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Cheap flights from San Antonio to Sydney from $917

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
9 Jun — 16 Jun1
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 10 May 2026.

Tue 12/515:20
SAT
-
SYD
1 stop24h 35m
Air New Zealand
Thu 11/610:20
SYD
-
SAT
1 stop29h 09m
Air New Zealand
Deal found 7/5$1,667
Sun 26/705:30
SAT
-
SYD
2 stops34h 30m
United Airlines
Sat 8/810:20
SYD
-
SAT
1 stop25h 33m
United Airlines
Deal found 6/5$1,669
Sun 26/716:44
SAT
-
SYD
1 stop23h 06m
Delta
Sat 8/809:15
SYD
-
SAT
1 stop21h 10m
Delta
Deal found 6/5$1,670
Sun 26/717:57
SAT
-
SYD
2 stops22h 03m
Air New Zealand
Sat 8/809:30
SYD
-
SAT
2 stops22h 25m
Air New Zealand
Deal found 9/5$1,675
Wed 21/1018:45
SAT
-
SYD
1 stop21h 10m
United Airlines
Sun 15/1111:50
SYD
-
SAT
1 stop20h 43m
United Airlines
Deal found 6/5$1,806
Mon 14/913:45
SAT
-
SYD
2 stops26h 10m
United Airlines
Mon 5/1011:20
SYD
-
SAT
1 stop26h 38m
United Airlines
Deal found 8/5$1,808
Wed 23/913:45
SAT
-
SYD
2 stops26h 10m
United Airlines
Mon 19/1010:30
SYD
-
SAT
2 stops26h 15m
United Airlines
Deal found 7/5$1,813
Wed 4/1114:15
SAT
-
SYD
1 stop23h 45m
United Airlines
Fri 11/1212:10
SYD
-
SAT
1 stop19h 01m
United Airlines
Deal found 7/5$1,875
Fri 22/506:35
SAT
-
SYD
2 stops33h 15m
Delta
Sat 30/509:15
SYD
-
SAT
1 stop20h 55m
Delta
Deal found 7/5$1,984

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 10 May 2026.

Round-trip from

$1,669

One-way from

$917

Popular in

December

Cheapest in

January

Average price

$1,804
United Airlines
  • United Airlines
  • 26/7-8/8
  • 3 total stops
  • 60h 03m total
  • San Antonio to Sydney
Search Deals
6/6
  • 6/6
  • 2 total stops
  • 44h 36m total
  • San Antonio to Sydney
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($72 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($130 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 10 May 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

Sun 26/7

05:30-07:00

2 stops34h 30m

Sydney Kingsford Smith

Sat 8/8

10:20-20:53

1 stop25h 33m

$1,670

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 21/10

05:30-07:55

3 stops34h 25m

Sydney Kingsford Smith

Sun 15/11

11:20-19:23

2 stops25h 03m

$1,806

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 14/9

13:45-06:55

2 stops26h 10m

Sydney Kingsford Smith

Mon 5/10

11:20-21:58

1 stop26h 38m

$1,808

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 23/9

13:45-06:55

2 stops26h 10m

Sydney Kingsford Smith

Mon 19/10

11:20-17:36

1 stop22h 16m

$1,808

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 23/9

16:10-06:50

1 stop23h 40m

Sydney Kingsford Smith

Mon 19/10

10:15-22:27

2 stops28h 12m

$1,813
Fastest return journey

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 4/11

14:15-07:00

1 stop23h 45m

Sydney Kingsford Smith

Fri 11/12

12:10-14:11

1 stop19h 01m

$1,875

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 5/11

16:20-07:00

1 stop21h 40m

Sydney Kingsford Smith

Wed 2/12

11:20-19:23

2 stops25h 03m

$1,877

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 22/5

06:35-06:50

2 stops33h 15m

Sydney Kingsford Smith

Sat 30/5

09:15-00:44

2 stops30h 29m

$1,986
Cheapest one-way

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 8/6

05:30-06:55

3 stops34h 25m

$921

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 14/10

12:16-07:30

2 stops51h 14m

$949

Flights are sorted by cheapest return flights first.

Deals found on 8/5

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 $1,329). Flying from San Antonio to Sydney in December is currently the most expensive (average of $2,984). 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 26h 10m. 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 $1,329). Flying from San Antonio to Sydney in December is currently the most expensive (average of $2,984). 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
Terrigal
Lithgow
Manly
Cronulla
Bondi Beach
Leura
Randwick
Coogee

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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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