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Cheap flights from Austin to Sydney from $873

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 18/10. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
23 Aug — 30 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Austin to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Austin to Sydney
Explore the most affordable flight options available from Austin to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 July 2026.

Mon 31/809:00
AUS
-
SYD
1 stop31h 20m
Air Canada
Wed 16/909:20
SYD
-
AUS
1 stop35h 41m
Air Canada
Deal found 23/7$1,475
Thu 22/1014:38
AUS
-
SYD
1 stop25h 27m
Qantas Airways
Mon 26/1019:15
SYD
-
AUS
2 stops34h 06m
Qantas Airways
Deal found 22/7$1,502
Sun 1/1115:23
AUS
-
SYD
1 stop24h 37m
Qantas Airways
Sat 7/1119:15
SYD
-
AUS
2 stops33h 38m
Qantas Airways
Deal found 20/7$1,535
Tue 18/809:00
AUS
-
SYD
1 stop31h 20m
Air Canada
Tue 25/809:20
SYD
-
AUS
2 stops40h 25m
Air Canada
Deal found 23/7$1,592
Mon 27/714:45
AUS
-
SYD
2 stops25h 35m
Multiple Airlines
Sun 9/809:20
SYD
-
AUS
1 stop35h 42m
Multiple Airlines
Deal found 22/7$1,594
Wed 9/914:24
AUS
-
SYD
2 stops25h 56m
Multiple Airlines
Wed 30/909:20
SYD
-
AUS
1 stop35h 41m
Multiple Airlines
Deal found 24/7$1,601

Find flight deals from Austin to Sydney

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) 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 24 July 2026.

Round-trip from

$1,475

One-way from

$873

Popular in

December

Cheapest in

January

Average price

$2,049
Air Canada
  • Air Canada
  • 31/8-16/9
  • 2 total stops
  • 67h 01m total
  • Austin to Sydney
Search Deals
18/10
  • 18/10
  • 3 total stops
  • 39h 53m total
  • Austin to Sydney
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Austin 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 24 July 2026.
Use the filters below to find and compare flights from Austin to Sydney that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 4/11

15:45-09:20

1 stop24h 35m

Sydney Kingsford Smith

Fri 11/12

11:50-22:37

1 stop27h 47m

$1,880
Fastest return journey

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 1/12

17:30-07:00

1 stop20h 30m

Sydney Kingsford Smith

Fri 25/12

09:15-13:10

1 stop20h 55m

$1,942

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 1/12

12:30-08:30

2 stops27h 00m

Sydney Kingsford Smith

Fri 25/12

10:40-22:57

2 stops29h 17m

$1,949

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 27/11

19:46-09:20

1 stop20h 34m

Sydney Kingsford Smith

Fri 18/12

11:50-23:50

2 stops29h 00m

$1,957

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 16/1

12:55-08:30

1 stop26h 35m

Sydney Kingsford Smith

Sun 25/4

09:15-20:57

1 stop26h 42m

$2,075

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 9/12

13:00-06:20

2 stops24h 20m

Sydney Kingsford Smith

Tue 5/1

11:50-18:12

1 stop23h 22m

$2,106

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 26/12

05:15-07:00

1 stop32h 45m

Sydney Kingsford Smith

Fri 8/1

11:50-22:37

1 stop27h 47m

$2,336

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 8/11

16:17-07:00

1 stop21h 43m

Sydney Kingsford Smith

Wed 11/11

11:50-22:10

1 stop27h 20m

$3,259
Cheapest one-way

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 16/8

14:56-07:05

1 stop25h 09m

$890

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 18/10

22:24-07:30

2 stops41h 06m

$909

Flights are sorted by cheapest return flights first.

Deals found on 22/7

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Austin to Sydney

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

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

To ensure you get the cheapest price possible for a flight from Austin to Sydney, you should look to book at least 41 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Austin to Sydney (average of $1,415). Flying from Austin to Sydney in December is currently the most expensive (average of $2,182). 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.

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

Airfare is typical for this route at the moment.

Austin to Sydney flights typically cost between $1,398 and $2,281 in August.
The cheapest return price found within the last 5 days was $1,475 on Air Canada (31 Aug–16 Sept).

Related info for your journey

Find useful and relevant information for your journey from Austin 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 Austin to Sydney?

    Airlines like United Airlines fly from Austin to Sydney in about 24h 35m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 13630 km.

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

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

  • How can I find direct flights from Austin to Sydney?

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

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

    Yes. Cheapflights offers flight deals from Austin 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 Austin to Sydney?

    Currently, January is the cheapest month in which you can book a flight from Austin to Sydney (average of $1,415). Flying from Austin to Sydney in December is currently the most expensive (average of $2,182). 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
Penrith
Katoomba
Manly
Lithgow
Cronulla
Terrigal
Randwick
Leura
Bondi Beach
Coogee

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How does Cheapflights help users find flights from Austin to Sydney?

Cheapflights makes it easy to find Austin to Sydney flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Austin to Sydney.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Austin to Sydney, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Austin to Sydney become cheaper?

Yes, Cheapflights offers price alerts on Austin to Sydney flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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