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?

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 44% 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.

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 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.

$571 Cheap Flights from Ontario to Sydney in 2026

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Find the cheapest flights from Ontario to Sydney

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One-way

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8:32 am - 6:50 pm

ONT

SYD

40h 18m

1 stop

8:45 pm - 9:10 pm

SYD

ONT

17h 25m

1 stop

$1,027Multiple Airlines

Thu, Apr 2 - Fri, Apr 24

7:50 am - 6:50 pm

ONT

SYD

18h 00m

1 stop

8:45 pm - 9:28 pm

SYD

ONT

17h 43m

1 stop

$1,049Multiple Airlines

Wed, Jun 24 - Sun, Sep 13

8:41 am - 7:45 pm

ONT

SYD

40h 04m

1 stop

9:40 pm - 10:15 pm

SYD

ONT

19h 35m

1 stop

$1,066Multiple Airlines

Fri, Feb 27 - Thu, Mar 5

1:53 pm - 6:20 am

ONT

SYD

21h 27m

1 stop

12:10 pm - 12:38 pm

SYD

ONT

19h 28m

1 stop

$1,079United Airlines

Sun, Feb 8 - Sun, Feb 22

10:37 am - 6:55 am

ONT

SYD

27h 18m

1 stop

10:20 am - 9:41 am

SYD

ONT

16h 21m

1 stop

$1,080United Airlines

Mon, May 4 - Tue, May 12

6:37 pm - 9:15 am

ONT

SYD

19h 38m

1 stop

2:00 pm - 12:38 pm

SYD

ONT

17h 38m

1 stop

$1,081United Airlines

Wed, Feb 18 - Tue, Mar 3

8:00 am - 7:00 am

ONT

SYD

28h 00m

1 stop

12:10 pm - 12:38 pm

SYD

ONT

19h 28m

1 stop

$1,082United Airlines

Tue, Feb 24 - Mon, Mar 2

8:41 am - 7:45 pm

ONT

SYD

40h 04m

1 stop

8:45 pm - 10:20 pm

SYD

ONT

18h 35m

1 stop

$1,083Multiple Airlines

Thu, Feb 19 - Fri, Jul 24

1:40 pm - 6:55 am

ONT

SYD

24h 15m

2 stops

10:20 am - 9:41 am

SYD

ONT

16h 21m

1 stop

$1,084United Airlines

Mon, May 4 - Tue, May 12

1:40 pm - 9:15 am

ONT

SYD

25h 35m

1 stop

11:20 am - 10:45 pm

SYD

ONT

29h 25m

1 stop

$1,086United Airlines

Sun, Mar 8 - Mon, Mar 30

American Airlines flights from Ontario to Sydney

Our best American Airlines deals on Ontario to Sydney flight tickets

American Airlines

Jul 11

ONT2:22 pmOntario

23h 33m

1 stop

SYD6:55 amSydney Kingsford Smith

Jul 14

SYD12:00 pmSydney Kingsford Smith

28h 59m

1 stop

ONT11:59 pmOntario

$1,241

American Airlines

Jul 11

ONT1:10 pmOntario

25h 20m

2 stops

SYD7:30 amSydney Kingsford Smith

Jul 14

SYD9:10 amSydney Kingsford Smith

29h 41m

2 stops

ONT9:51 pmOntario

$1,245

American Airlines

Jul 1

ONT1:10 pmOntario

25h 20m

2 stops

SYD7:30 amSydney Kingsford Smith

Jul 17

SYD9:10 amSydney Kingsford Smith

26h 02m

2 stops

ONT6:12 pmOntario

$1,246

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

Feb 1

ONT1:53 pmOntario

21h 27m

1 stop

SYD6:20 amSydney Kingsford Smith

Feb 15

SYD2:00 pmSydney Kingsford Smith

17h 38m

1 stop

ONT12:38 pmOntario

$1,073

United Airlines

Feb 1

ONT6:39 pmOntario

19h 36m

1 stop

SYD9:15 amSydney Kingsford Smith

Feb 15

SYD12:10 pmSydney Kingsford Smith

19h 28m

1 stop

ONT12:38 pmOntario

$1,074

United Airlines

Feb 1

ONT1:53 pmOntario

21h 27m

1 stop

SYD6:20 amSydney Kingsford Smith

Feb 15

SYD2:00 pmSydney Kingsford Smith

17h 38m

1 stop

ONT12:38 pmOntario

$1,076

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 4/2

8:32 am-6:50 pm

1 stop40h 18m

Sydney Kingsford Smith

Fri 4/24

8:45 pm-9:10 pm

1 stop17h 25m

$1,027

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 6/24

7:50 am-6:50 pm

1 stop18h 00m

Sydney Kingsford Smith

Sun 9/13

8:45 pm-9:28 pm

1 stop17h 43m

$1,049

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 2/27

8:41 am-7:45 pm

1 stop40h 04m

Sydney Kingsford Smith

Thu 3/5

9:40 pm-10:15 pm

1 stop19h 35m

$1,066

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 2/8

1:53 pm-6:20 am

1 stop21h 27m

Sydney Kingsford Smith

Sun 2/22

12:10 pm-12:38 pm

1 stop19h 28m

$1,079

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 5/4

10:37 am-6:55 am

1 stop27h 18m

Sydney Kingsford Smith

Tue 5/12

10:20 am-9:41 am

1 stop16h 21m

$1,080

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 2/18

6:37 pm-9:15 am

1 stop19h 38m

Sydney Kingsford Smith

Tue 3/3

2:00 pm-12:38 pm

1 stop17h 38m

$1,081

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 2/24

8:00 am-7:00 am

1 stop28h 00m

Sydney Kingsford Smith

Mon 3/2

12:10 pm-12:38 pm

1 stop19h 28m

$1,082

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 2/19

8:41 am-7:45 pm

1 stop40h 04m

Sydney Kingsford Smith

Fri 7/24

8:45 pm-10:20 pm

1 stop18h 35m

$1,083

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 5/4

1:40 pm-6:55 am

2 stops24h 15m

Sydney Kingsford Smith

Tue 5/12

10:20 am-9:41 am

1 stop16h 21m

$1,084

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 3/8

1:40 pm-9:15 am

1 stop25h 35m

Sydney Kingsford Smith

Mon 3/30

11:20 am-10:45 pm

1 stop29h 25m

$1,086

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 Monday when prices can be found for as low as $984. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,057.

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	18h 00m
Direct flights	None

The fastest flight from Ontario to Sydney takes 18h 00m

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. 18h 00m 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 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.

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Bondi Beach

Katoomba

Wollongong

Randwick

Penrith

Coogee

Manly

Lithgow

Leura

Cronulla

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.