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Cheap flights from Austin to Sydney from $782

AUS — SYD
10 Oct — 17 Oct1
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

Wed 21/1010:25 -
2 stops29h 55m
Wed 28/1010:20 -
2 stops40h 51m
Deal found 6/9$1,326
Mon 2/1115:23 -
1 stop24h 37m
Mon 9/1119:15 -
2 stops36h 01m
Deal found 7/9$1,401
Tue 3/1116:30 -
2 stops24h 05m
Wed 11/1111:20 -
2 stops23h 21m
Deal found 9/9$1,402
Tue 3/1114:24 -
2 stops26h 11m
Mon 7/1216:00 -
2 stops36h 11m
Deal found 10/9$1,416
Sun 20/905:30 -
2 stops34h 50m
Mon 19/1010:20 -
1 stop35h 41m
Deal found 9/9$1,422
Wed 9/905:27 -
2 stops34h 53m
Mon 14/909:20 -
2 stops40h 46m
Deal found 8/9$1,436
Sat 17/1011:40 -
2 stops52h 40m
Fri 23/1010:20 -
1 stop35h 41m
Deal found 10/9$1,459
Tue 20/1009:00 -
1 stop31h 20m
Sat 24/1010:20 -
2 stops40h 51m
Deal found 6/9$1,461

Find flight deals from Austin to Sydney

Round-trip from

$1,326

One-way from

$782

Popular in

December

Cheapest in

August

Average price

$1,858
Air Canada
  • Air Canada
  • 21/10-28/10
  • 4 total stops
  • 70h 46m total
  • Austin to Sydney
Search Deals
20/10-31/12
  • 20/10-31/12
  • 2 total stops
  • 43h 09m total
  • Austin to Sydney
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($58 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

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

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Route

Depart

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Price

Cheapest return flight

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Mon 7/12

15:23-09:00

1 stop24h 37m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$944

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Thu 19/11

13:08-21:30

3 stops39h 22m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$944
Fastest return journey

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Wed 9/12

19:03-09:20

1 stop21h 17m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$966

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Tue 8/12

13:15-09:20

1 stop27h 05m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$966

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Sun 6/12

13:00-09:20

2 stops27h 20m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$966

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Fri 25/12

15:10-11:05

2 stops26h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$972

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Thu 11/2

17:36-11:05

2 stops24h 29m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$982

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Wed 7/10

07:00-07:55

2 stops32h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,105

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Sat 3/10

09:24-05:55

1 stop29h 31m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,131

AustinSydney

AUS Austin Bergstrom - SYD Sydney Kingsford Smith

AUSSYD

Austin Bergstrom

Thu 11/2

12:49-09:35

3 stops51h 46m

Sydney Kingsford Smith

Wed 31/12

00:00-08:00

Nonstop0h 00m

$1,138

Flights are sorted by cheapest return flights first.

Deals found on 6/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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

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, August is the cheapest month in which you can book a flight from Austin to Sydney (average of $1,368). Flying from Austin to Sydney in December is currently the most expensive (average of $2,222). 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 below average for this route at the moment.

Austin to Sydney flights typically cost between $1,829 and $2,009 in October.
The cheapest return price found within the last 5 days was $1,326 on Air Canada (21 Oct–28 Oct).

Related info for your journey

  • How long is the flight from Austin to Sydney?

    Airlines like Qantas Airways and United Airlines fly from Austin to Sydney in about 21h 39m. The time it takes to get you to your destination can typically vary by up to 6h 20m. Airlines will cover a distance of 13630 km. This flight may include one or multiple stops.

  • 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, August is the cheapest month in which you can book a flight from Austin to Sydney (average of $1,368). Flying from Austin to Sydney in December is currently the most expensive (average of $2,222). 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
Manly
Katoomba
Lithgow
Cronulla
Terrigal
Leura
Randwick
Bondi Beach
Coogee

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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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