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 51% 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?

American Airlines and United 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.

$716 Cheap Flights from Ontario to Sydney in 2026

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.

07:50 - 18:50

ONT

SYD

18h 00m

1 stop

20:45 - 22:20

SYD

ONT

18h 35m

1 stop

$1,492Multiple Airlines

Fri, 7 Aug - Fri, 14 Aug

08:32 - 18:50

ONT

SYD

40h 18m

1 stop

20:45 - 21:10

SYD

ONT

17h 25m

1 stop

$1,506Multiple Airlines

Wed, 1 Apr - Sun, 26 Apr

07:50 - 18:50

ONT

SYD

18h 00m

1 stop

20:45 - 21:28

SYD

ONT

17h 43m

1 stop

$1,511Multiple Airlines

Mon, 10 Aug - Thu, 27 Aug

07:50 - 18:50

ONT

SYD

18h 00m

1 stop

20:45 - 21:28

SYD

ONT

17h 43m

1 stop

$1,513Multiple Airlines

Mon, 3 Aug - Fri, 21 Aug

08:41 - 19:45

ONT

SYD

40h 04m

1 stop

21:40 - 20:55

SYD

ONT

17h 15m

1 stop

$1,514Multiple Airlines

Wed, 4 Mar - Tue, 10 Mar

08:41 - 19:45

ONT

SYD

40h 04m

1 stop

21:40 - 20:55

SYD

ONT

17h 15m

1 stop

$1,516Multiple Airlines

Thu, 5 Mar - Tue, 10 Mar

18:37 - 06:20

ONT

SYD

17h 43m

1 stop

10:20 - 12:20

SYD

ONT

19h 00m

1 stop

$1,521United Airlines

Wed, 18 Mar - Wed, 8 Apr

13:50 - 06:20

ONT

SYD

22h 30m

2 stops

10:20 - 12:20

SYD

ONT

19h 00m

1 stop

$1,527United Airlines

Wed, 18 Mar - Wed, 8 Apr

07:50 - 18:50

ONT

SYD

18h 00m

1 stop

20:45 - 22:20

SYD

ONT

18h 35m

1 stop

$1,528Multiple Airlines

Sat, 1 Aug - Sat, 8 Aug

09:40 - 18:50

ONT

SYD

40h 10m

1 stop

20:45 - 22:17

SYD

ONT

18h 32m

1 stop

$1,535Multiple Airlines

Tue, 19 May - Tue, 26 May

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

18 Mar

ONT18:37Ontario

17h 43m

1 stop

SYD06:20Sydney Kingsford Smith

8 Apr

SYD10:20Sydney Kingsford Smith

19h 00m

1 stop

ONT12:20Ontario

$1,521

United Airlines

18 Mar

ONT13:50Ontario

22h 30m

2 stops

SYD06:20Sydney Kingsford Smith

8 Apr

SYD10:20Sydney Kingsford Smith

19h 00m

1 stop

ONT12:20Ontario

$1,527

United Airlines

16 Mar

ONT13:40Ontario

25h 35m

1 stop

SYD09:15Sydney Kingsford Smith

18 Mar

SYD13:00Sydney Kingsford Smith

41h 18m

2 stops

ONT12:18Ontario

$1,551

Hawaiian Airlines flights from Ontario to Sydney

Our best Hawaiian Airlines deals on Ontario to Sydney flight tickets

Hawaiian Airlines

22 Feb

ONT08:41Ontario

40h 04m

1 stop

SYD19:45Sydney Kingsford Smith

8 Mar

SYD21:40Sydney Kingsford Smith

17h 15m

1 stop

ONT20:55Ontario

$1,441

Hawaiian Airlines

22 Feb

ONT08:41Ontario

40h 04m

1 stop

SYD19:45Sydney Kingsford Smith

8 Mar

SYD21:40Sydney Kingsford Smith

17h 15m

1 stop

ONT20:55Ontario

$1,462

Hawaiian Airlines

22 Feb

ONT08:41Ontario

40h 04m

1 stop

SYD19:45Sydney Kingsford Smith

8 Mar

SYD21:40Sydney Kingsford Smith

17h 15m

1 stop

ONT20:55Ontario

$1,466

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 7/8

07:50-18:50

1 stop18h 00m

Sydney Kingsford Smith

Fri 14/8

20:45-22:20

1 stop18h 35m

$1,492

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 1/4

08:32-18:50

1 stop40h 18m

Sydney Kingsford Smith

Sun 26/4

20:45-21:10

1 stop17h 25m

$1,506

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 10/8

07:50-18:50

1 stop18h 00m

Sydney Kingsford Smith

Thu 27/8

20:45-21:28

1 stop17h 43m

$1,511

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 3/8

07:50-18:50

1 stop18h 00m

Sydney Kingsford Smith

Fri 21/8

20:45-21:28

1 stop17h 43m

$1,513

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 4/3

08:41-19:45

1 stop40h 04m

Sydney Kingsford Smith

Tue 10/3

21:40-20:55

1 stop17h 15m

$1,514

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 5/3

08:41-19:45

1 stop40h 04m

Sydney Kingsford Smith

Tue 10/3

21:40-20:55

1 stop17h 15m

$1,516

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 18/3

18:37-06:20

1 stop17h 43m

Sydney Kingsford Smith

Wed 8/4

10:20-12:20

1 stop19h 00m

$1,521

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 18/3

13:50-06:20

2 stops22h 30m

Sydney Kingsford Smith

Wed 8/4

10:20-12:20

1 stop19h 00m

$1,527

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 1/8

07:50-18:50

1 stop18h 00m

Sydney Kingsford Smith

Sat 8/8

20:45-22:20

1 stop18h 35m

$1,528

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 19/5

09:40-18:50

1 stop40h 10m

Sydney Kingsford Smith

Tue 26/5

20:45-22:17

1 stop18h 32m

$1,535

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 $1,275. The most expensive day to fly to Sydney is Thursday, with ticket prices averaging around $1,764.

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.

Parramatta

Wollongong

Terrigal

Penrith

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.