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Look for other cheap flights to San Antonio

$2,090 Cheap flights to San Antonio

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight 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.
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Find the cheapest flights from Australia to San Antonio

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
09:10 - 22:31
SYD
-
SAT
28h 21m
1 stop
American Airlines Logo
15:10 - 07:05
SAT
-
SYD
24h 55m
1 stop
$2,090American Airlines
Wed, 5 Aug - Mon, 24 Aug
Qantas Airways Logo
09:10 - 14:37
SYD
-
SAT
20h 27m
1 stop
Qantas Airways Logo
15:20 - 07:05
SAT
-
SYD
24h 45m
2 stops
$2,096Qantas Airways
Wed, 5 Aug - Mon, 24 Aug
American Airlines Logo
09:10 - 15:38
SYD
-
SAT
21h 28m
2 stops
American Airlines Logo
17:35 - 07:05
SAT
-
SYD
22h 30m
2 stops
$2,129American Airlines
Wed, 13 May - Fri, 29 May
American Airlines Logo
09:10 - 15:29
SYD
-
SAT
21h 19m
1 stop
American Airlines Logo
07:00 - 07:05
SAT
-
SYD
33h 05m
1 stop
$2,134American Airlines
Thu, 14 May - Thu, 21 May
American Airlines Logo
09:10 - 15:29
SYD
-
SAT
21h 19m
1 stop
American Airlines Logo
15:05 - 07:05
SAT
-
SYD
25h 00m
1 stop
$2,216American Airlines
Fri, 15 May - Fri, 22 May
American Airlines Logo
09:10 - 23:29
SYD
-
SAT
29h 19m
1 stop
American Airlines Logo
15:05 - 07:05
SAT
-
SYD
25h 00m
1 stop
$2,219American Airlines
Sat, 16 May - Sat, 23 May
American Airlines Logo
09:10 - 15:29
SYD
-
SAT
21h 19m
1 stop
American Airlines Logo
16:25 - 07:05
SAT
-
SYD
23h 40m
2 stops
$2,224American Airlines
Fri, 15 May - Fri, 22 May
American Airlines Logo
09:10 - 15:29
SYD
-
SAT
21h 19m
1 stop
American Airlines Logo
16:24 - 07:05
SAT
-
SYD
23h 41m
2 stops
$2,225American Airlines
Sat, 16 May - Sat, 23 May
Japan Airlines Logo
08:55 - 22:31
SYD
-
SAT
28h 36m
2 stops
Japan Airlines Logo
07:00 - 06:20
SAT
-
SYD
56h 20m
2 stops
$2,305Japan Airlines
Thu, 3 Sep - Mon, 7 Sep
Japan Airlines Logo
08:55 - 22:31
SYD
-
SAT
52h 36m
2 stops
Japan Airlines Logo
07:00 - 06:20
SAT
-
SYD
56h 20m
2 stops
$2,321Japan Airlines
Thu, 3 Sep - Mon, 7 Sep

momondo Fare Finder

 
Locate flights to San Antonio that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 78,305 searches and data was last updated on 4 April 2026.
Use the filters below to find and compare flights to San Antonio that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Wed 5/8

09:10-22:31

1 stop28h 21m

San Antonio

Mon 24/8

15:10-07:05

1 stop24h 55m

$2,090

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Wed 5/8

09:10-14:37

1 stop20h 27m

San Antonio

Mon 24/8

15:20-07:05

2 stops24h 45m

$2,096
Fastest return journey

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Wed 13/5

09:10-15:38

2 stops21h 28m

San Antonio

Fri 29/5

17:35-07:05

2 stops22h 30m

$2,129

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 14/5

09:10-15:29

1 stop21h 19m

San Antonio

Thu 21/5

07:00-07:05

1 stop33h 05m

$2,134

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Fri 15/5

09:10-15:29

1 stop21h 19m

San Antonio

Fri 22/5

15:05-07:05

1 stop25h 00m

$2,216

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 16/5

09:10-23:29

1 stop29h 19m

San Antonio

Sat 23/5

15:05-07:05

1 stop25h 00m

$2,219

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Fri 15/5

09:10-15:29

1 stop21h 19m

San Antonio

Fri 22/5

16:25-07:05

2 stops23h 40m

$2,224

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 16/5

09:10-15:29

1 stop21h 19m

San Antonio

Sat 23/5

16:24-07:05

2 stops23h 41m

$2,225

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 3/9

08:55-22:31

2 stops28h 36m

San Antonio

Mon 7/9

07:00-06:20

2 stops56h 20m

$2,305

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 3/9

08:55-22:31

2 stops52h 36m

San Antonio

Mon 7/9

07:00-06:20

2 stops56h 20m

$2,321

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to San Antonio from

San Antonio flights insights and trends

Explore insights for your San Antonio flight to craft the best travel plan

How long does it take to fly to San Antonio?

The average flight duration from Australia to San Antonio depends on which airport you fly into and out of. Flying from Sydney Kingsford Smith to Austin Bergstrom is 25h 43m on average, while flying from Melbourne to Austin Bergstrom is 19h 50m on average. Austin Bergstrom is the most popular airport in San Antonio.

Cheapest flights to San Antonio

Find the cheapest flights to San Antonio from your nearest city or airport
Find flights from Sydney to Austin
CHEAPEST MONTH TO FLY TO SAN ANTONIO FROM SYDNEYSeptember6% cheaperFlying from Sydney to San Antonio costs on average just $1,312 in September
MOST EXPENSIVE MONTH TO FLY TO SAN ANTONIO FROM SYDNEYDecember76% more expensiveIt costs about $2,450 for flights to San Antonio from Sydney in December
MOST POPULAR MONTH TO FLY TO SAN ANTONIO FROM SYDNEYMay1,300% more users visitedMore momondo users searched in flights to San Antonio from Sydney in May than any other month

Cheap San Antonio flight deals and tips

Summary info about San Antonio flight prices, duration and airlines

Best Round-Trip Price

$2,090

Fastest flight time

28h 21m

Popular in

December
The best round-trip flight price to San Antonio from Australia in the last 72 hours is $2,090 (Sydney Kingsford Smith to San Antonio).
Search Deals
The fastest flight to San Antonio from Australia takes 28h 21m (Sydney Kingsford Smith to San Antonio).
Search Deals
December has the highest demand for flights to San Antonio, with a 6% price increase on average.
Search Deals

Frequently asked questions about flying to San Antonio

What is the cheapest month to fly to San Antonio?

In general, September is the cheapest month to fly from Australia to San Antonio. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,312. The month of April is another great option to travel to San Antonio, with average flight prices from Australia averaging around $1,383.

Is there an alternative airport near San Antonio?

San Antonio Airport can be an alternative airport used for travel to San Antonio.

Is there a cheaper alternative to flying into San Antonio?

The cheapest airport near San Antonio is typically San Antonio Airport, with an average price of $390/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

When did momondo last update prices for flights to San Antonio Airport?

Prices for flights to San Antonio Airport are refreshed on a daily basis.

How many operators does momondo search for flights to San Antonio Airport?

As of April 2026, there are 3 operators available to choose from for flights to San Antonio Airport.

How old do you have to be to fly 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 stopovers. It is recommended that you verify with the airline you are booking with for travel to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The necessary travel and health documents for your San Antonio Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal to San Antonio?

It is quick and easy to find flights to San Antonio on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Antonio that suits you.

Can I find flights to San Antonio with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Antonio with this policy.

How can momondo help me find flights to San Antonio?

Once all potential San Antonio flight options are in front of you momondo lets you sort and filter flights based on preferences such as airline, price and flight times, amongst many other options.

I’m not ready to book a flight to San Antonio right now. Can momondo alert me if prices change?

If you are not ready to book a flight to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert; this is where momondo will track prices on flights to San Antonio and let you know when they change.

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Popular Flights to San Antonio

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to San Antonio Flightsfrom $1,605
Perth to San Antonio Flightsfrom $2,113
Melbourne to San Antonio Flightsfrom $2,852