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$122+ 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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — SAT
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Charleston to San Antonio are usually found in May or July, 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 June 12, 2025.

Round-trip from

$213
(Mytrip)

One-way from

$122
(CheapOair)

Popular in

November

Cheapest in

May

Average price

$412
From Charleston to San Antonio
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One-way flight from Charleston to San Antonio
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Highest demand for flights based on searches. 11% potential increase in price ($55 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:26 pmCHS - SAT
1 stop22h 52mSpirit Airlines
Sun 9/216:13 pmSAT - CHS
1 stop23h 08mSpirit Airlines
Deal found 6/11$213
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/72:40 pmCHS - SAT
1 stop8h 06mAmerican Airlines
Mon 8/1110:16 amSAT - CHS
1 stop10h 46mAmerican Airlines
Deal found 6/10$283
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:10 amCHS - SAT
1 stop4h 40mSouthwest
Mon 8/1111:40 amSAT - CHS
2 stops8h 35mSouthwest
Deal found 6/10$290
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:15 amCHS - SAT
1 stop5h 25mDelta
Sat 8/163:30 pmSAT - CHS
1 stop7h 20mDelta
Deal found 6/11$301
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.
Wed 7/162:48 pmCHS - SAT
2 stops26h 45mMultiple Airlines
Fri 7/187:10 amSAT - CHS
1 stop6h 35mMultiple Airlines
Deal found 6/12$314
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1211:20 amCHS - SAT
2 stops10h 07mUnited Airlines
Sat 8/165:30 amSAT - CHS
2 stops7h 55mUnited Airlines
Deal found 6/9$391
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/76:03 pmCHS - SAT
2 stops21h 08mAlaska Airlines
Sun 8/1010:08 amSAT - CHS
2 stops29h 52mAlaska Airlines
Deal found 6/12$934

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 June 12, 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 7/11

9:38 am-10:42 pm

1 stop14h 04m

San Antonio

Fri 7/18

7:10 am-2:45 pm

1 stop6h 35m

$246

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 8/7

2:40 pm-9:46 pm

1 stop8h 06m

San Antonio

Mon 8/11

10:16 am-10:02 pm

1 stop10h 46m

$283

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 8/7

6:10 am-9:50 am

1 stop4h 40m

San Antonio

Mon 8/11

11:40 am-9:15 pm

2 stops8h 35m

$290

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 8/12

5:15 am-9:40 am

1 stop5h 25m

San Antonio

Sat 8/16

3:30 pm-11:50 pm

1 stop7h 20m

$301

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Wed 7/16

2:48 pm-4:33 pm

2 stops26h 45m

San Antonio

Fri 7/18

7:10 am-2:45 pm

1 stop6h 35m

$314

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 8/12

11:20 am-8:27 pm

2 stops10h 07m

San Antonio

Sat 8/16

5:30 am-2:25 pm

2 stops7h 55m

$391

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 8/7

6:03 pm-2:11 pm

2 stops21h 08m

San Antonio

Sun 8/10

10:08 am-5:00 pm

2 stops29h 52m

$934

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Sat 7/5

9:42 am-11:09 pm

1 stop14h 27m

$122

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 7/1

2:43 pm-10:12 pm

1 stop8h 29m

$159

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Mon 6/23

9:31 pm-2:02 pm

1 stop17h 31m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 13 results
1
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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 June 9, 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 June 12, 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.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $213. Other airlines that can offer you cheap pricing are American Airlines, from $283, and Southwest, from $290. You may be able to fly from Charleston to San Antonio for 48% 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 $122 on Spirit Airlines. Other airlines that offer cheap prices include American Airlines from $159 and Delta from $204 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 Charleston?

Book flights to Charleston if you plan to visit one of these locations
New Braunfels

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Alternative routes for Charleston to San Antonio

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Charleston to San Antonio

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$198Average$412FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$202Average$246FlexibilityNo cancel feeOn-time65%
DeltaCheapest$291Average$380FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$300Average$435FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$300Average$431FlexibilityNo cancel feeOn-time71%

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