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Cheap flights from San Antonio to Sydney from $703

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
25 Apr — 2 May1
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 26 March 2026.

Wed 20/516:16
SAT
-
SYD
2 stops23h 44m
United Airlines
Sun 2/809:30
SYD
-
SAT
2 stops22h 25m
United Airlines
Deal found 21/3$1,982
Wed 29/419:12
SAT
-
SYD
1 stop20h 43m
American Airlines
Tue 12/509:10
SYD
-
SAT
1 stop21h 14m
American Airlines
Deal found 23/3$1,987
Wed 29/415:30
SAT
-
SYD
1 stop24h 25m
United Airlines
Tue 12/510:20
SYD
-
SAT
2 stops27h 34m
United Airlines
Deal found 22/3$1,992
Sun 24/505:30
SAT
-
SYD
3 stops34h 25m
United Airlines
Thu 30/710:20
SYD
-
SAT
1 stop29h 09m
United Airlines
Deal found 21/3$2,054
Mon 13/408:02
SAT
-
SYD
1 stop32h 03m
American Airlines
Sun 26/417:50
SYD
-
SAT
1 stop20h 39m
American Airlines
Deal found 26/3$2,117
Sat 23/516:25
SAT
-
SYD
2 stops23h 40m
American Airlines
Thu 30/712:00
SYD
-
SAT
1 stop21h 03m
American Airlines
Deal found 21/3$2,122
Mon 13/414:14
SAT
-
SYD
2 stops25h 46m
United Airlines
Sun 26/409:30
SYD
-
SAT
2 stops21h 16m
United Airlines
Deal found 24/3$2,123
Thu 21/505:30
SAT
-
SYD
3 stops34h 25m
United Airlines
Thu 30/710:20
SYD
-
SAT
1 stop29h 09m
United Airlines
Deal found 21/3$2,126

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 26 March 2026.

Round-trip from

$1,982

One-way from

$703

Popular in

December

Cheapest in

October

Average price

$2,562
United Airlines
  • United Airlines
  • 26/5-27/7
  • 4 total stops
  • 46h 07m total
  • San Antonio to Sydney
Search Deals
6/5
  • 6/5
  • 3 total stops
  • 48h 56m total
  • San Antonio to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($408 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($114 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 26 March 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

Tue 26/5

16:18-07:00

2 stops23h 42m

Sydney Kingsford Smith

Wed 29/7

09:30-17:44

2 stops23h 14m

$1,982

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 29/4

15:30-06:55

1 stop24h 25m

Sydney Kingsford Smith

Tue 12/5

10:20-22:54

2 stops27h 34m

$1,992

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 25/5

13:39-06:55

2 stops26h 16m

Sydney Kingsford Smith

Thu 30/7

10:20-00:29

1 stop29h 09m

$2,054

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 13/4

15:33-06:50

1 stop24h 17m

Sydney Kingsford Smith

Sun 26/4

09:15-14:33

1 stop20h 18m

$2,136
Fastest return journey

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 14/9

15:44-07:05

2 stops24h 21m

Sydney Kingsford Smith

Mon 5/10

18:50-22:57

2 stops20h 07m

$2,166

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 3/7

09:37-07:00

3 stops30h 23m

Sydney Kingsford Smith

Sun 19/7

09:30-19:57

2 stops25h 27m

$2,201

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 14/9

07:23-06:55

1 stop32h 32m

Sydney Kingsford Smith

Mon 5/10

11:55-13:03

2 stops41h 08m

$2,249

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 14/9

13:45-08:45

3 stops28h 00m

Sydney Kingsford Smith

Mon 5/10

09:55-19:23

2 stops25h 28m

$2,600

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 6/5

05:25-17:10

2 stops44h 45m

Sydney Kingsford Smith

Sun 10/5

20:45-23:15

2 stops41h 30m

$2,801
Cheapest one-way

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 6/5

19:54-07:30

2 stops44h 36m

$1,011

Flights are sorted by cheapest return flights first.

Deals found on 21/3

Showing 1-10 of 19 resultsSorted by cheapest first
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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 $360). Flying from San Antonio to Sydney in December is currently the most expensive (average of $1,394). 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 and Delta fly from San Antonio to Sydney in about 23h 42m. The time it takes to get you to your destination can typically vary by up to 35m. There are 13530 km between San Antonio and Sydney. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 $360). Flying from San Antonio to Sydney in December is currently the most expensive (average of $1,394). 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
Terrigal
Lithgow
Katoomba
Manly
Bondi Beach
Coogee
Cronulla
Leura
Randwick

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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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