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 52% 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 is the most popular carrier 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.

$676 Cheap Flights from Ontario to Sydney in 2026

1 adult

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Find the cheapest flights from Ontario to Sydney

Round-trip

One-way

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Cheap return flights

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06:00 - 06:50

ONT

SYD

31h 50m

2 stops

09:15 - 23:44

SYD

ONT

31h 29m

2 stops

$1,431Delta

Mon, 13 Apr - Mon, 20 Apr

08:00 - 18:50

ONT

SYD

17h 50m

1 stop

20:45 - 21:28

SYD

ONT

17h 43m

1 stop

$1,481Multiple Airlines

Wed, 26 Aug - Tue, 1 Sep

08:00 - 18:50

ONT

SYD

17h 50m

1 stop

20:45 - 21:28

SYD

ONT

17h 43m

1 stop

$1,491Multiple Airlines

Sat, 29 Aug - Tue, 15 Sep

08:00 - 18:50

ONT

SYD

17h 50m

1 stop

20:45 - 21:28

SYD

ONT

17h 43m

1 stop

$1,501Multiple Airlines

Mon, 24 Aug - Tue, 8 Sep

09:40 - 18:50

ONT

SYD

40h 10m

1 stop

20:45 - 22:17

SYD

ONT

18h 32m

1 stop

$1,504Multiple Airlines

Wed, 13 May - Sun, 17 May

09:11 - 18:50

ONT

SYD

40h 39m

1 stop

20:45 - 21:47

SYD

ONT

18h 02m

1 stop

$1,505Multiple Airlines

Fri, 24 Jul - Tue, 4 Aug

18:49 - 06:55

ONT

SYD

19h 06m

1 stop

10:20 - 12:20

SYD

ONT

19h 00m

1 stop

$1,510United Airlines

Wed, 8 Apr - Wed, 22 Apr

18:49 - 06:55

ONT

SYD

19h 06m

1 stop

10:20 - 09:41

SYD

ONT

16h 21m

1 stop

$1,511United Airlines

Mon, 20 Apr - Wed, 6 May

13:50 - 06:20

ONT

SYD

22h 30m

2 stops

10:20 - 09:41

SYD

ONT

16h 21m

1 stop

$1,517United Airlines

Wed, 25 Mar - Wed, 13 May

13:27 - 08:00

ONT

SYD

24h 33m

2 stops

09:30 - 17:47

SYD

ONT

25h 17m

2 stops

$1,518United Airlines

Wed, 1 Apr - Sun, 26 Apr

Air New Zealand flights from Ontario to Sydney

Our best Air New Zealand deals on Ontario to Sydney flight tickets

Air New Zealand

24 Mar

ONT18:37Ontario

20h 38m

1 stop

SYD09:15Sydney Kingsford Smith

5 May

SYD10:20Sydney Kingsford Smith

16h 21m

1 stop

ONT09:41Ontario

$1,583

Air New Zealand

12 Mar

ONT13:40Ontario

25h 35m

1 stop

SYD09:15Sydney Kingsford Smith

7 Apr

SYD10:20Sydney Kingsford Smith

16h 36m

1 stop

ONT09:56Ontario

$1,885

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

8 Mar

ONT18:37Ontario

17h 43m

1 stop

SYD06:20Sydney Kingsford Smith

23 Mar

SYD12:10Sydney Kingsford Smith

18h 08m

1 stop

ONT12:18Ontario

$1,498

United Airlines

4 Aug

ONT18:39Ontario

19h 16m

1 stop

SYD06:55Sydney Kingsford Smith

19 Aug

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

$1,500

United Airlines

8 Mar

ONT18:37Ontario

17h 43m

1 stop

SYD06:20Sydney Kingsford Smith

23 Mar

SYD12:10Sydney Kingsford Smith

18h 08m

1 stop

ONT12:18Ontario

$1,501

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 13/4

06:00-06:50

2 stops31h 50m

Sydney Kingsford Smith

Mon 20/4

09:15-23:44

2 stops31h 29m

$1,431

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 26/8

08:00-18:50

1 stop17h 50m

Sydney Kingsford Smith

Tue 1/9

20:45-21:28

1 stop17h 43m

$1,481

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 29/8

08:00-18:50

1 stop17h 50m

Sydney Kingsford Smith

Tue 15/9

20:45-21:28

1 stop17h 43m

$1,491

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 24/8

08:00-18:50

1 stop17h 50m

Sydney Kingsford Smith

Tue 8/9

20:45-21:28

1 stop17h 43m

$1,501

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 13/5

09:40-18:50

1 stop40h 10m

Sydney Kingsford Smith

Sun 17/5

20:45-22:17

1 stop18h 32m

$1,504

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 24/7

09:11-18:50

1 stop40h 39m

Sydney Kingsford Smith

Tue 4/8

20:45-21:47

1 stop18h 02m

$1,505

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 8/4

18:49-06:55

1 stop19h 06m

Sydney Kingsford Smith

Wed 22/4

10:20-12:20

1 stop19h 00m

$1,510

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 20/4

18:49-06:55

1 stop19h 06m

Sydney Kingsford Smith

Wed 6/5

10:20-09:41

1 stop16h 21m

$1,511

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 25/3

13:50-06:20

2 stops22h 30m

Sydney Kingsford Smith

Wed 13/5

10:20-09:41

1 stop16h 21m

$1,517

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 1/4

13:27-08:00

2 stops24h 33m

Sydney Kingsford Smith

Sun 26/4

09:30-17:47

2 stops25h 17m

$1,518

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 $1,271. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,749.

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

Fastest flight time	17h 43m
Direct flights	None

The fastest flight from Ontario to Sydney takes 17h 43m

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 17h 43m, 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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Katoomba

Lithgow

Manly

Leura

Coogee

Bondi Beach

Cronulla

Randwick

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.