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Cheap flights from Austin to Sydney from $798

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Austin Bergstrom to Sydney Kingsford Smith are usually found in April or May, booked 71 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 June 2025.

Round-trip from

$1,666

One-way from

$798

Popular in

December

Cheapest in

April

Average price

$2,165
Fiji Airways
  • Fiji Airways
  • 12/8-26/8
  • 4 total stops
  • 47h 52m total
  • Austin to Sydney
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Fiji Airways
  • Fiji Airways
  • 21/10
  • 2 total stops
  • 24h 13m total
  • Austin to Sydney
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($604 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($105 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Find flight deals from Austin to Sydney

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 June 2025.

Sat 1/1120:32AUS - SYD
2 stops23h 58mFiji Airways
Sat 15/1114:30SYD - AUS
2 stops20h 38mFiji Airways
Deal found 11/6$1,567
Sun 24/819:22AUS - SYD
1 stop20h 33mQantas Airways
Wed 3/909:10SYD - AUS
1 stop25h 09mQantas Airways
Deal found 12/6$1,690
Sun 17/813:49AUS - SYD
2 stops38h 31mMultiple Airlines
Fri 22/809:00SYD - AUS
2 stops30h 23mMultiple Airlines
Deal found 10/6$1,739
Fri 1/814:00AUS - SYD
1 stop26h 05mAmerican Airlines
Fri 15/809:10SYD - AUS
1 stop24h 07mAmerican Airlines
Deal found 12/6$1,787
Sat 18/1008:30AUS - SYD
1 stop31h 50mAir Canada
Sat 25/1010:20SYD - AUS
2 stops40h 53mAir Canada
Deal found 10/6$1,818
Wed 17/919:45AUS - SYD
2 stops22h 00mAir New Zealand
Wed 24/911:50SYD - AUS
2 stops22h 46mAir New Zealand
Deal found 11/6$1,868
Thu 30/1013:59AUS - SYD
1 stop25h 36mDelta
Thu 13/1111:05SYD - AUS
1 stop26h 53mDelta
Deal found 10/6$1,934
Sat 15/1116:18AUS - SYD
2 stops23h 47mUnited Airlines
Sat 29/1111:50SYD - AUS
1 stop20h 32mUnited Airlines
Deal found 11/6$1,936
Sun 2/1118:47AUS - SYD
3 stops29h 53mAir Tahiti Nui
Thu 13/1108:55SYD - AUS
3 stops27h 27mAir Tahiti Nui
Deal found 10/6$3,047

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 June 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

Sat 8/11

18:53-21:50

2 stops33h 57m

Sydney Kingsford Smith

Sat 15/11

06:00-18:08

2 stops29h 08m

$1,567

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 24/8

19:22-06:55

1 stop20h 33m

Sydney Kingsford Smith

Wed 3/9

09:10-19:19

1 stop25h 09m

$1,690

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 21/9

13:53-19:20

2 stops38h 27m

Sydney Kingsford Smith

Sun 19/10

09:00-21:49

2 stops28h 49m

$1,738

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 24/8

16:40-07:05

2 stops23h 25m

Sydney Kingsford Smith

Wed 3/9

09:10-17:16

2 stops23h 06m

$1,793

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 1/9

08:30-07:20

1 stop31h 50m

Sydney Kingsford Smith

Sun 14/9

09:20-19:55

2 stops49h 35m

$1,808

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 21/9

16:30-06:35

1 stop23h 05m

Sydney Kingsford Smith

Sun 19/10

10:25-20:58

1 stop26h 33m

$1,811

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 17/9

19:45-08:45

2 stops22h 00m

Sydney Kingsford Smith

Wed 24/9

09:55-19:36

2 stops24h 41m

$1,868

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 22/6

16:00-07:00

1 stop24h 00m

Sydney Kingsford Smith

Tue 8/7

09:30-17:00

2 stops22h 30m

$1,928

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 2/8

07:37-07:30

2 stops32h 53m

Sydney Kingsford Smith

Wed 6/8

17:45-06:07

2 stops27h 22m

$2,051

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 2/11

18:47-17:40

3 stops29h 53m

Sydney Kingsford Smith

Thu 13/11

08:55-19:22

3 stops27h 27m

$3,047

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 16 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 June 2025.

To ensure you get the cheapest price possible for a flight from Austin to Sydney, you should look to book at least 71 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 $129). Flying from Austin to Sydney in October is currently the most expensive (average of $171). 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 June 2025.

It’s typically best to fly out from Austin to Sydney in the evening. Doing so could potentially save you 47% 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.

Rainfall in Sydney by month

Plan your trip to Sydney by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sydney ranges from 50.0 - 130.0 inches per month. March is typically the wettest month, when rainfall can reach 130.0 mm. September is typically the driest time to visit Sydney when rainfall is around 50.0 mm.

Temperature in Sydney by month

Plan your trip to Sydney by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sydney, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 11.0 C).

Reviews of airlines servicing Sydney

Get insights into the airlines that provide service to Sydney. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sydney. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown with Air Tahiti Nui, Fiji Airways and Singapore Airlines from Austin to Sydney to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Overall

8.7

Comfort

8.1

Entertainment

7.3

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air Tahiti Nui
8.7
Very Good
64 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Overall

8.7

Comfort

8.1

Entertainment

7.3

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Fiji Airways
8.1
Very Good
194 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Overall

8.7

Comfort

8.1

Entertainment

7.3

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Singapore Airlines
8.1
Very Good
1,302 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Overall

8.7

Comfort

8.1

Entertainment

7.3

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Delta
8.0
Very Good
7,950 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Overall

8.7

Comfort

8.1

Entertainment

7.3

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.
Air New Zealand
8.0
Very Good
483 reviews
Air Tahiti Nui
8.7
Very Good
64 reviews
Check prices

Food

7.8

Overall

8.7

Comfort

8.1

Entertainment

7.3

Boarding

8.7

Crew

9.0

Reviews

1 / 2
10.0
Excellent

Isabelle,Apr 2023

AKL - PPT

Les sièges sont étroits, je mesure 1,77 m, les passants dans le couloirs notamment l'équipage n'arrêtaient pas de me cogner. nous étions en économie. l'équipage est au top. C'est le confort qui était négatif pour nous.

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.

  • What are the cheapest airlines flying from Austin to Sydney round-trip?

    Currently priced at $1,666, Fiji Airways will fly you from Austin to Sydney and back. In addition to Fiji Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Qantas Airways and American Airlines - these airlines can fly you to your destination from $1,690 and $1,787, respectively. Fiji Airways is 18% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Austin to Sydney one-way?

    For one-way options, check prices for Fiji Airways. According to our data, you can fly for as low as $798. Users have also found prices from $972 and $975 on Air Canada and Qantas Airways, respectively.

  • 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 $129). Flying from Austin to Sydney in October is currently the most expensive (average of $171). 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 Austin?

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Katoomba
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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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