How long is the flight from San Antonio to Sydney?

A quick flight from San Antonio to Sydney can take about 21h 10m. Delta provides one of the quickest options available for as low as $965. 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, Delta ($652), Qantas Airways ($799), and American Airlines ($867) offers the cheapest pricing from San Antonio to Sydney. Users have found that Delta is 52% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Sydney ranges from 2.0 - 5.1 inches per month. March is typically the wettest month, when rainfall can reach 5.1 in. September is typically the driest time to visit Sydney when rainfall is around 2.0 in.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from San Antonio to Sydney?

When booking a flight from San Antonio to Sydney, you may want to consider flying on United Airlines, American Airlines or Delta as they are the most popular for this route.

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.

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.

$965+ Flights from San Antonio to Sydney

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

Airfare is below average for this route at the moment. San Antonio to Sydney flights typically cost between $1,544 and $2,650 in February. The cheapest round-trip price found within the last 3 days was $957 on Qantas Airways (Feb 2-Feb 10).

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Cheap 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 December 16, 2025.

Fri 12/263:19 pmSAT - SYD

1 stop24h 41mQantas Airways

Thu 1/85:50 pmSYD - SAT

2 stops38h 55mQantas Airways

Deal found 12/16

$2,200

Fri 12/268:52 amSAT - SYD

1 stop28h 28mUnited Airlines

Thu 1/811:50 amSYD - SAT

1 stop22h 43mUnited Airlines

Deal found 12/14

$2,214

Fri 12/264:10 pmSAT - SYD

1 stop23h 20mDelta

Thu 1/82:15 pmSYD - SAT

1 stop26h 28mDelta

Deal found 12/16

$2,314

Mon 12/226:00 pmSAT - SYD

2 stops27h 50mQantas Airways

Sat 1/38:55 amSYD - SAT

2 stops30h 52mQantas Airways

Deal found 12/16

$2,559

Thu 12/183:54 pmSAT - SYD

1 stop24h 21mAir New Zealand

Sat 12/208:15 pmSYD - SAT

2 stops40h 26mAir New Zealand

Deal found 12/14

$2,821

Sat 12/208:52 amSAT - SYD

1 stop31h 23mAir New Zealand

Mon 12/2211:45 amSYD - SAT

2 stops26h 41mAir New Zealand

Deal found 12/16

$2,948

Thu 12/186:35 amSAT - SYD

2 stops34h 00mMultiple Airlines

Sat 12/204:00 pmSYD - SAT

3 stops30h 35mMultiple Airlines

Deal found 12/14

$3,076

Best flights from San Antonio to Sydney
Discover carefully curated flight deals from San Antonio to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 16, 2025.

Tue 2/34:40 pmSAT - SYD

1 stop21h 10mDelta

Tue 2/172:15 pmSYD - SAT

1 stop26h 28mDelta

Deal found 12/16

$965

Sat 2/214:45 pmSAT - SYD

2 stops45h 50mQantas Airways

Sat 2/2811:20 amSYD - SAT

1 stop28h 31mQantas Airways

Deal found 12/16

$1,124

Fri 2/204:42 pmSAT - SYD

1 stop22h 48mDelta

Wed 3/259:40 amSYD - SAT

1 stop20h 52mDelta

Deal found 12/15

$987

Sat 2/215:30 amSAT - SYD

2 stops32h 20mDelta

Tue 3/241:15 pmSYD - SAT

2 stops23h 18mDelta

Deal found 12/15

$992

Mon 2/22:35 pmSAT - SYD

1 stop25h 25mQantas Airways

Tue 2/105:45 pmSYD - SAT

1 stop22h 09mQantas Airways

Deal found 12/16

$1,135

Thu 1/291:03 pmSAT - SYD

2 stops26h 27mDelta

Thu 2/510:40 amSYD - SAT

2 stops26h 45mDelta

Deal found 12/14

$1,014

Last-minute flights from San Antonio to Sydney
Discover last-minute flight deals from San Antonio to Sydney. Data last updated December 16, 2025 and is based on user searches.

Fri 12/263:19 pmSAT - SYD

1 stop24h 41mQantas Airways

Thu 1/85:50 pmSYD - SAT

2 stops38h 55mQantas Airways

Deal found 12/16

$2,200

Fri 12/268:52 amSAT - SYD

1 stop28h 28mUnited Airlines

Thu 1/811:50 amSYD - SAT

1 stop22h 43mUnited Airlines

Deal found 12/14

$2,214

Fri 1/92:35 pmSAT - SYD

2 stops26h 15mQantas Airways

Thu 1/1511:20 amSYD - SAT

1 stop28h 34mQantas Airways

Deal found 12/16

$2,068

Tue 1/135:59 pmSAT - SYD

1 stop20h 01mUnited Airlines

Tue 1/2712:10 pmSYD - SAT

2 stops25h 34mUnited Airlines

Deal found 12/16

$1,168

Tue 1/134:40 pmSAT - SYD

1 stop22h 50mDelta

Tue 1/272:15 pmSYD - SAT

1 stop26h 28mDelta

Deal found 12/16

$1,641

Wed 1/145:59 pmSAT - SYD

1 stop20h 01mUnited Airlines

Wed 1/2111:50 amSYD - SAT

1 stop26h 31mUnited Airlines

Deal found 12/16

$1,163

Wed 1/142:35 pmSAT - SYD

2 stops33h 55mQantas Airways

Wed 1/215:30 pmSYD - SAT

2 stops22h 24mQantas Airways

Deal found 12/16

$1,794

Thu 1/294:40 pmSAT - SYD

1 stop22h 50mDelta

Thu 2/52:15 pmSYD - SAT

1 stop26h 28mDelta

Deal found 12/14

$1,009

One-way flights from San Antonio to Sydney
Search for one-way flight options from San Antonio to Sydney. Find affordable one-way fares based on user searches. Data last updated December 16, 2025.

Fri 1/22:13 pmSAT - SYD

2 stops38h 32mAir New Zealand

Deal found 12/16

$1,334

Fri 1/211:28 amSAT - SYD

1 stop26h 32mUnited Airlines

Deal found 12/16

$1,600

Fri 1/25:15 amSAT - SYD

3 stops34h 30mMultiple Airlines

Deal found 12/16

$1,818

Find flight deals from San Antonio to Sydney

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$957 (oojo)
Popular in	December
Cheapest in	March
Average price	$2,164

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.

Search Deals

From San Antonio to Sydney Kingsford Smith

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($324 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($73 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Tue 2/3

4:40 pm-6:50 am

1 stop21h 10m

Sydney Kingsford Smith

Tue 2/17

2:15 pm-11:43 pm

1 stop26h 28m

$965

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 2/20

4:42 pm-8:30 am

1 stop22h 48m

Sydney Kingsford Smith

Wed 3/25

9:40 am-2:32 pm

1 stop20h 52m

$987

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sat 2/21

5:30 am-6:50 am

2 stops32h 20m

Sydney Kingsford Smith

Tue 3/24

1:15 pm-8:33 pm

2 stops23h 18m

$992

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Thu 1/29

1:03 pm-8:30 am

2 stops26h 27m

Sydney Kingsford Smith

Thu 2/5

10:40 am-8:25 pm

2 stops26h 45m

$1,014

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Sat 2/21

4:45 pm-7:35 am

2 stops45h 50m

Sydney Kingsford Smith

Sat 2/28

11:20 am-10:51 pm

1 stop28h 31m

$1,124

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Mon 2/2

2:35 pm-9:00 am

1 stop25h 25m

Sydney Kingsford Smith

Tue 2/10

5:45 pm-10:54 pm

1 stop22h 09m

$1,135

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 1/2

2:13 pm-9:45 pm

2 stops38h 32m

$1,334

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 1/2

11:28 am-7:00 am

1 stop26h 32m

$1,600

San AntonioSydney

SAT - SYD

SATSYD

San Antonio

Fri 1/2

5:15 am-8:45 am

3 stops34h 30m

$1,818

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Compare providers for flights from San Antonio to Sydney

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust 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 $431). Flying from San Antonio to Sydney in December is currently the most expensive (average of $970). 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?

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

Peruse reviews from past customers who have flown with Delta, Qantas Airways, and United 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

8,009 reviews

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

8,009 reviews

Delta

7.9

Good

8,009 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Qantas Airways

7.5

Good

946 reviews

Delta

7.9

Good

8,009 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,094 reviews

Delta

7.9

Good

8,009 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

American Airlines

7.2

Good

11,047 reviews

Delta

7.9

Good

8,009 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

How long is the flight from San Antonio to Sydney?
A quick flight from San Antonio to Sydney can take about 21h 10m. Delta provides one of the quickest options available for as low as $965. 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, Delta ($652), Qantas Airways ($799), and American Airlines ($867) offers the cheapest pricing from San Antonio to Sydney. Users have found that Delta is 52% 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 $431). Flying from San Antonio to Sydney in December is currently the most expensive (average of $970). 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

Parramatta

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Coogee

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Other flights to Sydney

Top 4 airlines flying from San Antonio to Sydney

Airline	Cheapest	Average	Flexibility	On-time
Qantas Airways	Cheapest$799	Average$2,164	FlexibilityNo cancel fee	On-time74%
Delta	Cheapest$839	Average$1,458	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$867	Average$1,416	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$926	Average$1,126	FlexibilityNo cancel fee	On-time69%

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$965+ Cheap flights from San Antonio (SAT) to Sydney (SYD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Sydney with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from San Antonio to Sydney

Cheapest flights from San Antonio to SydneyExplore 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 December 16, 2025.

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 December 16, 2025.

Find flight deals from San Antonio to Sydney

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to Sydney that are best for you.

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 December.

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.

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?

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

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

Reviews of airlines servicing Sydney

Peruse reviews from past customers who have flown with Delta, Qantas Airways, and United 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.

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?

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

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

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

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

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

Traveling to a place near Sydney?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Antonio to Sydney

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Top 4 airlines flying from San Antonio to Sydney

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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 December 16, 2025.