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$98+ Cheap flights from Charleston to St. Louis (CHS - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — STL
oct. 11 — oct. 181
sam. 10/11
sam. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to Lambert-St Louis are usually found in August or October, booked 86 days in advance, depart on a Thursday or Tuesday and return on a Sunday

Cheap flight deals from Charleston to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septembre 11, 2025.

Round-trip from

$213
(United Airlines)

One-way from

$98
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$373

Good round-trip deal

$318 or less

Good one-way deal

$268 or less
From Charleston to Lambert-St Louis
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One-way flight from Charleston to Lambert-St Louis
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Highest demand for flights based on searches. 10% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Charleston to Lambert-St Louis.
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Price to beat on a one-way flight from Charleston to Lambert-St Louis.
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Find flight deals from Charleston to St. Louis

Cheapest flights from Charleston to St. Louis
Explore the most affordable flight options available from Charleston to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/111:06 amCHS - STL
1 stop6h 01mUnited Airlines
sam. 10/48:00 amSTL - CHS
1 stop5h 07mUnited Airlines
Deal found 9/10$213
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/307:10 amCHS - STL
1 stop7h 10mDelta
mar. 10/76:00 amSTL - CHS
1 stop6h 25mDelta
Deal found 9/11$221
This American Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/302:59 pmCHS - STL
2 stops6h 33mAmerican Airlines
mar. 10/77:00 amSTL - CHS
1 stop5h 36mAmerican Airlines
Deal found 9/11$226
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/146:30 amCHS - STL
2 stops8h 20mSouthwest
mar. 10/2110:05 amSTL - CHS
2 stops6h 45mSouthwest
Deal found 9/11$232
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/306:27 amCHS - STL
1 stop3h 49mAmerican Airlines
jeu. 10/24:36 pmSTL - CHS
1 stop6h 29mAmerican Airlines
Deal found 9/10$239
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/308:35 amCHS - STL
2 stops6h 50mSouthwest
mar. 10/78:55 amSTL - CHS
2 stops7h 50mSouthwest
Deal found 9/11$244
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 10/227:09 amCHS - STL
1 stop7h 13mDelta
dim. 10/262:15 pmSTL - CHS
1 stop6h 48mDelta
Deal found 9/10$252
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 11/76:00 amCHS - STL
1 stop5h 28mAmerican Airlines
lun. 11/102:05 pmSTL - CHS
1 stop6h 01mAmerican Airlines
Deal found 9/10$253
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 11/73:45 pmCHS - STL
1 stop8h 00mSouthwest
lun. 11/105:15 amSTL - CHS
2 stops7h 55mSouthwest
Deal found 9/10$296
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/252:59 pmCHS - STL
1 stop23h 03mMultiple Airlines
lun. 9/291:57 pmSTL - CHS
1 stop17h 40mMultiple Airlines
Deal found 9/11$299

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charleston to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septembre 11, 2025.
Use the filters below to find and compare flights from Charleston to St. Louis that are best for you.

Fly from

Charleston

Fly to

St. Louis

Route

Depart

Return

Price

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mer. 10/1

11:06 am-4:07 pm

1 stop6h 01m

Lambert-St Louis

sam. 10/4

8:00 am-2:07 pm

1 stop5h 07m

$213

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 9/30

7:10 am-1:20 pm

1 stop7h 10m

Lambert-St Louis

mar. 10/7

6:00 am-1:25 pm

1 stop6h 25m

$221

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 10/14

7:05 pm-10:04 pm

1 stop3h 59m

Lambert-St Louis

mar. 10/21

1:35 pm-9:03 pm

1 stop6h 28m

$221

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 9/30

2:59 pm-8:32 pm

2 stops6h 33m

Lambert-St Louis

mar. 10/7

7:00 am-1:36 pm

1 stop5h 36m

$226

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

jeu. 10/9

8:03 pm-11:41 pm

1 stop4h 38m

Lambert-St Louis

mar. 10/14

1:30 pm-8:51 pm

1 stop6h 21m

$226

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 10/14

6:30 am-1:50 pm

2 stops8h 20m

Lambert-St Louis

mar. 10/21

10:05 am-5:50 pm

2 stops6h 45m

$232

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 9/30

6:27 am-9:16 am

1 stop3h 49m

Lambert-St Louis

jeu. 10/2

4:36 pm-12:05 am

1 stop6h 29m

$239

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 9/30

8:35 am-2:25 pm

2 stops6h 50m

Lambert-St Louis

mar. 10/7

8:55 am-5:45 pm

2 stops7h 50m

$244

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

ven. 11/7

6:00 am-10:28 am

1 stop5h 28m

Lambert-St Louis

lun. 11/10

2:05 pm-9:06 pm

1 stop6h 01m

$244

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mer. 10/22

12:54 pm-3:55 pm

1 stop4h 01m

Lambert-St Louis

dim. 10/26

6:00 am-2:12 pm

1 stop7h 12m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results
1
2

Best time to book a flight from Charleston to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Charleston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Charleston to St. Louis

How far ahead should I book a flight from Charleston to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Charleston to St. Louis. Price data was last updated on August 29, 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Charleston to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Charleston to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Charleston to St. Louis (average of $311). Flying from Charleston to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CHS to STL?

Find hourly flight availability from Charleston to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septembre 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Charleston to St. Louis at noon. If you’re flexible enough to do this you can expect to save up to 3% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Charleston to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Charleston to St. Louis. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their Charleston to St. Louis flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated septembre 11, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and American Airlines from Charleston to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Charleston to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Charleston to St. Louis flight route?

    Flights from Charleston to Lambert-St Louis have been viewed 8 times in the past calendar month.

  • How long is the flight from Charleston to St. Louis?

    Departing from Charleston to St. Louis will take you 6h 01m. Airlines will cover a distance of 705 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Charleston to St. Louis round-trip?

    Our cheapest airline available from Charleston to St. Louis is American Airlines. Our recent data shows that you can find tickets from as low as $282 on this airline. Additional options worth looking into are Southwest and Delta, starting at $287 and $316 round-trip. You may be able to fly from Charleston to St. Louis for 28% less than the average price by searching for these airlines.

  • What are the cheapest flights from Charleston to St. Louis?

    While on average a flight from Charleston to St. Louis is generally $351, our data shows the cheapest flight currently is $159. When looking at the most popular route, (Charleston - Lambert-St Louis), you can expect to pay $213 for that flight.

  • Can I find deals for flights from Charleston to St. Louis that include hotel bookings?

    Yes. In addition to deals on Charleston to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Charleston to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Charleston to St. Louis.

  • Can I find deals for business class flights from Charleston to St. Louis?

    Yes. Cheapflights offers flight deals from Charleston to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Charleston to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Charleston to St. Louis (average of $311). Flying from Charleston to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Charleston to St. Louis

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Top 3 airlines flying from Charleston to St. Louis

Discover the top 3 airlines that operate flights from Charleston to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$282Average$410FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$287Average$363FlexibilityNo cancel feeOn-time63%
DeltaCheapest$316Average$405FlexibilityNo cancel feeOn-timeN/A

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