What airlines fly to Sydney?

Qantas Airways, Fiji Airways and United Airlines 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 traveling to Sydney. Keep in mind that there are 13 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 updated daily.

How many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?

There is 1 operator available for flights from Ontario Airport to Sydney Kingsford Smith Airport as of December 2025.

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$465 Cheap Flights from Ontario to Sydney in 2025/26

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Find the cheapest flights from Ontario to Sydney

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One-way

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6:39 pm - 9:15 am

ONT

SYD

19h 36m1 stop

12:10 pm - 11:18 am

SYD

ONT

18h 08m1 stop

$966United Airlines

Sun, Jan 18 - Sun, Feb 1

1:53 pm - 6:20 am

ONT

SYD

21h 27m1 stop

12:10 pm - 5:41 pm

SYD

ONT

24h 31m1 stop

$974United Airlines

Wed, Feb 11 - Wed, Feb 18

6:00 am - 7:00 am

ONT

SYD

30h 00m1 stop

12:10 pm - 5:43 pm

SYD

ONT

24h 33m1 stop

$977United Airlines

Thu, Jan 22 - Sun, Feb 1

1:53 pm - 6:20 am

ONT

SYD

21h 27m1 stop

12:10 pm - 8:50 pm

SYD

ONT

27h 40m2 stops

$979United Airlines

Wed, Feb 11 - Wed, Feb 18

1:53 pm - 6:20 am

ONT

SYD

21h 27m1 stop

2:00 pm - 12:17 pm

SYD

ONT

17h 17m1 stop

$980United Airlines

Sat, Jan 24 - Sat, Jan 31

6:00 am - 6:20 am

ONT

SYD

29h 20m2 stops

2:00 pm - 5:55 pm

SYD

ONT

22h 55m1 stop

$982United Airlines

Thu, Jan 22 - Tue, Feb 3

6:00 am - 6:55 am

ONT

SYD

31h 55m1 stop

10:20 am - 12:20 pm

SYD

ONT

19h 00m1 stop

$983United Airlines

Sat, Jun 27 - Tue, Aug 4

5:05 am - 9:15 am

ONT

SYD

33h 10m2 stops

2:00 pm - 12:17 pm

SYD

ONT

17h 17m1 stop

$985United Airlines

Sat, Jan 24 - Sat, Jan 31

6:53 pm - 6:55 am

ONT

SYD

19h 02m1 stop

10:20 am - 11:06 pm

SYD

ONT

29h 46m1 stop

$986United Airlines

Thu, Jun 25 - Thu, Jul 30

5:15 am - 9:15 am

ONT

SYD

34h 00m2 stops

11:20 am - 10:45 pm

SYD

ONT

29h 25m1 stop

$988United Airlines

Sat, Mar 14 - Mon, Mar 30

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

Jan 18

ONT6:39 pmOntario

19h 36m

1 stop

SYD9:15 amSydney Kingsford Smith

Feb 1

SYD12:10 pmSydney Kingsford Smith

18h 08m

1 stop

ONT11:18 amOntario

$966

Find similar

United Airlines

Feb 11

ONT1:53 pmOntario

21h 27m

1 stop

SYD6:20 amSydney Kingsford Smith

Feb 15

SYD12:10 pmSydney Kingsford Smith

19h 28m

1 stop

ONT12:38 pmOntario

$974

Find similar

United Airlines

Jan 19

ONT1:53 pmOntario

21h 27m

1 stop

SYD6:20 amSydney Kingsford Smith

Jan 23

SYD12:10 pmSydney Kingsford Smith

18h 08m

1 stop

ONT11:18 amOntario

$977

Find similar

Hawaiian Airlines flights from Ontario to Sydney

Our best Hawaiian Airlines deals on Ontario to Sydney flight tickets

Hawaiian Airlines

Jan 13

ONT8:13 amOntario

40h 32m

1 stop

SYD7:45 pmSydney Kingsford Smith

Jan 17

SYD9:40 pmSydney Kingsford Smith

19h 48m

1 stop

ONT10:28 pmOntario

$1,066

Find similar

Hawaiian Airlines

Jan 13

ONT8:13 amOntario

40h 32m

1 stop

SYD7:45 pmSydney Kingsford Smith

Jan 17

SYD9:40 pmSydney Kingsford Smith

19h 48m

1 stop

ONT10:28 pmOntario

$1,082

Find similar

Hawaiian Airlines

Jan 4

ONT8:00 amOntario

40h 45m

1 stop

SYD7:45 pmSydney Kingsford Smith

Jan 11

SYD9:40 pmSydney Kingsford Smith

19h 48m

1 stop

ONT10:28 pmOntario

$1,097

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 1/18

6:39 pm-9:15 am

1 stop19h 36m

Sydney Kingsford Smith

Sun 2/1

12:10 pm-11:18 am

1 stop18h 08m

$966

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 2/11

1:53 pm-6:20 am

1 stop21h 27m

Sydney Kingsford Smith

Wed 2/18

12:10 pm-5:41 pm

1 stop24h 31m

$974

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 1/22

6:00 am-7:00 am

1 stop30h 00m

Sydney Kingsford Smith

Sun 2/1

12:10 pm-5:43 pm

1 stop24h 33m

$977

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 2/11

1:53 pm-6:20 am

1 stop21h 27m

Sydney Kingsford Smith

Wed 2/18

12:10 pm-8:50 pm

2 stops27h 40m

$979

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 1/24

1:53 pm-6:20 am

1 stop21h 27m

Sydney Kingsford Smith

Sat 1/31

2:00 pm-12:17 pm

1 stop17h 17m

$980

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 1/22

6:00 am-6:20 am

2 stops29h 20m

Sydney Kingsford Smith

Tue 2/3

2:00 pm-5:55 pm

1 stop22h 55m

$982

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 6/27

6:00 am-6:55 am

1 stop31h 55m

Sydney Kingsford Smith

Tue 8/4

10:20 am-12:20 pm

1 stop19h 00m

$983

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 1/24

5:05 am-9:15 am

2 stops33h 10m

Sydney Kingsford Smith

Sat 1/31

2:00 pm-12:17 pm

1 stop17h 17m

$985

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 6/25

6:53 pm-6:55 am

1 stop19h 02m

Sydney Kingsford Smith

Thu 7/30

10:20 am-11:06 pm

1 stop29h 46m

$986

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sat 3/14

5:15 am-9:15 am

2 stops34h 00m

Sydney Kingsford Smith

Mon 3/30

11:20 am-10:45 pm

1 stop29h 25m

$988

Flights are sorted by cheapest round-trip 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?

The cheapest day to depart from Ontario to Sydney is on a Wednesday when prices can be found for as low as $993. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,055.

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 round-trip 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 02m
Direct flights	None

The fastest flight from Ontario to Sydney takes 19h 02m

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?
A flight from Ontario to Sydney Kingsford Smith will travel around 7527.4 mi. 19h 02m is a normal flight duration for this route.
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 updated daily.
How many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?
There is 1 operator available for flights from Ontario Airport to Sydney Kingsford Smith Airport as of December 2025.
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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Ontario to Sydney?
Based on momondo bookings for flights between Ontario and Sydney, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Ontario to Sydney

Compare and see reviews for airlines that fly from Ontario to Sydney with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $926	Free Cancellation	Rating 7.4 9,122 reviews		Search United Airlines flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Randwick

Coogee

Manly

Penrith

Cronulla

Lithgow

Leura

Charlestown

Terrigal

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Sydney?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Sydney. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Sydney with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Sydney from Ontario with this policy.

How can momondo help me find flights from Ontario to Sydney?

Once all potential Ontario to Sydney flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Sydney right now. Can momondo alert me if prices change?

Price alerts on flights to Sydney from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Ontario to Sydney from $465

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Sydney departing on 2/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Ontario to Sydney

What is the cheapest day to depart on your flight to Sydney?

The cheapest day to depart from Ontario to Sydney is on a Wednesday when prices can be found for as low as $993. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,055.

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

What airlines fly to Sydney?

When to book flights from Ontario to Sydney

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

Direct flights

How far is Ontario to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from Ontario Airport to Sydney Kingsford Smith Airport?

How many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?

How old do you have to be to fly from Ontario Airport to Sydney Kingsford Smith Airport?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

What is the most popular airline from Ontario to Sydney?

Best airlines flying from Ontario to Sydney

Compare and see reviews for airlines that fly from Ontario to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Sydney?

Can I find flights from Ontario to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Sydney?

I’m not ready to book a flight from Ontario to Sydney right now. Can momondo alert me if prices change?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales