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 39% 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?

Hawaiian Airlines, United Airlines, and Alaska 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.

$722 Cheap Flights from Ontario to Sydney in 2025/26

1 adult

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Find the cheapest flights from Ontario to Sydney

Round-trip

One-way

Last minute

Cheap return flights

10:09 - 19:45ONT-SYD

40h 36m1 stop

21:40 - 17:14SYD-ONT

37h 34m1 stop

$1,574Alaska Airlines

Find Deal

Tue, 30 Sep - Tue, 28 Oct

19:21 - 19:45ONT-SYD

53h 24m2 stops

21:40 - 11:19SYD-ONT

32h 39m2 stops

$1,595Alaska Airlines

Find Deal

Wed, 26 Nov - Fri, 5 Dec

16:48 - 19:45ONT-SYD

55h 57m2 stops

21:40 - 11:19SYD-ONT

32h 39m2 stops

$1,608Alaska Airlines

Find Deal

Wed, 26 Nov - Thu, 4 Dec

07:50 - 19:45ONT-SYD

40h 55m1 stop

21:40 - 20:23SYD-ONT

17h 43m1 stop

$1,614Alaska Airlines

Find Deal

Thu, 27 Nov - Thu, 4 Dec

13:53 - 06:55ONT-SYD

24h 02m1 stop

12:10 - 12:37SYD-ONT

19h 27m1 stop

$1,631United Airlines

Find Deal

Tue, 30 Sep - Wed, 12 Nov

13:15 - 06:55ONT-SYD

24h 40m2 stops

11:50 - 21:49SYD-ONT

28h 59m1 stop

$1,637United Airlines

Find Deal

Tue, 30 Sep - Wed, 12 Nov

13:53 - 06:55ONT-SYD

24h 02m1 stop

11:20 - 12:51SYD-ONT

43h 31m2 stops

$1,659United Airlines

Find Deal

Mon, 29 Sep - Mon, 20 Oct

10:09 - 18:45ONT-SYD

39h 36m1 stop

21:40 - 17:14SYD-ONT

37h 34m1 stop

$1,724Hawaiian Airlines

Find Deal

Fri, 3 Oct - Sun, 26 Oct

12:13 - 19:45ONT-SYD

36h 32m2 stops

21:40 - 21:55SYD-ONT

19h 15m1 stop

$1,725Hawaiian Airlines

Find Deal

Wed, 3 Dec - Thu, 15 Jan

09:45 - 19:45ONT-SYD

40h 00m1 stop

21:40 - 12:05SYD-ONT

32h 25m2 stops

$1,739Hawaiian Airlines

Find Deal

Sun, 26 Oct - Sat, 1 Nov

Hawaiian Airlines flights from Ontario to Sydney

Our best Hawaiian Airlines deals on Ontario to Sydney flight tickets

Hawaiian Airlines

3 Oct

ONT10:09Ontario

39h 36m

1 stop

SYD18:45Sydney Kingsford Smith

26 Oct

SYD21:40Sydney Kingsford Smith

37h 34m

1 stop

ONT17:14Ontario

$1,724

Find similar

Hawaiian Airlines

3 Dec

ONT12:13Ontario

36h 32m

2 stops

SYD19:45Sydney Kingsford Smith

15 Jan

SYD21:40Sydney Kingsford Smith

19h 15m

1 stop

ONT21:55Ontario

$1,725

Find similar

Hawaiian Airlines

26 Oct

ONT09:45Ontario

40h 00m

1 stop

SYD19:45Sydney Kingsford Smith

1 Nov

SYD21:40Sydney Kingsford Smith

32h 25m

2 stops

ONT12:05Ontario

$1,739

Find similar

Alaska Airlines flights from Ontario to Sydney

Our best Alaska Airlines deals on Ontario to Sydney flight tickets

Alaska Airlines

30 Sept

ONT10:09Ontario

40h 36m

1 stop

SYD19:45Sydney Kingsford Smith

28 Oct

SYD21:40Sydney Kingsford Smith

37h 34m

1 stop

ONT17:14Ontario

$1,574

Find similar

Alaska Airlines

26 Nov

ONT19:21Ontario

53h 24m

2 stops

SYD19:45Sydney Kingsford Smith

5 Dec

SYD21:40Sydney Kingsford Smith

32h 39m

2 stops

ONT11:19Ontario

$1,595

Find similar

Alaska Airlines

26 Nov

ONT16:48Ontario

55h 57m

2 stops

SYD19:45Sydney Kingsford Smith

4 Dec

SYD21:40Sydney Kingsford Smith

32h 39m

2 stops

ONT11:19Ontario

$1,608

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 30/9

10:09-19:45

1 stop40h 36m

Sydney Kingsford Smith

Tue 28/10

21:40-17:14

1 stop37h 34m

$1,574

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 26/11

19:21-19:45

2 stops53h 24m

Sydney Kingsford Smith

Fri 5/12

21:40-11:19

2 stops32h 39m

$1,595

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 26/11

16:48-19:45

2 stops55h 57m

Sydney Kingsford Smith

Thu 4/12

21:40-11:19

2 stops32h 39m

$1,608

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 27/11

07:50-19:45

1 stop40h 55m

Sydney Kingsford Smith

Thu 4/12

21:40-20:23

1 stop17h 43m

$1,614

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 30/9

13:53-06:55

1 stop24h 02m

Sydney Kingsford Smith

Wed 12/11

12:10-12:37

1 stop19h 27m

$1,631

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 30/9

13:15-06:55

2 stops24h 40m

Sydney Kingsford Smith

Wed 12/11

11:50-21:49

1 stop28h 59m

$1,637

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 29/9

13:53-06:55

1 stop24h 02m

Sydney Kingsford Smith

Mon 20/10

11:20-12:51

2 stops43h 31m

$1,659

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 3/10

10:09-18:45

1 stop39h 36m

Sydney Kingsford Smith

Sun 26/10

21:40-17:14

1 stop37h 34m

$1,724

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 3/12

12:13-19:45

2 stops36h 32m

Sydney Kingsford Smith

Thu 15/1

21:40-21:55

1 stop19h 15m

$1,725

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 26/10

09:45-19:45

1 stop40h 00m

Sydney Kingsford Smith

Sat 1/11

21:40-12:05

2 stops32h 25m

$1,739

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 $1,433. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,944.

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 $1,450. 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 $1,922 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 17h 39m, 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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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.