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Cheap flights from Austin to San Antonio from $121

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 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Austin to San Antonio

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:28 am - 6:59 pm
AUS
-
SAT
8h 31m
1 stop
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$255Frontier
Wed, Jun 3 - Wed, Jun 17
Frontier Logo
10:28 am - 6:59 pm
AUS
-
SAT
8h 31m
1 stop
Frontier Logo
8:56 pm - 11:59 pm
SAT
-
AUS
27h 03m
2 stops
$262Frontier
Wed, Jun 3 - Wed, Jun 17
Frontier Logo
6:30 am - 6:56 pm
AUS
-
SAT
12h 26m
1 stop
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$269Frontier
Wed, Jun 10 - Wed, Jun 17
Frontier Logo
1:51 pm - 6:56 pm
AUS
-
SAT
29h 05m
2 stops
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$292Frontier
Wed, Jun 10 - Wed, Jun 17
Frontier Logo
3:27 pm - 6:56 pm
AUS
-
SAT
27h 29m
2 stops
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$296Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
7:54 pm - 9:43 am
SAT
-
AUS
13h 49m
1 stop
$307Frontier
Fri, Jun 5 - Sun, Jun 7
Frontier Logo
8:15 pm - 6:56 pm
AUS
-
SAT
22h 41m
1 stop
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$338Frontier
Tue, Jun 9 - Tue, Jun 16
Southwest Logo
9:05 pm - 12:55 am
AUS
-
SAT
3h 50m
1 stop
Southwest Logo
3:05 pm - 8:30 pm
SAT
-
AUS
5h 25m
1 stop
$347Southwest
Thu, Jun 11 - Sun, Jun 14
Southwest Logo
3:25 pm - 12:30 am
AUS
-
SAT
9h 05m
2 stops
Southwest Logo
7:30 am - 12:15 pm
SAT
-
AUS
4h 45m
1 stop
$348Southwest
Wed, Jul 15 - Sun, Jul 19
Frontier Logo
6:30 am - 6:56 pm
AUS
-
SAT
12h 26m
1 stop
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$351Frontier
Wed, Jun 10 - Sun, Jun 14

Frontier flights from Austin to San Antonio

Our best Frontier deals on Austin to San Antonio flight tickets
Frontier
Jun 10
AUS6:30 amAustin Bergstrom
12h 26m
1 stop
SAT6:56 pmSan Antonio
Jun 17
SAT7:51 pmSan Antonio
28h 08m
1 stop
AUS11:59 pmAustin Bergstrom
$269
Frontier
Jun 10
AUS1:51 pmAustin Bergstrom
29h 05m
2 stops
SAT6:56 pmSan Antonio
Jun 17
SAT7:51 pmSan Antonio
28h 08m
1 stop
AUS11:59 pmAustin Bergstrom
$292
Frontier
Jun 9
AUS3:27 pmAustin Bergstrom
27h 29m
2 stops
SAT6:56 pmSan Antonio
Jun 16
SAT7:51 pmSan Antonio
28h 08m
1 stop
AUS11:59 pmAustin Bergstrom
$296

Southwest flights from Austin to San Antonio

Our best Southwest deals on Austin to San Antonio flight tickets
Southwest
Jun 11
AUS9:05 pmAustin Bergstrom
3h 50m
1 stop
SAT12:55 amSan Antonio
Jun 14
SAT3:05 pmSan Antonio
5h 25m
1 stop
AUS8:30 pmAustin Bergstrom
$347
Southwest
Jul 15
AUS3:25 pmAustin Bergstrom
9h 05m
2 stops
SAT12:30 amSan Antonio
Jul 19
SAT7:30 amSan Antonio
4h 45m
1 stop
AUS12:15 pmAustin Bergstrom
$348
Southwest
Jul 15
AUS3:25 pmAustin Bergstrom
9h 05m
2 stops
SAT12:30 amSan Antonio
Jul 19
SAT5:40 amSan Antonio
6h 35m
2 stops
AUS12:15 pmAustin Bergstrom
$353

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 May 13, 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

Wed 6/3

10:28 am-6:59 pm

1 stop8h 31m

San Antonio

Wed 6/17

7:51 pm-11:59 pm

1 stop28h 08m

$255

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 6/3

10:28 am-6:59 pm

1 stop8h 31m

San Antonio

Wed 6/17

8:56 pm-11:59 pm

2 stops27h 03m

$262

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 6/10

6:30 am-6:56 pm

1 stop12h 26m

San Antonio

Wed 6/17

7:51 pm-11:59 pm

1 stop28h 08m

$269

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 6/10

1:51 pm-6:56 pm

2 stops29h 05m

San Antonio

Wed 6/17

7:51 pm-11:59 pm

1 stop28h 08m

$292

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 6/9

3:27 pm-6:56 pm

2 stops27h 29m

San Antonio

Tue 6/16

7:51 pm-11:59 pm

1 stop28h 08m

$296

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Fri 6/5

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Sun 6/7

7:54 pm-9:43 am

1 stop13h 49m

$307

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 6/9

8:15 pm-6:56 pm

1 stop22h 41m

San Antonio

Tue 6/16

7:51 pm-11:59 pm

1 stop28h 08m

$338
Quickest round-trip

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 6/11

9:05 pm-12:55 am

1 stop3h 50m

San Antonio

Sun 6/14

3:05 pm-8:30 pm

1 stop5h 25m

$347

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 7/15

3:25 pm-12:30 am

2 stops9h 05m

San Antonio

Sun 7/19

7:30 am-12:15 pm

1 stop4h 45m

$348

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 6/10

6:30 am-6:56 pm

1 stop12h 26m

San Antonio

Sun 6/14

7:51 pm-11:59 pm

1 stop28h 08m

$351

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 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 35m

Direct flights

None
The fastest flight from Austin to San Antonio takes 3h 35m
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 35m, 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
Boerne
Pleasanton
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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