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$113+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — STL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 Friday 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 July 29, 2025.

Round-trip from

$227
(Delta)

One-way from

$113
(American Airlines)

Popular in

February

Cheapest in

August

Average price

$379

Good round-trip deal

$299 or less

Good one-way deal

$233 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 ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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 8/206:59 pmCHS - STL
1 stop4h 03mDelta
Sat 8/236:00 amSTL - CHS
1 stop4h 50mDelta
Deal found 7/28$227
This American Airlines deal was found by Cheapflights users on 7/29. 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 10/46:27 amCHS - STL
2 stops8h 04mAmerican Airlines
Tue 10/710:36 amSTL - CHS
1 stop5h 59mAmerican Airlines
Deal found 7/29$232
This Southwest deal was found by Cheapflights users on 7/28. 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.
Thu 9/2511:25 amCHS - STL
Nonstop2h 05mSouthwest
Mon 9/297:50 amSTL - CHS
Nonstop1h 55mSouthwest
Deal found 7/28$251
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/2011:37 amCHS - STL
1 stop5h 07mUnited Airlines
Sat 8/236:35 amSTL - CHS
2 stops6h 58mUnited Airlines
Deal found 7/28$302
This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:53 amCHS - STL
1 stop23h 59mSpirit Airlines
Thu 8/142:30 pmSTL - CHS
1 stop18h 03mSpirit Airlines
Deal found 7/29$337
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/228:17 pmCHS - STL
3 stops40h 53mMultiple Airlines
Sun 8/242:30 pmSTL - CHS
2 stops19h 00mMultiple Airlines
Deal found 7/27$432

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 July 29, 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

Wed 8/20

6:59 pm-10:02 pm

1 stop4h 03m

Lambert-St Louis

Sat 8/23

6:00 am-11:50 am

1 stop4h 50m

$227

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Sat 10/4

6:27 am-1:31 pm

2 stops8h 04m

Lambert-St Louis

Tue 10/7

10:36 am-5:35 pm

1 stop5h 59m

$232

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 9/25

11:25 am-12:30 pm

Nonstop2h 05m

Lambert-St Louis

Mon 9/29

7:50 am-10:45 am

Nonstop1h 55m

$251

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Wed 8/20

11:37 am-3:44 pm

1 stop5h 07m

Lambert-St Louis

Sat 8/23

6:35 am-2:33 pm

2 stops6h 58m

$302

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 8/7

10:53 am-9:52 am

1 stop23h 59m

Lambert-St Louis

Thu 8/14

2:30 pm-9:33 am

1 stop18h 03m

$337

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Fri 8/22

8:17 pm-12:10 pm

3 stops40h 53m

Lambert-St Louis

Sun 8/24

2:30 pm-7:12 pm

3 stops27h 42m

$406

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Mon 10/27

7:30 am-1:44 pm

1 stop7h 14m

$113

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Sat 8/30

6:20 am-8:54 am

1 stop3h 34m

$114

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Mon 10/13

10:30 am-9:40 am

1 stop24h 10m

$117

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Sat 10/18

8:05 am-5:15 pm

2 stops10h 10m

$124

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 12 results
1
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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 July 25, 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 July 29, 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 9% on your trip compared to booking a flight in the morning.

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 December 16, 2024.

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 July 29, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United 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
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,899 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 6 times in the past calendar month.

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

    Our cheapest airline available from Charleston to St. Louis is Delta. Our recent data shows that you can find tickets from as low as $227 on this airline. Additional options worth looking into are American Airlines and Southwest, starting at $232 and $251 round-trip. You may be able to fly from Charleston to St. Louis for 42% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Charleston to St. Louis one-way?

    One-way options have recently been found by users for as low as $113 on American Airlines. Other airlines that offer cheap prices include Delta from $114 and Spirit Airlines from $117 one-way.

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

    While on average a flight from Charleston to St. Louis is generally $343, our data shows the cheapest flight currently is $198. When looking at the most popular route, (Charleston - Lambert-St Louis), you can expect to pay $227 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
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Festus
Farmington

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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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$172Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$287Average$358FlexibilityNo cancel feeOn-time63%
DeltaCheapest$324Average$399FlexibilityNo cancel feeOn-timeN/A

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