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$539+ Cheap flights from San Antonio (SAT) to Sydney (SYD)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SYD
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
1 adult, Economy
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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 November 20, 2025.

This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:59 pmSAT - SYD
1 stop22h 31mDelta
Thu 12/1110:40 amSYD - SAT
1 stop21h 10mDelta
Deal found 11/17$986
This Mytrip deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:07 pmSAT - SYD
2 stops33h 08mMultiple Airlines
Thu 12/116:00 amSYD - SAT
3 stops34h 26mMultiple Airlines
Deal found 11/17$1,274
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:06 pmSAT - SYD
1 stop22h 24mDelta
Sun 11/3010:40 amSYD - SAT
1 stop30h 37mDelta
Deal found 11/19$1,638
This United Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:59 pmSAT - SYD
1 stop20h 01mUnited Airlines
Thu 1/811:20 amSYD - SAT
2 stops27h 01mUnited Airlines
Deal found 11/17$1,967
This Cheapflightsfares deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/245:52 pmSAT - SYD
2 stops33h 58mQantas Airways
Sun 11/3010:00 pmSYD - SAT
2 stops41h 55mQantas Airways
Deal found 11/19$1,998
This Delta deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/266:37 amSAT - SYD
1 stop32h 53mDelta
Thu 1/82:15 pmSYD - SAT
1 stop26h 28mDelta
Deal found 11/17$2,123

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 November 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$963
(Delta)

One-way from

$539
(Delta)

Popular in

December

Cheapest in

March

Average price

$1,395
Provider with most accurate pricing for San Antonio-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Sydney Kingsford Smith flights.
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From San Antonio to Sydney Kingsford Smith
Search Deals
One-way flight from San Antonio to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($243 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated November 20, 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 3/11

4:10 pm-7:25 am

1 stop23h 15m

Sydney Kingsford Smith

Tue 3/17

9:40 am-2:40 pm

1 stop21h 00m

$963

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 12/3

4:59 pm-8:30 am

1 stop22h 31m

Sydney Kingsford Smith

Thu 12/11

10:40 am-2:50 pm

1 stop21h 10m

$986

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sun 2/15

10:57 am-6:50 am

2 stops26h 53m

Sydney Kingsford Smith

Thu 2/19

10:40 am-2:46 pm

1 stop21h 06m

$990

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 3/16

12:25 pm-7:25 am

2 stops27h 00m

Sydney Kingsford Smith

Thu 3/19

1:15 pm-12:45 am

2 stops27h 30m

$990

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 2/6

6:30 am-8:30 am

2 stops33h 00m

Sydney Kingsford Smith

Tue 2/10

10:40 am-2:43 pm

1 stop21h 03m

$990

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 4/15

6:05 pm-6:35 am

2 stops21h 30m

$539

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 12/1

6:30 am-8:30 am

2 stops33h 00m

$552

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Wed 4/15

5:00 am-6:55 am

3 stops34h 55m

$643

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 12/1

1:50 pm-8:15 pm

3 stops37h 25m

$673

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 12/18

6:35 am-6:55 am

2 stops31h 20m

$1,233

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

Compare providers for flights from San Antonio to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Sydney in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Antonio-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Antonio-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 $418). Flying from San Antonio to Sydney in December is currently the most expensive (average of $995). 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 SAT to SYD?

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

It’s optimal to fly from San Antonio to Sydney in the evening. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from San Antonio to Sydney?

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated November 20, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from San Antonio to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,029 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,047 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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?

    A quick flight from San Antonio to Sydney can take about 23h 15m. Delta provides one of the quickest options available for as low as $963. Airlines will cover a distance of 8407 mi.

  • What are the cheapest airlines flying from San Antonio to Sydney round-trip?

    According to our current data, American Airlines ($867), United Airlines ($926), and Delta ($978) offers the cheapest pricing from San Antonio to Sydney. Users have found that American Airlines is 35% cheaper than the other options available to this destination.

  • 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 vacation 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 $418). Flying from San Antonio to Sydney in December is currently the most expensive (average of $995). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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Top 3 airlines flying from San Antonio to Sydney

Discover the top 3 airlines that operate flights from San Antonio to Sydney. 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 2,558,603 searches. Data last updated November 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$867Average$1,497FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$926Average$1,163FlexibilityNo cancel feeOn-time69%
DeltaCheapest$978Average$1,395FlexibilityNo cancel feeOn-timeN/A

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