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 43% 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.

$699 Cheap Flights from Ontario to Sydney in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Ontario to Sydney

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

13:53 - 06:20

ONT

SYD

21h 27m1 stop

12:10 - 11:18

SYD

ONT

18h 08m1 stop

$1,451United Airlines

Mon, 26 Jan - Sun, 8 Feb

13:53 - 06:20

ONT

SYD

21h 27m1 stop

12:10 - 11:18

SYD

ONT

18h 08m1 stop

$1,452United Airlines

Mon, 26 Jan - Sun, 8 Feb

13:53 - 06:20

ONT

SYD

21h 27m1 stop

12:10 - 11:18

SYD

ONT

18h 08m1 stop

$1,454United Airlines

Mon, 26 Jan - Sun, 8 Feb

18:53 - 06:55

ONT

SYD

19h 02m1 stop

10:20 - 12:22

SYD

ONT

19h 02m1 stop

$1,457United Airlines

Sun, 26 Apr - Sun, 10 May

13:53 - 09:15

ONT

SYD

24h 22m1 stop

11:50 - 22:00

SYD

ONT

29h 10m1 stop

$1,466United Airlines

Wed, 28 Jan - Mon, 23 Feb

18:32 - 09:15

ONT

SYD

19h 43m1 stop

12:10 - 17:43

SYD

ONT

24h 33m1 stop

$1,470United Airlines

Sat, 7 Feb - Wed, 11 Feb

13:53 - 09:15

ONT

SYD

24h 22m1 stop

11:50 - 20:50

SYD

ONT

28h 00m2 stops

$1,472United Airlines

Wed, 28 Jan - Wed, 4 Mar

05:05 - 06:20

ONT

SYD

30h 15m2 stops

11:50 - 22:00

SYD

ONT

29h 10m1 stop

$1,473United Airlines

Mon, 26 Jan - Mon, 23 Feb

18:32 - 09:15

ONT

SYD

19h 43m1 stop

14:00 - 12:17

SYD

ONT

17h 17m1 stop

$1,475United Airlines

Sat, 31 Jan - Sat, 7 Feb

05:05 - 09:15

ONT

SYD

33h 10m2 stops

12:10 - 17:43

SYD

ONT

24h 33m1 stop

$1,476United Airlines

Sat, 7 Feb - Wed, 11 Feb

Hawaiian Airlines flights from Ontario to Sydney

Our best Hawaiian Airlines deals on Ontario to Sydney flight tickets

Hawaiian Airlines

17 Jan

ONT08:13Ontario

40h 32m

1 stop

SYD19:45Sydney Kingsford Smith

22 Jan

SYD21:40Sydney Kingsford Smith

19h 48m

1 stop

ONT22:28Ontario

$1,538

Find similar

Hawaiian Airlines

19 Jan

ONT08:13Ontario

40h 32m

1 stop

SYD19:45Sydney Kingsford Smith

1 Feb

SYD21:40Sydney Kingsford Smith

19h 48m

1 stop

ONT22:28Ontario

$1,601

Find similar

Hawaiian Airlines

19 Jan

ONT08:13Ontario

40h 32m

1 stop

SYD19:45Sydney Kingsford Smith

1 Feb

SYD21:40Sydney Kingsford Smith

19h 48m

1 stop

ONT22:28Ontario

$1,640

Find similar

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

26 Jan

ONT13:53Ontario

21h 27m

1 stop

SYD06:20Sydney Kingsford Smith

8 Feb

SYD12:10Sydney Kingsford Smith

18h 08m

1 stop

ONT11:18Ontario

$1,451

Find similar

United Airlines

26 Jan

ONT13:53Ontario

21h 27m

1 stop

SYD06:20Sydney Kingsford Smith

8 Feb

SYD12:10Sydney Kingsford Smith

18h 08m

1 stop

ONT11:18Ontario

$1,452

Find similar

United Airlines

26 Jan

ONT13:53Ontario

21h 27m

1 stop

SYD06:20Sydney Kingsford Smith

8 Feb

SYD12:10Sydney Kingsford Smith

18h 08m

1 stop

ONT11:18Ontario

$1,454

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 26/1

13:53-06:20

1 stop21h 27m

Sydney Kingsford Smith

Sun 8/2

12:10-11:18

1 stop18h 08m

$1,451

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 26/1

13:53-06:20

1 stop21h 27m

Sydney Kingsford Smith

Sun 8/2

12:10-11:18

1 stop18h 08m

$1,452

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 26/1

13:53-06:20

1 stop21h 27m

Sydney Kingsford Smith

Sun 8/2

12:10-11:18

1 stop18h 08m

$1,454

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 26/4

18:53-06:55

1 stop19h 02m

Sydney Kingsford Smith

Sun 10/5

10:20-12:22

1 stop19h 02m

$1,457

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 28/1

13:53-09:15

1 stop24h 22m

Sydney Kingsford Smith

Mon 23/2

11:50-22:00

1 stop29h 10m

$1,466

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 7/2

18:32-09:15

1 stop19h 43m

Sydney Kingsford Smith

Wed 11/2

12:10-17:43

1 stop24h 33m

$1,470

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 28/1

13:53-09:15

1 stop24h 22m

Sydney Kingsford Smith

Wed 4/3

11:50-20:50

2 stops28h 00m

$1,472

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 26/1

05:05-06:20

2 stops30h 15m

Sydney Kingsford Smith

Mon 23/2

11:50-22:00

1 stop29h 10m

$1,473

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 31/1

18:32-09:15

1 stop19h 43m

Sydney Kingsford Smith

Sat 7/2

14:00-12:17

1 stop17h 17m

$1,475

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 7/2

05:05-09:15

2 stops33h 10m

Sydney Kingsford Smith

Wed 11/2

12:10-17:43

1 stop24h 33m

$1,476

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 Wednesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $1,329. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,954.

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 $1,458. 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 $1,932 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

Fastest flight time	19h 01m
Direct flights	None

The fastest flight from Ontario to Sydney takes 19h 01m

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 01m, 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.

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 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.