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$110+ Cheap flights from Charleston to San Antonio (CHS - SAT)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SAT
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find cheap flights from Charleston to San Antonio with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Charleston to San Antonio are usually found in September or May, booked 64 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from Charleston to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) to San Antonio (SAT). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$169
(Expedia)

One-way from

$110
(Orbitz)

Popular in

December

Cheapest in

September

Average price

$482
Provider with most accurate pricing for Charleston-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charleston-San Antonio flights.
Search Deals
From Charleston to San Antonio
Search Deals
One-way flight from Charleston to San Antonio
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Charleston to San Antonio

Cheapest flights from Charleston to San Antonio
Explore the most affordable flight options available from Charleston to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Expedia deal was found by Cheapflights users on 10/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/26:50 amCHS - SAT
1 stop12h 42mSpirit Airlines
Fri 12/51:55 pmSAT - CHS
1 stop5h 59mSpirit Airlines
Deal found 10/27$169
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:59 pmCHS - SAT
1 stop29h 22mMultiple Airlines
Fri 12/55:46 pmSAT - CHS
2 stops16h 14mMultiple Airlines
Deal found 10/27$202
This Mytrip deal was found by Cheapflights users on 10/26. 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 12/59:49 pmCHS - SAT
2 stops16h 29mSpirit Airlines
Sun 12/71:55 pmSAT - CHS
1 stop5h 59mSpirit Airlines
Deal found 10/26$204
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Tue 11/182:59 pmCHS - SAT
1 stop20h 04mMultiple Airlines
Sat 11/227:04 pmSAT - CHS
1 stop12h 33mMultiple Airlines
Deal found 10/26$212
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 11/196:11 pmCHS - SAT
2 stops26h 27mMultiple Airlines
Sat 11/224:54 pmSAT - CHS
1 stop14h 43mMultiple Airlines
Deal found 10/26$222
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/206:13 pmCHS - SAT
2 stops26h 08mMultiple Airlines
Sat 11/227:04 pmSAT - CHS
1 stop12h 33mMultiple Airlines
Deal found 10/26$255
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Tue 11/116:11 pmCHS - SAT
2 stops25h 21mSpirit Airlines
Fri 11/147:37 pmSAT - CHS
2 stops20h 29mSpirit Airlines
Deal found 10/25$263
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/147:00 amCHS - SAT
1 stop12h 32mSpirit Airlines
Sun 11/167:37 pmSAT - CHS
2 stops20h 29mSpirit Airlines
Deal found 10/26$264
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:59 pmCHS - SAT
1 stop20h 04mMultiple Airlines
Sat 11/156:05 pmSAT - CHS
1 stop13h 32mMultiple Airlines
Deal found 10/27$265

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charleston to San Antonio 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 October 28, 2025.
Use the filters below to find and compare flights from Charleston to San Antonio that are best for you.

Fly from

Charleston

Fly to

San Antonio

Route

Depart

Return

Price

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Fri 12/5

9:49 pm-1:18 pm

2 stops16h 29m

San Antonio

Sun 12/7

1:55 pm-8:54 pm

1 stop5h 59m

$204

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Wed 11/19

6:11 pm-7:38 pm

2 stops26h 27m

San Antonio

Sat 11/22

4:54 pm-8:37 am

1 stop14h 43m

$222

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Sun 1/11

5:40 pm-3:11 pm

1 stop22h 31m

San Antonio

Thu 1/15

7:56 pm-8:43 am

2 stops11h 47m

$226

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 11/20

2:59 pm-7:21 pm

1 stop29h 22m

San Antonio

Sat 11/22

7:04 pm-8:37 am

1 stop12h 33m

$255

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 11/11

6:11 pm-6:32 pm

2 stops25h 21m

San Antonio

Fri 11/14

7:37 pm-5:06 pm

2 stops20h 29m

$263

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Fri 11/14

7:00 am-6:32 pm

1 stop12h 32m

San Antonio

Sun 11/16

7:37 pm-5:06 pm

2 stops20h 29m

$264

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 11/11

2:59 pm-10:03 am

1 stop20h 04m

San Antonio

Sat 11/15

6:05 pm-8:37 am

1 stop13h 32m

$265

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 11/11

2:59 pm-10:03 am

1 stop20h 04m

San Antonio

Fri 11/14

7:37 pm-5:06 pm

2 stops20h 29m

$277

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 12/2

6:15 pm-7:21 pm

2 stops26h 06m

San Antonio

Fri 12/5

2:13 pm-11:00 am

3 stops19h 47m

$279

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 1/15

7:00 am-11:05 am

1 stop5h 05m

San Antonio

Tue 1/20

6:45 am-12:50 pm

1 stop5h 05m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 20 results
1
2

Compare providers for flights from Charleston to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Charleston to San Antonio in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Charleston-San Antonio flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Charleston-San Antonio flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Charleston-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Charleston-San Antonio flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Charleston-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Charleston to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio 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 San Antonio

How far ahead should I book a flight from Charleston to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Charleston to San Antonio. Price data was last updated on October 24, 2025.

The best time to book flights from Charleston to San Antonio is 64 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Charleston to San Antonio?

Currently, May is the cheapest month in which you can book a flight from Charleston to San Antonio (average of $168). Flying from Charleston to San Antonio in February is currently the most expensive (average of $272). 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 SAT?

Find hourly flight availability from Charleston to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Charleston to San Antonio at noon. Doing so could potentially save you 44% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated October 28, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Charleston to San Antonio 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
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
7.9
Good
7,994 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
United Airlines
7.4
Good
9,001 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
11,032 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Crew

8.6

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 San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Charleston to San Antonio?

    A quick flight from Charleston to San Antonio can take about 16h 29m. Spirit Airlines provides one of the quickest options available for as low as $204. Airlines will cover a distance of 1111 mi.

  • What are the cheapest airlines flying from Charleston to San Antonio round-trip?

    Cheapflights users have booked flights from Charleston to San Antonio round-trip from $278. Other airlines that can offer you cheap pricing are Southwest, from $294, and American Airlines, from $311. You may be able to fly from Charleston to San Antonio for 33% less than the average price by searching for these airlines.

  • Can I find deals for flights from Charleston to San Antonio that include hotel bookings?

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

  • How can I find direct flights from Charleston to San Antonio?

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

  • Can I find deals for business class flights from Charleston to San Antonio?

    Yes. Cheapflights offers flight deals from Charleston to San Antonio 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 San Antonio?

    Currently, May is the cheapest month in which you can book a flight from Charleston to San Antonio (average of $168). Flying from Charleston to San Antonio in February is currently the most expensive (average of $272). 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 San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville

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Top 4 airlines flying from Charleston to San Antonio

Discover the top 4 airlines that operate flights from Charleston to San Antonio. 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$278Average$390FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$294Average$446FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$311Average$424FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$412FlexibilityNo cancel feeOn-time69%

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