Cheap flights from San Antonio to Australia from $827

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Antonio to Australia

Keep the following information in mind while searching for San Antonio to Australia flight deals. Data was last updated 18 November 2025.

Round-trip from

$1,460

One-way from

$827

Popular in

December

Cheapest in

March

Average price

$2,142
Qantas Airways
  • Qantas Airways
  • 21/2-7/3
  • 3 total stops
  • 57h 53m total
  • San Antonio to Australia
Delta
  • Delta
  • 5/4
  • 2 total stops
  • 27h 10m total
  • San Antonio to Australia
Highest demand for flights based on searches. 15% potential increase in price ($572 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($131 potential savings vs. average return price).
Average for round-trip flights in November 2025

Find flight deals from San Antonio to Australia

Enter your travel dates to find the best prices.

Cheapest flights from San Antonio to Australia
Explore the most affordable flight options available from San Antonio to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 November 2025.

Wed 3/1216:59SAT - SYD
1 stop22h 31mDelta
Thu 11/1210:40SYD - SAT
1 stop21h 10mDelta
Deal found 17/11$1,514
Sat 22/1114:00SAT - SYD
1 stop25h 30mDelta
Sat 29/1110:40SYD - SAT
1 stop21h 06mDelta
Deal found 17/11$1,548
Wed 3/1218:07SAT - SYD
2 stops33h 08mMultiple Airlines
Thu 11/1206:00SYD - SAT
3 stops34h 26mMultiple Airlines
Deal found 17/11$1,956
Wed 31/1215:00SAT - SYD
2 stops27h 55mQantas Airways
Wed 7/117:50SYD - SAT
2 stops35h 28mQantas Airways
Deal found 16/11$2,073
Wed 31/1215:00SAT - MEL
2 stops28h 40mQantas Airways
Wed 7/116:40MEL - SAT
2 stops36h 38mQantas Airways
Deal found 15/11$2,097
Wed 31/1214:13SAT - SYD
1 stop23h 47mUnited Airlines
Wed 7/111:50SYD - SAT
1 stop18h 29mUnited Airlines
Deal found 16/11$2,991
Fri 26/1217:59SAT - SYD
1 stop20h 01mUnited Airlines
Thu 8/111:20SYD - SAT
2 stops27h 01mUnited Airlines
Deal found 17/11$3,020
Sun 14/1218:10SAT - MEL
2 stops44h 50mDelta
Sun 21/1210:10MEL - SAT
1 stop30h 25mDelta
Deal found 16/11$3,129
Fri 26/1206:37SAT - SYD
1 stop32h 53mDelta
Thu 8/114:15SYD - SAT
1 stop26h 28mDelta
Deal found 16/11$3,201
Sun 14/1207:30SAT - MEL
2 stops32h 55mAir New Zealand
Sun 21/1212:10MEL - SAT
2 stops24h 31mAir New Zealand
Deal found 16/11$3,531
Sun 14/1208:28SAT - MEL
1 stop27h 32mAmerican Airlines
Sun 21/1212:00MEL - SAT
1 stop27h 47mAmerican Airlines
Deal found 16/11$3,579
Wed 31/1206:37SAT - MEL
1 stop32h 23mDelta
Wed 7/110:10MEL - SAT
1 stop21h 33mDelta
Deal found 15/11$3,772

Cheapflights Fare Finder

 
Customise 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, Cheapflights users made 647,157 searches. Data last updated 18 November 2025.
Use the filters below to find and compare flights from San Antonio to Australia that are best for you.

Fly from

San Antonio

Fly to

Australia

Route

Depart

Return

Price

San AntonioMelbourne

SAT - MEL

SATMEL

San Antonio

Sat 21/2

18:25-17:15

2 stops29h 50m

Melbourne

Sat 7/3

12:00-23:03

1 stop28h 03m

$1,460

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 11/3

16:10-07:25

1 stop23h 15m

Sydney Kingsford Smith

Tue 17/3

13:15-23:17

1 stop26h 02m

$1,480

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 4/12

16:59-08:30

1 stop22h 31m

Sydney Kingsford Smith

Sun 7/12

10:40-14:50

1 stop21h 10m

$1,514

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 3/12

16:59-08:30

1 stop22h 31m

Sydney Kingsford Smith

Thu 11/12

10:40-21:19

2 stops27h 39m

$1,520

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 16/3

10:45-07:25

2 stops28h 40m

Sydney Kingsford Smith

Thu 19/3

13:15-22:32

2 stops25h 17m

$1,520

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 16/4

16:10-06:35

1 stop23h 25m

Sydney Kingsford Smith

Thu 23/4

09:25-14:42

1 stop20h 17m

$1,921

San AntonioMelbourne

SAT - MEL

SATMEL

San Antonio

Wed 31/12

15:00-12:40

2 stops28h 40m

Melbourne

Wed 7/1

16:40-12:18

2 stops36h 38m

$2,097

San AntonioMelbourne

SAT - MEL

SATMEL

San Antonio

Sat 21/2

13:40-05:00

1 stop22h 20m

Melbourne

Sat 7/3

16:05-18:02

1 stop18h 57m

$2,197

San AntonioBrisbane

SAT - BNE

SATBNE

San Antonio

Sat 28/2

15:21-16:05

2 stops32h 44m

Brisbane

Wed 4/3

19:40-23:08

1 stop19h 28m

$2,605

San AntonioMelbourne

SAT - MEL

SATMEL

San Antonio

Sun 15/2

15:21-14:35

2 stops30h 14m

Melbourne

Thu 19/2

12:00-23:08

1 stop28h 08m

$2,611

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 41 results
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Best time to book a flight from San Antonio to Australia

Have a flexible travel schedule? Discover the best time to fly to Australia from San Antonio with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Australia

What is the cheapest month to book a flight from San Antonio to Australia?

Currently, May is the cheapest month in which you can book a flight from San Antonio to Australia (average of $642). Flying from San Antonio to Australia in June is currently the most expensive (average of $1,466). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to AU?

Find hourly flight availability from San Antonio to Australia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 November 2025.

One of the essential ways to save on airfare from San Antonio to Australia is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 61% on airfare.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Antonio to Australia?

    Located just 12.2 km from the city centre, San Antonio (SAT) is the airport most travellers will use when flying to Australia from San Antonio.

  • How long is the flight from San Antonio to Australia?

    There are many flights that can get you from San Antonio to Australia in 22h 20m. Fly via Qantas Airways, Delta, or American Airlines to get the fastest option. There are 14182 km between San Antonio and Australia. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from San Antonio to Australia?

  • Can I find deals for flights from San Antonio to Australia that include hotel bookings?

    Yes. In addition to deals on San Antonio to Australia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Australia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Australia.

  • Can I find deals for business class flights from San Antonio to Australia?

    Yes. Cheapflights offers flight deals from San Antonio to Australia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Australia?

    Currently, May is the cheapest month in which you can book a flight from San Antonio to Australia (average of $642). Flying from San Antonio to Australia in June is currently the most expensive (average of $1,466). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Can Cheapflights find flights from San Antonio to Australia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Antonio to Australia, users can toggle the no change fees filter when performing a flight search.

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Yes, Cheapflights offers price alerts on San Antonio to Australia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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