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Cheap flights from Austin to San Antonio from $127

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 7/15. 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

Find the cheapest flights from Austin to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:30 am - 6:44 pm
AUS
-
SAT
12h 14m
1 stop
Frontier Logo
7:39 pm - 12:07 am
SAT
-
AUS
28h 28m
1 stop
$235Frontier
Tue, Jul 14 - Tue, Jul 21
Frontier Logo
6:30 am - 6:44 pm
AUS
-
SAT
12h 14m
1 stop
Frontier Logo
9:32 pm - 12:07 am
SAT
-
AUS
26h 35m
2 stops
$300Frontier
Tue, Jul 14 - Tue, Jul 21
Frontier Logo
9:58 am - 6:56 pm
AUS
-
SAT
8h 58m
1 stop
Frontier Logo
7:51 pm - 9:13 am
SAT
-
AUS
13h 22m
1 stop
$314Frontier
Tue, Aug 25 - Fri, Aug 28
Frontier Logo
6:30 am - 6:44 pm
AUS
-
SAT
12h 14m
1 stop
Frontier Logo
7:39 pm - 7:27 pm
SAT
-
AUS
23h 48m
1 stop
$325Frontier
Wed, Jul 22 - Wed, Jul 29
Frontier Logo
6:30 am - 6:44 pm
AUS
-
SAT
12h 14m
1 stop
Frontier Logo
7:39 pm - 7:27 pm
SAT
-
AUS
23h 48m
1 stop
$327Frontier
Wed, Jul 22 - Wed, Jul 29
Southwest Logo
6:40 am - 12:05 pm
AUS
-
SAT
5h 25m
1 stop
Southwest Logo
6:50 pm - 11:40 pm
SAT
-
AUS
4h 50m
1 stop
$347Southwest
Thu, Jul 16 - Sun, Jul 19
Southwest Logo
3:25 pm - 12:35 am
AUS
-
SAT
9h 10m
2 stops
Southwest Logo
5:30 pm - 10:25 pm
SAT
-
AUS
4h 55m
1 stop
$348Southwest
Wed, Jul 22 - Wed, Jul 29
Southwest Logo
7:05 pm - 10:55 pm
AUS
-
SAT
3h 50m
1 stop
Southwest Logo
5:20 am - 10:55 am
SAT
-
AUS
5h 35m
2 stops
$352Southwest
Thu, Jul 16 - Sun, Jul 19
Southwest Logo
3:25 pm - 12:35 am
AUS
-
SAT
9h 10m
2 stops
Southwest Logo
6:20 am - 2:15 pm
SAT
-
AUS
7h 55m
2 stops
$353Southwest
Wed, Jul 22 - Wed, Jul 29
Southwest Logo
5:40 am - 10:55 am
AUS
-
SAT
5h 15m
2 stops
Southwest Logo
7:30 am - 4:50 pm
SAT
-
AUS
9h 20m
2 stops
$357Southwest
Thu, Jul 16 - Sun, Jul 19

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Southwest flights from Austin to San Antonio

Our best Southwest deals on Austin to San Antonio flight tickets
Southwest
Jul 16
AUS6:40 amAustin Bergstrom
5h 25m
1 stop
SAT12:05 pmSan Antonio
Jul 19
SAT6:50 pmSan Antonio
4h 50m
1 stop
AUS11:40 pmAustin Bergstrom
$347
Southwest
Jul 22
AUS3:25 pmAustin Bergstrom
9h 10m
2 stops
SAT12:35 amSan Antonio
Jul 29
SAT5:30 pmSan Antonio
4h 55m
1 stop
AUS10:25 pmAustin Bergstrom
$348
Southwest
Jul 16
AUS7:05 pmAustin Bergstrom
3h 50m
1 stop
SAT10:55 pmSan Antonio
Jul 19
SAT5:20 amSan Antonio
5h 35m
2 stops
AUS10:55 amAustin Bergstrom
$352

United Airlines flights from Austin to San Antonio

Our best United Airlines deals on Austin to San Antonio flight tickets
United Airlines
Sep 1
AUS8:50 amAustin Bergstrom
12h 02m
1 stop
SAT8:52 pmSan Antonio
Sep 2
SAT9:10 amSan Antonio
10h 02m
1 stop
AUS7:12 pmAustin Bergstrom
$557
United Airlines
Sep 11
AUS5:32 pmAustin Bergstrom
18h 20m
1 stop
SAT11:52 amSan Antonio
Sep 14
SAT4:39 pmSan Antonio
20h 16m
1 stop
AUS12:55 pmAustin Bergstrom
$686
United Airlines
Jul 3
AUS3:37 pmAustin Bergstrom
20h 52m
1 stop
SAT12:29 pmSan Antonio
Jul 7
SAT4:35 pmSan Antonio
18h 40m
1 stop
AUS11:15 amAustin Bergstrom
$893

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 June 18, 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 - SAT

AUSSAT

Austin Bergstrom

Tue 7/14

6:30 am-6:44 pm

1 stop12h 14m

San Antonio

Tue 7/21

7:39 pm-12:07 am

1 stop28h 28m

$235

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 7/14

6:30 am-6:44 pm

1 stop12h 14m

San Antonio

Tue 7/21

9:32 pm-12:07 am

2 stops26h 35m

$300

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 8/25

9:58 am-6:56 pm

1 stop8h 58m

San Antonio

Fri 8/28

7:51 pm-9:13 am

1 stop13h 22m

$314

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 7/22

6:30 am-6:44 pm

1 stop12h 14m

San Antonio

Wed 7/29

7:39 pm-7:27 pm

1 stop23h 48m

$325

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 7/22

6:30 am-6:44 pm

1 stop12h 14m

San Antonio

Wed 7/29

7:39 pm-7:27 pm

1 stop23h 48m

$327

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 7/16

6:40 am-12:05 pm

1 stop5h 25m

San Antonio

Sun 7/19

6:50 pm-11:40 pm

1 stop4h 50m

$347

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 7/22

3:25 pm-12:35 am

2 stops9h 10m

San Antonio

Wed 7/29

5:30 pm-10:25 pm

1 stop4h 55m

$348
Quickest round-trip

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 7/16

7:05 pm-10:55 pm

1 stop3h 50m

San Antonio

Sun 7/19

5:20 am-10:55 am

2 stops5h 35m

$352

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 7/22

3:25 pm-12:35 am

2 stops9h 10m

San Antonio

Wed 7/29

6:20 am-2:15 pm

2 stops7h 55m

$353

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 7/16

5:40 am-10:55 am

2 stops5h 15m

San Antonio

Sun 7/19

7:30 am-4:50 pm

2 stops9h 20m

$357

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 is the most popular carrier 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

3h 00m

Direct flights

None
The fastest flight from Austin to San Antonio takes 3h 00m
There are no direct flights from Austin to San Antonio. There are no popular flight routes from Austin to San Antonio.
Search flight deals

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 3h 00m, 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
Kerrville
Pleasanton
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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Sat 7/18
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