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$1,740 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 20/4. 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
11:55 - 21:10
SYD
-
SAT
24h 15m2 stops
Multiple Airlines Logo
19:34 - 08:45
SAT
-
SYD
22h 11m2 stops
$1,740Multiple Airlines
Mon, 20 Apr - Thu, 7 May
Multiple Airlines Logo
11:55 - 21:10
SYD
-
SAT
24h 15m2 stops
Multiple Airlines Logo
19:34 - 08:45
SAT
-
SYD
22h 11m2 stops
$1,746Multiple Airlines
Mon, 20 Apr - Thu, 7 May
Delta Logo
09:15 - 14:42
SYD
-
SAT
20h 27m1 stop
Delta Logo
16:10 - 06:35
SAT
-
SYD
23h 25m1 stop
$1,854Delta
Mon, 20 Apr - Thu, 7 May
Delta Logo
09:15 - 14:42
SYD
-
SAT
20h 27m1 stop
Delta Logo
05:30 - 06:35
SAT
-
SYD
34h 05m2 stops
$1,861Delta
Mon, 20 Apr - Thu, 7 May
American Airlines Logo
09:10 - 14:33
SYD
-
SAT
20h 23m1 stop
American Airlines Logo
17:15 - 07:05
SAT
-
SYD
22h 50m2 stops
$2,120American Airlines
Mon, 20 Apr - Thu, 7 May
American Airlines Logo
09:10 - 14:33
SYD
-
SAT
20h 23m1 stop
American Airlines Logo
17:15 - 07:05
SAT
-
SYD
22h 50m2 stops
$2,127American Airlines
Mon, 20 Apr - Thu, 7 May
American Airlines Logo
12:00 - 15:46
SYD
-
SAT
18h 46m1 stop
American Airlines Logo
07:00 - 07:05
SAT
-
SYD
33h 05m1 stop
$2,137American Airlines
Mon, 20 Apr - Thu, 7 May
United Airlines Logo
10:20 - 19:47
SYD
-
SAT
24h 27m2 stops
United Airlines Logo
18:02 - 07:00
SAT
-
SYD
21h 58m2 stops
$2,146United Airlines
Mon, 20 Apr - Thu, 7 May
United Airlines Logo
10:20 - 23:18
SYD
-
SAT
27h 58m2 stops
United Airlines Logo
18:02 - 07:00
SAT
-
SYD
21h 58m2 stops
$2,154United Airlines
Mon, 20 Apr - Thu, 7 May
Air Canada Logo
11:20 - 16:55
SYD
-
SAT
22h 35m2 stops
Air Canada Logo
14:10 - 09:35
SAT
-
SYD
26h 25m2 stops
$2,321Air Canada
Thu, 19 Feb - Mon, 23 Feb

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 18 December 2025.
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

Mon 20/4

11:55-21:10

2 stops24h 15m

San Antonio

Thu 7/5

19:34-08:45

2 stops22h 11m

$1,740

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

11:55-21:10

2 stops24h 15m

San Antonio

Thu 7/5

19:34-08:45

2 stops22h 11m

$1,746

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:15-14:42

1 stop20h 27m

San Antonio

Thu 7/5

16:10-06:35

1 stop23h 25m

$1,854

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:15-14:42

1 stop20h 27m

San Antonio

Thu 7/5

05:30-06:35

2 stops34h 05m

$1,861

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:10-14:33

1 stop20h 23m

San Antonio

Thu 7/5

17:15-07:05

2 stops22h 50m

$2,120

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:10-14:33

1 stop20h 23m

San Antonio

Thu 7/5

17:15-07:05

2 stops22h 50m

$2,127

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

12:00-15:46

1 stop18h 46m

San Antonio

Thu 7/5

07:00-07:05

1 stop33h 05m

$2,137

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

10:20-19:47

2 stops24h 27m

San Antonio

Thu 7/5

18:02-07:00

2 stops21h 58m

$2,146

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

10:20-23:18

2 stops27h 58m

San Antonio

Thu 7/5

18:02-07:00

2 stops21h 58m

$2,154

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 19/2

11:20-16:55

2 stops22h 35m

San Antonio

Mon 23/2

14:10-09:35

2 stops26h 25m

$2,321

Flights are sorted by cheapest return flights first.

Sorted 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

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart from Australia to San Antonio is on a Monday when prices can be found for as low as $1,634. The most expensive day to fly to San Antonio is Thursday, with ticket prices averaging around $2,480.

What is the cheapest time of day to depart on your flight to San Antonio?

Our data shows that the cheapest Australia to San Antonio flights are usually those with departure times at midday. Our users have found flights to San Antonio at midday for as low as $1,738. In contrast, the most expensive time of day to depart to San Antonio is in the afternoon when prices are around $2,554.

Cheapest flights to San Antonio

Find the cheapest flights to San Antonio from your nearest city or airport
Find flights from Sydney to San Antonio
CHEAPEST MONTH TO FLY TO SAN ANTONIO FROM SYDNEYApril12% cheaperFlying from Sydney to San Antonio costs on average just $1,443 in April
MOST EXPENSIVE MONTH TO FLY TO SAN ANTONIO FROM SYDNEYDecember53% more expensiveIt costs about $2,515 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

$1,740

Fastest flight time

24h 15m

Popular in

February
The best round-trip flight price to San Antonio from Australia in the last 72 hours is $1,740 (Sydney Kingsford Smith to San Antonio).
Search Deals
The fastest flight to San Antonio from Australia takes 24h 15m (Sydney Kingsford Smith to San Antonio).
Search Deals
February has the highest demand for flights to San Antonio, with a 0% 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, April 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 $1,443. The month of September is another great option to travel to San Antonio, with average flight prices from Australia averaging around $1,445.

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 $592/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 December 2025, 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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Popular Flights to San Antonio

Popular routes according to searches in the past day on momondo
Sydney Kingsford Smith to San Antonio Flightsfrom $1,151
Melbourne to San Antonio Flightsfrom $1,516
Perth to San Antonio Flightsfrom $2,064