Which airlines fly to Sydney?

Qantas Airways, United Airlines and Fiji Airways are the top three most popular airlines that fly to Sydney from Ontario according to our data. Qantas Airways is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 8 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Alaska Airlines, and Hawaiian Airlines are the most popular carriers operating from Ontario to Sydney Kingsford Smith

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

Prices for flights from Ontario Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ontario 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.

$710 Cheap Flights from Ontario to Sydney in 2025/26

1 adult

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Find the cheapest flights from Ontario to Sydney

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06:00 - 06:35ONT-SYD

31h 35m2 stops

09:25 - 23:44SYD-ONT

31h 19m2 stops

$1,415Delta

Find Deal

Mon, 4 May - Wed, 13 May

18:53 - 07:55ONT-SYD

19h 02m1 stop

10:20 - 09:55SYD-ONT

16h 35m1 stop

$1,473United Airlines

Find Deal

Sun, 29 Mar - Tue, 14 Apr

18:53 - 06:55ONT-SYD

19h 02m1 stop

10:20 - 12:20SYD-ONT

19h 00m1 stop

$1,486United Airlines

Find Deal

Tue, 5 May - Tue, 19 May

13:40 - 09:15ONT-SYD

24h 35m1 stop

14:00 - 17:43SYD-ONT

22h 43m1 stop

$1,490United Airlines

Find Deal

Mon, 1 Dec - Sat, 20 Dec

13:34 - 06:55ONT-SYD

24h 21m2 stops

10:20 - 09:55SYD-ONT

16h 35m1 stop

$1,492United Airlines

Find Deal

Wed, 8 Apr - Tue, 21 Apr

13:40 - 09:05ONT-SYD

24h 25m2 stops

14:00 - 17:37SYD-ONT

22h 37m1 stop

$1,493United Airlines

Find Deal

Mon, 1 Dec - Tue, 16 Dec

18:38 - 09:15ONT-SYD

19h 37m1 stop

12:10 - 17:34SYD-ONT

24h 24m1 stop

$1,495United Airlines

Find Deal

Sat, 22 Nov - Sat, 29 Nov

19:15 - 09:15ONT-SYD

20h 00m1 stop

11:50 - 20:45SYD-ONT

26h 55m2 stops

$1,496United Airlines

Find Deal

Mon, 16 Mar - Thu, 19 Mar

18:38 - 09:15ONT-SYD

19h 37m1 stop

12:10 - 20:44SYD-ONT

27h 34m2 stops

$1,498United Airlines

Find Deal

Mon, 24 Nov - Fri, 28 Nov

05:05 - 09:15ONT-SYD

33h 10m2 stops

12:10 - 17:34SYD-ONT

24h 24m1 stop

$1,501United Airlines

Find Deal

Sat, 22 Nov - Sat, 29 Nov

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

29 Mar

ONT18:53Ontario

19h 02m

1 stop

SYD07:55Sydney Kingsford Smith

14 Apr

SYD10:20Sydney Kingsford Smith

16h 35m

1 stop

ONT09:55Ontario

$1,473

Find similar

United Airlines

5 May

ONT18:53Ontario

19h 02m

1 stop

SYD06:55Sydney Kingsford Smith

19 May

SYD10:20Sydney Kingsford Smith

19h 00m

1 stop

ONT12:20Ontario

$1,486

Find similar

United Airlines

1 Dec

ONT13:40Ontario

24h 35m

1 stop

SYD09:15Sydney Kingsford Smith

20 Dec

SYD14:00Sydney Kingsford Smith

22h 43m

1 stop

ONT17:43Ontario

$1,490

Find similar

Lufthansa flights from Ontario to Sydney

Our best Lufthansa deals on Ontario to Sydney flight tickets

Lufthansa

1 Dec

ONT06:00Ontario

32h 15m

1 stop

SYD09:15Sydney Kingsford Smith

17 Dec

SYD12:10Sydney Kingsford Smith

29h 39m

1 stop

ONT22:49Ontario

$1,525

Find similar

Lufthansa

16 Nov

ONT13:40Ontario

24h 35m

1 stop

SYD09:15Sydney Kingsford Smith

1 Dec

SYD12:10Sydney Kingsford Smith

29h 41m

1 stop

ONT22:51Ontario

$1,946

Find similar

Lufthansa

16 Nov

ONT13:40Ontario

24h 35m

1 stop

SYD09:15Sydney Kingsford Smith

1 Dec

SYD12:10Sydney Kingsford Smith

29h 41m

1 stop

ONT22:51Ontario

$1,952

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 4/5

06:00-06:35

2 stops31h 35m

Sydney Kingsford Smith

Wed 13/5

09:25-23:44

2 stops31h 19m

$1,415

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 29/3

18:53-07:55

1 stop19h 02m

Sydney Kingsford Smith

Tue 14/4

10:20-09:55

1 stop16h 35m

$1,473

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 5/5

18:53-06:55

1 stop19h 02m

Sydney Kingsford Smith

Tue 19/5

10:20-12:20

1 stop19h 00m

$1,486

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 1/12

13:40-09:15

1 stop24h 35m

Sydney Kingsford Smith

Sat 20/12

14:00-17:43

1 stop22h 43m

$1,490

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 8/4

13:34-06:55

2 stops24h 21m

Sydney Kingsford Smith

Tue 21/4

10:20-09:55

1 stop16h 35m

$1,492

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 1/12

13:40-09:05

2 stops24h 25m

Sydney Kingsford Smith

Tue 16/12

14:00-17:37

1 stop22h 37m

$1,493

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 22/11

18:38-09:15

1 stop19h 37m

Sydney Kingsford Smith

Sat 29/11

12:10-17:34

1 stop24h 24m

$1,495

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 16/3

19:15-09:15

1 stop20h 00m

Sydney Kingsford Smith

Thu 19/3

11:50-20:45

2 stops26h 55m

$1,496

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 24/11

18:38-09:15

1 stop19h 37m

Sydney Kingsford Smith

Fri 28/11

12:10-20:44

2 stops27h 34m

$1,498

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 22/11

05:05-09:15

2 stops33h 10m

Sydney Kingsford Smith

Sat 29/11

12:10-17:34

1 stop24h 24m

$1,501

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 Ontario 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 day to depart on your flight to Sydney?

Our data shows that Monday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,378. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,022.

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 afternoon. momondo users have found flights departing from Ontario to Sydney in the afternoon for as low as $1,480. 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 at midday when prices are $1,962 on average. Flights to Sydney from Ontario at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from Ontario to Sydney

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

Estimated return price

Cheap Ontario to Sydney (ONT to SYD) flight deals and tips

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

Direct flights	None

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

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How far is Ontario to Sydney Kingsford Smith by plane?
The distance between Ontario and Sydney Kingsford Smith is about 12114.1 km. Flights usually cover this in 19h 02m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Ontario Airport to Sydney Kingsford Smith Airport?
Prices for flights from Ontario Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How old do you have to be to fly from Ontario Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ontario 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.

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Cronulla

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Charlestown

Newport

Swansea

Why use momondo?

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

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

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

Flights from Ontario to Sydney with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Ontario and Sydney by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Ontario 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.