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Cheap flights from San Antonio to Sydney from $829

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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
19 Jul — 26 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Antonio to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from San Antonio to Sydney
Explore the most affordable flight options available from San Antonio to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2026.

Sun 2/812:39
SAT
-
SYD
2 stops27h 11m
Delta
Sun 9/809:15
SYD
-
SAT
2 stops30h 11m
Delta
Deal found 17/6$1,699
Mon 14/915:09
SAT
-
SYD
1 stop24h 56m
Qantas Airways
Mon 5/1018:50
SYD
-
SAT
1 stop19h 52m
Qantas Airways
Deal found 19/6$1,787
Tue 21/719:08
SAT
-
SYD
1 stop20h 47m
Qantas Airways
Tue 4/817:50
SYD
-
SAT
1 stop20h 39m
Qantas Airways
Deal found 17/6$1,831
Mon 14/913:45
SAT
-
SYD
1 stop26h 10m
Air New Zealand
Mon 5/1011:20
SYD
-
SAT
1 stop26h 39m
Air New Zealand
Deal found 15/6$1,848
Wed 23/916:12
SAT
-
SYD
2 stops23h 48m
Air New Zealand
Mon 19/1010:30
SYD
-
SAT
2 stops21h 23m
Air New Zealand
Deal found 15/6$1,854
Thu 17/915:09
SAT
-
SYD
1 stop24h 56m
Qantas Airways
Tue 20/1018:50
SYD
-
SAT
1 stop19h 52m
Qantas Airways
Deal found 17/6$1,857
Mon 14/913:45
SAT
-
SYD
2 stops26h 10m
United Airlines
Mon 5/1011:20
SYD
-
SAT
1 stop22h 31m
United Airlines
Deal found 16/6$1,862
Wed 23/909:24
SAT
-
SYD
1 stop30h 31m
United Airlines
Mon 19/1010:30
SYD
-
SAT
2 stops24h 50m
United Airlines
Deal found 17/6$1,864
Sun 2/815:09
SAT
-
SYD
1 stop24h 56m
American Airlines
Sun 9/809:10
SYD
-
SAT
1 stop20h 12m
American Airlines
Deal found 17/6$1,878

Find flight deals from San Antonio to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 June 2026.

Round-trip from

$1,699

One-way from

$829

Popular in

December

Cheapest in

January

Average price

$2,151
Delta
  • Delta
  • 2/8-9/8
  • 4 total stops
  • 57h 22m total
  • San Antonio to Sydney
Search Deals
8/11
  • 8/11
  • 3 total stops
  • 45h 44m total
  • San Antonio to Sydney
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($139 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Antonio to Sydney 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 19 June 2026.
Use the filters below to find and compare flights from San Antonio to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 23/9

09:24-06:55

1 stop30h 31m

Sydney Kingsford Smith

Mon 19/10

10:30-19:20

2 stops24h 50m

$1,862

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 14/9

13:45-06:55

2 stops26h 10m

Sydney Kingsford Smith

Mon 5/10

10:30-19:20

2 stops24h 50m

$1,862
Fastest return journey

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 1/9

17:59-07:00

2 stops22h 01m

Sydney Kingsford Smith

Tue 20/10

11:20-17:51

1 stop22h 31m

$1,862

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 4/11

13:35-09:15

2 stops26h 40m

Sydney Kingsford Smith

Fri 11/12

11:20-19:23

2 stops25h 03m

$1,934
Cheapest one-way

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 30/6

06:30-06:50

2 stops33h 20m

$891

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sun 8/11

20:21-09:00

2 stops43h 39m

$992
Fastest single journey

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 30/6

15:10-07:05

1 stop24h 55m

$1,051

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 30/6

07:43-06:55

2 stops32h 12m

$1,055

Flights are sorted by cheapest return flights first.

Deals found on 16/6

Sorted by cheapest first

Best time to book a flight from San Antonio to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney 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 Sydney

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

Currently, January is the cheapest month in which you can book a flight from San Antonio to Sydney (average of $1,373). Flying from San Antonio to Sydney in December is currently the most expensive (average of $3,081). 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.

How much does it cost for a return flight from San Antonio to Sydney?

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Airlines like United Airlines fly from San Antonio to Sydney in about 30h 31m. The time it takes to get you to your destination can typically vary by up to . There are 13530 km between San Antonio and Sydney.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to Sydney 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 Sydney?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Sydney (average of $1,373). Flying from San Antonio to Sydney in December is currently the most expensive (average of $3,081). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Katoomba
Cronulla
Manly
Terrigal
Lithgow
Randwick
Bondi Beach
Leura
Coogee

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How does Cheapflights help users find flights from San Antonio to Sydney?

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Why should you use Cheapflights to find cheap flight tickets from San Antonio to Sydney?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Sydney from San Antonio.

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

Need flexible booking options for your flight to Sydney from San Antonio? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from San Antonio to Sydney become cheaper?

Yes, Cheapflights offers price alerts on San Antonio to Sydney 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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