Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Charleston to San Antonio from $125

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Charleston to San Antonio departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Charleston to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:13 pm - 9:10 am-
19h 57m
Multiple Airlines Logo
10:05 am - 8:38 am-
21h 33m
$326Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Multiple Airlines Logo
2:13 pm - 9:10 am-
19h 57m
Multiple Airlines Logo
12:38 pm - 12:31 pm-
22h 53m
$327Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
Delta Logo
6:15 am - 9:48 am-
4h 33m
Delta Logo
5:20 am - 1:11 pm-
6h 51m
$339Delta
Thu, Aug 27 - Thu, Sep 3
Multiple Airlines Logo
3:27 pm - 1:48 pm-
23h 21m
Multiple Airlines Logo
10:05 am - 8:38 am-
21h 33m
$344Multiple Airlines
Fri, Sep 11 - Mon, Sep 14
American Airlines Logo
5:31 pm - 9:38 pm-
5h 07m
American Airlines Logo
12:41 pm - 10:48 pm-
9h 07m
$353American Airlines
Sat, Sep 12 - Tue, Sep 15
Delta Logo
4:30 pm - 10:27 pm-
6h 57m
Delta Logo
4:25 pm - 11:56 pm-
6h 31m
$362Delta
Fri, Dec 25 - Tue, Dec 29
American Airlines Logo
3:32 pm - 8:57 pm-
6h 25m
American Airlines Logo
4:27 pm - 10:48 pm-
5h 21m
$362American Airlines
Tue, Sep 8 - Fri, Sep 11
Delta Logo
6:26 pm - 12:08 am-
6h 42m
Delta Logo
8:00 am - 4:30 pm-
7h 30m
$362Delta
Fri, Sep 11 - Tue, Sep 15
Southwest Logo
6:35 am - 2:15 pm-
8h 40m
Southwest Logo
5:35 am - 3:25 pm-
8h 50m
$372Southwest
Fri, Sep 11 - Mon, Sep 14
Southwest Logo
6:45 am - 1:50 pm-
8h 05m
Southwest Logo
9:25 am - 7:20 pm-
8h 55m
$374Southwest
Sat, Sep 12 - Tue, Sep 15

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Southwest flights from Charleston to San Antonio

Our best Southwest deals on Charleston to San Antonio flight tickets
Southwest
Sep 11
CHS6:35 amCharleston
8h 40m
2 stops
SAT2:15 pmSan Antonio
Sep 14
SAT5:35 amSan Antonio
8h 50m
2 stops
CHS3:25 pmCharleston
$372
Southwest
Sep 10
CHS6:35 amCharleston
7h 15m
2 stops
SAT12:50 pmSan Antonio
Sep 14
SAT12:20 pmSan Antonio
8h 10m
2 stops
CHS9:30 pmCharleston
$374
Southwest
Sep 11
CHS6:35 amCharleston
4h 50m
1 stop
SAT10:25 amSan Antonio
Sep 20
SAT7:15 amSan Antonio
4h 50m
1 stop
CHS1:05 pmCharleston
$388

United Airlines flights from Charleston to San Antonio

Our best United Airlines deals on Charleston to San Antonio flight tickets
United Airlines
Sep 12
CHS11:37 amCharleston
9h 16m
2 stops
SAT7:53 pmSan Antonio
Sep 15
SAT6:30 amSan Antonio
6h 28m
1 stop
CHS1:58 pmCharleston
$369
United Airlines
Sep 11
CHS6:30 amCharleston
10h 13m
2 stops
SAT3:43 pmSan Antonio
Sep 13
SAT4:12 pmSan Antonio
4h 59m
1 stop
CHS10:11 pmCharleston
$393
United Airlines
Sep 9
CHS7:00 amCharleston
9h 10m
1 stop
SAT3:10 pmSan Antonio
Sep 15
SAT9:30 amSan Antonio
5h 37m
1 stop
CHS4:07 pmCharleston
$454

momondo 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, momondo users made 832,500 searches. Data last updated August 4, 2026.
Use the filters below to find and compare flights from Charleston to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 9/10

2:13 pm-9:10 am

1 stop19h 57m

San Antonio

Mon 9/14

10:05 am-8:38 am

1 stop21h 33m

$326

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 9/10

2:13 pm-9:10 am

1 stop19h 57m

San Antonio

Mon 9/14

12:38 pm-12:31 pm

2 stops22h 53m

$327
Quickest round-trip

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Thu 8/27

6:15 am-9:48 am

1 stop4h 33m

San Antonio

Thu 9/3

5:20 am-1:11 pm

1 stop6h 51m

$339

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Fri 9/11

3:27 pm-1:48 pm

2 stops23h 21m

San Antonio

Mon 9/14

10:05 am-8:38 am

1 stop21h 33m

$344

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Sat 9/12

5:31 pm-9:38 pm

1 stop5h 07m

San Antonio

Tue 9/15

12:41 pm-10:48 pm

1 stop9h 07m

$353

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Fri 12/25

4:30 pm-10:27 pm

1 stop6h 57m

San Antonio

Tue 12/29

4:25 pm-11:56 pm

1 stop6h 31m

$362

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Tue 9/8

3:32 pm-8:57 pm

1 stop6h 25m

San Antonio

Fri 9/11

4:27 pm-10:48 pm

1 stop5h 21m

$362

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Fri 9/11

6:26 pm-12:08 am

1 stop6h 42m

San Antonio

Tue 9/15

8:00 am-4:30 pm

1 stop7h 30m

$362

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Fri 9/11

6:35 am-2:15 pm

2 stops8h 40m

San Antonio

Mon 9/14

5:35 am-3:25 pm

2 stops8h 50m

$372

CharlestonSan Antonio

CHS - SAT

CHSSAT

Charleston

Sat 9/12

6:45 am-1:50 pm

2 stops8h 05m

San Antonio

Tue 9/15

9:25 am-7:20 pm

2 stops8h 55m

$374

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Antonio from

How to get the cheapest flight ticket from Charleston to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of January, then book flights to San Antonio from Charleston during February instead. Flights to San Antonio in February, while not as cheap as those in January, still average around $377.

How have Charleston to San Antonio flight prices changed over time?

As of August 2026, prices for Charleston to San Antonio flights are approximately 211% more expensive when compared to flights at the same time last year.

When to book flights from Charleston to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Charleston to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Charleston to San Antonio (CHS to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Charleston to San Antonio

Fastest flight time

5h 13m

Direct flights

None
The fastest flight from Charleston to San Antonio takes 5h 13m
There are no direct flights from Charleston to San Antonio. There are no popular flight routes from Charleston to San Antonio.
Search flight deals

Frequently asked questions about flying from Charleston to San Antonio

  • How far is Charleston to San Antonio by plane?

    The distance between Charleston and San Antonio is about 1120.0 mi. Typically, this will take 5h 13m by plane in normal conditions.

  • When did momondo last update prices for flights from Charleston Airport to San Antonio Airport?

    Prices for flights from Charleston Airport to San Antonio Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Charleston Airport to San Antonio Airport?

  • How old do you have to be to fly from Charleston Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Charleston Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Charleston to San Antonio?

Best airlines flying from Charleston to San Antonio

Compare and see reviews for airlines that fly from Charleston to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $311Free CancellationRating
7.8
8,481 reviews
Search Delta flights
SouthwestPriceFrom $327Free CancellationRating
8.0
4,222 reviews
Search Southwest flights
American AirlinesPriceFrom $329Free CancellationRating
7.1
11,848 reviews
Search American Airlines flights

  • Southwest Flights From Charleston to San Antonio

    Across 1 Southwest flight from Charleston to San Antonio this week, the average price was $446, with the best Southwest deals starting from $327 round-trip. 4,222 users have rated Southwest on momondo, with an average score of 8.0/10.

Traveling to a place near San Antonio?

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

Why use momondo?

Why should I use momondo to find a flight deal from Charleston to San Antonio?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Charleston to San Antonio. momondo saves you time and could save you money on your trip.

Can I find flights from Charleston to San Antonio with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Antonio from Charleston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Charleston to San Antonio?

Once all potential Charleston to San Antonio flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Charleston to San Antonio right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Charleston to San Antonio flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 9/3
Thu 9/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States