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Cheap flights from San Antonio to Sydney from $1,475

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 11 November 2025.

Mon 1/1217:06SAT - SYD
1 stop22h 24mDelta
Mon 8/1210:40SYD - SAT
1 stop21h 10mDelta
Deal found 8/11$1,475
Thu 20/1117:06SAT - SYD
1 stop22h 24mDelta
Mon 24/1110:40SYD - SAT
1 stop21h 06mDelta
Deal found 9/11$1,509
Sat 8/1116:10SAT - SYD
1 stop23h 20mDelta
Fri 14/1110:40SYD - SAT
1 stop21h 06mDelta
Deal found 8/11$1,542
Mon 10/1106:45SAT - SYD
1 stop33h 15mMultiple Airlines
Mon 1/1211:20SYD - SAT
2 stops42h 57mMultiple Airlines
Deal found 8/11$2,005
Mon 1/1207:40SAT - SYD
2 stops32h 05mAir New Zealand
Mon 8/1209:55SYD - SAT
2 stops44h 17mAir New Zealand
Deal found 8/11$2,435
Wed 24/1206:37SAT - SYD
1 stop32h 53mDelta
Wed 31/1210:40SYD - SAT
1 stop21h 26mDelta
Deal found 9/11$2,567

Cheap 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 11 November 2025.

Round-trip from

$1,475

Popular in

December

Cheapest in

March

Average price

$2,137
Delta
  • Delta
  • 11/3-17/3
  • 2 total stops
  • 49h 17m total
  • San Antonio to Sydney
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($569 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 November 2025
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 11 November 2025.
Use the filters below to find and compare flights from San Antonio to Sydney that are best for you.

Fly from

San Antonio

Fly to

Sydney

Route

Depart

Return

Price

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 1/12

17:06-08:30

1 stop22h 24m

Sydney Kingsford Smith

Mon 8/12

10:40-14:50

1 stop21h 10m

$1,475

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 11/3

16:10-07:25

1 stop23h 15m

Sydney Kingsford Smith

Tue 17/3

09:40-14:40

1 stop21h 00m

$1,475

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 20/11

17:06-08:30

1 stop22h 24m

Sydney Kingsford Smith

Mon 24/11

10:40-14:46

1 stop21h 06m

$1,509

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 16/3

16:10-07:25

1 stop23h 15m

Sydney Kingsford Smith

Thu 19/3

09:40-14:40

1 stop21h 00m

$1,509

Flights are sorted by cheapest return flights first.

Deals found on 8/11

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, May is the cheapest month in which you can book a flight from San Antonio to Sydney (average of $640). Flying from San Antonio to Sydney in December is currently the most expensive (average of $1,522). 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 Delta fly from San Antonio to Sydney in about 22h 24m. 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, May is the cheapest month in which you can book a flight from San Antonio to Sydney (average of $640). Flying from San Antonio to Sydney in December is currently the most expensive (average of $1,522). 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
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

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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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