$86 Cheap Flights from St. Louis (STL) to Charleston (CHS)

View $86 flight on Thu, Dec 11, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Charleston Intl. Airport (CHS)

Cheap Flights from St. Louis to Charleston (STL-CHS)

Prices were available within the past 7 days and start at $86 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Thu, Dec 11 - Mon, Dec 15
STL
St. Louis
CHS
Charleston
$219 Roundtrip, found 5 hours ago
$219
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Thu, Dec 11 from St. Louis to Charleston, returning Mon, Dec 15, priced at $219 found 5 hours ago
Spirit Airlines
Thu, Nov 20 - Mon, Nov 24
STL
St. Louis
CHS
Charleston
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Nov 20 from St. Louis to Charleston, returning Mon, Nov 24, priced at $228 found 1 day ago
Spirit Airlines
Thu, Dec 4 - Mon, Dec 8
STL
St. Louis
CHS
Charleston
$239 Roundtrip, found 6 hours ago
$239
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Thu, Dec 4 from St. Louis to Charleston, returning Mon, Dec 8, priced at $239 found 6 hours ago
Spirit Airlines
Thu, Nov 20 - Sun, Nov 23
STL
St. Louis
CHS
Charleston
$248 Roundtrip, found 1 day ago
$248
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu, Nov 20 from St. Louis to Charleston, returning Sun, Nov 23, priced at $248 found 1 day ago
Spirit Airlines
Sun, Dec 14 - Tue, Dec 16
STL
St. Louis
CHS
Charleston
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Sun, Dec 14 from St. Louis to Charleston, returning Tue, Dec 16, priced at $253 found 4 days ago
Southwest Airlines
Mon, Feb 23 - Thu, Feb 26
STL
St. Louis
CHS
Charleston
$267 Roundtrip, just found
$267
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Feb 23 from St. Louis to Charleston, returning Thu, Feb 26, priced at $267 just found
Delta
Thu, Jan 29 - Sun, Feb 1
STL
St. Louis
CHS
Charleston
$267 Roundtrip, just found
$267
Roundtrip
just found
Select Delta flight, departing Thu, Jan 29 from St. Louis to Charleston, returning Sun, Feb 1, priced at $267 just found
United
Thu, Jan 29 - Sun, Feb 1
STL
St. Louis
CHS
Charleston
$267 Roundtrip, just found
$267
Roundtrip
just found
Select United flight, departing Thu, Jan 29 from St. Louis to Charleston, returning Sun, Feb 1, priced at $267 just found
American Airlines
Fri, Jan 16 - Mon, Jan 19
STL
St. Louis
CHS
Charleston
$267 Roundtrip, just found
$267
Roundtrip
just found
Select American Airlines flight, departing Fri, Jan 16 from St. Louis to Charleston, returning Mon, Jan 19, priced at $267 just found
Delta
Thu, Feb 5 - Sun, Feb 8
STL
St. Louis
CHS
Charleston
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Feb 5 from St. Louis to Charleston, returning Sun, Feb 8, priced at $269 found 1 day ago

Find the cheapest month to fly from St. Louis (STL) to Charleston (CHS)

August is typically the cheapest month to fly

From $172 - $402 per traveler.

Alternative airports near Charleston

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

Select flight to Charleston Intl. CHS. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $347
CHS
Charleston Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $347
Flights from St. Louis (STL) to Charleston (CHS)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Charleston Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$219
Distance
705 mi

St. Louis to Charleston Flights

The cheapest times to fly from St. Louis to Charleston

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

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Charleston: 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 St. Louis to Charleston

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 St. Louis to Charleston in 2025. You can also book with separate airlines for your outbound and return journeys, from $86 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 St. Louis to Charleston 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 St. Louis to Charleston 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 Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS) cost?
Lock in a cheap one-way flight from $86 or cheap return flight from $219 from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS) 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 Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS)?
Flying in December can help you save, as it's the cheapest month for flights between STL and CHS. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest STL to CHS flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to CHS?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on various factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What airline has the least delays from STL to CHS?
Southwest Airlines has the best track record for on-time direct flights from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS), with an on-time rating of 100%. Use the Expedia App to see your flight status before you take off and get real-time updates about any trip changes.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS)?
To avoid potential delays on the Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS) route, fly before 3 PM. Flights after this time 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 Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS) last-minute?
Booking your ticket from STL to CHS just before your getaway is generally more expensive. However, if there's some wiggle room with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a STL to CHS flight and hotel package?
Opting for a STL to CHS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Charleston Intl. Airport (CHS)?
It's usually possible to reschedule or cancel your STL to CHS flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.