What is the cheapest airline that flies from Ontario to Sydney Kingsford Smith?

United Airlines and Lufthansa are the most popular carriers 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 12 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.

$551 Cheap Flights from Ontario to Sydney in 2026/27

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9:52 am - 6:50 amONT Ontario-SYD Sydney Kingsford Smith

27h 58m2 stops Salt Lake City Los Angeles

9:15 am - 11:47 pmSYD Sydney Kingsford Smith-ONT Ontario

31h 32m2 stops Los Angeles Salt Lake City

$1,055Delta

Sun, Sep 27 - Wed, Sep 30

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

$1,084United Airlines

Sun, Nov 8 - Mon, Nov 16

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

23h 03m1 stop San Francisco

11:50 am - 5:56 pmSYD Sydney Kingsford Smith-ONT Ontario

25h 06m1 stop San Francisco

$1,094United Airlines

Wed, Oct 28 - Mon, Nov 23

6:53 pm - 9:20 amONT Ontario-SYD Sydney Kingsford Smith

20h 27m1 stop San Francisco

10:20 am - 3:27 pmSYD Sydney Kingsford Smith-ONT Ontario

22h 07m1 stop San Francisco

$1,094United Airlines

Tue, Mar 16 - Wed, Apr 7

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

$1,094United Airlines

Wed, Nov 18 - Mon, Nov 23

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

$1,094United Airlines

Wed, Nov 11 - Wed, Nov 18

1:52 pm - 6:55 amONT Ontario-SYD Sydney Kingsford Smith

24h 03m1 stop San Francisco

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

19h 39m1 stop San Francisco

$1,094United Airlines

Tue, Sep 29 - Tue, Nov 24

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

22h 03m1 stop San Francisco

11:50 am - 9:38 amSYD Sydney Kingsford Smith-ONT Ontario

16h 48m1 stop San Francisco

$1,094United Airlines

Tue, Nov 17 - Tue, Dec 15

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

19h 43m1 stop San Francisco

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

16h 57m1 stop San Francisco

$1,094United Airlines

Tue, Nov 24 - Mon, Jan 25

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

22h 03m1 stop San Francisco

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

16h 57m1 stop San Francisco

$1,094United Airlines

Wed, Nov 4 - Wed, Feb 3

Cheap last minute flights

Enter your travel dates to find the best prices.

1:04 pm - 6:50 amONT Ontario-SYD Sydney Kingsford Smith

24h 46m2 stops Salt Lake City Los Angeles

9:15 am - 11:47 pmSYD Sydney Kingsford Smith-ONT Ontario

31h 32m2 stops Los Angeles Salt Lake City

$1,056Delta

Sun, Sep 20 - Wed, Sep 23

7:13 pm - 6:55 amONT Ontario-SYD Sydney Kingsford Smith

18h 42m1 stop San Francisco

11:20 am - 12:18 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

$1,083United Airlines

Sun, Sep 20 - Mon, Oct 5

7:13 pm - 6:55 amONT Ontario-SYD Sydney Kingsford Smith

18h 42m1 stop San Francisco

11:20 am - 12:18 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

$1,084United Airlines

Sun, Sep 20 - Mon, Oct 5

7:13 pm - 6:55 amONT Ontario-SYD Sydney Kingsford Smith

18h 42m1 stop San Francisco

11:20 am - 12:18 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

$1,085United Airlines

Sun, Sep 20 - Mon, Oct 5

7:59 pm - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

29h 51m2 stops Seattle/Tacoma Intl Honolulu

8:45 pm - 10:10 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 25m1 stop Honolulu

$1,514Multiple Airlines

Fri, Sep 18 - Thu, Oct 1

7:59 pm - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

29h 51m2 stops Seattle/Tacoma Intl Honolulu

8:45 pm - 5:18 pmSYD Sydney Kingsford Smith-ONT Ontario

37h 33m2 stops Honolulu Portland

$1,841Multiple Airlines

Fri, Sep 18 - Thu, Oct 1

3:14 pm - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

34h 36m2 stops Seattle/Tacoma Intl Honolulu

8:45 pm - 5:18 pmSYD Sydney Kingsford Smith-ONT Ontario

37h 33m2 stops Honolulu Portland

$1,880Multiple Airlines

Fri, Sep 18 - Thu, Oct 1

3:14 pm - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

34h 36m2 stops Seattle/Tacoma Intl Honolulu

8:45 pm - 2:16 pmSYD Sydney Kingsford Smith-ONT Ontario

34h 31m2 stops Honolulu Seattle/Tacoma Intl

$2,121Multiple Airlines

Fri, Sep 18 - Sun, Sep 27

7:12 am - 7:30 amONT Ontario-SYD Sydney Kingsford Smith

31h 18m2 stops Portland Los Angeles

5:50 pm - 9:51 amSYD Sydney Kingsford Smith-ONT Ontario

33h 01m3 stops Los Angeles Seattle/Tacoma Intl Portland

$2,317Alaska Airlines

Sun, Sep 20 - Wed, Sep 23

12:10 am - 10:45 amONT Ontario-SYD Sydney Kingsford Smith

41h 35m1 stop Taipei City Taiwan Taoyuan Intl

10:10 pm - 6:00 pmSYD Sydney Kingsford Smith-ONT Ontario

36h 50m1 stop Taipei City Taiwan Taoyuan Intl

$2,385China Airlines

Fri, Sep 18 - Mon, Sep 21

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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

Feb 16

ONT1:33 pmOntario

24h 02m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 24

SYD7:30 amSydney Kingsford Smith

29h 17m

2 stops

ONT5:47 pmOntario

$1,131

Air New Zealand

Feb 11

ONT1:33 pmOntario

24h 02m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 25

SYD11:50 amSydney Kingsford Smith

24h 57m

2 stops

ONT5:47 pmOntario

$1,212

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

Sep 20

ONT7:13 pmOntario

18h 42m

1 stop

SYD6:55 amSydney Kingsford Smith

Oct 5

SYD11:20 amSydney Kingsford Smith

18h 58m

1 stop

ONT12:18 pmOntario

$1,083

United Airlines

Nov 8

ONT4:17 pmOntario

22h 03m

1 stop

SYD9:20 amSydney Kingsford Smith

Nov 16

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,084

United Airlines

Sep 20

ONT7:13 pmOntario

18h 42m

1 stop

SYD6:55 amSydney Kingsford Smith

Oct 5

SYD11:20 amSydney Kingsford Smith

18h 58m

1 stop

ONT12:18 pmOntario

$1,085

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 9/27

9:52 am-6:50 am

2 stops27h 58m

Sydney Kingsford Smith

Wed 9/30

9:15 am-11:47 pm

2 stops31h 32m

$1,055

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 11/8

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Mon 11/16

11:50 am-12:29 pm

1 stop19h 39m

$1,084

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 10/28

4:17 pm-9:20 am

1 stop23h 03m

Sydney Kingsford Smith

Mon 11/23

11:50 am-5:56 pm

1 stop25h 06m

$1,094

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 3/16

6:53 pm-9:20 am

1 stop20h 27m

Sydney Kingsford Smith

Wed 4/7

10:20 am-3:27 pm

1 stop22h 07m

$1,094

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 11/18

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Mon 11/23

11:50 am-3:33 pm

1 stop22h 43m

$1,094

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 11/11

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Wed 11/18

11:50 am-12:29 pm

1 stop19h 39m

$1,094

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 9/29

1:52 pm-6:55 am

1 stop24h 03m

Sydney Kingsford Smith

Tue 11/24

11:50 am-12:29 pm

1 stop19h 39m

$1,094

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 11/17

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Tue 12/15

11:50 am-9:38 am

1 stop16h 48m

$1,094

Quickest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 11/24

6:37 pm-9:20 am

1 stop19h 43m

Sydney Kingsford Smith

Mon 1/25

11:50 am-9:47 am

1 stop16h 57m

$1,094

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 11/4

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Wed 2/3

11:50 am-9:47 am

1 stop16h 57m

$1,094

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 $995. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,081.

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	$551
Fastest flight time	18h 42m
Direct flights	None

The best one-way flight to Sydney from Ontario in the past 72 hours is $551. The best round-trip flight deal from Ontario to Sydney found on momondo in the last 72 hours is $1,055.

The fastest flight from Ontario to Sydney takes 18h 42m

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. 18h 42m 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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Cronulla

Leura

Randwick

Manly

Terrigal

Lithgow

Charlestown

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 $551

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 10/21. 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

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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

Airports servicing New South Wales

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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