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Cheap flights from Austin to Sydney from $620

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
6 Jul — 13 Jul1
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 1 July 2025.

Round-trip from

$1,490

One-way from

$620

Popular in

December

Cheapest in

April

Average price

$2,077
Qantas Airways
  • Qantas Airways
  • 21/11-12/12
  • 3 total stops
  • 44h 28m total
  • Austin to Sydney
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4/9
  • 4/9
  • 2 total stops
  • 32h 41m total
  • Austin to Sydney
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($611 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($105 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 1 July 2025.

Fri 21/1114:21AUS - SYD
2 stops25h 59mQantas Airways
Fri 12/1214:20SYD - AUS
1 stop18h 29mQantas Airways
Deal found 30/6$1,490
Mon 27/1012:59AUS - SYD
2 stops39h 16mANA
Tue 4/1121:45SYD - AUS
2 stops31h 08mANA
Deal found 30/6$1,505
Mon 4/807:30AUS - SYD
2 stops33h 00mMultiple Airlines
Sat 23/817:45SYD - AUS
2 stops32h 51mMultiple Airlines
Deal found 29/6$1,593
Fri 21/1114:16AUS - SYD
2 stops27h 14mAir New Zealand
Fri 12/1211:45SYD - AUS
2 stops22h 36mAir New Zealand
Deal found 30/6$1,619
Sat 2/808:31AUS - SYD
1 stop31h 34mAmerican Airlines
Fri 15/809:10SYD - AUS
2 stops23h 21mAmerican Airlines
Deal found 29/6$1,644
Sat 2/812:50AUS - SYD
2 stops27h 10mUnited Airlines
Fri 15/810:20SYD - AUS
2 stops21h 40mUnited Airlines
Deal found 29/6$1,670
Thu 14/813:36AUS - SYD
2 stops26h 54mAlaska Airlines
Thu 21/817:45SYD - AUS
2 stops33h 55mAlaska Airlines
Deal found 30/6$1,752
Fri 19/919:59AUS - SYD
2 stops44h 21mAir Canada
Sun 28/909:20SYD - AUS
2 stops41h 09mAir Canada
Deal found 30/6$1,789
Thu 14/816:00AUS - SYD
1 stop23h 35mDelta
Thu 21/809:25SYD - AUS
1 stop26h 57mDelta
Deal found 30/6$1,876

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 1 July 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

Fri 21/11

14:21-09:20

2 stops25h 59m

Sydney Kingsford Smith

Fri 12/12

14:20-15:49

1 stop18h 29m

$1,490

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 27/10

12:59-20:15

2 stops39h 16m

Sydney Kingsford Smith

Tue 4/11

21:45-11:53

2 stops31h 08m

$1,505

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 4/8

07:30-07:30

2 stops33h 00m

Sydney Kingsford Smith

Sat 23/8

17:45-11:36

2 stops32h 51m

$1,593

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 21/11

14:16-10:30

2 stops27h 14m

Sydney Kingsford Smith

Fri 12/12

11:45-17:21

2 stops22h 36m

$1,619

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 2/8

08:31-07:05

1 stop31h 34m

Sydney Kingsford Smith

Fri 15/8

09:10-17:31

2 stops23h 21m

$1,644

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 2/8

12:50-07:00

2 stops27h 10m

Sydney Kingsford Smith

Fri 15/8

10:20-17:00

2 stops21h 40m

$1,670

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Thu 14/8

13:36-07:30

2 stops26h 54m

Sydney Kingsford Smith

Thu 21/8

17:45-12:40

2 stops33h 55m

$1,752

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 18/10

08:30-08:20

1 stop31h 50m

Sydney Kingsford Smith

Sat 25/10

10:20-12:14

2 stops41h 54m

$1,810

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 29/11

10:52-08:30

2 stops28h 38m

Sydney Kingsford Smith

Tue 23/12

14:15-21:32

2 stops24h 17m

$1,932

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Thu 4/9

14:59-14:40

2 stops32h 41m

$620

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 17 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 27 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 1 July 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.

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

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 1 July 2025.
Check out reviews from past customers who have flown with ANA, Alaska Airlines, andFiji Airways from Austin to Sydney to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
ANA
8.4
Very Good
892 reviews
Check prices

Food

7.7

Crew

8.7

Entertainment

7.9

Overall

8.4

Boarding

8.5

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
ANA
8.4
Very Good
892 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Food

7.7

Crew

8.7

Entertainment

7.9

Overall

8.4

Boarding

8.5

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Alaska Airlines
8.0
Very Good
10,000 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Food

7.7

Crew

8.7

Entertainment

7.9

Overall

8.4

Boarding

8.5

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Fiji Airways
8.0
Very Good
202 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Food

7.7

Crew

8.7

Entertainment

7.9

Overall

8.4

Boarding

8.5

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Delta
8.0
Very Good
7,973 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Food

7.7

Crew

8.7

Entertainment

7.9

Overall

8.4

Boarding

8.5

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.
Air New Zealand
8.0
Very Good
486 reviews
ANA
8.4
Very Good
892 reviews
Check prices

Food

7.7

Crew

8.7

Entertainment

7.9

Overall

8.4

Boarding

8.5

Comfort

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

SEA - HND

The flight with ANA was fantastic. Huge plane but was boarded swiftly and efficiently with a lot of crew members engaged to expedite the process. The onboard crew was polite and considerate and constantly doing things to serve passengers. The plane was new and in great working order-- definitely more spacious than the Alaska plane we took from SLC. Food was solid, not great. Lots of movie options.

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 $1,490, Qantas Airways will fly you from Austin to Sydney and back. In addition to Qantas Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from ANA and Air New Zealand - these airlines can fly you to your destination from $1,505 and $1,619, respectively. Qantas Airways is 26% 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 ANA. According to our data, you can fly for as low as $762. Users have also found prices from $813 and $838 on Fiji Airways 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

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