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$74+ Cheap flights from St. Louis to Charleston (STL - CHS)

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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — CHS
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Charleston are usually found in August or September, booked 86 days in advance, depart on a Sunday or Monday and return on a Thursday

Cheap flight deals from St. Louis to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Charleston (CHS). 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 August 18, 2025.

Round-trip from

$180
(Kiwi.com)

One-way from

$74
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$334

Good round-trip deal

$311 or less
From Lambert-St Louis to Charleston
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One-way flight from Lambert-St Louis to Charleston
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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Lambert-St Louis to Charleston.
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Find flight deals from St. Louis to Charleston

Cheapest flights from St. Louis to Charleston
Explore the most affordable flight options available from St. Louis to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Thu 10/210:35 amSTL - CHS
1 stop21h 30mSpirit Airlines
Mon 10/610:31 amCHS - STL
1 stop24h 31mSpirit Airlines
Deal found 8/16$180
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:57 amSTL - CHS
1 stop21h 29mSpirit Airlines
Mon 10/2710:31 amCHS - STL
1 stop24h 31mSpirit Airlines
Deal found 8/17$183
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:57 amSTL - CHS
1 stop21h 29mSpirit Airlines
Mon 10/1310:31 amCHS - STL
1 stop24h 31mSpirit Airlines
Deal found 8/15$213
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Thu 10/24:00 pmSTL - CHS
2 stops16h 05mMultiple Airlines
Mon 10/610:31 amCHS - STL
1 stop24h 31mMultiple Airlines
Deal found 8/16$226
This Kiwi.com deal was found by Cheapflights users on 8/16. 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.
Thu 10/210:35 amSTL - CHS
1 stop21h 30mMultiple Airlines
Tue 10/77:36 pmCHS - STL
2 stops38h 46mMultiple Airlines
Deal found 8/16$260
This Delta deal was found by Cheapflights users on 8/16. 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.
Wed 10/19:25 amSTL - CHS
1 stop7h 44mDelta
Tue 10/75:35 amCHS - STL
1 stop3h 30mDelta
Deal found 8/16$267
This Delta deal was found by Cheapflights users on 8/16. 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.
Wed 10/85:15 pmSTL - CHS
1 stop5h 44mDelta
Mon 10/1312:54 pmCHS - STL
1 stop5h 53mDelta
Deal found 8/16$276
This Kiwi.com deal was found by Cheapflights users on 8/15. 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.
Thu 10/911:32 amSTL - CHS
2 stops20h 54mMultiple Airlines
Mon 10/1310:31 amCHS - STL
1 stop24h 31mMultiple Airlines
Deal found 8/15$281
This Delta deal was found by Cheapflights users on 8/16. 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.
Sat 9/275:27 pmSTL - CHS
1 stop5h 20mDelta
Sat 10/46:20 amCHS - STL
1 stop3h 24mDelta
Deal found 8/16$285
This American Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 10/116:00 amSTL - CHS
2 stops6h 23mAmerican Airlines
Tue 10/147:45 pmCHS - STL
1 stop5h 09mAmerican Airlines
Deal found 8/16$286
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 9/276:00 amSTL - CHS
1 stop7h 28mAmerican Airlines
Sat 10/42:59 pmCHS - STL
2 stops6h 33mAmerican Airlines
Deal found 8/17$290

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Charleston 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 August 18, 2025.
Use the filters below to find and compare flights from St. Louis to Charleston that are best for you.

Fly from

St. Louis

Fly to

Charleston

Route

Depart

Return

Price

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Thu 10/2

10:35 am-9:05 am

1 stop21h 30m

Charleston

Mon 10/6

10:31 am-10:02 am

1 stop24h 31m

$180

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Thu 10/23

10:57 am-9:26 am

1 stop21h 29m

Charleston

Mon 10/27

10:31 am-10:02 am

1 stop24h 31m

$183

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Thu 10/9

10:57 am-9:26 am

1 stop21h 29m

Charleston

Mon 10/13

10:31 am-10:02 am

1 stop24h 31m

$213

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Thu 10/2

4:00 pm-9:05 am

2 stops16h 05m

Charleston

Mon 10/6

10:31 am-10:02 am

1 stop24h 31m

$226

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Thu 10/23

11:32 am-9:26 am

2 stops20h 54m

Charleston

Mon 10/27

10:31 am-10:02 am

1 stop24h 31m

$226

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Thu 10/2

10:35 am-9:05 am

1 stop21h 30m

Charleston

Tue 10/7

7:36 pm-9:22 am

2 stops38h 46m

$260

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Wed 10/1

9:25 am-6:09 pm

1 stop7h 44m

Charleston

Tue 10/7

5:35 am-8:05 am

1 stop3h 30m

$267

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Wed 10/8

7:05 am-11:46 am

1 stop3h 41m

Charleston

Mon 10/13

8:03 pm-11:41 pm

1 stop4h 38m

$276

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Sat 10/11

3:59 pm-8:51 pm

1 stop3h 52m

Charleston

Tue 10/14

11:25 am-2:43 pm

1 stop4h 18m

$276

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Wed 10/1

7:10 am-11:48 am

1 stop3h 38m

Charleston

Mon 10/6

5:35 am-8:05 am

1 stop3h 30m

$276

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 18 results
1
2

The best insider tips for St. Louis to Charleston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Charleston trip
Airports
STL

Expect security screening at STL to take 5-10 minutes during off-peak times. Check wait times online before heading to the airport.

Read more about STLby Taryn White
CHS

For a quick ride to downtown Charleston, use rideshare services from CHS. They're convenient and offer in-app tracking.

Read more about CHSby Ramsey Qubein
Our travel experts
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on CHS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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

Have a flexible travel schedule? Discover the best time to fly to Charleston from St. Louis 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 St. Louis to Charleston

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Charleston. Price data was last updated on August 8, 2025.

The price you pay for your flight from St. Louis to Charleston may vary depending on when you book. For the best chance of a lower fare, look to book 86 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from St. Louis to Charleston (average of $217). Flying from St. Louis to Charleston in March is currently the most expensive (average of $335). 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 STL to CHS?

Find hourly flight availability from St. Louis to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

One of the essential ways to save on airfare from St. Louis to Charleston is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 16% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Charleston. Price data was last updated on August 17, 2025.

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

What’s the top layover airport for flights from St. Louis to Charleston?

Share of 1-stop round-trip flights from St. Louis to Charleston chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from St. Louis to Charleston on Cheapflights.

What’s the cheapest layover airport for flights from St. Louis to Charleston?

Average round-trip fare for 1-stop flights from St. Louis to Charleston, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Nashville (BNA) is the most affordable 1-stop option, with an average round-trip price of $326.

What’s the fastest layover option from St. Louis to Charleston?

Shortest average travel time for 1-stop one-way flights from St. Louis to Charleston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Nashville (BNA) have the shortest average one-way travel time for 1-stop routes: 4h 45m.

Which airport typically offers the quickest layover for flights from St. Louis to Charleston?

Average layover duration for 1-stop one-way flights from St. Louis to Charleston, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 09m.

Reviews of airlines servicing Charleston

Get insights into the airlines that provide service to Charleston. 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 Charleston. Reviews last updated August 18, 2025.
Read through reviews of airlines operating flights from St. Louis to Charleston, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Charleston. 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 St. Louis to Charleston flight route?

    Flights from Lambert-St Louis to Charleston have been viewed 6 times in the past calendar month.

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

    A quick flight from St. Louis to Charleston can take about 21h 30m. Spirit Airlines provides one of the quickest options available for as low as $180. Airlines will cover a distance of 705 mi.

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

    Cheapflights users have booked flights from St. Louis to Charleston round-trip from $226. Other airlines that can offer you cheap pricing are American Airlines, from $245, and Southwest, from $287. These flights start at 41% lower than the current average price 3 months from now.

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

    The cheapest flight price from St. Louis to Charleston is $207. On average you can expect to pay $375. The most popular route, (Lambert-St Louis - Charleston), can usually be booked for $180.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Charleston 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 St. Louis to Charleston?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Charleston (average of $217). Flying from St. Louis to Charleston in March is currently the most expensive (average of $335). 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 Charleston?

Book flights to Charleston if you plan to visit one of these locations
North Charleston
Summerville
Walterboro
Mount Pleasant
Isle of Palms
Santee
Edisto Beach

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Top 3 airlines flying from St. Louis to Charleston

Discover the top 3 airlines that operate flights from St. Louis to Charleston. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$226Average$400FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$245Average$375FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$287Average$404FlexibilityNo cancel feeOn-time63%

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