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

Qantas Airways is the most popular carrier 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.

$173 Cheap Flights from Austin to Sydney in 2025/26

1 adult

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Find the cheapest flights from Austin to Sydney

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14:15 - 07:20

AUS

SYD

26h 05m2 stops

09:20 - 20:02

SYD

AUS

25h 42m1 stop

$1,274Multiple Airlines

Wed, 6 May - Wed, 20 May

11:55 - 07:20

AUS

SYD

28h 25m1 stop

09:20 - 20:02

SYD

AUS

25h 42m1 stop

$1,285Air Canada

Wed, 6 May - Wed, 20 May

13:00 - 09:35

AUS

SYD

27h 35m2 stops

11:20 - 16:55

SYD

AUS

22h 35m2 stops

$1,296Multiple Airlines

Tue, 17 Feb - Wed, 25 Feb

13:05 - 09:35

AUS

SYD

27h 30m2 stops

11:20 - 16:55

SYD

AUS

22h 35m2 stops

$1,299Multiple Airlines

Wed, 18 Feb - Wed, 25 Feb

09:55 - 07:20

AUS

SYD

30h 25m2 stops

09:20 - 12:00

SYD

AUS

41h 40m2 stops

$1,347Air Canada

Thu, 9 Apr - Tue, 14 Apr

13:05 - 08:35

AUS

SYD

50h 30m2 stops

10:25 - 11:20

SYD

AUS

40h 55m2 stops

$1,349Air Canada

Sat, 7 Mar - Mon, 16 Mar

12:55 - 07:20

AUS

SYD

27h 25m2 stops

09:20 - 12:00

SYD

AUS

41h 40m2 stops

$1,352Air Canada

Sun, 12 Apr - Thu, 23 Apr

09:55 - 07:20

AUS

SYD

54h 25m3 stops

09:20 - 12:00

SYD

AUS

41h 40m2 stops

$1,356Air Canada

Thu, 9 Apr - Tue, 14 Apr

10:25 - 07:20

AUS

SYD

53h 55m2 stops

07:00 - 20:02

SYD

AUS

28h 02m2 stops

$1,359Air 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

$1,364Multiple Airlines

Sat, 7 Feb - Sat, 21 Feb

Qantas Airways flights from Austin to Sydney

Our best Qantas Airways deals on Austin to Sydney flight tickets

Qantas Airways

9 Apr

AUS15:05Austin Bergstrom

25h 25m

1 stop

SYD07:30Sydney Kingsford Smith

14 Apr

SYD17:50Sydney Kingsford Smith

20h 09m

1 stop

AUS22:59Austin Bergstrom

$1,370

Find similar

Qantas Airways

19 Mar

AUS19:57Austin Bergstrom

21h 03m

1 stop

SYD09:00Sydney Kingsford Smith

26 Mar

SYD17:45Sydney Kingsford Smith

22h 14m

1 stop

AUS23:59Austin Bergstrom

$1,389

Find similar

Qantas Airways

1 May

AUS19:32Austin Bergstrom

20h 33m

1 stop

SYD07:05Sydney Kingsford Smith

10 May

SYD09:10Sydney Kingsford Smith

20h 25m

1 stop

AUS14:35Austin Bergstrom

$1,401

Find similar

American Airlines flights from Austin to Sydney

Our best American Airlines deals on Austin to Sydney flight tickets

American Airlines

5 Feb

AUS18:25Austin Bergstrom

20h 00m

1 stop

SYD07:25Sydney Kingsford Smith

12 Feb

SYD11:20Sydney Kingsford Smith

19h 24m

1 stop

AUS13:44Austin Bergstrom

$1,417

Find similar

American Airlines

8 Mar

AUS15:29Austin Bergstrom

22h 41m

2 stops

SYD06:10Sydney Kingsford Smith

18 Mar

SYD11:20Sydney Kingsford Smith

21h 38m

2 stops

AUS16:58Austin Bergstrom

$1,423

Find similar

American Airlines

1 Feb

AUS14:52Austin Bergstrom

25h 28m

2 stops

SYD09:20Sydney Kingsford Smith

14 Feb

SYD11:20Sydney Kingsford Smith

21h 18m

2 stops

AUS15:38Austin Bergstrom

$1,435

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 6/5

14:15-07:20

2 stops26h 05m

Sydney Kingsford Smith

Wed 20/5

09:20-20:02

1 stop25h 42m

$1,274

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 6/5

11:55-07:20

1 stop28h 25m

Sydney Kingsford Smith

Wed 20/5

09:20-20:02

1 stop25h 42m

$1,285

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Tue 17/2

13:00-09:35

2 stops27h 35m

Sydney Kingsford Smith

Wed 25/2

11:20-16:55

2 stops22h 35m

$1,296

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Wed 18/2

13:05-09:35

2 stops27h 30m

Sydney Kingsford Smith

Wed 25/2

11:20-16:55

2 stops22h 35m

$1,299

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Thu 9/4

09:55-07:20

2 stops30h 25m

Sydney Kingsford Smith

Tue 14/4

09:20-12:00

2 stops41h 40m

$1,347

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 7/3

13:05-08:35

2 stops50h 30m

Sydney Kingsford Smith

Mon 16/3

10:25-11:20

2 stops40h 55m

$1,349

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sun 12/4

12:55-07:20

2 stops27h 25m

Sydney Kingsford Smith

Thu 23/4

09:20-12:00

2 stops41h 40m

$1,352

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Thu 9/4

09:55-07:20

3 stops54h 25m

Sydney Kingsford Smith

Tue 14/4

09:20-12:00

2 stops41h 40m

$1,356

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Fri 1/5

10:25-07:20

2 stops53h 55m

Sydney Kingsford Smith

Sun 10/5

07:00-20:02

2 stops28h 02m

$1,359

AustinSydney

AUS - SYD

AUSSYD

Austin Bergstrom

Sat 7/2

13:05-09:35

2 stops51h 30m

Sydney Kingsford Smith

Sat 21/2

11:20-16:56

2 stops22h 36m

$1,364

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 $1,495. 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 $1,498.

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 $339. The most expensive day to fly to Sydney is Tuesday, with ticket prices averaging around $601.

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 $302. 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 $565 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 $1,755 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 $1,635 on momondo.

How have Austin to Sydney flight prices changed over time?

As of December 2025, prices for Austin to Sydney flights are approximately 41% 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.