Which layover airport has the shortest travel time from Austin to Sydney?

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 20h 05m.

Which layover airport offers the lowest fares from Austin to Sydney?

Flights via Los Angeles (LAX) offer the lowest average round-trip price of $4,812.

What is the cheapest airline that flies from Austin Bergstrom to Sydney Kingsford Smith?

Qantas Airways, Delta, and United Airlines are the most popular carriers operating from Austin Bergstrom to Sydney Kingsford Smith

Which airport is the most popular layover for flights between Austin and Sydney?

Los Angeles (LAX) was the most common stop: 89% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Austin to Sydney?

Houston (IAH) has the shortest average layover time for this route: 1h 33m.

What airlines fly to Sydney?

Qantas Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Sydney from Austin according to our data. Qantas Airways is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?

Prices for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport are updated daily.

How many operators does momondo search for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?

The number of operators available for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport is 5 as of August 2026.

How old do you have to be to fly from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$680 Cheap Flights from Austin to Sydney in 2026

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Round-trip

One-way

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Cheap round-trip flights

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10:58 am - 11:50 am

AUS

SYD

33h 52m

3 stops

1:15 pm - 2:37 pm

SYD

AUS

40h 22m

3 stops

$1,048Multiple Airlines

Fri, Sep 18 - Mon, Sep 28

10:58 am - 11:50 am

AUS

SYD

33h 52m

3 stops

1:15 pm - 2:37 pm

SYD

AUS

40h 22m

3 stops

$1,070Multiple Airlines

Mon, Sep 14 - Mon, Sep 21

1:39 pm - 6:55 am

AUS

SYD

26h 16m

1 stop

10:20 am - 9:59 pm

SYD

AUS

26h 39m

1 stop

$1,187United Airlines

Wed, Aug 19 - Mon, Sep 7

9:33 am - 7:00 am

AUS

SYD

30h 27m

2 stops

10:20 am - 2:12 pm

SYD

AUS

18h 52m

1 stop

$1,191United Airlines

Wed, Aug 19 - Mon, Sep 7

9:00 am - 8:20 am

AUS

SYD

31h 20m

1 stop

11:20 am - 4:58 pm

SYD

AUS

22h 38m

2 stops

$1,191Air New Zealand

Mon, Oct 19 - Tue, Nov 10

9:00 am - 8:20 am

AUS

SYD

31h 20m

1 stop

11:20 am - 4:58 pm

SYD

AUS

22h 38m

2 stops

$1,191Air New Zealand

Tue, Oct 20 - Tue, Nov 10

3:23 pm - 10:20 am

AUS

SYD

25h 57m

2 stops

2:05 pm - 3:30 pm

SYD

AUS

18h 25m

1 stop

$1,206Qantas Airways

Fri, Nov 13 - Tue, Nov 17

3:23 pm - 9:00 am

AUS

SYD

24h 37m

1 stop

5:50 pm - 12:56 pm

SYD

AUS

36h 06m

2 stops

$1,212Qantas Airways

Tue, Dec 1 - Fri, Dec 25

5:44 pm - 6:55 am

AUS

SYD

20h 11m

1 stop

2:05 pm - 3:37 pm

SYD

AUS

18h 32m

1 stop

$1,303American Airlines

Wed, Nov 18 - Sun, Nov 29

1:51 pm - 6:25 am

AUS

SYD

23h 34m

2 stops

11:20 am - 7:23 pm

SYD

AUS

25h 03m

1 stop

$1,307American Airlines

Tue, Nov 3 - Mon, Dec 7

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Qantas Airways flights from Austin to Sydney

Our best Qantas Airways deals on Austin to Sydney flight tickets

Qantas Airways

Aug 2

AUS8:43 pmAustin Bergstrom

19h 22m

1 stop

SYD7:05 amSydney Kingsford Smith

Aug 20

SYD9:10 amSydney Kingsford Smith

20h 09m

1 stop

AUS2:19 pmAustin Bergstrom

$1,203

Qantas Airways

Nov 13

AUS3:23 pmAustin Bergstrom

25h 57m

2 stops

SYD10:20 amSydney Kingsford Smith

Nov 17

SYD2:05 pmSydney Kingsford Smith

18h 25m

1 stop

AUS3:30 pmAustin Bergstrom

$1,206

Qantas Airways

Dec 1

AUS3:23 pmAustin Bergstrom

24h 37m

1 stop

SYD9:00 amSydney Kingsford Smith

Dec 25

SYD5:50 pmSydney Kingsford Smith

36h 06m

2 stops

AUS12:56 pmAustin Bergstrom

$1,212

United Airlines flights from Austin to Sydney

Our best United Airlines deals on Austin to Sydney flight tickets

United Airlines

Aug 19

AUS1:39 pmAustin Bergstrom

26h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

Sep 7

SYD10:20 amSydney Kingsford Smith

26h 39m

1 stop

AUS9:59 pmAustin Bergstrom

$1,187

United Airlines

Aug 19

AUS9:33 amAustin Bergstrom

30h 27m

2 stops

SYD7:00 amSydney Kingsford Smith

Sep 7

SYD10:20 amSydney Kingsford Smith

18h 52m

1 stop

AUS2:12 pmAustin Bergstrom

$1,191

United Airlines

Oct 26

AUS8:01 pmAustin Bergstrom

44h 39m

2 stops

SYD8:40 amSydney Kingsford Smith

Oct 29

SYD11:50 amSydney Kingsford Smith

27h 05m

1 stop

AUS10:55 pmAustin Bergstrom

$1,218

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 9/18

10:58 am-11:50 am

3 stops33h 52m

Sydney Kingsford Smith

Mon 9/28

1:15 pm-2:37 pm

3 stops40h 22m

$1,048

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 9/14

10:58 am-11:50 am

3 stops33h 52m

Sydney Kingsford Smith

Mon 9/21

1:15 pm-2:37 pm

3 stops40h 22m

$1,070

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 8/19

1:39 pm-6:55 am

1 stop26h 16m

Sydney Kingsford Smith

Mon 9/7

10:20 am-9:59 pm

1 stop26h 39m

$1,187

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 8/19

9:33 am-7:00 am

2 stops30h 27m

Sydney Kingsford Smith

Mon 9/7

10:20 am-2:12 pm

1 stop18h 52m

$1,191

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Mon 10/19

9:00 am-8:20 am

1 stop31h 20m

Sydney Kingsford Smith

Tue 11/10

11:20 am-4:58 pm

2 stops22h 38m

$1,191

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 10/20

9:00 am-8:20 am

1 stop31h 20m

Sydney Kingsford Smith

Tue 11/10

11:20 am-4:58 pm

2 stops22h 38m

$1,191

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 11/13

3:23 pm-10:20 am

2 stops25h 57m

Sydney Kingsford Smith

Tue 11/17

2:05 pm-3:30 pm

1 stop18h 25m

$1,206

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 12/1

3:23 pm-9:00 am

1 stop24h 37m

Sydney Kingsford Smith

Fri 12/25

5:50 pm-12:56 pm

2 stops36h 06m

$1,212

Quickest round-trip

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 11/18

5:44 pm-6:55 am

1 stop20h 11m

Sydney Kingsford Smith

Sun 11/29

2:05 pm-3:37 pm

1 stop18h 32m

$1,303

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 11/3

1:51 pm-6:25 am

2 stops23h 34m

Sydney Kingsford Smith

Mon 12/7

11:20 am-7:23 pm

1 stop25h 03m

$1,307

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Austin to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Austin and Sydney?

Prices are currently typical for flights on this route.

Typical prices usually range from $963 to $1,348.
The lowest price recently found on this route was $1,048.

What is the cheapest month to fly to Sydney?

In general, January is the cheapest month to fly from Austin to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $989. If you are unable to visit Sydney during the month of January, then departing from Austin during the month August is also very affordable. Most momondo users find prices during this month for around $1,008.

How far in advance should I book a flight from Austin to Sydney?

You are more likely to see cheaper flights to Sydney from Austin when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $1,280 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Austin for as low as $1,164 on momondo.

Can stopping save me money on Austin to Sydney flights?

You could potentially save up to 11% on your flight if you consider stops on a Austin to Sydney flight.

How have Austin to Sydney flight prices changed over time?

When to book flights from Austin to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Austin to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Austin to Sydney (AUS to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Austin to Sydney

Fastest flight time	20h 26m
Direct flights	None

The fastest flight from Austin to Sydney takes 20h 26m

There are no direct flights from Austin to Sydney. There are no popular flight routes from Austin to Sydney.

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Frequently asked questions about flying from Austin to Sydney

How far is Austin Bergstrom to Sydney Kingsford Smith by plane?
Austin Bergstrom and Sydney Kingsford Smith are 8463.9 mi apart from one another. Typically, this will take 20h 26m by plane in normal conditions.
When did momondo last update prices for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
Prices for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport are updated daily.
How many operators does momondo search for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
The number of operators available for flights from Austin Bergstrom Airport to Sydney Kingsford Smith Airport is 5 as of August 2026.
How old do you have to be to fly from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Austin Bergstrom Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Austin to Sydney?
momondo data reveals that the most frequently booked airline on the route from Austin to Sydney is Qantas Airways, representing 34% of all bookings. The subsequent popular airlines are United Airlines at 28%, American Airlines at 18%, and Delta at 13%.

Best airlines flying from Austin to Sydney

Compare and see reviews for airlines that fly from Austin to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $287	Free Cancellation	Rating 7.8 8,497 reviews	Search Delta flights
American Airlines	PriceFrom $945	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights
Qantas Airways	PriceFrom $948	Free Cancellation	Rating 7.5 1,073 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $962	Free Cancellation	Rating 7.4 10,062 reviews	Search United Airlines flights
Air New Zealand	PriceFrom $1,163	Free Cancellation	Rating 8.0 657 reviews	Search Air New Zealand flights

Parramatta

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Wollongong

Penrith

Katoomba

Leura

Cronulla

Randwick

Manly

Lithgow

Coogee

Terrigal

Charlestown

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Austin to Sydney?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Austin to Sydney. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Austin to Sydney with flexible booking policies on momondo?

All flight searches from Austin to Sydney on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Austin to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Austin. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Austin to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Austin to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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Cheap flights from Austin to Sydney from $680

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Austin to Sydney departing on 11/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qantas Airways flights from Austin to Sydney

Our best Qantas Airways deals on Austin to Sydney flight tickets

United Airlines flights from Austin to Sydney

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How to get the cheapest flight ticket from Austin to Sydney

What is the typical price of a round-trip flight between Austin and Sydney?

What is the cheapest month to fly to Sydney?

How far in advance should I book a flight from Austin to Sydney?

Can stopping save me money on Austin to Sydney flights?

How have Austin to Sydney flight prices changed over time?

What is the cheapest airline that flies from Austin Bergstrom to Sydney Kingsford Smith?

What airlines fly to Sydney?

Which airport is the most popular layover for flights between Austin and Sydney?

Which layover airport offers the lowest fares from Austin to Sydney?

Which layover airport has the shortest travel time from Austin to Sydney?

Which layover airport has the shortest connection time from Austin to Sydney?

When to book flights from Austin to Sydney

Cheap Austin to Sydney (AUS to SYD) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Austin to Sydney

Best airlines flying from Austin to Sydney

Compare and see reviews for airlines that fly from Austin to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

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List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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