$663+ Cheap flights from Austin (AUS) to Sydney (SYD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — SYD
Dec 8 — Dec 151
Round-trip
1 adult, Economy
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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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Austin to Sydney
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to SydneyExplore 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 November 8, 2026.
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 November 8, 2026.
This lastminute.com deal was found by Cheapflights users on 11/3. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:23 pm -
1 stop24h 37m
Tue 12/811:10 am -
1 stop20h 39m
Deal found 11/3![Qantas Airways logo]()
$1,201
This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:50 pm -
2 stops32h 10m
Sat 12/52:05 pm -
1 stop20h 03m
Deal found 11/4![Qantas Airways logo]()
$1,246
This FlightHub deal was found by Cheapflights users on 11/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:23 pm -
2 stops26h 42m
Sat 11/142:05 pm -
1 stop18h 25m
Deal found 11/6![Qantas Airways logo]()
$1,255
This lastminute.com deal was found by Cheapflights users on 11/5. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:23 pm -
1 stop24h 37m
Mon 11/2311:10 am -
1 stop20h 42m
Deal found 11/5![Qantas Airways logo]()
$1,273
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 11/86:46 pm -
2 stops21h 14m
Mon 11/2311:15 am -
1 stop20h 37m
Deal found 11/5![American Airlines logo]()
$1,281
This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:45 am -
2 stops31h 50m
Fri 12/259:55 am -
2 stops28h 57m
Deal found 11/4![Air New Zealand logo]()
$1,284
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:52 am -
2 stops28h 38m
Mon 11/2310:40 am -
2 stops23h 56m
Deal found 11/5![Delta logo]()
$1,285
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 11/191:00 pm -
2 stops27h 05m
Mon 11/309:15 am -
1 stop27h 48m
Deal found 11/3![United Airlines logo]()
$1,293
This Justfly.com deal was found by Cheapflights users on 11/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:00 am -
2 stops30h 35m
Tue 11/177:25 pm -
2 stops58h 49m
Deal found 11/8![Air New Zealand logo]()
$1,308
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:05 pm -
1 stop23h 25m
Fri 12/2510:40 am -
1 stop18h 53m
Deal found 11/3![Delta logo]()
$1,338
Best flights from Austin to SydneyDiscover carefully curated flight deals from Austin to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 8, 2026.
Discover carefully curated flight deals from Austin to Sydney that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 8, 2026.
This Qantas Airways deal was found by Cheapflights users on 11/3. 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.
Mon 2/16:55 pm -
2 stops23h 10m
Sat 2/272:05 pm -
1 stop21h 33m
Deal found 11/3![Multiple Airlines logo]()
$1,171
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:05 pm -
1 stop23h 25m
Fri 12/2510:40 am -
1 stop18h 53m
Deal found 11/3![Delta logo]()
$1,338
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Mon 2/83:21 pm -
2 stops38h 04m
Thu 2/119:20 am -
1 stop20h 53m
Deal found 11/5![United Airlines logo]()
$1,401
This KLM deal was found by Cheapflights users on 11/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/116:01 pm -
3 stops44h 24m
Sat 2/2710:15 pm -
2 stops58h 50m
Deal found 11/8![KLM logo]()
$2,723
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/147:20 am -
1 stop30h 30m
Sat 2/2710:40 am -
1 stop24h 48m
Deal found 11/5![Delta logo]()
$1,547
This Cathay Pacific deal was found by Cheapflights users on 11/5. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/152:38 pm -
2 stops37h 12m
Fri 1/298:45 am -
2 stops28h 45m
Deal found 11/5![Multiple Airlines logo]()
$1,843
This United Airlines deal was found by Cheapflights users on 11/7. 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 1/167:10 pm -
1 stop42h 10m
Mon 1/251:20 pm -
1 stop21h 36m
Deal found 11/7![United Airlines logo]()
$1,937
This Air New Zealand deal was found by Cheapflights users on 11/4. 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 New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/55:40 pm -
2 stops21h 55m
Tue 4/611:55 am -
3 stops26h 43m
Deal found 11/4![Multiple Airlines logo]()
$2,034
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/157:45 pm -
1 stop19h 45m
Fri 1/2910:40 am -
1 stop25h 07m
Deal found 11/5![Delta logo]()
$2,169
This KLM deal was found by Cheapflights users on 11/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/136:01 pm -
3 stops44h 24m
Fri 2/196:35 am -
3 stops50h 30m
Deal found 11/7![KLM logo]()
$2,727
Last-minute flights from Austin to SydneyDiscover last-minute flight deals from Austin to Sydney. Data last updated November 8, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Sydney. Data last updated November 8, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 11/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:23 pm -
2 stops26h 42m
Sat 11/142:05 pm -
1 stop18h 25m
Deal found 11/6![Qantas Airways logo]()
$1,255
This lastminute.com deal was found by Cheapflights users on 11/5. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:23 pm -
1 stop24h 37m
Mon 11/2311:10 am -
1 stop20h 42m
Deal found 11/5![Qantas Airways logo]()
$1,273
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 11/86:46 pm -
2 stops21h 14m
Mon 11/2311:15 am -
1 stop20h 37m
Deal found 11/5![American Airlines logo]()
$1,281
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/810:52 am -
2 stops28h 38m
Mon 11/2310:40 am -
2 stops23h 56m
Deal found 11/5![Delta logo]()
$1,285
This Justfly.com deal was found by Cheapflights users on 11/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:00 am -
2 stops30h 35m
Tue 11/177:25 pm -
2 stops58h 49m
Deal found 11/8![Air New Zealand logo]()
$1,308
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 11/191:00 pm -
2 stops27h 05m
Mon 11/309:15 am -
1 stop27h 48m
Deal found 11/3![United Airlines logo]()
$1,293
This lastminute.com deal was found by Cheapflights users on 11/3. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/233:23 pm -
1 stop24h 37m
Tue 12/811:10 am -
1 stop20h 39m
Deal found 11/3![Qantas Airways logo]()
$1,201
This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:50 pm -
2 stops32h 10m
Sat 12/52:05 pm -
1 stop20h 03m
Deal found 11/4![Qantas Airways logo]()
$1,246
This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:45 am -
2 stops31h 50m
Fri 12/259:55 am -
2 stops28h 57m
Deal found 11/4![Air New Zealand logo]()
$1,284
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:05 pm -
1 stop23h 25m
Fri 12/2510:40 am -
1 stop18h 53m
Deal found 11/3![Delta logo]()
$1,338
One-way flights from Austin to SydneySearch for one-way flight options from Austin to Sydney. Find affordable one-way fares based on user searches. Data last updated November 8, 2026.
Search for one-way flight options from Austin to Sydney. Find affordable one-way fares based on user searches. Data last updated November 8, 2026.
This FlightHub deal was found by Cheapflights users on 11/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:51 pm -
1 stop24h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Qantas Airways logo]()
$663
This American Airlines deal was found by Cheapflights users on 11/7. 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.
Tue 11/174:22 pm -
2 stops23h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![American Airlines logo]()
$674
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/307:15 am -
2 stops31h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Alaska Airlines logo]()
$693
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/167:01 pm -
3 stops58h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$735
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/188:31 pm -
3 stops47h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$741
This oojo deal was found by Cheapflights users on 11/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/302:44 pm -
1 stop25h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Qantas Airways logo]()
$751
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/83:22 pm -
1 stop24h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Qantas Airways logo]()
$784
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/199:54 am -
3 stops33h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$789
This Delta deal was found by Cheapflights users on 11/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/191:56 pm -
1 stop23h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Delta logo]()
$793
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 November 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,170 (Qantas Airways) |
One-way from | $663 (FlightHub) |
Popular in | December |
Cheapest in | February |
Average price | $1,289 |
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 7,457,451 searches. Data last updated November 8, 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
Cheapest round-trip
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Tue 3/30
7:15 am-6:30 am
2 stops31h 15m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$693
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Thu 1/14
10:51 pm-8:35 am
3 stops40h 44m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$820
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Sun 1/17
7:10 pm-6:20 am
1 stop42h 10m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$896
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Tue 3/30
4:40 pm-8:00 pm
3 stops59h 20m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$1,008
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Sun 1/17
12:10 pm-6:50 am
2 stops25h 40m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$1,028
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Sun 12/20
7:15 am-6:25 am
2 stops30h 10m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$1,102
Quickest round-trip
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Sun 1/10
1:56 pm-6:50 am
1 stop23h 54m
Sydney Kingsford Smith
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$1,144
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Mon 2/1
6:55 pm-11:05 am
2 stops23h 10m
Sydney Kingsford Smith
Sat 2/27
2:05 pm-6:38 pm
1 stop21h 33m
$1,171
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Tue 12/1
4:05 pm-8:30 am
1 stop23h 25m
Sydney Kingsford Smith
Fri 12/25
10:40 am-12:33 pm
1 stop18h 53m
$1,338
AustinSydney
AUS Austin Bergstrom - SYD Sydney Kingsford Smith
AUSSYD
Austin Bergstrom
Mon 2/8
3:21 pm-10:25 pm
2 stops38h 04m
Sydney Kingsford Smith
Thu 2/11
9:20 am-1:13 pm
1 stop20h 53m
$1,401
Showing 1-10 of 17 resultsSorted by cheapest first
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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Austin-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Austin-Sydney flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.
AUS-SYD
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?
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 41 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, February is the cheapest month in which you can book a flight from Austin to Sydney (average of $962). Flying from Austin to Sydney in December is currently the most expensive (average of $1,780). 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.
How much does it cost to fly round-trip from Austin to Sydney?
Airfare is typical for this route at the moment.
Austin to Sydney flights typically cost between $1,163 and $1,406 in February.The cheapest round-trip price found within the last 5 days was $1,170 on Multiple Airlines (Feb 1-Feb 27).
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 November 8, 2026.
See what other customers who have flown with Air New Zealand,Delta, andQantas 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.
Food
7.5
Entertainment
7.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Food
7.5
Entertainment
7.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Food
7.5
Entertainment
7.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Food
7.5
Entertainment
7.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Food
7.5
Entertainment
7.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Food
7.5
Entertainment
7.5
Overall
8.0
Boarding
8.2
Comfort
7.9
Crew
8.5
Reviews
1 / 20
6.0
GoodAnonymous,Aug 2026
FLL - IAH
Related info for your journey
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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 7,457,451 searches. Data last updated November 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$242 | Average$997 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$945 | Average$1,351 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$950 | Average$1,412 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$964 | Average$1,481 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,163 | Average$1,780 | FlexibilityNo cancel fee | On-time78% |