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Cheap flights from Austin to San Antonio from $156

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 9/2. 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
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$240Frontier
Wed, Oct 28 - Sat, Nov 7
Frontier Logo
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$263Frontier
Wed, Oct 28 - Tue, Nov 10
Frontier Logo
6:45 am - 7:01 pm
AUS
-
SAT
12h 16m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$279Frontier
Thu, Oct 29 - Sat, Nov 7
Frontier Logo
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$279Frontier
Tue, Oct 27 - Sat, Nov 7
Frontier Logo
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 7:26 pm
SAT
-
AUS
8h 18m
1 stop
$280Frontier
Wed, Oct 28 - Wed, Nov 4
Frontier Logo
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 7:26 pm
SAT
-
AUS
8h 18m
1 stop
$288Frontier
Wed, Oct 28 - Mon, Nov 9
Frontier Logo
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$295Frontier
Fri, Oct 30 - Sat, Nov 7
Frontier Logo
9:27 pm - 10:12 am
AUS
-
SAT
12h 45m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$297Frontier
Mon, Oct 26 - Sat, Nov 7
Frontier Logo
8:21 pm - 10:12 am
AUS
-
SAT
13h 51m
1 stop
Frontier Logo
11:08 am - 7:26 pm
SAT
-
AUS
8h 18m
1 stop
$297Frontier
Wed, Oct 28 - Thu, Nov 5
Frontier Logo
6:45 am - 7:01 pm
AUS
-
SAT
12h 16m
1 stop
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$302Frontier
Thu, Oct 29 - Tue, Nov 10

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Frontier flights from Austin to San Antonio

Our best Frontier deals on Austin to San Antonio flight tickets
Frontier
Oct 28
AUS8:21 pmAustin Bergstrom
13h 51m
1 stop
SAT10:12 amSan Antonio
Nov 7
SAT11:08 amSan Antonio
12h 51m
1 stop
AUS11:59 pmAustin Bergstrom
$240
Frontier
Oct 28
AUS8:21 pmAustin Bergstrom
13h 51m
1 stop
SAT10:12 amSan Antonio
Nov 10
SAT11:08 amSan Antonio
12h 51m
1 stop
AUS11:59 pmAustin Bergstrom
$263
Frontier
Oct 27
AUS8:21 pmAustin Bergstrom
13h 51m
1 stop
SAT10:12 amSan Antonio
Nov 7
SAT11:08 amSan Antonio
12h 51m
1 stop
AUS11:59 pmAustin Bergstrom
$279

Southwest flights from Austin to San Antonio

Our best Southwest deals on Austin to San Antonio flight tickets
Southwest
Aug 27
AUS1:40 pmAustin Bergstrom
5h 20m
1 stop
SAT7:00 pmSan Antonio
Aug 30
SAT3:20 pmSan Antonio
3h 55m
1 stop
AUS7:15 pmAustin Bergstrom
$357
Southwest
Sep 10
AUS1:00 pmAustin Bergstrom
6h 00m
2 stops
SAT7:00 pmSan Antonio
Sep 17
SAT5:40 pmSan Antonio
3h 50m
1 stop
AUS9:30 pmAustin Bergstrom
$362
Southwest
Aug 25
AUS7:45 amAustin Bergstrom
5h 05m
2 stops
SAT12:50 pmSan Antonio
Sep 1
SAT12:55 pmSan Antonio
6h 20m
2 stops
AUS7:15 pmAustin Bergstrom
$367

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 July 28, 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 10/28

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Sat 11/7

11:08 am-11:59 pm

1 stop12h 51m

$240

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 10/28

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Tue 11/10

11:08 am-11:59 pm

1 stop12h 51m

$263

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 10/29

6:45 am-7:01 pm

1 stop12h 16m

San Antonio

Sat 11/7

11:08 am-11:59 pm

1 stop12h 51m

$279

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 10/27

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Sat 11/7

11:08 am-11:59 pm

1 stop12h 51m

$279
Quickest round-trip

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 10/28

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Wed 11/4

11:08 am-7:26 pm

1 stop8h 18m

$280

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 10/28

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Mon 11/9

11:08 am-7:26 pm

1 stop8h 18m

$288

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Fri 10/30

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Sat 11/7

11:08 am-11:59 pm

1 stop12h 51m

$295

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Mon 10/26

9:27 pm-10:12 am

1 stop12h 45m

San Antonio

Sat 11/7

11:08 am-11:59 pm

1 stop12h 51m

$297

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 10/28

8:21 pm-10:12 am

1 stop13h 51m

San Antonio

Thu 11/5

11:08 am-7:26 pm

1 stop8h 18m

$297

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 10/29

6:45 am-7:01 pm

1 stop12h 16m

San Antonio

Tue 11/10

11:08 am-11:59 pm

1 stop12h 51m

$302

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?

Frontier and Southwest 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

5h 05m

Direct flights

None
The fastest flight from Austin to San Antonio takes 5h 05m
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 5h 05m, 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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