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 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.

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.

$561 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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Enter your travel dates to find the best prices.

6:37 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

19h 43m1 stop San Francisco

1:20 pm - 3:18 pmSYD Sydney Kingsford Smith-ONT Ontario

20h 58m1 stop San Francisco

$1,123Air New Zealand

Mon, Jan 25 - Mon, Feb 1

7:40 am - 8:35 amONT Ontario-SYD Sydney Kingsford Smith

29h 55m2 stops San Francisco Auckland Intl

11:50 am - 8:19 pmSYD Sydney Kingsford Smith-ONT Ontario

27h 29m2 stops Auckland Intl San Francisco

$1,158Air New Zealand

Sun, Feb 28 - Sun, Mar 7

6:27 pm - 6:20 amONT Ontario-SYD Sydney Kingsford Smith

40h 53m1 stop San Francisco

1:20 pm - 6:03 pmSYD Sydney Kingsford Smith-ONT Ontario

23h 43m1 stop San Francisco

$1,174Air New Zealand

Wed, Dec 23 - Tue, Jan 12

9:00 am - 7:45 pmONT Ontario-SYD Sydney Kingsford Smith

39h 45m1 stop Honolulu

8:45 pm - 9:28 pmSYD Sydney Kingsford Smith-ONT Ontario

17h 43m1 stop Honolulu

$1,178Multiple Airlines

Wed, Mar 3 - Tue, May 4

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

17h 45m1 stop Honolulu

9:40 pm - 9:28 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 48m1 stop Honolulu

$1,179Multiple Airlines

Mon, Feb 1 - Sun, Feb 28

6:37 pm - 8:35 amONT Ontario-SYD Sydney Kingsford Smith

42h 58m2 stops San Francisco Auckland Intl

7:30 am - 3:15 pmSYD Sydney Kingsford Smith-ONT Ontario

26h 45m2 stops Auckland Intl San Francisco

$1,183Air New Zealand

Sun, Jan 24 - Tue, Mar 2

4:03 pm - 8:45 amONT Ontario-SYD Sydney Kingsford Smith

22h 42m2 stops San Francisco Auckland Intl

11:55 am - 5:47 pmSYD Sydney Kingsford Smith-ONT Ontario

22h 52m2 stops Auckland Intl San Francisco

$1,186Air New Zealand

Tue, Mar 30 - Sun, Apr 25

4:17 pm - 8:35 amONT Ontario-SYD Sydney Kingsford Smith

21h 18m2 stops San Francisco Auckland Intl

9:55 am - 6:03 pmSYD Sydney Kingsford Smith-ONT Ontario

27h 08m2 stops Auckland Intl San Francisco

$1,187Air New Zealand

Mon, Dec 7 - Tue, Jan 19

6:00 am - 8:45 amONT Ontario-SYD Sydney Kingsford Smith

33h 45m2 stops San Francisco Auckland Intl

11:55 am - 5:47 pmSYD Sydney Kingsford Smith-ONT Ontario

22h 52m2 stops Auckland Intl San Francisco

$1,193Air New Zealand

Mon, Apr 19 - Mon, Apr 26

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

24h 45m1 stop San Francisco

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

19h 39m1 stop San Francisco

$1,200Air New Zealand

Sun, Nov 15 - Mon, Nov 23

Cheap last minute flights

Enter your travel dates to find the best prices.

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

24h 45m1 stop San Francisco

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

19h 39m1 stop San Francisco

$1,150Air New Zealand

Wed, Nov 4 - Sat, Nov 14

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

$1,173United Airlines

Thu, Nov 5 - Wed, Nov 18

6:37 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

19h 43m1 stop San Francisco

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

19h 39m1 stop San Francisco

$1,174Lufthansa

Thu, Nov 5 - Wed, Nov 18

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

24h 45m1 stop San Francisco

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

19h 39m1 stop San Francisco

$1,185Lufthansa

Thu, Nov 5 - Wed, Nov 18

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

$1,188Lufthansa

Thu, Nov 5 - Wed, Nov 18

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

$1,189Lufthansa

Thu, Nov 5 - Wed, Nov 18

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

$1,200Air New Zealand

Wed, Nov 4 - Wed, Nov 18

6:37 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

19h 43m1 stop San Francisco

11:50 am - 6:01 pmSYD Sydney Kingsford Smith-ONT Ontario

25h 11m1 stop San Francisco

$1,205Lufthansa

Thu, Nov 5 - Wed, Nov 18

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

22h 03m1 stop San Francisco

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

22h 43m1 stop San Francisco

$1,228United Airlines

Wed, Nov 4 - Wed, Nov 11

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

30h 00m1 stop Houston George Bush Intcntl

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

28h 01m2 stops San Francisco Denver Intl

$1,233United Airlines

Mon, Nov 9 - Mon, Nov 16

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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

Jan 25

ONT6:37 pmOntario

19h 43m

1 stop

SYD9:20 amSydney Kingsford Smith

Feb 1

SYD1:20 pmSydney Kingsford Smith

20h 58m

1 stop

ONT3:18 pmOntario

$1,123

Air New Zealand

Nov 4

ONT1:35 pmOntario

24h 45m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 14

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,150

Air New Zealand

Feb 28

ONT7:40 amOntario

29h 55m

2 stops

SYD8:35 amSydney Kingsford Smith

Mar 7

SYD11:50 amSydney Kingsford Smith

27h 29m

2 stops

ONT8:19 pmOntario

$1,158

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

Nov 5

ONT4:17 pmOntario

22h 03m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 18

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,173

United Airlines

Mar 15

ONT4:03 pmOntario

23h 17m

1 stop

SYD9:20 amSydney Kingsford Smith

Mar 24

SYD11:50 amSydney Kingsford Smith

18h 30m

1 stop

ONT12:20 pmOntario

$1,228

United Airlines

Mar 31

ONT5:00 amOntario

32h 55m

2 stops

SYD7:55 amSydney Kingsford Smith

Apr 14

SYD10:20 amSydney Kingsford Smith

24h 27m

1 stop

ONT5:47 pmOntario

$1,233

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 1/25

6:37 pm-9:20 am

1 stop19h 43m

Sydney Kingsford Smith

Mon 2/1

1:20 pm-3:18 pm

1 stop20h 58m

$1,123

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 2/28

7:40 am-8:35 am

2 stops29h 55m

Sydney Kingsford Smith

Sun 3/7

11:50 am-8:19 pm

2 stops27h 29m

$1,158

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 12/23

6:27 pm-6:20 am

1 stop40h 53m

Sydney Kingsford Smith

Tue 1/12

1:20 pm-6:03 pm

1 stop23h 43m

$1,174

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 3/3

9:00 am-7:45 pm

1 stop39h 45m

Sydney Kingsford Smith

Tue 5/4

8:45 pm-9:28 pm

1 stop17h 43m

$1,178

Quickest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 2/1

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Sun 2/28

9:40 pm-9:28 pm

1 stop18h 48m

$1,179

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 1/24

6:37 pm-8:35 am

2 stops42h 58m

Sydney Kingsford Smith

Tue 3/2

7:30 am-3:15 pm

2 stops26h 45m

$1,183

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 3/30

4:03 pm-8:45 am

2 stops22h 42m

Sydney Kingsford Smith

Sun 4/25

11:55 am-5:47 pm

2 stops22h 52m

$1,186

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 12/7

4:17 pm-8:35 am

2 stops21h 18m

Sydney Kingsford Smith

Tue 1/19

9:55 am-6:03 pm

2 stops27h 08m

$1,187

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 4/19

6:00 am-8:45 am

2 stops33h 45m

Sydney Kingsford Smith

Mon 4/26

11:55 am-5:47 pm

2 stops22h 52m

$1,193

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 11/15

1:35 pm-9:20 am

1 stop24h 45m

Sydney Kingsford Smith

Mon 11/23

11:50 am-12:29 pm

1 stop19h 39m

$1,200

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 $998. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,079.

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	$561
Fastest flight time	19h 02m
Direct flights	None

The best one-way flight to Sydney from Ontario in the past 72 hours is $561. The best round-trip flight deal from Ontario to Sydney found on momondo in the last 72 hours is $1,123.

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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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 $561

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 11/10. 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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Direct flights

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.

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Fly your favorite airline to Sydney

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

Cabin classes currently available on flights to Sydney

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

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