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Cheap flights from Austin to Sydney from $764

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
30 Dec — 6 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Austin Bergstrom to Sydney Kingsford Smith are usually found in May or April, booked 72 days in advance, depart on a Friday or Saturday and return on a Saturday

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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 30 November 2025.

Tue 2/1214:22AUS - SYD
1 stop25h 38mQantas Airways
Thu 4/1217:45SYD - AUS
1 stop18h 38mQantas Airways
Deal found 28/11$1,396
Sat 29/1114:28AUS - SYD
1 stop25h 32mQantas Airways
Sat 6/1211:20SYD - AUS
1 stop25h 03mQantas Airways
Deal found 28/11$1,416
Sat 29/1118:22AUS - SYD
2 stops21h 38mAmerican Airlines
Fri 12/1211:20SYD - AUS
1 stop28h 39mAmerican Airlines
Deal found 28/11$1,432
Sun 30/1120:08AUS - SYD
1 stop19h 52mAmerican Airlines
Sun 7/1211:20SYD - AUS
1 stop25h 03mAmerican Airlines
Deal found 29/11$1,443
Sat 29/1114:28AUS - SYD
1 stop25h 32mQantas Airways
Fri 12/1217:45SYD - AUS
1 stop18h 38mQantas Airways
Deal found 28/11$1,446
Sat 29/1120:33AUS - SYD
1 stop19h 27mAmerican Airlines
Sat 6/1211:20SYD - AUS
2 stops21h 23mAmerican Airlines
Deal found 28/11$1,449
Wed 10/1213:55AUS - SYD
1 stop24h 05mUnited Airlines
Mon 22/1214:00SYD - AUS
1 stop26h 59mUnited Airlines
Deal found 29/11$1,469
Wed 10/1210:15AUS - SYD
2 stops27h 05mUnited Airlines
Wed 17/1211:50SYD - AUS
1 stop18h 09mUnited Airlines
Deal found 29/11$1,477
Sat 29/1119:43AUS - SYD
1 stop42h 17mUnited Airlines
Fri 12/1211:20SYD - AUS
1 stop19h 32mUnited Airlines
Deal found 28/11$1,492
Thu 11/1215:02AUS - SYD
1 stop25h 13mUnited Airlines
Sun 21/1212:10SYD - AUS
1 stop22h 16mUnited Airlines
Deal found 29/11$1,503
Wed 10/1215:02AUS - SYD
2 stops46h 53mAir Canada
Sun 21/1211:20SYD - AUS
2 stops40h 43mAir Canada
Deal found 29/11$1,518

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 30 November 2025.

Round-trip from

$1,297

One-way from

$764

Popular in

December

Cheapest in

May

Average price

$1,922
Air Canada
  • Air Canada
  • 17/2-25/2
  • 4 total stops
  • 78h 42m total
  • Austin to Sydney
Search Deals
18/3
  • 18/3
  • 3 total stops
  • 56h 27m total
  • Austin to Sydney
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($355 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($86 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 30 November 2025.
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

Tue 19/5

08:30-07:20

1 stop31h 50m

Sydney Kingsford Smith

Tue 26/5

09:20-10:29

1 stop40h 09m

$1,309

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 25/1

18:25-07:25

1 stop20h 00m

Sydney Kingsford Smith

Fri 30/1

11:20-17:35

1 stop23h 15m

$1,445

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 1/3

18:40-08:30

1 stop20h 50m

Sydney Kingsford Smith

Sun 15/3

09:40-12:14

1 stop18h 34m

$1,469

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 11/3

17:57-07:00

1 stop21h 03m

Sydney Kingsford Smith

Sun 15/3

14:00-16:52

1 stop18h 52m

$1,469

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 1/3

13:59-06:50

1 stop23h 51m

Sydney Kingsford Smith

Sun 8/3

10:40-14:38

1 stop20h 58m

$1,469

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 8/3

17:57-07:00

1 stop21h 03m

Sydney Kingsford Smith

Mon 16/3

10:20-15:43

1 stop21h 23m

$1,469

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 11/3

19:17-07:25

1 stop20h 08m

Sydney Kingsford Smith

Wed 18/3

09:40-18:12

1 stop24h 32m

$1,469

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 8/3

17:58-06:20

1 stop20h 22m

Sydney Kingsford Smith

Tue 17/3

11:50-17:23

1 stop21h 33m

$1,469

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 9/3

13:24-07:25

2 stops26h 01m

Sydney Kingsford Smith

Wed 18/3

09:40-17:21

2 stops23h 41m

$1,475

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 8/4

08:00-06:35

2 stops31h 35m

Sydney Kingsford Smith

Sun 19/4

09:25-18:35

2 stops24h 10m

$1,475

Flights are sorted by cheapest return flights first.

Deals found on 29/11

Showing 1-10 of 22 results
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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
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 21 November 2025.

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 $686). Flying from Austin to Sydney in December is currently the most expensive (average of $1,522). 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 30 November 2025.

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 Air Canada fly from Austin to Sydney in about 30h 20m. 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 $686). Flying from Austin to Sydney in December is currently the most expensive (average of $1,522). 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
Katoomba
Penrith
Terrigal
Manly
Randwick
Lithgow
Coogee
Leura
Bondi Beach
Cronulla

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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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