Cheap flights from San Antonio to Australia from $640

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Australia departing on 8/20. 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

Discover deals from 900+ travel sites with momondo.

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.

Find the cheapest flights from San Antonio to Australia

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:45 pm - 6:55 am
SAT
-
SYD
25h 10m
1 stop
American Airlines Logo
10:10 am - 2:40 pm
SYD
-
SAT
20h 30m
1 stop
$1,307American Airlines
Mon, Sep 14 - Mon, Oct 5
Air New Zealand Logo
9:24 am - 6:55 am
SAT
-
SYD
30h 31m
1 stop
Air New Zealand Logo
11:20 am - 9:58 pm
SYD
-
SAT
26h 38m
1 stop
$1,309Air New Zealand
Wed, Sep 23 - Mon, Oct 19
United Airlines Logo
1:45 pm - 6:55 am
SAT
-
SYD
26h 10m
2 stops
United Airlines Logo
10:30 am - 7:28 pm
SYD
-
SAT
24h 58m
2 stops
$1,310United Airlines
Mon, Sep 14 - Mon, Oct 5
United Airlines Logo
1:45 pm - 6:55 am
SAT
-
SYD
26h 10m
2 stops
United Airlines Logo
10:30 am - 7:28 pm
SYD
-
SAT
24h 58m
2 stops
$1,311United Airlines
Mon, Sep 14 - Mon, Oct 5
American Airlines Logo
3:44 pm - 7:05 am
SAT
-
SYD
24h 21m
2 stops
American Airlines Logo
6:50 pm - 10:57 pm
SYD
-
SAT
20h 07m
2 stops
$1,312American Airlines
Wed, Sep 23 - Mon, Oct 19
Qatar Airways Logo
5:30 pm - 3:30 pm
SAT
-
ADL
55h 30m
2 stops
Qatar Airways Logo
10:00 pm - 6:38 pm
ADL
-
SAT
35h 08m
2 stops
$1,459Qatar Airways
Thu, Sep 3 - Tue, Sep 8
Qatar Airways Logo
8:27 pm - 3:30 pm
SAT
-
ADL
52h 33m
2 stops
Qatar Airways Logo
10:00 pm - 6:38 pm
ADL
-
SAT
35h 08m
2 stops
$1,460Qatar Airways
Thu, Sep 3 - Tue, Sep 8
Delta Logo
6:05 am - 7:50 am
SAT
-
MEL
34h 45m
2 stops
Delta Logo
10:00 am - 12:26 am
MEL
-
SAT
29h 26m
2 stops
$1,487Delta
Fri, Jul 3 - Fri, Jul 10
Qantas Airways Logo
3:09 pm - 6:45 am
SAT
-
MEL
24h 36m
1 stop
Qantas Airways Logo
9:45 am - 11:59 pm
MEL
-
SAT
29h 14m
1 stop
$1,607Qantas Airways
Mon, Jul 27 - Sat, Aug 8
Qantas Airways Logo
3:09 pm - 5:00 am
SAT
-
BNE
22h 51m
1 stop
Qantas Airways Logo
8:35 pm - 2:09 pm
BNE
-
SAT
32h 34m
1 stop
$1,634Qantas Airways
Sat, Aug 1 - Mon, Aug 17

United Airlines flights from San Antonio to Australia

Our best United Airlines deals on San Antonio to Australia flight tickets
United Airlines
Sep 14
SAT1:45 pmSan Antonio
26h 10m
2 stops
SYD6:55 amSydney Kingsford Smith
Oct 5
SYD10:30 amSydney Kingsford Smith
24h 58m
2 stops
SAT7:28 pmSan Antonio
$1,310
United Airlines
Sep 14
SAT1:45 pmSan Antonio
26h 10m
2 stops
SYD6:55 amSydney Kingsford Smith
Oct 5
SYD10:30 amSydney Kingsford Smith
24h 58m
2 stops
SAT7:28 pmSan Antonio
$1,311
United Airlines
Jun 2
SAT5:30 amSan Antonio
34h 25m
3 stops
SYD6:55 amSydney Kingsford Smith
Jun 9
SYD10:20 amSydney Kingsford Smith
29h 09m
1 stop
SAT12:29 amSan Antonio
$1,334

American Airlines flights from San Antonio to Australia

Our best American Airlines deals on San Antonio to Australia flight tickets
American Airlines
Jun 2
SAT3:05 pmSan Antonio
25h 00m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 9
SYD12:00 pmSydney Kingsford Smith
24h 06m
1 stop
SAT9:06 pmSan Antonio
$1,330
American Airlines
Jun 1
SAT3:05 pmSan Antonio
25h 00m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 8
SYD9:10 amSydney Kingsford Smith
20h 29m
1 stop
SAT2:39 pmSan Antonio
$1,331
American Airlines
May 26
SAT3:05 pmSan Antonio
25h 00m
1 stop
SYD7:05 amSydney Kingsford Smith
Jun 4
SYD12:00 pmSydney Kingsford Smith
18h 54m
1 stop
SAT3:54 pmSan Antonio
$1,380

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Australia 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 May 21, 2026.
Use the filters below to find and compare flights from San Antonio to Australia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 9/14

2:45 pm-6:55 am

1 stop25h 10m

Sydney Kingsford Smith

Mon 10/5

10:10 am-2:40 pm

1 stop20h 30m

$1,307

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 9/23

9:24 am-6:55 am

1 stop30h 31m

Sydney Kingsford Smith

Mon 10/19

11:20 am-9:58 pm

1 stop26h 38m

$1,309

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 9/14

1:45 pm-6:55 am

2 stops26h 10m

Sydney Kingsford Smith

Mon 10/5

10:30 am-7:28 pm

2 stops24h 58m

$1,310

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 9/14

1:45 pm-6:55 am

2 stops26h 10m

Sydney Kingsford Smith

Mon 10/5

10:30 am-7:28 pm

2 stops24h 58m

$1,311
Quickest round-trip

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 9/23

3:44 pm-7:05 am

2 stops24h 21m

Sydney Kingsford Smith

Mon 10/19

6:50 pm-10:57 pm

2 stops20h 07m

$1,312

San AntonioAdelaide

SAT - ADL

SATADL

San Antonio

Thu 9/3

5:30 pm-3:30 pm

2 stops55h 30m

Adelaide

Tue 9/8

10:00 pm-6:38 pm

2 stops35h 08m

$1,459

San AntonioAdelaide

SAT - ADL

SATADL

San Antonio

Thu 9/3

8:27 pm-3:30 pm

2 stops52h 33m

Adelaide

Tue 9/8

10:00 pm-6:38 pm

2 stops35h 08m

$1,460

San AntonioMelbourne

SAT - MEL

SATMEL

San Antonio

Fri 7/3

6:05 am-7:50 am

2 stops34h 45m

Melbourne

Fri 7/10

10:00 am-12:26 am

2 stops29h 26m

$1,487

San AntonioMelbourne

SAT - MEL

SATMEL

San Antonio

Mon 7/27

3:09 pm-6:45 am

1 stop24h 36m

Melbourne

Sat 8/8

9:45 am-11:59 pm

1 stop29h 14m

$1,607

San AntonioBrisbane

SAT - BNE

SATBNE

San Antonio

Sat 8/1

3:09 pm-5:00 am

1 stop22h 51m

Brisbane

Mon 8/17

8:35 pm-2:09 pm

1 stop32h 34m

$1,634

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Australia from

How to get the cheapest flight ticket from San Antonio to Australia

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 month to fly to Australia?

The month of June is, on average, the cheapest month to fly to Australia from San Antonio, with most prices found around $447. If you aren’t able to travel during the month of June, then book flights to Australia from San Antonio during October instead. Flights to Australia in October, while not as cheap as those in June, still average around $511.

Can stopping save me money on San Antonio to Australia flights?

You could potentially save up to 20% on your flight if you consider stops on a San Antonio to Australia flight.

Cheap San Antonio to Australia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Australia

Fastest flight time

22h 03m

Direct flights

None
The fastest flight from San Antonio to Australia takes 22h 03m
There are no direct flights from San Antonio to Australia. There are no popular flight routes from San Antonio to Australia.

Frequently asked questions about flying from San Antonio to Australia

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

    Prices for flights from San Antonio Airport to Australia are updated daily.

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

  • How old do you have to be to fly from San Antonio Airport to Australia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Australia.

  • What documentation or ID do you need to fly to Australia?

    The travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Antonio to Australia

Compare and see reviews for airlines that fly from San Antonio to Australia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $447Free CancellationRating
7.9
8,452 reviews
Search Delta flights
Qantas AirwaysPriceFrom $799Free CancellationRating
7.5
1,038 reviews
Search Qantas Airways flights
American AirlinesPriceFrom $1,004Free CancellationRating
7.1
11,643 reviews
Search American Airlines flights
United AirlinesPriceFrom $1,115Free CancellationRating
7.4
9,738 reviews
Search United Airlines flights

Why use momondo?

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

It is quick and easy to find San Antonio to Australia flights 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 Australia that suits you.

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

momondo does allow users to show only those flights to Australia from San Antonio which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Antonio to Australia?

momondo helps you find the best flight between San Antonio and Australia 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 San Antonio to Australia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Antonio to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Australia 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 6/20
Sat 6/27

Find better results for your trip to Australia

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo