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 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.

$491 Cheap Flights from Ontario to Sydney in 2026/27

Find the cheapest flights from Ontario to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

$989Multiple Airlines

Wed, Feb 3 - Sun, Feb 14

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

39h 45m1 stop Honolulu

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

18h 48m1 stop Honolulu

$994Multiple Airlines

Sun, Feb 21 - Sun, Mar 7

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

17h 45m1 stop Honolulu

9:40 pm - 9:18 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 38m1 stop Honolulu

$996Multiple Airlines

Wed, Feb 3 - Sun, Feb 7

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

39h 45m1 stop Honolulu

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

18h 48m1 stop Honolulu

$999Multiple Airlines

Sun, Feb 21 - Tue, Mar 2

9:55 am - 7:45 pmONT Ontario-SYD Sydney Kingsford Smith

38h 50m1 stop Honolulu

9:40 pm - 9:25 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 45m1 stop Honolulu

$1,013Multiple Airlines

Tue, Nov 17 - Tue, Dec 1

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

$1,027Multiple Airlines

Thu, Oct 29 - Sun, Nov 8

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

$1,037Multiple Airlines

Sat, Feb 6 - Tue, Feb 16

9:55 am - 7:45 pmONT Ontario-SYD Sydney Kingsford Smith

38h 50m1 stop Honolulu

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

20h 03m1 stop Honolulu

$1,044Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

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

$1,046Multiple Airlines

Mon, Feb 1 - Thu, Feb 18

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

$1,049Multiple Airlines

Sun, Feb 28 - Sat, May 22

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

8:45 pm - 9:29 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

$1,072Multiple Airlines

Thu, Oct 15 - Thu, Oct 22

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

19h 23m1 stop San Francisco

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

18h 58m1 stop San Francisco

$1,127United Airlines

Mon, Oct 12 - Mon, Oct 19

7:00 am - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

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

17h 49m1 stop Honolulu

$1,172Multiple Airlines

Thu, Oct 15 - Sat, Oct 31

4:03 pm - 7:55 amONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

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

19h 39m1 stop San Francisco

$1,177United Airlines

Mon, Oct 12 - Sat, Nov 7

5:00 am - 7:55 amONT Ontario-SYD Sydney Kingsford Smith

32h 55m2 stops Denver Intl San Francisco

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

19h 39m1 stop San Francisco

$1,181United Airlines

Mon, Oct 12 - Sat, Nov 7

7:00 am - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

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

17h 49m1 stop Honolulu

$1,183Multiple Airlines

Sat, Oct 10 - Sun, Oct 25

7:00 am - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

8:45 pm - 9:29 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

$1,219Multiple Airlines

Sat, Oct 10 - Sat, Oct 17

5:00 am - 7:55 amONT Ontario-SYD Sydney Kingsford Smith

32h 55m2 stops Denver Intl San Francisco

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

18h 58m1 stop San Francisco

$1,281United Airlines

Mon, Oct 12 - Mon, Oct 19

7:00 am - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

8:45 pm - 9:29 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

$1,283Multiple Airlines

Sat, Oct 10 - Sat, Oct 17

7:00 am - 6:50 pmONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

8:45 pm - 9:29 pmSYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

$1,324Multiple Airlines

Mon, Oct 12 - Fri, Oct 16

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Lufthansa flights from Ontario to Sydney

Our best Lufthansa deals on Ontario to Sydney flight tickets

Lufthansa

Oct 18

ONT1:52 pmOntario

24h 03m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,081

Lufthansa

Oct 18

ONT1:52 pmOntario

24h 03m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,082

Lufthansa

Oct 18

ONT1:52 pmOntario

24h 03m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 3

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,086

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

United Airlines

Oct 18

ONT4:03 pmOntario

21h 52m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,114

United Airlines

Oct 18

ONT4:03 pmOntario

21h 52m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,115

United Airlines

Oct 18

ONT4:03 pmOntario

21h 52m

1 stop

SYD7:55 amSydney Kingsford Smith

Nov 2

SYD11:50 amSydney Kingsford Smith

19h 39m

1 stop

ONT12:29 pmOntario

$1,117

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 2/3

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Sun 2/14

9:40 pm-9:28 pm

1 stop18h 48m

$989

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 2/21

9:00 am-7:45 pm

1 stop39h 45m

Sydney Kingsford Smith

Sun 3/7

9:40 pm-9:28 pm

1 stop18h 48m

$994

Quickest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Wed 2/3

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Sun 2/7

9:40 pm-9:18 pm

1 stop18h 38m

$996

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 2/21

9:00 am-7:45 pm

1 stop39h 45m

Sydney Kingsford Smith

Tue 3/2

9:40 pm-9:28 pm

1 stop18h 48m

$999

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 11/17

9:55 am-7:45 pm

1 stop38h 50m

Sydney Kingsford Smith

Tue 12/1

9:40 pm-9:25 pm

1 stop18h 45m

$1,013

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Thu 10/29

7:00 am-7:45 pm

1 stop18h 45m

Sydney Kingsford Smith

Sun 11/8

9:40 pm-10:43 pm

1 stop20h 03m

$1,027

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sat 2/6

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Tue 2/16

9:40 pm-9:28 pm

1 stop18h 48m

$1,037

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Thu 11/5

9:55 am-7:45 pm

1 stop38h 50m

Sydney Kingsford Smith

Sun 11/8

9:40 pm-10:43 pm

1 stop20h 03m

$1,044

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 2/1

7:00 am-7:45 pm

1 stop17h 45m

Sydney Kingsford Smith

Thu 2/18

9:40 pm-9:28 pm

1 stop18h 48m

$1,046

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 2/28

9:00 am-7:45 pm

1 stop39h 45m

Sydney Kingsford Smith

Sat 5/22

8:45 pm-9:28 pm

1 stop17h 43m

$1,049

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 $993. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,075.

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	$491
Fastest flight time	17h 45m
Direct flights	None

The best one-way flight to Sydney from Ontario in the past 72 hours is $491. The best round-trip flight deal from Ontario to Sydney found on momondo in the last 72 hours is $989.

The fastest flight from Ontario to Sydney takes 17h 45m

There are no direct flights from Ontario to Sydney. There are no popular flight routes from Ontario to Sydney.

Search flight deals

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. 17h 45m 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.

Parramatta

Bondi Beach

Wollongong

Penrith

Katoomba

Coogee

Leura

Randwick

Cronulla

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Mon 11/9

Mon 11/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Nearby airports

Airlines

Cabin classes

Other Australia destinations

Other flights from Ontario

Complete your trip

Feeling lucky

Cheap flights from Ontario to Sydney from $491

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 2/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Ontario to Sydney

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Lufthansa flights from Ontario to Sydney

Our best Lufthansa deals on Ontario to Sydney flight tickets

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Ontario to Sydney that are best for you.

See travel insights to Sydney from

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

Fastest flight time

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.

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.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

Complete your trip to Sydney

Explore popular destinations other users love

According to popular flight searches on momondo this year