Find flights
When to book
FAQs

Cheap flights from Austin to Sydney from $768

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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
12 Feb — 19 Feb1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Austin Bergstrom to Sydney Kingsford Smith are usually found in April or May, booked 72 days in advance, depart on a Friday or Saturday and return on a Saturday

Cheap 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 13 January 2026.

Round-trip from

$1,401

One-way from

$768

Popular in

December

Cheapest in

April

Average price

$1,497
Qantas Airways
  • Qantas Airways
  • 11/2-18/2
  • 3 total stops
  • 56h 01m total
  • Austin to Sydney
Search Deals
8/2
  • 8/2
  • 2 total stops
  • 23h 44m total
  • Austin to Sydney
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($210 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($68 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 13 January 2026.

Wed 11/218:25
AUS
-
SYD
1 stop21h 35m
Qantas Airways
Wed 18/217:50
SYD
-
AUS
2 stops34h 26m
Qantas Airways
Deal found 12/1$1,401
Tue 3/218:25
AUS
-
SYD
1 stop21h 35m
Qantas Airways
Mon 9/219:15
SYD
-
AUS
2 stops33h 27m
Qantas Airways
Deal found 12/1$1,403
Thu 26/214:19
AUS
-
SYD
2 stops37h 31m
Qantas Airways
Sun 15/311:20
SYD
-
AUS
1 stop28h 39m
Qantas Airways
Deal found 12/1$1,434
Sat 31/119:34
AUS
-
SYD
1 stop20h 26m
Qantas Airways
Tue 10/219:15
SYD
-
AUS
2 stops33h 27m
Qantas Airways
Deal found 11/1$1,486
Fri 6/218:25
AUS
-
SYD
1 stop21h 35m
Qantas Airways
Tue 17/219:15
SYD
-
AUS
2 stops39h 32m
Qantas Airways
Deal found 11/1$1,521
Wed 28/118:25
AUS
-
SYD
1 stop21h 35m
Qantas Airways
Tue 17/219:15
SYD
-
AUS
2 stops33h 01m
Qantas Airways
Deal found 11/1$1,522
Wed 28/118:25
AUS
-
SYD
1 stop21h 35m
Qantas Airways
Tue 10/219:15
SYD
-
AUS
2 stops39h 20m
Qantas Airways
Deal found 12/1$1,528
Wed 26/810:25
AUS
-
SYD
2 stops29h 55m
Air Canada
Wed 9/909:20
SYD
-
AUS
1 stop25h 27m
Air Canada
Deal found 10/1$1,621
Sun 1/218:25
AUS
-
SYD
1 stop21h 35m
Qantas Airways
Sun 8/207:05
SYD
-
AUS
2 stops32h 51m
Qantas Airways
Deal found 11/1$1,624
Tue 1/909:00
AUS
-
SYD
1 stop31h 20m
Air Canada
Tue 22/909:20
SYD
-
AUS
2 stops40h 09m
Air Canada
Deal found 11/1$1,628

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 13 January 2026.
Use the filters below to find and compare flights from Austin to Sydney that are best for you.

Fly from

Austin

Fly to

Sydney

Route

Depart

Return

Price

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 11/2

18:25-09:00

1 stop21h 35m

Sydney Kingsford Smith

Wed 18/2

17:50-11:16

2 stops34h 26m

$1,401

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Thu 5/3

18:35-17:40

2 stops30h 05m

Sydney Kingsford Smith

Sat 28/3

11:20-19:02

1 stop23h 42m

$1,401

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Thu 26/2

14:19-20:50

2 stops37h 31m

Sydney Kingsford Smith

Sun 15/3

11:20-23:59

1 stop28h 39m

$1,434

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 31/1

18:25-09:00

1 stop21h 35m

Sydney Kingsford Smith

Tue 10/2

19:15-17:35

2 stops39h 20m

$1,524

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 10/3

16:54-08:35

2 stops23h 41m

Sydney Kingsford Smith

Tue 17/3

10:20-12:19

2 stops41h 59m

$1,641

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 11/3

13:05-08:35

2 stops27h 30m

Sydney Kingsford Smith

Mon 16/3

10:25-12:19

2 stops41h 54m

$1,647

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 1/5

09:55-07:20

2 stops30h 25m

Sydney Kingsford Smith

Sun 10/5

09:20-20:15

2 stops49h 55m

$1,688

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 11/2

18:25-09:00

1 stop21h 35m

Sydney Kingsford Smith

Sun 15/2

19:15-11:16

2 stops33h 01m

$1,725

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 31/1

19:34-09:20

2 stops44h 46m

Sydney Kingsford Smith

Wed 11/2

14:05-16:09

1 stop19h 04m

$1,746

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 13/2

19:59-09:35

2 stops44h 36m

Sydney Kingsford Smith

Sat 7/3

11:20-23:44

2 stops29h 24m

$1,761

Flights are sorted by cheapest return flights first.

Deals found on 11/1

Showing 1-10 of 20 results
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?

Use this chart to determine the optimal time to book a return flight from Austin to Sydney. Price data was last updated on 9 January 2026.

To ensure you get the cheapest price possible for a flight from Austin to Sydney, you should look to book at least 72 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, May is the cheapest month in which you can book a flight from Austin to Sydney (average of $590). Flying from Austin to Sydney in December is currently the most expensive (average of $1,445). 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 AUS to SYD?

Find hourly flight availability from Austin 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 13 January 2026.

It’s typically best to fly out from Austin to Sydney in the evening. Doing so could potentially save you 46% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Austin to Sydney?

Use this chart to determine the cheapest time to fly return from Austin to Sydney. Price data was last updated on 30 March 2025.

Travellers seeking maximum savings on their Austin to Sydney flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 Qantas Airways fly from Austin to Sydney in about 21h 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, May is the cheapest month in which you can book a flight from Austin to Sydney (average of $590). Flying from Austin to Sydney in December is currently the most expensive (average of $1,445). 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
Terrigal
Katoomba
Manly
Lithgow
Coogee
Leura
Randwick
Cronulla
Bondi Beach

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.