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Cheap flights from Austin to Sydney from $721

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
11 Apr — 18 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Austin Bergstrom to Sydney Kingsford Smith are usually found in August or February, booked 72 days in advance, depart on a Friday or Saturday and return on a Saturday

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 12 March 2026.

Wed 9/910:25
AUS
-
SYD
2 stops29h 55m
Air Canada
Wed 30/909:20
SYD
-
AUS
1 stop25h 41m
Air Canada
Deal found 8/3$1,562
Tue 8/909:00
AUS
-
SYD
1 stop31h 20m
Air Canada
Tue 15/909:20
SYD
-
AUS
2 stops40h 28m
Air Canada
Deal found 9/3$1,569
Sun 12/412:55
AUS
-
SYD
2 stops27h 25m
Air Canada
Tue 21/409:20
SYD
-
AUS
2 stops50h 50m
Air Canada
Deal found 9/3$1,573
Wed 20/514:10
AUS
-
SYD
2 stops26h 10m
Multiple Airlines
Mon 15/609:20
SYD
-
AUS
1 stop25h 57m
Multiple Airlines
Deal found 9/3$1,578
Mon 11/511:55
AUS
-
SYD
2 stops28h 25m
Air Canada
Tue 19/509:20
SYD
-
AUS
2 stops40h 33m
Air Canada
Deal found 10/3$1,580
Wed 22/412:55
AUS
-
SYD
2 stops27h 25m
Air Canada
Tue 26/509:20
SYD
-
AUS
2 stops40h 33m
Air Canada
Deal found 8/3$1,582
Tue 7/412:55
AUS
-
SYD
2 stops51h 25m
Air Canada
Tue 14/409:20
SYD
-
AUS
3 stops50h 50m
Air Canada
Deal found 8/3$1,585
Tue 8/909:00
AUS
-
SYD
1 stop31h 20m
Multiple Airlines
Tue 15/909:20
SYD
-
AUS
1 stop40h 28m
Multiple Airlines
Deal found 9/3$1,586
Sun 16/810:25
AUS
-
SYD
2 stops29h 55m
Multiple Airlines
Tue 15/909:20
SYD
-
AUS
2 stops40h 28m
Multiple Airlines
Deal found 10/3$1,590

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 12 March 2026.

Round-trip from

$1,569

One-way from

$721

Popular in

December

Cheapest in

August

Average price

$1,551
Air Canada
  • Air Canada
  • 8/9-15/9
  • 3 total stops
  • 71h 48m total
  • Austin to Sydney
Search Deals
1/5
  • 1/5
  • 3 total stops
  • 57h 49m total
  • Austin to Sydney
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($105 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($48 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 12 March 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

Sun 24/5

12:55-06:55

2 stops27h 00m

Sydney Kingsford Smith

Tue 16/6

09:30-19:57

2 stops25h 27m

$1,890

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 24/5

10:20-07:00

1 stop29h 40m

Sydney Kingsford Smith

Thu 18/6

10:20-23:04

1 stop27h 44m

$1,953

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 24/6

16:30-06:50

1 stop23h 20m

Sydney Kingsford Smith

Mon 13/7

09:15-21:02

1 stop26h 47m

$2,120

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 1/4

14:10-08:00

1 stop25h 50m

Sydney Kingsford Smith

Wed 15/4

10:20-18:14

1 stop22h 54m

$2,542
Fastest return journey

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 25/4

17:40-08:15

2 stops23h 35m

Sydney Kingsford Smith

Wed 29/4

09:10-14:35

1 stop20h 25m

$2,715

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 25/4

11:13-06:55

1 stop28h 42m

Sydney Kingsford Smith

Wed 29/4

10:20-23:59

1 stop28h 39m

$2,995
Cheapest one-way

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 1/5

11:01-11:50

3 stops57h 49m

$721

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 8/4

19:48-11:50

3 stops49h 02m

$721

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 8/4

12:55-07:20

2 stops27h 25m

$872

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 10/4

12:55-07:20

1 stop27h 25m

$1,060

Flights are sorted by cheapest return flights first.

Deals found on 8/3

Showing 1-10 of 13 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?

Use this chart to determine the optimal time to book a return flight from Austin to Sydney. Price data was last updated on 6 March 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 $350). Flying from Austin to Sydney in December is currently the most expensive (average of $1,365). 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 12 March 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.

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

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 and Qantas Airways fly from Austin to Sydney in about 23h 35m. The time it takes to get you to your destination can typically vary by up to 3h 25m. 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, May is the cheapest month in which you can book a flight from Austin to Sydney (average of $350). Flying from Austin to Sydney in December is currently the most expensive (average of $1,365). 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
Terrigal
Lithgow
Bondi Beach
Coogee
Cronulla
Leura
Randwick

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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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