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$97+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SAT
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to San Antonio are usually found in May or August, 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 septiembre 11, 2025.

Round-trip from

$189
(Orbitz)

One-way from

$97
(Southwest)

Popular in

April

Cheapest in

May

Average price

$406
From Charleston to San Antonio
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One-way flight from Charleston to San Antonio
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 septiembre 11, 2025.

This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/212:08 pmCHS - SAT
1 stop7h 04mSpirit Airlines
dom. 10/57:35 pmSAT - CHS
1 stop12h 31mSpirit Airlines
Deal found 9/10$189
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/2410:11 amCHS - SAT
1 stop9h 19mSpirit Airlines
dom. 10/267:35 pmSAT - CHS
1 stop12h 26mSpirit Airlines
Deal found 9/11$199
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:11 amCHS - SAT
1 stop9h 19mSpirit Airlines
dom. 10/127:35 pmSAT - CHS
1 stop12h 31mSpirit Airlines
Deal found 9/10$214
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/145:40 pmCHS - SAT
1 stop22h 31mSpirit Airlines
mar. 11/184:16 pmSAT - CHS
1 stop17h 29mSpirit Airlines
Deal found 9/10$223
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/510:11 amCHS - SAT
1 stop9h 19mSpirit Airlines
dom. 10/127:35 pmSAT - CHS
1 stop12h 31mSpirit Airlines
Deal found 9/10$226
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/187:00 amCHS - SAT
1 stop7h 15mUnited Airlines
mié. 10/226:00 amSAT - CHS
1 stop9h 40mUnited Airlines
Deal found 9/11$229
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/145:40 pmCHS - SAT
1 stop22h 31mSpirit Airlines
dom. 11/164:16 pmSAT - CHS
1 stop17h 29mSpirit Airlines
Deal found 9/10$230
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.
sáb. 10/112:26 pmCHS - SAT
1 stop6h 17mAmerican Airlines
sáb. 10/185:00 amSAT - CHS
2 stops7h 23mAmerican Airlines
Deal found 9/11$234
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. 9/302:20 pmCHS - SAT
1 stop9h 16mAmerican Airlines
jue. 10/26:35 amSAT - CHS
1 stop5h 36mAmerican Airlines
Deal found 9/11$243
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
vie. 10/310:10 amCHS - SAT
1 stop9h 02mMultiple Airlines
lun. 10/64:55 pmSAT - CHS
1 stop14h 42mMultiple Airlines
Deal found 9/9$245
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/135:40 pmCHS - SAT
1 stop22h 31mMultiple Airlines
lun. 11/176:00 amSAT - CHS
1 stop25h 37mMultiple Airlines
Deal found 9/10$253
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/212:08 pmCHS - SAT
2 stops29h 27mMultiple Airlines
dom. 10/57:35 pmSAT - CHS
1 stop12h 31mMultiple Airlines
Deal found 9/10$255

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 septiembre 11, 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

jue. 10/16

10:11 am-6:30 pm

1 stop9h 19m

San Antonio

dom. 10/19

7:35 pm-9:06 am

1 stop12h 31m

$199

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

jue. 10/9

10:11 am-6:30 pm

1 stop9h 19m

San Antonio

dom. 10/12

7:35 pm-9:06 am

1 stop12h 31m

$214

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

sáb. 11/1

6:15 am-12:08 pm

1 stop6h 53m

San Antonio

mié. 11/5

7:07 am-3:09 pm

1 stop7h 02m

$229

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

sáb. 10/18

7:00 am-1:15 pm

1 stop7h 15m

San Antonio

mié. 10/22

5:30 am-4:40 pm

2 stops10h 10m

$234

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

mar. 9/30

2:20 pm-10:36 pm

1 stop9h 16m

San Antonio

jue. 10/2

6:35 am-1:11 pm

1 stop5h 36m

$243

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

jue. 10/16

5:00 am-9:21 am

1 stop5h 21m

San Antonio

mar. 10/21

3:02 pm-11:08 pm

1 stop7h 06m

$243

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

lun. 12/22

8:02 pm-12:37 am

1 stop5h 35m

San Antonio

jue. 12/25

1:35 pm-9:49 pm

1 stop7h 14m

$257

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

jue. 10/23

5:20 am-9:00 am

1 stop4h 40m

San Antonio

mar. 10/28

6:45 am-2:50 pm

2 stops7h 05m

$263

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

vie. 10/3

5:20 pm-10:35 pm

1 stop6h 15m

San Antonio

lun. 10/6

2:25 pm-10:15 pm

1 stop6h 50m

$272

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

vie. 10/3

10:32 am-3:53 pm

1 stop6h 21m

San Antonio

lun. 10/6

4:37 pm-11:52 pm

1 stop6h 15m

$272

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 results
1
2
3

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 August 29, 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, August is the cheapest month in which you can book a flight from Charleston to San Antonio (average of $295). Flying from Charleston to San Antonio in March is currently the most expensive (average of $376). 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 septiembre 11, 2025.

It’s typically best to fly out from Charleston to San Antonio at noon. Doing so could potentially save you 45% 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 septiembre 11, 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
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

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

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Comfort

8.0

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 6h 53m. Spirit Airlines provides one of the quickest options available for as low as $229. Airlines will cover a distance of 1111 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $284. 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 31% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Charleston to San Antonio one-way?

    One-way options have recently been found by users for as low as $97 on Southwest. Other airlines that offer cheap prices include Spirit Airlines from $113 and Delta from $129 one-way.

  • 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, August is the cheapest month in which you can book a flight from Charleston to San Antonio (average of $295). Flying from Charleston to San Antonio in March is currently the most expensive (average of $376). 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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Alternative routes for Charleston to San Antonio

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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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$284Average$380FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$294Average$424FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$311Average$432FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$412FlexibilityNo cancel feeOn-time69%

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