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Cheap flights from Austin to San Antonio from $90

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 5/8. 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
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
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
7:54 pm - 8:18 pm
SAT
-
AUS
24h 24m
1 stop
$166Frontier
Mon, May 11 - Mon, May 18
Frontier Logo
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
7:54 pm - 4:52 pm
SAT
-
AUS
20h 58m
2 stops
$191Frontier
Mon, May 11 - Mon, May 18
Frontier Logo
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
7:54 pm - 10:35 am
SAT
-
AUS
14h 41m
2 stops
$202Frontier
Tue, May 12 - Tue, May 19
Frontier Logo
9:13 pm - 6:56 pm
AUS
-
SAT
21h 43m
1 stop
Frontier Logo
7:51 pm - 11:59 pm
SAT
-
AUS
28h 08m
1 stop
$213Frontier
Mon, Jun 8 - Fri, Jun 12
Frontier Logo
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
7:54 pm - 8:18 pm
SAT
-
AUS
24h 24m
1 stop
$223Frontier
Tue, May 12 - Tue, May 19
Frontier Logo
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
7:54 pm - 8:18 pm
SAT
-
AUS
24h 24m
1 stop
$224Frontier
Thu, May 14 - Thu, May 21
Frontier Logo
9:13 pm - 6:56 pm
AUS
-
SAT
21h 43m
1 stop
Frontier Logo
7:51 pm - 11:48 am
SAT
-
AUS
15h 57m
2 stops
$253Frontier
Mon, Jun 8 - Fri, Jun 12
Frontier Logo
5:47 pm - 6:59 pm
AUS
-
SAT
25h 12m
2 stops
Frontier Logo
7:54 pm - 8:18 pm
SAT
-
AUS
24h 24m
1 stop
$270Frontier
Thu, May 14 - Thu, May 21
Frontier Logo
9:13 pm - 6:59 pm
AUS
-
SAT
21h 46m
1 stop
Frontier Logo
8:56 pm - 11:59 pm
SAT
-
AUS
27h 03m
2 stops
$294Frontier
Sun, Jun 7 - Sat, Jun 13
Frontier Logo
6:02 pm - 2:15 pm
AUS
-
SAT
44h 13m
2 stops
Frontier Logo
7:54 pm - 8:18 pm
SAT
-
AUS
24h 24m
1 stop
$305Frontier
Sat, May 2 - Wed, May 6

Frontier flights from Austin to San Antonio

Our best Frontier deals on Austin to San Antonio flight tickets
Frontier
May 11
AUS9:13 pmAustin Bergstrom
21h 46m
1 stop
SAT6:59 pmSan Antonio
May 18
SAT7:54 pmSan Antonio
24h 24m
1 stop
AUS8:18 pmAustin Bergstrom
$166
Frontier
May 11
AUS9:13 pmAustin Bergstrom
21h 46m
1 stop
SAT6:59 pmSan Antonio
May 18
SAT7:54 pmSan Antonio
20h 58m
2 stops
AUS4:52 pmAustin Bergstrom
$191
Frontier
May 12
AUS9:13 pmAustin Bergstrom
21h 46m
1 stop
SAT6:59 pmSan Antonio
May 19
SAT7:54 pmSan Antonio
14h 41m
2 stops
AUS10:35 amAustin Bergstrom
$202

Spirit Airlines flights from Austin to San Antonio

Our best Spirit Airlines deals on Austin to San Antonio flight tickets
Spirit Airlines
May 14
AUS6:00 amAustin Bergstrom
34h 16m
3 stops
SAT4:16 pmSan Antonio
May 21
SAT5:26 pmSan Antonio
30h 57m
3 stops
AUS12:23 amAustin Bergstrom
$523
Spirit Airlines
Apr 30
AUS9:25 amAustin Bergstrom
14h 26m
2 stops
SAT11:51 pmSan Antonio
May 2
SAT6:00 amSan Antonio
26h 20m
2 stops
AUS8:20 amAustin Bergstrom
$535
Spirit Airlines
Apr 30
AUS6:00 amAustin Bergstrom
31h 17m
3 stops
SAT1:17 pmSan Antonio
May 2
SAT6:00 amSan Antonio
26h 20m
2 stops
AUS8:20 amAustin Bergstrom
$714

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 April 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

Mon 5/11

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Mon 5/18

7:54 pm-8:18 pm

1 stop24h 24m

$166

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Mon 5/11

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Mon 5/18

7:54 pm-4:52 pm

2 stops20h 58m

$191
Quickest round-trip

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 5/12

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Tue 5/19

7:54 pm-10:35 am

2 stops14h 41m

$202

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Mon 6/8

9:13 pm-6:56 pm

1 stop21h 43m

San Antonio

Fri 6/12

7:51 pm-11:59 pm

1 stop28h 08m

$213

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Tue 5/12

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Tue 5/19

7:54 pm-8:18 pm

1 stop24h 24m

$223

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 5/14

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Thu 5/21

7:54 pm-8:18 pm

1 stop24h 24m

$224

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Mon 6/8

9:13 pm-6:56 pm

1 stop21h 43m

San Antonio

Fri 6/12

7:51 pm-11:48 am

2 stops15h 57m

$253

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Thu 5/14

5:47 pm-6:59 pm

2 stops25h 12m

San Antonio

Thu 5/21

7:54 pm-8:18 pm

1 stop24h 24m

$270

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Sun 6/7

9:13 pm-6:59 pm

1 stop21h 46m

San Antonio

Sat 6/13

8:56 pm-11:59 pm

2 stops27h 03m

$294

AustinSan Antonio

AUS - SAT

AUSSAT

Austin Bergstrom

Sat 5/2

6:02 pm-2:15 pm

2 stops44h 13m

San Antonio

Wed 5/6

7:54 pm-8:18 pm

1 stop24h 24m

$305

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 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
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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