Cheap flights from San Antonio to Sydney from $1,677

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

$1,677

Popular in

June

Cheapest in

April

Average price

$2,199
United Airlines
  • United Airlines
  • 24/9-1/10
  • 3 total stops
  • 45h 35m total
  • San Antonio to Sydney
Highest demand for flights based on searches. 5% potential increase in price ($176 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease ($56 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from San Antonio to Sydney

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 12 September 2025.

Wed 24/916:22SAT - SYD
2 stops23h 38mUnited Airlines
Wed 1/1010:20SYD - SAT
1 stop21h 57mUnited Airlines
Deal found 11/9$1,677
Tue 4/1118:05SAT - SYD
2 stops25h 25mMultiple Airlines
Tue 18/1114:10SYD - SAT
2 stops20h 50mMultiple Airlines
Deal found 10/9$1,758
Sat 25/1018:40SAT - SYD
2 stops26h 05mFiji Airways
Sat 1/1106:00SYD - SAT
2 stops29h 43mFiji Airways
Deal found 10/9$1,816
Wed 5/1106:32SAT - SYD
2 stops58h 18mMultiple Airlines
Wed 19/1117:45SYD - SAT
1 stop37h 22mMultiple Airlines
Deal found 10/9$1,825
Sun 26/1006:32SAT - SYD
2 stops32h 53mMultiple Airlines
Sun 2/1117:45SYD - SAT
1 stop37h 02mMultiple Airlines
Deal found 11/9$1,855
Sat 25/1015:26SAT - SYD
1 stop25h 34mAmerican Airlines
Sat 1/1111:20SYD - SAT
1 stop27h 22mAmerican Airlines
Deal found 10/9$1,876
Sat 18/1015:26SAT - SYD
1 stop24h 39mAmerican Airlines
Wed 29/1011:20SYD - SAT
1 stop19h 33mAmerican Airlines
Deal found 11/9$1,877
Wed 15/1016:37SAT - SYD
1 stop22h 18mAmerican Airlines
Wed 29/1013:05SYD - SAT
1 stop25h 34mAmerican Airlines
Deal found 10/9$1,879
Thu 23/1015:26SAT - SYD
1 stop24h 39mAmerican Airlines
Wed 5/1111:20SYD - SAT
1 stop20h 19mAmerican Airlines
Deal found 10/9$1,880

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 12 September 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

Wed 24/9

16:22-07:00

2 stops23h 38m

Sydney Kingsford Smith

Wed 1/10

10:20-17:17

1 stop21h 57m

$1,677

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 6/11

19:30-13:00

2 stops24h 30m

Sydney Kingsford Smith

Thu 20/11

14:00-18:46

2 stops21h 46m

$1,758

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 4/11

06:32-06:10

2 stops30h 38m

Sydney Kingsford Smith

Tue 18/11

17:45-14:07

1 stop37h 22m

$1,831

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 3/2

16:34-12:30

2 stops26h 56m

Sydney Kingsford Smith

Wed 25/2

06:00-22:55

2 stops33h 55m

$1,846

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 11/3

12:24-08:45

2 stops28h 21m

Sydney Kingsford Smith

Tue 17/3

19:15-13:03

2 stops57h 48m

$1,861

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sat 25/10

15:26-09:00

1 stop25h 34m

Sydney Kingsford Smith

Sat 1/11

11:20-22:42

1 stop27h 22m

$1,876

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 23/10

15:26-08:05

1 stop24h 39m

Sydney Kingsford Smith

Wed 5/11

11:20-14:39

1 stop20h 19m

$1,880

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sat 25/10

06:40-07:30

2 stops32h 50m

Sydney Kingsford Smith

Sat 1/11

17:45-14:47

1 stop37h 02m

$1,880

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sun 26/10

18:39-09:00

2 stops22h 21m

Sydney Kingsford Smith

Sun 2/11

11:20-18:00

2 stops22h 40m

$1,883

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 5/11

14:31-09:00

2 stops25h 29m

Sydney Kingsford Smith

Wed 19/11

11:20-18:00

2 stops23h 40m

$1,883

Flights are sorted by cheapest return flights first.

Deals found on 11/9

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

How far ahead should I book a flight from San Antonio to Sydney?

Use this chart to determine the optimal time to book a return flight from San Antonio to Sydney. Price data was last updated on 29 August 2025.

The best time to book flights from San Antonio to Sydney is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $129). Flying from San Antonio to Sydney in October is currently the most expensive (average of $171). 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.

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 23h 38m. 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 $129). Flying from San Antonio to Sydney in October is currently the most expensive (average of $171). 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
Lithgow
Randwick
Bondi Beach
Coogee
Cronulla
Leura

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