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

United Airlines is the most popular carrier operating from Ontario to Sydney Kingsford Smith

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.

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.

$716 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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One-way

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Enter your travel dates to find the best prices.

18:41 - 09:15ONT-SYD

19h 34m1 stop

12:10 - 12:17SYD-ONT

19h 07m1 stop

$1,487United Airlines

Find Deal

Fri, 5 Dec - Tue, 9 Dec

18:39 - 09:15ONT-SYD

19h 36m1 stop

12:10 - 12:38SYD-ONT

19h 28m1 stop

$1,498United Airlines

Find Deal

Sun, 8 Feb - Mon, 23 Feb

06:00 - 07:00ONT-SYD

30h 00m1 stop

11:50 - 22:36SYD-ONT

28h 46m1 stop

$1,499United Airlines

Find Deal

Sun, 1 Mar - Sun, 22 Mar

06:00 - 07:00ONT-SYD

30h 00m1 stop

12:10 - 17:37SYD-ONT

24h 27m1 stop

$1,502United Airlines

Find Deal

Thu, 11 Dec - Mon, 15 Dec

06:00 - 07:00ONT-SYD

30h 00m1 stop

11:50 - 21:49SYD-ONT

28h 59m1 stop

$1,504United Airlines

Find Deal

Tue, 2 Dec - Sat, 6 Dec

13:40 - 09:15ONT-SYD

24h 35m1 stop

12:10 - 20:42SYD-ONT

27h 32m2 stops

$1,506United Airlines

Find Deal

Sun, 30 Nov - Wed, 3 Dec

06:00 - 07:00ONT-SYD

30h 00m2 stops

12:10 - 12:18SYD-ONT

19h 08m1 stop

$1,507United Airlines

Find Deal

Sat, 6 Dec - Sat, 13 Dec

18:37 - 06:20ONT-SYD

17h 43m1 stop

12:10 - 12:18SYD-ONT

18h 08m1 stop

$1,509United Airlines

Find Deal

Fri, 13 Mar - Sat, 21 Mar

13:45 - 09:15ONT-SYD

24h 30m1 stop

12:10 - 20:50SYD-ONT

27h 40m2 stops

$1,510United Airlines

Find Deal

Sun, 15 Feb - Thu, 19 Feb

18:32 - 06:20ONT-SYD

40h 48m1 stop

12:10 - 12:47SYD-ONT

19h 37m1 stop

$1,512United Airlines

Find Deal

Sat, 24 Jan - Sat, 14 Feb

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

23 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

7 Dec

SYD14:00Sydney Kingsford Smith

17h 18m

1 stop

ONT12:18Ontario

$1,481

Find similar

United Airlines

23 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

7 Dec

SYD14:00Sydney Kingsford Smith

17h 18m

1 stop

ONT12:18Ontario

$1,482

Find similar

United Airlines

23 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

7 Dec

SYD14:00Sydney Kingsford Smith

17h 18m

1 stop

ONT12:18Ontario

$1,484

Find similar

China Airlines flights from Ontario to Sydney

Our best China Airlines deals on Ontario to Sydney flight tickets

China Airlines

25 Nov

ONT22:50Ontario

42h 25m

1 stop

SYD12:15Sydney Kingsford Smith

3 Dec

SYD22:10Sydney Kingsford Smith

37h 40m

1 stop

ONT16:50Ontario

$4,015

Find similar

China Airlines

27 Nov

ONT22:50Ontario

42h 25m

1 stop

SYD12:15Sydney Kingsford Smith

3 Dec

SYD22:10Sydney Kingsford Smith

37h 40m

1 stop

ONT16:50Ontario

$4,094

Find similar

China Airlines

27 Nov

ONT22:50Ontario

42h 25m

1 stop

SYD12:15Sydney Kingsford Smith

2 Dec

SYD22:10Sydney Kingsford Smith

37h 40m

1 stop

ONT16:50Ontario

$5,271

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 5/12

18:41-09:15

1 stop19h 34m

Sydney Kingsford Smith

Tue 9/12

12:10-12:17

1 stop19h 07m

$1,487

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 8/2

18:39-09:15

1 stop19h 36m

Sydney Kingsford Smith

Mon 23/2

12:10-12:38

1 stop19h 28m

$1,498

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 1/3

06:00-07:00

1 stop30h 00m

Sydney Kingsford Smith

Sun 22/3

11:50-22:36

1 stop28h 46m

$1,499

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 11/12

06:00-07:00

1 stop30h 00m

Sydney Kingsford Smith

Mon 15/12

12:10-17:37

1 stop24h 27m

$1,502

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 2/12

06:00-07:00

1 stop30h 00m

Sydney Kingsford Smith

Sat 6/12

11:50-21:49

1 stop28h 59m

$1,504

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 30/11

13:40-09:15

1 stop24h 35m

Sydney Kingsford Smith

Wed 3/12

12:10-20:42

2 stops27h 32m

$1,506

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 6/12

06:00-07:00

2 stops30h 00m

Sydney Kingsford Smith

Sat 13/12

12:10-12:18

1 stop19h 08m

$1,507

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 13/3

18:37-06:20

1 stop17h 43m

Sydney Kingsford Smith

Sat 21/3

12:10-12:18

1 stop18h 08m

$1,509

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 15/2

13:45-09:15

1 stop24h 30m

Sydney Kingsford Smith

Thu 19/2

12:10-20:50

2 stops27h 40m

$1,510

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 24/1

18:32-06:20

1 stop40h 48m

Sydney Kingsford Smith

Sat 14/2

12:10-12:47

1 stop19h 37m

$1,512

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 $1,389. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $2,039.

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 $1,493. 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 $1,978 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.

Search flight deals

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 34m, 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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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.