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Cheap flights from Sydney to San Antonio from $1,644

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAT
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sydney to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Sydney (SYD) to San Antonio (SAT). 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 20 November 2025.

Round-trip from

$2,247

One-way from

$1,644

Popular in

January

Cheapest in

April

Average price

$1,819
Delta
  • Delta
  • 12/3-16/3
  • 4 total stops
  • 54h 30m total
  • Sydney to San Antonio
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2/1
  • 2/1
  • 3 total stops
  • 46h 14m total
  • Sydney to San Antonio
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($1,262 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($193 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find flight deals from Sydney to San Antonio

Enter your travel dates to find the best prices.

Best flights from Sydney to San Antonio
Discover carefully curated flight deals from Sydney to San Antonio that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 November 2025.

Sat 9/520:55SYD - SAT
2 stops31h 08mANA
Mon 18/507:00SAT - SYD
2 stops45h 15mANA
Deal found 20/11$1,970
Sat 9/509:10SYD - SAT
1 stop28h 38mAmerican Airlines
Mon 18/515:15SAT - SYD
1 stop24h 50mAmerican Airlines
Deal found 20/11$2,141
Thu 12/313:15SYD - SAT
1 stop26h 02mDelta
Mon 16/316:10SAT - SYD
1 stop23h 15mDelta
Deal found 18/11$2,247
Sat 9/517:50SYD - SAT
2 stops20h 48mMultiple Airlines
Mon 18/514:39SAT - SYD
3 stops27h 41mMultiple Airlines
Deal found 20/11$4,280
Sat 3/121:40SYD - SAT
2 stops24h 25mAlaska Airlines
Sat 10/118:46SAT - SYD
2 stops31h 59mAlaska Airlines
Deal found 19/11$4,327
Sat 3/112:10SYD - SAT
1 stop28h 49mUnited Airlines
Sat 10/114:05SAT - SYD
2 stops50h 10mUnited Airlines
Deal found 19/11$5,345

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sydney to San Antonio 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 20 November 2025.
Use the filters below to find and compare flights from Sydney to San Antonio that are best for you.

Fly from

Sydney

Fly to

San Antonio

Route

Depart

Return

Price

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 9/5

20:55-13:03

2 stops31h 08m

San Antonio

Mon 18/5

07:00-19:15

2 stops45h 15m

$1,970

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 9/5

09:10-22:48

1 stop28h 38m

San Antonio

Mon 18/5

15:15-07:05

1 stop24h 50m

$2,141

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 12/3

13:15-23:17

1 stop26h 02m

San Antonio

Mon 16/3

16:10-07:25

1 stop23h 15m

$2,247

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 9/5

17:50-23:38

2 stops20h 48m

San Antonio

Mon 18/5

14:39-09:20

3 stops27h 41m

$4,280

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 3/1

21:40-05:05

2 stops24h 25m

San Antonio

Sat 10/1

18:46-19:45

2 stops31h 59m

$4,327

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 3/1

12:10-23:59

1 stop28h 49m

San Antonio

Sat 10/1

14:05-09:15

2 stops50h 10m

$5,345

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Tue 6/1

18:55-13:44

3 stops35h 49m

$1,771

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 5/1

07:35-13:44

3 stops47h 09m

$2,138

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Sat 3/1

08:00-05:35

3 stops38h 35m

$2,402

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Fri 2/1

22:00-13:44

2 stops32h 44m

$2,443

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 13 results
1
2

Best time to book a flight from Sydney to San Antonio

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

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

Currently, March is the cheapest month in which you can book a flight from Sydney to San Antonio (average of $1,185). Flying from Sydney to San Antonio in July is currently the most expensive (average of $1,711). 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.

What is the cheapest time of day to fly from SYD to SAT?

Find hourly flight availability from Sydney to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 November 2025.

When flying from Sydney to San Antonio, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 31% versus a flight in the afternoon.

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated 20 November 2025.
See what other customers who have flown with United Airlines from Sydney to San Antonio have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,029 reviews
Check prices

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,029 reviews
United Airlines
7.4
Good
9,029 reviews
Check prices

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Sydney to San Antonio. 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 Sydney to San Antonio?

    ANA, American Airlines, and Delta can get you from Sydney to San Antonio in just under 26h 02m. Your travel time can differ by up to 5h 06m. There are 13530 km between Sydney and San Antonio. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from Sydney to San Antonio round-trip?

    Flying on United Airlines is currently your cheapest option to San Antonio, with prices starting at $1,561. United Airlines is priced at 20% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Sydney to San Antonio (average of $1,185). Flying from Sydney to San Antonio in July is currently the most expensive (average of $1,711). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Sydney to San Antonio

Discover the top airline that operate flights from Sydney to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,561Average$2,104FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Deals for Sydney to San Antonio flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to San Antonio from Sydney by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to San Antonio from Sydney? 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 Sydney to San Antonio become cheaper?

Yes! Start tracking prices for Sydney to San Antonio flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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