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 53% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 11 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 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.

$623 Cheap Flights from Ontario to Sydney in 2026/27

Find the cheapest flights from Ontario to Sydney

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One-way

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4:03 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

22h 17m1 stop San Francisco

11:50 am - 9:47 amSYD Sydney Kingsford Smith-ONT Ontario

16h 57m1 stop San Francisco

$1,117United Airlines

Tue, Feb 23 - Wed, Mar 3

1:35 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

24h 45m1 stop San Francisco

11:50 am - 3:33 pmSYD Sydney Kingsford Smith-ONT Ontario

22h 43m1 stop San Francisco

$1,117United Airlines

Sun, Nov 15 - Tue, Nov 24

4:17 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,117United Airlines

Sun, Nov 8 - Tue, Nov 24

1:35 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

24h 45m1 stop San Francisco

11:50 am - 3:33 pmSYD Sydney Kingsford Smith-ONT Ontario

22h 43m1 stop San Francisco

$1,117United Airlines

Wed, Nov 18 - Wed, Nov 25

6:00 am - 7:00 amONT Ontario-SYD Sydney Kingsford Smith

30h 00m1 stop Houston George Bush Intcntl

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,117United Airlines

Wed, Nov 4 - Wed, Nov 11

6:35 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

19h 45m1 stop San Francisco

11:50 am - 12:20 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 30m1 stop San Francisco

$1,117United Airlines

Wed, Feb 24 - Wed, Mar 17

4:17 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,117United Airlines

Tue, Nov 10 - Tue, Nov 24

4:17 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,117United Airlines

Sun, Nov 1 - Wed, Nov 11

3:59 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

22h 21m1 stop San Francisco

11:50 am - 9:47 amSYD Sydney Kingsford Smith-ONT Ontario

16h 57m1 stop San Francisco

$1,117United Airlines

Mon, Feb 1 - Tue, Feb 16

2:00 pm - 6:20 amONT Ontario-SYD Sydney Kingsford Smith

21h 20m1 stop San Francisco

11:50 am - 9:47 amSYD Sydney Kingsford Smith-ONT Ontario

16h 57m1 stop San Francisco

$1,117United Airlines

Tue, Feb 2 - Tue, Feb 16

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 7:00 amONT Ontario-SYD Sydney Kingsford Smith

31h 00m1 stop Houston George Bush Intcntl

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,117United Airlines

Mon, Oct 26 - Mon, Nov 2

6:00 am - 7:00 amONT Ontario-SYD Sydney Kingsford Smith

31h 00m1 stop Houston George Bush Intcntl

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,118United Airlines

Mon, Oct 26 - Mon, Nov 2

4:17 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

23h 03m1 stop San Francisco

11:50 am - 8:51 pmSYD Sydney Kingsford Smith-ONT Ontario

28h 01m2 stops San Francisco Denver Intl

$1,122United Airlines

Mon, Oct 26 - Mon, Nov 2

1:32 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

25h 48m2 stops Denver Intl San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,123United Airlines

Mon, Oct 26 - Mon, Nov 2

7:00 am - 7:45 pmONT Ontario-SYD Sydney Kingsford Smith

18h 45m1 stop Honolulu

9:40 pm - 10:43 pmSYD Sydney Kingsford Smith-ONT Ontario

20h 03m1 stop Honolulu

$1,123Multiple Airlines

Wed, Oct 28 - Sun, Nov 15

1:35 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

25h 45m1 stop San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,133Air New Zealand

Wed, Oct 28 - Wed, Nov 4

8:03 am - 7:00 amONT Ontario-SYD Sydney Kingsford Smith

28h 57m2 stops San Francisco Houston George Bush Intcntl

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 39m1 stop San Francisco

$1,218United Airlines

Sat, Oct 24 - Sat, Oct 31

4:03 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

23h 17m1 stop San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 39m1 stop San Francisco

$1,218United Airlines

Sat, Oct 24 - Sat, Oct 31

6:32 pm - 7:55 amONT Ontario-SYD Sydney Kingsford Smith

19h 23m1 stop San Francisco

11:50 am - 12:29 pmSYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

$1,218United Airlines

Fri, Oct 23 - Thu, Nov 19

7:00 am - 7:45 pmONT Ontario-SYD Sydney Kingsford Smith

18h 45m1 stop Honolulu

9:40 pm - 9:29 pmSYD Sydney Kingsford Smith-ONT Ontario

17h 49m1 stop Honolulu

$1,219Multiple Airlines

Sat, Oct 24 - Sat, Oct 31

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Air New Zealand flights from Ontario to Sydney

Our best Air New Zealand deals on Ontario to Sydney flight tickets

Air New Zealand

Oct 25

ONT1:35 pmOntario

25h 45m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 9

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,128

Air New Zealand

Oct 28

ONT1:35 pmOntario

25h 45m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 4

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,133

Air New Zealand

Nov 29

ONT9:25 amOntario

28h 55m

1 stop

SYD9:20 amSydney Kingsford Smith

Dec 4

SYD11:50 amSydney Kingsford Smith

22h 45m

1 stop

ONT3:35 pmOntario

$1,184

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

Nov 1

ONT4:17 pmOntario

22h 03m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 11

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,117

United Airlines

Nov 9

ONT6:37 pmOntario

19h 43m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 23

SYD11:50 amSydney Kingsford Smith

25h 06m

1 stop

ONT5:56 pmOntario

$1,118

United Airlines

Mar 17

ONT4:03 pmOntario

20h 17m

1 stop

SYD6:20 amSydney Kingsford Smith

Mar 31

SYD11:20 amSydney Kingsford Smith

19h 00m

1 stop

ONT12:20 pmOntario

$1,119

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 2/23

4:03 pm-9:20 am

1 stop22h 17m

Sydney Kingsford Smith

Wed 3/3

11:50 am-9:47 am

1 stop16h 57m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 11/15

1:35 pm-9:20 am

1 stop24h 45m

Sydney Kingsford Smith

Tue 11/24

11:50 am-3:33 pm

1 stop22h 43m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 11/8

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Tue 11/24

11:50 am-12:29 pm

1 stop19h 39m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 11/18

1:35 pm-9:20 am

1 stop24h 45m

Sydney Kingsford Smith

Wed 11/25

11:50 am-3:33 pm

1 stop22h 43m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 11/4

6:00 am-7:00 am

1 stop30h 00m

Sydney Kingsford Smith

Wed 11/11

11:50 am-12:29 pm

1 stop19h 39m

$1,117

Quickest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 2/24

6:35 pm-9:20 am

1 stop19h 45m

Sydney Kingsford Smith

Wed 3/17

11:50 am-12:20 pm

1 stop18h 30m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 11/10

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Tue 11/24

11:50 am-12:29 pm

1 stop19h 39m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 11/1

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Wed 11/11

11:50 am-12:29 pm

1 stop19h 39m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 2/1

3:59 pm-9:20 am

1 stop22h 21m

Sydney Kingsford Smith

Tue 2/16

11:50 am-9:47 am

1 stop16h 57m

$1,117

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 2/2

2:00 pm-6:20 am

1 stop21h 20m

Sydney Kingsford Smith

Tue 2/16

11:50 am-9:47 am

1 stop16h 57m

$1,117

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 Tuesday when prices can be found for as low as $992. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,076.

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

Best Price Found	$623
Fastest flight time	19h 02m
Direct flights	None

The best one-way flight to Sydney from Ontario in the past 72 hours is $623. The best round-trip flight deal from Ontario to Sydney found on momondo in the last 72 hours is $1,117.

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.

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Frequently asked questions about flying from Ontario to Sydney

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 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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Manly

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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 $623

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 12/30. 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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Air New Zealand flights from Ontario to Sydney

Our best Air New Zealand deals on Ontario to Sydney flight tickets

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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?

What is the cheapest airline that flies 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

Best Price Found

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Frequently asked questions about flying from Ontario to Sydney

Traveling to a place near Sydney?

Why use momondo?

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

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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