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$97+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — STL
Jun 20 — Jun 271
Fri 6/20
Fri 6/27
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to Lambert-St Louis are usually found in August or July, booked 80 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

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 June 15, 2025.

Round-trip from

$200
(Mytrip)

One-way from

$97
(Mytrip)

Popular in

February

Cheapest in

August

Average price

$323

Good round-trip deal

$287 or less

Good one-way deal

$271 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. 14% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 15, 2025.

This Mytrip deal was found by Cheapflights users on 6/13. 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.
Thu 7/2410:53 amCHS - STL
1 stop23h 59mSpirit Airlines
Sun 7/2710:47 amSTL - CHS
1 stop22h 06mSpirit Airlines
Deal found 6/13$200
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Mon 9/2211:59 amCHS - STL
1 stop12h 49mAmerican Airlines
Mon 9/295:55 amSTL - CHS
1 stop10h 49mAmerican Airlines
Deal found 6/14$277
This Delta deal was found by Cheapflights users on 6/12. 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.
Tue 7/225:15 amCHS - STL
1 stop5h 26mDelta
Wed 7/237:00 amSTL - CHS
1 stop5h 56mDelta
Deal found 6/12$287
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/114:30 pmCHS - STL
1 stop18h 10mMultiple Airlines
Sun 7/1310:47 amSTL - CHS
1 stop22h 06mMultiple Airlines
Deal found 6/12$288
This Southwest deal was found by Cheapflights users on 6/13. 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.
Mon 9/225:30 amCHS - STL
1 stop4h 10mSouthwest
Mon 9/297:50 amSTL - CHS
Nonstop1h 55mSouthwest
Deal found 6/13$297
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Fri 7/1111:25 amCHS - STL
1 stop5h 22mUnited Airlines
Mon 7/145:00 amSTL - CHS
2 stops8h 25mUnited Airlines
Deal found 6/13$389

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 June 15, 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

Thu 7/24

10:53 am-9:52 am

1 stop23h 59m

Lambert-St Louis

Sun 7/27

10:47 am-9:53 am

1 stop22h 06m

$200

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Mon 9/22

11:59 am-11:48 pm

1 stop12h 49m

Lambert-St Louis

Mon 9/29

5:55 am-5:44 pm

1 stop10h 49m

$277

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Tue 7/22

5:15 am-9:41 am

1 stop5h 26m

Lambert-St Louis

Wed 7/23

7:00 am-1:56 pm

1 stop5h 56m

$287

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Fri 7/11

4:30 pm-9:40 am

1 stop18h 10m

Lambert-St Louis

Sun 7/13

10:47 am-9:53 am

1 stop22h 06m

$288

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Mon 9/22

5:30 am-8:40 am

1 stop4h 10m

Lambert-St Louis

Mon 9/29

7:50 am-10:45 am

Nonstop1h 55m

$297

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Fri 7/11

11:25 am-3:47 pm

1 stop5h 22m

Lambert-St Louis

Mon 7/14

5:00 am-2:25 pm

2 stops8h 25m

$389

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 9/4

10:28 am-7:49 am

1 stop22h 21m

$97

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Mon 8/25

11:25 am-12:30 pm

Nonstop2h 05m

$144

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Mon 9/15

11:59 am-8:25 pm

1 stop9h 26m

$145

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Tue 8/26

6:20 am-9:15 am

1 stop3h 55m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 12 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 June 13, 2025.

Booking 80 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 June 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Charleston to St. Louis in the afternoon. If you’re flexible enough to do this you can expect to save up to 43% 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 evenings 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.

Weekly flight availability from Charleston to St. Louis

Explore weekly flight availability from Charleston to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 15, 2025.

The most flights from CHS to STL are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 June 15, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Charleston to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,285 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,796 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,060 reviews
Southwest
8.0
Very good
4,285 reviews

Crew

8.6

Boarding

8.2

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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.

  • What airports do I use to fly from Charleston to St. Louis?

    Booking a flight from Charleston (CHS) to Lambert-St Louis (STL) is your only option if you wish to fly from Charleston to St. Louis. On a typical day, there is 1 flight from Charleston to Lambert-St Louis, all of which are around 2h 05m for a nonstop flight. You can also purchase a plane ticket from 3 airlines when you book a flight from Charleston to St. Louis.

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

    Flights from Charleston to Lambert-St Louis have been viewed 5 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $200 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $277 and $287 round-trip. You may be able to fly from Charleston to St. Louis for 46% 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 $97 on Spirit Airlines. Other airlines that offer cheap prices include Southwest from $144 and American Airlines from $145 one-way.

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

    While on average a flight from Charleston to St. Louis is generally $362, our data shows the cheapest flight currently is $148. When looking at the most popular route, (Charleston - Lambert-St Louis), you can expect to pay $200 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 Charleston?

Book flights to Charleston if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Festus
Alton
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 June 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$172Average$350FlexibilityNo cancel feeOn-time71%
DeltaCheapest$232Average$369FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$314Average$372FlexibilityNo cancel feeOn-time63%

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