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 simple to manage everything in one place. Once you've chosen your preferred flights and accommodations, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from Charlotte-Douglas Intl. Airport (CLT) to St. Louis Downtown Airport (CPS)?
If you booked your CLT 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 after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.