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Cheap flights from Austin to San Antonio from $117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to San Antonio departing on 9/26. 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

Find the cheapest flights from Austin to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
6:10 am - 11:40 amAUS  Austin Bergstrom-SAT San Antonio
5h 30m1 stop Houston Hobby
Southwest Logo
6:50 pm - 9:55 pmSAT  San Antonio-AUS Austin Bergstrom
3h 05m1 stop Houston Hobby
$234Southwest
Sat, Sep 12 - Mon, Sep 14
Southwest Logo
6:10 am - 11:40 amAUS  Austin Bergstrom-SAT San Antonio
5h 30m1 stop Houston Hobby
Southwest Logo
7:15 am - 5:20 pmSAT  San Antonio-AUS Austin Bergstrom
10h 05m2 stops Lambert-St Louis Chicago Midway
$240Southwest
Sat, Sep 26 - Sat, Oct 3
Southwest Logo
6:00 am - 11:40 amAUS  Austin Bergstrom-SAT San Antonio
5h 40m2 stops Dallas Love Field Houston Hobby
Southwest Logo
7:15 am - 5:20 pmSAT  San Antonio-AUS Austin Bergstrom
10h 05m2 stops Lambert-St Louis Chicago Midway
$245Southwest
Sat, Sep 26 - Sat, Oct 3
Southwest Logo
6:35 am - 10:10 amAUS  Austin Bergstrom-SAT San Antonio
3h 35m1 stop Dallas Love Field
Southwest Logo
8:10 am - 1:50 pmSAT  San Antonio-AUS Austin Bergstrom
5h 40m1 stop El Paso
$246Southwest
Tue, Sep 8 - Tue, Sep 15
Southwest Logo
6:35 am - 10:10 amAUS  Austin Bergstrom-SAT San Antonio
3h 35m1 stop Dallas Love Field
Southwest Logo
4:20 pm - 9:25 pmSAT  San Antonio-AUS Austin Bergstrom
5h 05m2 stops Houston Hobby Dallas Love Field
$252Southwest
Tue, Sep 8 - Tue, Sep 15
Southwest Logo
4:30 pm - 9:35 pmAUS  Austin Bergstrom-SAT San Antonio
5h 05m2 stops Houston Hobby Dallas Love Field
Southwest Logo
6:40 am - 12:15 pmSAT  San Antonio-AUS Austin Bergstrom
5h 35m2 stops Dallas Love Field Houston Hobby
$257Southwest
Wed, Sep 9 - Wed, Sep 16
Frontier Logo
6:15 am - 7:31 pmAUS  Austin Bergstrom-SAT San Antonio
13h 16m1 stop Denver Intl
Frontier Logo
8:20 pm - 7:29 pmSAT  San Antonio-AUS Austin Bergstrom
23h 09m1 stop Denver Intl
$263Frontier
Tue, Sep 8 - Fri, Sep 11
Southwest Logo
5:30 am - 8:20 amAUS  Austin Bergstrom-SAT San Antonio
2h 50m1 stop Dallas Love Field
Southwest Logo
5:40 pm - 9:30 pmSAT  San Antonio-AUS Austin Bergstrom
3h 50m1 stop Dallas Love Field
$265Southwest
Fri, Sep 25 - Mon, Sep 28
Frontier Logo
6:15 am - 7:31 pmAUS  Austin Bergstrom-SAT San Antonio
13h 16m1 stop Denver Intl
Frontier Logo
10:05 am - 5:48 pmSAT  San Antonio-AUS Austin Bergstrom
31h 43m2 stops Orlando Atlanta Hartsfield-Jackson
$268Frontier
Tue, Sep 8 - Fri, Sep 11
Southwest Logo
5:30 am - 8:20 amAUS  Austin Bergstrom-SAT San Antonio
2h 50m1 stop Dallas Love Field
Southwest Logo
6:00 am - 12:40 pmSAT  San Antonio-AUS Austin Bergstrom
6h 40m2 stops Houston Hobby Dallas Love Field
$270Southwest
Fri, Sep 25 - Mon, Sep 28

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Southwest flights from Austin to San Antonio

Our best Southwest deals on Austin to San Antonio flight tickets
Southwest
Sep 12
AUS6:10 amAustin Bergstrom
5h 30m
1 stop
SAT11:40 amSan Antonio
Sep 14
SAT6:50 pmSan Antonio
3h 05m
1 stop
AUS9:55 pmAustin Bergstrom
$234
Southwest
Sep 26
AUS6:10 amAustin Bergstrom
5h 30m
1 stop
SAT11:40 amSan Antonio
Oct 3
SAT7:15 amSan Antonio
10h 05m
2 stops
AUS5:20 pmAustin Bergstrom
$240
Southwest
Sep 26
AUS6:00 amAustin Bergstrom
5h 40m
2 stops
SAT11:40 amSan Antonio
Oct 3
SAT7:15 amSan Antonio
10h 05m
2 stops
AUS5:20 pmAustin Bergstrom
$245

United Airlines flights from Austin to San Antonio

Our best United Airlines deals on Austin to San Antonio flight tickets
United Airlines
Dec 15
AUS7:00 amAustin Bergstrom
14h 13m
1 stop
SAT9:13 pmSan Antonio
Dec 17
SAT5:15 amSan Antonio
7h 55m
1 stop
AUS1:10 pmAustin Bergstrom
$467
United Airlines
Sep 4
AUS5:44 pmAustin Bergstrom
19h 45m
1 stop
SAT1:29 pmSan Antonio
Sep 7
SAT9:30 amSan Antonio
10h 27m
1 stop
AUS7:57 pmAustin Bergstrom
$484

momondo Fare Finder

 
Customize your flight search to find flights from Austin 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 14, 2026.
Use the filters below to find and compare flights from Austin to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Sat 9/12

6:10 am-11:40 am

1 stop5h 30m

San Antonio

Mon 9/14

6:50 pm-9:55 pm

1 stop3h 05m

$234

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Sat 9/26

6:10 am-11:40 am

1 stop5h 30m

San Antonio

Sat 10/3

7:15 am-5:20 pm

2 stops10h 05m

$240

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Sat 9/26

6:00 am-11:40 am

2 stops5h 40m

San Antonio

Sat 10/3

7:15 am-5:20 pm

2 stops10h 05m

$245

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Tue 9/8

6:35 am-10:10 am

1 stop3h 35m

San Antonio

Tue 9/15

8:10 am-1:50 pm

1 stop5h 40m

$246

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Tue 9/8

6:35 am-10:10 am

1 stop3h 35m

San Antonio

Tue 9/15

4:20 pm-9:25 pm

2 stops5h 05m

$252

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Wed 9/9

4:30 pm-9:35 pm

2 stops5h 05m

San Antonio

Wed 9/16

6:40 am-12:15 pm

2 stops5h 35m

$257

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Tue 9/8

6:15 am-7:31 pm

1 stop13h 16m

San Antonio

Fri 9/11

8:20 pm-7:29 pm

1 stop23h 09m

$263
Quickest round-trip

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Fri 9/25

5:30 am-8:20 am

1 stop2h 50m

San Antonio

Mon 9/28

5:40 pm-9:30 pm

1 stop3h 50m

$265

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Tue 9/8

6:15 am-7:31 pm

1 stop13h 16m

San Antonio

Fri 9/11

10:05 am-5:48 pm

2 stops31h 43m

$268

AustinSan Antonio

AUS Austin Bergstrom - SAT San Antonio

AUSSAT

Austin Bergstrom

Fri 9/25

5:30 am-8:20 am

1 stop2h 50m

San Antonio

Mon 9/28

6:00 am-12:40 pm

2 stops6h 40m

$270

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Antonio from

How to get the cheapest flight ticket from Austin 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 airline that flies from Austin Bergstrom to San Antonio?

Southwest and Frontier are the most popular carriers operating from Austin Bergstrom to San Antonio

When to book flights from Austin to San Antonio

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

Cheap Austin to San Antonio (AUS to SAT) flight deals and tips

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

Fastest flight time

2h 45m

Direct flights

None
The fastest flight from Austin to San Antonio takes 2h 45m
There are no direct flights from Austin to San Antonio. There are no popular flight routes from Austin to San Antonio.
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Frequently asked questions about flying from Austin to San Antonio

  • How far is Austin Bergstrom to San Antonio by plane?

    There are 74.2 mi between Austin Bergstrom and San Antonio. Flights usually cover this in 2h 45m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Austin Bergstrom Airport to San Antonio Airport are updated daily.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom 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.

Traveling to a place near San Antonio?

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

Why use momondo?

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

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

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

Flights from Austin to San Antonio with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Austin and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Austin to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

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