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Cheap flights from Sydney to San Antonio from $1,669

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — SAT
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 18 December 2025.

Mon 9/211:45SYD - SAT
2 stops42h 34mAir New Zealand
Mon 16/214:10SAT - SYD
2 stops25h 35mAir New Zealand
Deal found 15/12$1,669
Mon 20/411:55SYD - SAT
2 stops24h 15mMultiple Airlines
Thu 7/519:34SAT - SYD
2 stops22h 11mMultiple Airlines
Deal found 17/12$1,746
Mon 20/409:15SYD - SAT
1 stop20h 27mDelta
Thu 7/505:30SAT - SYD
2 stops34h 05mDelta
Deal found 17/12$1,861
Mon 9/211:20SYD - SAT
1 stop28h 34mAmerican Airlines
Mon 16/217:45SAT - SYD
2 stops22h 15mAmerican Airlines
Deal found 15/12$2,063
Mon 20/410:20SYD - SAT
2 stops27h 58mUnited Airlines
Thu 7/518:02SAT - SYD
2 stops21h 58mUnited Airlines
Deal found 17/12$2,154
Thu 19/211:20SYD - SAT
2 stops22h 35mAir Canada
Mon 23/216:45SAT - SYD
2 stops23h 50mAir Canada
Deal found 16/12$2,340
Mon 9/210:40SYD - SAT
1 stop30h 03mDelta
Mon 16/216:42SAT - SYD
1 stop22h 48mDelta
Deal found 15/12$2,084
Mon 20/412:00SYD - SAT
1 stop18h 46mAmerican Airlines
Thu 7/507:00SAT - SYD
1 stop33h 05mAmerican Airlines
Deal found 17/12$2,137
Thu 19/217:45SYD - SAT
2 stops37h 14mAmerican Airlines
Mon 23/215:08SAT - SYD
1 stop22h 47mAmerican Airlines
Deal found 16/12$2,347

Find 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 18 December 2025.

Round-trip from

$1,669

Popular in

December

Cheapest in

April

Average price

$2,515
Air New Zealand
  • Air New Zealand
  • 9/2-16/2
  • 4 total stops
  • 68h 09m total
  • Sydney to San Antonio
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($404 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($111 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 18 December 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

Mon 9/2

11:45-13:19

2 stops42h 34m

San Antonio

Mon 16/2

14:10-08:45

2 stops25h 35m

$1,669

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

11:55-21:10

2 stops24h 15m

San Antonio

Thu 7/5

19:34-08:45

2 stops22h 11m

$1,746

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

09:15-14:42

1 stop20h 27m

San Antonio

Thu 7/5

05:30-06:35

2 stops34h 05m

$1,861

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 9/2

11:20-22:54

1 stop28h 34m

San Antonio

Mon 16/2

17:45-09:00

2 stops22h 15m

$2,063

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 9/2

10:40-23:43

1 stop30h 03m

San Antonio

Mon 16/2

16:42-08:30

1 stop22h 48m

$2,084

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

12:00-15:46

1 stop18h 46m

San Antonio

Thu 7/5

07:00-07:05

1 stop33h 05m

$2,137

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Mon 20/4

10:20-23:18

2 stops27h 58m

San Antonio

Thu 7/5

18:02-07:00

2 stops21h 58m

$2,154

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 19/2

11:20-16:55

2 stops22h 35m

San Antonio

Mon 23/2

16:45-09:35

2 stops23h 50m

$2,340

SydneySan Antonio

SYD - SAT

SYDSAT

Sydney Kingsford Smith

Thu 19/2

17:45-13:59

2 stops37h 14m

San Antonio

Mon 23/2

15:08-06:55

1 stop22h 47m

$2,347

Flights are sorted by cheapest return flights first.

Deals found on 15/12

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, May is the cheapest month in which you can book a flight from Sydney to San Antonio (average of $846). Flying from Sydney to San Antonio in July is currently the most expensive (average of $1,675). 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 18 December 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.

How much does it cost for a return flight from Sydney to San Antonio?

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 18 December 2025.
See what other customers who have flown with Qantas Airways and 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.
Qantas Airways
7.5
Good
946 reviews
Check prices

Entertainment

7.2

Food

7.0

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.5

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
Qantas Airways
7.5
Good
946 reviews
Qantas Airways
7.5
Good
946 reviews
Check prices

Entertainment

7.2

Food

7.0

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.5

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.
United Airlines
7.4
Good
9,092 reviews
Qantas Airways
7.5
Good
946 reviews
Check prices

Entertainment

7.2

Food

7.0

Crew

8.1

Boarding

7.7

Overall

7.5

Comfort

7.5

Reviews

1 / 20
6.0
Good

Marco,Dec 2025

BOS - LAX

There was no WiFi or tv traveling from LAX to Sydney. Way too long of a flight to have nothing.

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?

    Air New Zealand, Delta, and American Airlines can get you from Sydney to San Antonio in just under 20h 27m. Your travel time can differ by up to 22h 07m. 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 are the cheapest airlines flying from Sydney to San Antonio round-trip?

    Flying on United Airlines is currently your cheapest option to San Antonio, with prices starting at $1,265. Another option worth looking into is Qantas Airways, starting at $1,335 round trip. United Airlines is priced at 29% 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, May is the cheapest month in which you can book a flight from Sydney to San Antonio (average of $846). Flying from Sydney to San Antonio in July is currently the most expensive (average of $1,675). 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

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Top 2 airlines flying from Sydney to San Antonio

Discover the top 2 airlines 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 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,265Average$2,052FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Qantas AirwaysCheapest$1,335Average$1,532FlexibilityNo cancel feeOn-time74%
Search Qantas Airways 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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