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Look for other cheap flights to San Antonio

$1,658 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 6/3. 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.
Multiple Airlines Logo
11:45 - 19:48
SYD
-
SAT
25h 03m
2 stops
Multiple Airlines Logo
18:52 - 10:30
SAT
-
SYD
23h 38m
2 stops
$1,658Multiple Airlines
Fri, 6 Mar - Fri, 13 Mar
Multiple Airlines Logo
09:55 - 19:48
SYD
-
SAT
24h 53m
2 stops
Multiple Airlines Logo
19:34 - 08:45
SAT
-
SYD
22h 11m
2 stops
$1,661Multiple Airlines
Mon, 20 Apr - Thu, 7 May
Delta Logo
09:15 - 23:32
SYD
-
SAT
29h 17m
1 stop
Delta Logo
14:00 - 06:35
SAT
-
SYD
25h 35m
2 stops
$2,047Delta
Mon, 20 Apr - Thu, 7 May
American Airlines Logo
11:20 - 15:11
SYD
-
SAT
20h 51m
1 stop
American Airlines Logo
17:36 - 09:00
SAT
-
SYD
23h 24m
2 stops
$2,090American Airlines
Fri, 6 Mar - Fri, 13 Mar
American Airlines Logo
11:20 - 23:01
SYD
-
SAT
28h 41m
1 stop
American Airlines Logo
15:47 - 09:00
SAT
-
SYD
25h 13m
1 stop
$2,103American Airlines
Sat, 7 Mar - Sat, 14 Mar
American Airlines Logo
11:20 - 16:56
SYD
-
SAT
22h 36m
2 stops
American Airlines Logo
16:35 - 09:00
SAT
-
SYD
24h 25m
2 stops
$2,109American Airlines
Sat, 7 Mar - Sat, 14 Mar
Air Canada Logo
11:20 - 20:56
SYD
-
SAT
26h 36m
2 stops
Air Canada Logo
11:43 - 09:35
SAT
-
SYD
28h 52m
2 stops
$2,433Air Canada
Thu, 19 Feb - Mon, 23 Feb
United Airlines Logo
23:45 - 22:05
PER
-
SAT
36h 20m
2 stops
United Airlines Logo
14:10 - 14:45
SAT
-
PER
34h 35m
3 stops
$3,295United Airlines
Thu, 19 Feb - Mon, 23 Feb
United Airlines Logo
23:45 - 22:05
PER
-
SAT
36h 20m
2 stops
United Airlines Logo
14:10 - 14:45
SAT
-
PER
34h 35m
3 stops
$3,302United Airlines
Thu, 19 Feb - Mon, 23 Feb
Qantas Airways Logo
06:00 - 23:21
PER
-
SAT
30h 21m
2 stops
Qantas Airways Logo
19:12 - 15:25
SAT
-
PER
31h 13m
2 stops
$6,126Qantas Airways
Sat, 28 Mar - Tue, 14 Apr

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 20 January 2026.
Use the filters below to find and compare flights to San Antonio that are best for you.

Fly from

Route

Depart

Return

Price

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Fri 6/3

11:45-19:48

2 stops25h 03m

San Antonio

Fri 13/3

18:52-10:30

2 stops23h 38m

$1,658

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:55-19:48

2 stops24h 53m

San Antonio

Thu 7/5

19:34-08:45

2 stops22h 11m

$1,661

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:15-23:32

1 stop29h 17m

San Antonio

Thu 7/5

14:00-06:35

2 stops25h 35m

$2,047

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Fri 6/3

11:20-15:11

1 stop20h 51m

San Antonio

Fri 13/3

17:36-09:00

2 stops23h 24m

$2,090

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 7/3

11:20-23:01

1 stop28h 41m

San Antonio

Sat 14/3

15:47-09:00

1 stop25h 13m

$2,103

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 7/3

11:20-16:56

2 stops22h 36m

San Antonio

Sat 14/3

16:35-09:00

2 stops24h 25m

$2,109

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 19/2

11:20-20:56

2 stops26h 36m

San Antonio

Mon 23/2

11:43-09:35

2 stops28h 52m

$2,433

PerthSan Antonio

PER - SAT

PERSAT

Perth

Thu 19/2

23:45-22:05

2 stops36h 20m

San Antonio

Mon 23/2

14:10-14:45

3 stops34h 35m

$3,295

PerthSan Antonio

PER - SAT

PERSAT

Perth

Thu 19/2

23:45-22:05

2 stops36h 20m

San Antonio

Mon 23/2

14:10-14:45

3 stops34h 35m

$3,302

PerthSan Antonio

PER - SAT

PERSAT

Perth

Sat 28/3

06:00-23:21

2 stops30h 21m

San Antonio

Tue 14/4

19:12-15:25

2 stops31h 13m

$6,126

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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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 18h 23m on average, while flying from Melbourne to Austin Bergstrom is 21h 06m 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 SYDNEYSeptember3% cheaperFlying from Sydney to San Antonio costs on average just $1,361 in September
MOST EXPENSIVE MONTH TO FLY TO SAN ANTONIO FROM SYDNEYDecember79% more expensiveIt costs about $2,512 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 One-Way Price

$2,651

Best Round-Trip Price

$1,658

Fastest flight time

22h 30m

Popular in

February
The best one-way flight price to San Antonio from Australia in the last 72 hours is $2,651 (Sydney Kingsford Smith to San Antonio).
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The best round-trip flight price to San Antonio from Australia in the last 72 hours is $1,658 (Sydney Kingsford Smith to San Antonio).
Search Deals
The fastest flight to San Antonio from Australia takes 22h 30m (Sydney Kingsford Smith to San Antonio).
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February has the highest demand for flights to San Antonio, with a 4% price increase on average.
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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 $1,361. The month of April is another great option to travel to San Antonio, with average flight prices from Australia averaging around $1,419.

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 $582/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 January 2026, there are 2 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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Find better results for your trip to San Antonio

Popular Flights to San Antonio

Popular routes according to searches in the past day on momondo
Perth to San Antonio Flightsfrom $1,785
Sydney Kingsford Smith to San Antonio Flightsfrom $1,116
Melbourne to San Antonio Flightsfrom $13,448