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

Air Canada, American Airlines, and United Airlines are the most popular carriers operating from Austin Bergstrom to Sydney Kingsford Smith

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 were last updated today.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$175 Cheap Flights from Austin to Sydney in 2025/26

1 adult

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16:52 - 09:35

AUS

SYD

23h 43m2 stops

11:20 - 12:19

SYD

AUS

41h 59m2 stops

$1,299Multiple Airlines

Tue, 17 Feb - Wed, 25 Feb

16:52 - 09:35

AUS

SYD

23h 43m2 stops

11:20 - 21:27

SYD

AUS

51h 07m3 stops

$1,305Multiple Airlines

Tue, 17 Feb - Wed, 25 Feb

20:30 - 09:35

AUS

SYD

44h 05m2 stops

11:20 - 11:24

SYD

AUS

41h 04m2 stops

$1,371Air Canada

Sun, 1 Feb - Mon, 9 Feb

10:25 - 07:20

AUS

SYD

53h 55m2 stops

06:00 - 20:02

SYD

AUS

29h 02m2 stops

$1,374Air Canada

Fri, 1 May - Sun, 10 May

13:05 - 09:35

AUS

SYD

51h 30m2 stops

11:20 - 16:56

SYD

AUS

22h 36m2 stops

$1,380Multiple Airlines

Sat, 14 Feb - Sat, 28 Feb

10:25 - 07:20

AUS

SYD

53h 55m3 stops

07:00 - 20:02

SYD

AUS

28h 02m2 stops

$1,385Air Canada

Fri, 1 May - Sun, 10 May

11:55 - 07:20

AUS

SYD

28h 25m1 stop

06:00 - 20:02

SYD

AUS

29h 02m2 stops

$1,388Air Canada

Fri, 1 May - Sun, 10 May

16:52 - 09:35

AUS

SYD

23h 43m2 stops

11:20 - 12:19

SYD

AUS

41h 59m2 stops

$1,395Multiple Airlines

Tue, 17 Feb - Wed, 25 Feb

18:25 - 07:25

AUS

SYD

20h 00m1 stop

11:20 - 22:56

SYD

AUS

28h 36m1 stop

$1,400Qantas Airways

Sun, 1 Feb - Mon, 9 Feb

15:35 - 09:35

AUS

SYD

25h 00m2 stops

11:20 - 21:27

SYD

AUS

51h 07m3 stops

$1,401Multiple Airlines

Tue, 17 Feb - Wed, 25 Feb

Air Canada flights from Austin to Sydney

Our best Air Canada deals on Austin to Sydney flight tickets

Air Canada

1 Feb

AUS20:30Austin Bergstrom

44h 05m

2 stops

SYD09:35Sydney Kingsford Smith

9 Feb

SYD11:20Sydney Kingsford Smith

41h 04m

2 stops

AUS11:24Austin Bergstrom

$1,371

Find similar

Air Canada

1 May

AUS10:25Austin Bergstrom

53h 55m

2 stops

SYD07:20Sydney Kingsford Smith

10 May

SYD06:00Sydney Kingsford Smith

29h 02m

2 stops

AUS20:02Austin Bergstrom

$1,374

Find similar

Air Canada

1 May

AUS10:25Austin Bergstrom

53h 55m

3 stops

SYD07:20Sydney Kingsford Smith

10 May

SYD07:00Sydney Kingsford Smith

28h 02m

2 stops

AUS20:02Austin Bergstrom

$1,385

Find similar

Qantas Airways flights from Austin to Sydney

Our best Qantas Airways deals on Austin to Sydney flight tickets

Qantas Airways

1 Feb

AUS18:25Austin Bergstrom

20h 00m

1 stop

SYD07:25Sydney Kingsford Smith

9 Feb

SYD11:20Sydney Kingsford Smith

28h 36m

1 stop

AUS22:56Austin Bergstrom

$1,400

Find similar

Qantas Airways

4 Feb

AUS18:25Austin Bergstrom

45h 45m

2 stops

SYD09:10Sydney Kingsford Smith

11 Feb

SYD11:20Sydney Kingsford Smith

23h 15m

1 stop

AUS17:35Austin Bergstrom

$1,420

Find similar

Qantas Airways

14 Mar

AUS19:52Austin Bergstrom

21h 08m

1 stop

SYD09:00Sydney Kingsford Smith

26 Mar

SYD17:45Sydney Kingsford Smith

22h 14m

1 stop

AUS23:59Austin Bergstrom

$1,498

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 17/2

16:52-09:35

2 stops23h 43m

Sydney Kingsford Smith

Wed 25/2

11:20-12:19

2 stops41h 59m

$1,299

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 17/2

16:52-09:35

2 stops23h 43m

Sydney Kingsford Smith

Wed 25/2

11:20-21:27

3 stops51h 07m

$1,305

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 1/2

20:30-09:35

2 stops44h 05m

Sydney Kingsford Smith

Mon 9/2

11:20-11:24

2 stops41h 04m

$1,371

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 1/5

10:25-07:20

2 stops53h 55m

Sydney Kingsford Smith

Sun 10/5

06:00-20:02

2 stops29h 02m

$1,374

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 14/2

13:05-09:35

2 stops51h 30m

Sydney Kingsford Smith

Sat 28/2

11:20-16:56

2 stops22h 36m

$1,380

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 1/5

10:25-07:20

3 stops53h 55m

Sydney Kingsford Smith

Sun 10/5

07:00-20:02

2 stops28h 02m

$1,385

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 1/5

11:55-07:20

1 stop28h 25m

Sydney Kingsford Smith

Sun 10/5

06:00-20:02

2 stops29h 02m

$1,388

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 17/2

16:52-09:35

2 stops23h 43m

Sydney Kingsford Smith

Wed 25/2

11:20-12:19

2 stops41h 59m

$1,395

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 1/2

18:25-07:25

1 stop20h 00m

Sydney Kingsford Smith

Mon 9/2

11:20-22:56

1 stop28h 36m

$1,400

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 17/2

15:35-09:35

2 stops25h 00m

Sydney Kingsford Smith

Wed 25/2

11:20-21:27

3 stops51h 07m

$1,401

Flights are sorted by cheapest return 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

What is the cheapest month to fly to Sydney?

The month of May is, on average, the cheapest month to fly to Sydney from Austin, with most prices found around $1,515. If you aren’t able to travel to Sydney during the month of May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,518.

What is the cheapest day to depart on your flight to Sydney?

Our data shows that Friday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $344. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $609.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from Austin to Sydney in the evening for as low as $306. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $572 on average. Flights to Sydney from Austin in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight 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 $1,787 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Austin for as low as $1,657 on momondo.

How have Austin to Sydney flight prices changed over time?

As of December 2025, prices for Austin to Sydney flights are approximately 42% cheaper when compared to flights at the same time last year.

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 return 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 00m
Direct flights	None

The fastest flight from Austin to Sydney takes 20h 00m

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

Search flight deals

How far is Austin Bergstrom to Sydney Kingsford Smith by plane?
A flight from Austin Bergstrom to Sydney Kingsford Smith will travel around 13621.3 km. Flights usually cover this in 20h 00m, depending on flying conditions and air traffic around both airports.
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 were last updated today.
How old do you have to be to fly from Austin Bergstrom Airport to Sydney Kingsford Smith Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 travel and health documents required for your trip to Sydney Kingsford Smith Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Sydney Kingsford Smith Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Parramatta

Wollongong

Terrigal

Penrith

Katoomba

Lithgow

Leura

Manly

Bondi Beach

Coogee

Cronulla

Randwick

Charlestown

Newport

Swansea

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Austin to Sydney. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Sydney from Austin on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Sydney from Austin.

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

Of course. momondo tracks the price of Austin to Sydney flights. All you need is a valid email address and we will do the rest; it is that quick and easy.