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$523+ Cheap flights from Austin (AUS) to Sydney (SYD)

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Find cheap flights from Austin to Sydney with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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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 Saturday or Friday and return on a Tuesday

Cheap 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 December 23, 2025.

This Air Canada deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:05 pmAUS - SYD
2 stops48h 50mAir Canada
Fri 1/1611:20 amSYD - AUS
2 stops41h 59mAir Canada
Deal found 12/21$946
This American Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:03 pmAUS - SYD
1 stop19h 57mAmerican Airlines
Fri 1/165:45 pmSYD - AUS
1 stop22h 11mAmerican Airlines
Deal found 12/21$948
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:25 pmAUS - SYD
1 stop42h 35mUnited Airlines
Thu 1/12:00 pmSYD - AUS
1 stop20h 26mUnited Airlines
Deal found 12/21$992
This United Airlines deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/277:40 pmAUS - SYD
1 stop20h 35mUnited Airlines
Fri 1/212:10 pmSYD - AUS
1 stop28h 49mUnited Airlines
Deal found 12/21$1,009
This American Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:03 pmAUS - SYD
1 stop19h 57mAmerican Airlines
Tue 1/611:20 amSYD - AUS
1 stop23h 15mAmerican Airlines
Deal found 12/20$1,098
This United Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:59 amAUS - SYD
2 stops26h 01mUnited Airlines
Tue 1/62:00 pmSYD - AUS
2 stops24h 35mUnited Airlines
Deal found 12/20$1,295
This Qantas Airways deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:24 pmAUS - SYD
2 stops25h 11mMultiple Airlines
Sun 12/289:25 pmSYD - AUS
1 stop20h 25mMultiple Airlines
Deal found 12/22$1,405

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$859
(Air Canada)

One-way from

$523
(FlightHub)

Popular in

December

Cheapest in

May

Average price

$1,537
Provider with most accurate pricing for Austin Bergstrom-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Sydney Kingsford Smith flights.
Search Deals
From Austin Bergstrom to Sydney Kingsford Smith
Search Deals
One-way flight from Austin Bergstrom to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 23, 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 2/17

4:52 pm-9:35 am

2 stops23h 43m

Sydney Kingsford Smith

Wed 2/25

11:20 am-12:19 pm

2 stops41h 59m

$859

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 2/28

4:52 pm-9:35 am

2 stops47h 43m

Sydney Kingsford Smith

Wed 3/4

11:20 am-11:20 am

2 stops41h 00m

$946

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 2/20

6:45 pm-9:00 am

2 stops21h 15m

Sydney Kingsford Smith

Sun 3/1

5:45 pm-11:17 pm

1 stop22h 32m

$953

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 2/17

7:20 am-6:50 am

1 stop30h 30m

Sydney Kingsford Smith

Wed 2/25

10:40 am-5:35 pm

1 stop23h 55m

$965

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 1/19

7:00 am-6:20 am

1 stop30h 20m

Sydney Kingsford Smith

Mon 1/26

11:50 am-7:55 pm

1 stop25h 05m

$965

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 3/3

7:20 am-6:50 am

1 stop30h 30m

Sydney Kingsford Smith

Tue 3/24

1:15 pm-6:12 pm

1 stop20h 57m

$965

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 2/4

3:10 pm-9:15 am

1 stop25h 05m

Sydney Kingsford Smith

Wed 2/11

2:00 pm-4:53 pm

1 stop19h 53m

$965

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 1/18

7:20 am-6:50 am

1 stop30h 30m

Sydney Kingsford Smith

Sun 2/8

10:40 am-5:35 pm

1 stop23h 55m

$965

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 3/3

1:05 pm-9:35 am

2 stops51h 30m

$523

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 12/29

2:29 pm-7:25 am

2 stops23h 56m

$533

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 16 results
1
2

Compare providers for flights from Austin to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Sydney in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-Sydney flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Austin-Sydney flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Austin-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Sydney flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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 round-trip flight from Austin to Sydney. Price data was last updated on December 19, 2025.

The price you pay for your flight from Austin to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $500). Flying from Austin to Sydney in December is currently the most expensive (average of $971). 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 December 23, 2025.

It’s typically best to fly out from Austin to Sydney in the afternoon. Doing so could potentially save you 83% on the flight price compared to flying at noon, 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 round-trip from Austin to Sydney. Price data was last updated on March 30, 2025.

Travelers seeking maximum savings on their Austin to Sydney flight should consider departing on Friday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 23, 2025.
See what other customers who have flown with Fiji Airways, Delta, and Qantas Airways from Austin to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Fiji Airways
8.0
Very good
211 reviews

Boarding

8.1

Food

7.5

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Fiji Airways
8.0
Very good
211 reviews
Fiji Airways
8.0
Very good
211 reviews

Boarding

8.1

Food

7.5

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Delta
7.9
Good
8,014 reviews
Fiji Airways
8.0
Very good
211 reviews

Boarding

8.1

Food

7.5

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
Qantas Airways
7.5
Good
949 reviews
Fiji Airways
8.0
Very good
211 reviews

Boarding

8.1

Food

7.5

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
United Airlines
7.4
Good
9,105 reviews
Fiji Airways
8.0
Very good
211 reviews

Boarding

8.1

Food

7.5

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.
American Airlines
7.2
Good
11,054 reviews
Fiji Airways
8.0
Very good
211 reviews

Boarding

8.1

Food

7.5

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.5

Reviews

1 / 17
10.0
Excellent

Anonymous,Oct 2025

CNS - NAN

Food service: Outstanding. Comfort of seating and usual things: Also outstanding.

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?

    There are many flights that can get you from Austin to Sydney in 21h 15m. Fly via Air Canada, American Airlines, or Delta to get the fastest option. Airlines will cover a distance of 8469 mi. This flight may include one or multiple stops.

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

    According to our current data, Delta ($469), Fiji Airways ($717), and American Airlines ($876) offers the cheapest pricing from Austin to Sydney. Users have found that Delta is 60% cheaper than the other options available to this destination.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $428. Users have also found prices from $542 and $543 on American Airlines and Delta, 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 vacation 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 $500). Flying from Austin to Sydney in December is currently the most expensive (average of $971). 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

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Manly
Coogee

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Top 5 airlines flying from Austin to Sydney

Discover the top 5 airlines that operate flights from Austin to Sydney. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$469Average$1,208FlexibilityNo cancel feeOn-timeN/A
Fiji AirwaysCheapest$717Average$1,140FlexibilityNo cancel feeOn-time74%
American AirlinesCheapest$876Average$1,402FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$907Average$1,184FlexibilityNo cancel feeOn-time69%
Qantas AirwaysCheapest$992Average$1,312FlexibilityNo cancel feeOn-time74%

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