Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Austin to San Antonio from $123

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 8/24. 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 - 6:54 pm
AUS
-
SAT
12h 24m
1 stop
Frontier Logo
8:26 pm - 7:30 pm
SAT
-
AUS
23h 04m
1 stop
$239Frontier
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
8:16 pm - 10:12 am
AUS
-
SAT
13h 56m
1 stop
Frontier Logo
7:49 pm - 7:21 pm
SAT
-
AUS
23h 32m
1 stop
$241Frontier
Wed, Sep 9 - Thu, Sep 17
Frontier Logo
6:30 am - 6:54 pm
AUS
-
SAT
12h 24m
1 stop
Frontier Logo
8:26 pm - 7:30 pm
SAT
-
AUS
23h 04m
1 stop
$256Frontier
Mon, Aug 17 - Fri, Aug 21
Frontier Logo
6:15 am - 7:31 pm
AUS
-
SAT
13h 16m
1 stop
Frontier Logo
8:26 pm - 11:41 pm
SAT
-
AUS
27h 15m
1 stop
$258Frontier
Tue, Sep 1 - Wed, Sep 2
Frontier Logo
6:30 am - 6:54 pm
AUS
-
SAT
12h 24m
1 stop
Frontier Logo
7:49 pm - 12:07 am
SAT
-
AUS
28h 18m
1 stop
$274Frontier
Sat, Aug 8 - Mon, Aug 10
Frontier Logo
6:30 am - 8:37 pm
AUS
-
SAT
14h 07m
2 stops
Frontier Logo
8:26 pm - 7:30 pm
SAT
-
AUS
23h 04m
1 stop
$275Frontier
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
2:25 pm - 6:54 pm
AUS
-
SAT
28h 29m
1 stop
Frontier Logo
8:26 pm - 7:30 pm
SAT
-
AUS
23h 04m
1 stop
$278Frontier
Fri, Aug 14 - Fri, Aug 21
American Airlines Logo
8:00 am - 2:53 pm
AUS
-
SAT
6h 53m
1 stop
American Airlines Logo
7:00 am - 1:28 pm
SAT
-
AUS
6h 28m
1 stop
$283American Airlines
Wed, Sep 2 - Wed, Sep 9
Frontier Logo
8:16 pm - 9:39 pm
AUS
-
SAT
25h 23m
2 stops
Frontier Logo
11:08 am - 11:59 pm
SAT
-
AUS
12h 51m
1 stop
$285Frontier
Wed, Sep 9 - Thu, Sep 17
Frontier Logo
6:15 am - 9:29 pm
AUS
-
SAT
15h 14m
2 stops
Frontier Logo
8:26 pm - 7:30 pm
SAT
-
AUS
23h 04m
1 stop
$294Frontier
Tue, Sep 1 - Wed, Sep 2

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 Austin to San Antonio

Our best Southwest deals on Austin to San Antonio flight tickets
Southwest
Aug 16
AUS5:40 pmAustin Bergstrom
4h 45m
1 stop
SAT10:25 pmSan Antonio
Aug 17
SAT7:45 amSan Antonio
7h 00m
1 stop
AUS2:45 pmAustin Bergstrom
$347
Southwest
Aug 16
AUS5:40 pmAustin Bergstrom
5h 15m
2 stops
SAT10:55 pmSan Antonio
Aug 17
SAT2:55 pmSan Antonio
5h 30m
1 stop
AUS8:25 pmAustin Bergstrom
$352
Southwest
Aug 13
AUS8:40 amAustin Bergstrom
6h 05m
2 stops
SAT2:45 pmSan Antonio
Aug 19
SAT6:40 amSan Antonio
5h 35m
2 stops
AUS12:15 pmAustin Bergstrom
$357

Frontier flights from Austin to San Antonio

Our best Frontier deals on Austin to San Antonio flight tickets
Frontier
Aug 12
AUS6:30 amAustin Bergstrom
12h 24m
1 stop
SAT6:54 pmSan Antonio
Aug 19
SAT8:26 pmSan Antonio
23h 04m
1 stop
AUS7:30 pmAustin Bergstrom
$239
Frontier
Sep 9
AUS8:16 pmAustin Bergstrom
13h 56m
1 stop
SAT10:12 amSan Antonio
Sep 17
SAT7:49 pmSan Antonio
23h 32m
1 stop
AUS7:21 pmAustin Bergstrom
$241
Frontier
Aug 17
AUS6:30 amAustin Bergstrom
12h 24m
1 stop
SAT6:54 pmSan Antonio
Aug 21
SAT8:26 pmSan Antonio
23h 04m
1 stop
AUS7:30 pmAustin Bergstrom
$256

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 17, 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 8/12

6:30 am-6:54 pm

1 stop12h 24m

San Antonio

Wed 8/19

8:26 pm-7:30 pm

1 stop23h 04m

$239

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 9/9

8:16 pm-10:12 am

1 stop13h 56m

San Antonio

Thu 9/17

7:49 pm-7:21 pm

1 stop23h 32m

$241

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Mon 8/17

6:30 am-6:54 pm

1 stop12h 24m

San Antonio

Fri 8/21

8:26 pm-7:30 pm

1 stop23h 04m

$256

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 9/1

6:15 am-7:31 pm

1 stop13h 16m

San Antonio

Wed 9/2

8:26 pm-11:41 pm

1 stop27h 15m

$258

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Sat 8/8

6:30 am-6:54 pm

1 stop12h 24m

San Antonio

Mon 8/10

7:49 pm-12:07 am

1 stop28h 18m

$274

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 8/12

6:30 am-8:37 pm

2 stops14h 07m

San Antonio

Wed 8/19

8:26 pm-7:30 pm

1 stop23h 04m

$275

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Fri 8/14

2:25 pm-6:54 pm

1 stop28h 29m

San Antonio

Fri 8/21

8:26 pm-7:30 pm

1 stop23h 04m

$278
Quickest round-trip

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 9/2

8:00 am-2:53 pm

1 stop6h 53m

San Antonio

Wed 9/9

7:00 am-1:28 pm

1 stop6h 28m

$283

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Wed 9/9

8:16 pm-9:39 pm

2 stops25h 23m

San Antonio

Thu 9/17

11:08 am-11:59 pm

1 stop12h 51m

$285

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 9/1

6:15 am-9:29 pm

2 stops15h 14m

San Antonio

Wed 9/2

8:26 pm-7:30 pm

1 stop23h 04m

$294

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 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 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

2h 55m

Direct flights

None
The fastest flight from Austin to San Antonio takes 2h 55m
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 2h 55m, 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.

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
Sun 8/16
Sun 8/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States