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$165+ Cheap flights from San Antonio to Charleston (SAT - CHS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — CHS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Charleston are usually found in January or December, booked 9 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from San Antonio to Charleston

Cheapest flights from San Antonio to Charleston
Explore the most affordable flight options available from San Antonio to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Expedia deal was found by Cheapflights users on 12/15. 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.
Thu 12/182:39 pmSAT - CHS
1 stop5h 44mSpirit Airlines
Sun 12/2110:18 pmCHS - SAT
2 stops14h 32mSpirit Airlines
Deal found 12/15$533
This Expedia deal was found by Cheapflights users on 12/16. 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.
Fri 12/192:39 pmSAT - CHS
1 stop5h 44mSpirit Airlines
Mon 12/2210:18 pmCHS - SAT
2 stops14h 32mSpirit Airlines
Deal found 12/16$543
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/2312:45 pmSAT - CHS
2 stops33h 14mMultiple Airlines
Sun 1/42:59 pmCHS - SAT
1 stop21h 51mMultiple Airlines
Deal found 12/17$563
This Kiwi.com deal was found by Cheapflights users on 12/17. 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.
Sun 12/286:45 amSAT - CHS
2 stops25h 12mMultiple Airlines
Sun 1/42:59 pmCHS - SAT
1 stop21h 51mMultiple Airlines
Deal found 12/17$609
This Kiwi.com deal was found by Cheapflights users on 12/15. 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 12/1812:45 pmSAT - CHS
1 stop19h 12mMultiple Airlines
Sun 12/2110:18 pmCHS - SAT
1 stop26h 08mMultiple Airlines
Deal found 12/15$640
This Delta deal was found by Cheapflights users on 12/16. 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.
Sat 12/277:05 amSAT - CHS
1 stop5h 51mDelta
Sat 1/38:15 amCHS - SAT
1 stop5h 15mDelta
Deal found 12/16$642
This Southwest deal was found by Cheapflights users on 12/15. 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.
Sat 12/2712:25 pmSAT - CHS
2 stops7h 10mSouthwest
Sat 1/39:20 pmCHS - SAT
1 stop5h 00mSouthwest
Deal found 12/15$673
This American Airlines deal was found by Cheapflights users on 12/18. 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 12/276:00 amSAT - CHS
1 stop7h 48mAmerican Airlines
Sat 1/37:00 amCHS - SAT
1 stop8h 10mAmerican Airlines
Deal found 12/18$682
This Southwest deal was found by Cheapflights users on 12/18. 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.
Tue 12/305:50 amSAT - CHS
2 stops12h 30mSouthwest
Sat 1/39:20 pmCHS - SAT
1 stop5h 00mSouthwest
Deal found 12/18$687

Find flight deals from San Antonio to Charleston

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Charleston (CHS). 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$165
(Trip.com)

Popular in

April

Cheapest in

January

Average price

$372
Provider with most accurate pricing for San Antonio-Charleston flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Charleston flights.
Search Deals
From San Antonio to Charleston
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Charleston 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 December 18, 2025.
Use the filters below to find and compare flights from San Antonio to Charleston that are best for you.

Fly from

San Antonio

Fly to

Charleston

Route

Depart

Return

Price

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Thu 1/15

10:35 am-5:36 pm

1 stop6h 01m

Charleston

Thu 1/22

6:35 pm-9:40 am

1 stop16h 05m

$165

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Sat 1/10

6:30 am-8:38 am

1 stop25h 08m

Charleston

Thu 1/29

6:35 pm-9:40 am

1 stop16h 05m

$198

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Sat 1/10

10:35 am-4:10 pm

2 stops28h 35m

Charleston

Sat 1/17

6:35 pm-9:40 am

1 stop16h 05m

$216

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Sat 1/17

6:41 am-3:49 pm

1 stop8h 08m

Charleston

Mon 1/19

7:42 pm-11:58 pm

1 stop5h 16m

$308

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Wed 1/7

4:29 pm-11:55 pm

1 stop6h 26m

Charleston

Wed 1/28

12:53 pm-5:22 pm

1 stop5h 29m

$333

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Sun 1/25

6:30 am-11:48 am

1 stop4h 18m

Charleston

Wed 1/28

5:30 pm-10:54 pm

1 stop6h 24m

$334

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Fri 1/16

5:10 pm-11:58 pm

1 stop5h 48m

Charleston

Mon 1/19

5:41 pm-11:58 pm

1 stop7h 17m

$335

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Mon 4/6

10:26 am-10:37 pm

1 stop11h 11m

$194

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Sat 1/3

5:10 am-11:36 am

1 stop5h 26m

$244

San AntonioCharleston

SAT - CHS

SATCHS

San Antonio

Sun 1/4

5:10 am-10:30 am

1 stop4h 20m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 14 results
1
2

Compare providers for flights from San Antonio to Charleston

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 San Antonio to Charleston in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 San Antonio-Charleston flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Charleston flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Charleston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Charleston 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 San Antonio-Charleston 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 San Antonio to Charleston

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Charleston. Price data was last updated on December 12, 2025.

The price you pay for your flight from San Antonio to Charleston may vary depending on when you book. For the best chance of a lower fare, look to book 9 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from San Antonio to Charleston (average of $167). Flying from San Antonio to Charleston in March is currently the most expensive (average of $276). 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 SAT to CHS?

Find hourly flight availability from San Antonio to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from San Antonio to Charleston in the evening. By choosing this option you can save up to 32% on the cost of your flight, compared to a flight in the afternoon.

Reviews of airlines servicing Charleston

Get insights into the airlines that provide service to Charleston. 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 Charleston. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American Airlines from San Antonio to Charleston. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,055 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,190 reviews
Southwest
7.9
Good
4,250 reviews

Crew

8.6

Food

7.0

Overall

7.9

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Charleston. 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 San Antonio to Charleston?

    There are many flights that can get you from San Antonio to Charleston in 6h 01m. Fly via Spirit Airlines to get the fastest option. The distance from San Antonio to Charleston is about 1111 mi.

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

    Our cheapest airline available from San Antonio to Charleston is Spirit Airlines. Our recent data shows that you can find tickets from as low as $201 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $290 and $306 round-trip. These flights start at 52% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $128. Southwest flights start at $141 while deals on Delta start at $148 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Charleston (average of $167). Flying from San Antonio to Charleston in March is currently the most expensive (average of $276). 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
North Charleston
Santee
Summerville
Walterboro
Isle of Palms
Mount Pleasant
Edisto Beach

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Top 4 airlines flying from San Antonio to Charleston

Discover the top 4 airlines that operate flights from San Antonio to Charleston. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$201Average$285FlexibilityNo cancel feeOn-time65%
DeltaCheapest$290Average$407FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$306Average$386FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$310Average$450FlexibilityNo cancel feeOn-time63%

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