Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Ontario to Sydney from $539

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:17 pm - 9:20 amONT  Ontario-SYD Sydney Kingsford Smith
22h 03m1 stop San Francisco
United Airlines Logo
11:50 am - 12:29 pmSYD  Sydney Kingsford Smith-ONT Ontario
19h 39m1 stop San Francisco
$1,088United Airlines
Wed, Nov 4 - Wed, Nov 11
United Airlines Logo
4:03 pm - 9:20 amONT  Ontario-SYD Sydney Kingsford Smith
22h 17m1 stop San Francisco
United Airlines Logo
11:50 am - 12:20 pmSYD  Sydney Kingsford Smith-ONT Ontario
19h 30m1 stop San Francisco
$1,095United Airlines
Tue, Feb 16 - Wed, Mar 3
United Airlines Logo
4:17 pm - 9:20 amONT  Ontario-SYD Sydney Kingsford Smith
22h 03m1 stop San Francisco
United Airlines Logo
11:50 am - 3:33 pmSYD  Sydney Kingsford Smith-ONT Ontario
22h 43m1 stop San Francisco
$1,095United Airlines
Tue, Nov 10 - Tue, Nov 24
United Airlines Logo
4:03 pm - 9:20 amONT  Ontario-SYD Sydney Kingsford Smith
22h 17m1 stop San Francisco
United Airlines Logo
11:50 am - 9:57 amSYD  Sydney Kingsford Smith-ONT Ontario
17h 07m1 stop San Francisco
$1,095United Airlines
Mon, Feb 1 - Mon, Feb 15
United Airlines Logo
4:17 pm - 9:20 amONT  Ontario-SYD Sydney Kingsford Smith
22h 03m1 stop San Francisco
United Airlines Logo
11:50 am - 12:29 pmSYD  Sydney Kingsford Smith-ONT Ontario
19h 39m1 stop San Francisco
$1,095United Airlines
Sun, Nov 1 - Tue, Nov 17
United Airlines Logo
4:17 pm - 9:20 amONT  Ontario-SYD Sydney Kingsford Smith
22h 03m1 stop San Francisco
United Airlines Logo
11:50 am - 12:29 pmSYD  Sydney Kingsford Smith-ONT Ontario
19h 39m1 stop San Francisco
$1,095United Airlines
Wed, Nov 11 - Wed, Nov 18
United Airlines Logo
4:03 pm - 6:55 amONT  Ontario-SYD Sydney Kingsford Smith
21h 52m1 stop San Francisco
United Airlines Logo
11:20 am - 10:23 amSYD  Sydney Kingsford Smith-ONT Ontario
17h 03m1 stop San Francisco
$1,096United Airlines
Tue, Sep 29 - Wed, Oct 14
United Airlines Logo
6:32 pm - 6:55 amONT  Ontario-SYD Sydney Kingsford Smith
19h 23m1 stop San Francisco
United Airlines Logo
11:20 am - 12:18 pmSYD  Sydney Kingsford Smith-ONT Ontario
18h 58m1 stop San Francisco
$1,096United Airlines
Sun, Sep 27 - Mon, Oct 12
United Airlines Logo
6:32 pm - 6:55 amONT  Ontario-SYD Sydney Kingsford Smith
19h 23m1 stop San Francisco
United Airlines Logo
11:20 am - 10:23 amSYD  Sydney Kingsford Smith-ONT Ontario
17h 03m1 stop San Francisco
$1,096United Airlines
Mon, Sep 28 - Tue, Oct 13
United Airlines Logo
4:03 pm - 6:55 amONT  Ontario-SYD Sydney Kingsford Smith
21h 52m1 stop San Francisco
United Airlines Logo
11:20 am - 10:23 amSYD  Sydney Kingsford Smith-ONT Ontario
17h 03m1 stop San Francisco
$1,096United Airlines
Sun, Sep 27 - Tue, Oct 13

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets
United Airlines
Sep 13
ONT7:13 pmOntario
18h 42m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 28
SYD10:20 amSydney Kingsford Smith
18h 58m
1 stop
ONT12:18 pmOntario
$1,085
United Airlines
Sep 13
ONT7:13 pmOntario
18h 42m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 28
SYD10:20 amSydney Kingsford Smith
18h 58m
1 stop
ONT12:18 pmOntario
$1,086
United Airlines
Sep 13
ONT7:13 pmOntario
18h 42m
1 stop
SYD6:55 amSydney Kingsford Smith
Sep 28
SYD10:20 amSydney Kingsford Smith
18h 58m
1 stop
ONT12:18 pmOntario
$1,087

Delta flights from Ontario to Sydney

Our best Delta deals on Ontario to Sydney flight tickets
Delta
Sep 20
ONT1:04 pmOntario
24h 46m
2 stops
SYD6:50 amSydney Kingsford Smith
Sep 23
SYD9:15 amSydney Kingsford Smith
31h 32m
2 stops
ONT11:47 pmOntario
$1,056
Delta
Nov 26
ONT6:00 amOntario
31h 30m
2 stops
SYD8:30 amSydney Kingsford Smith
Dec 3
SYD10:40 amSydney Kingsford Smith
32h 18m
2 stops
ONT11:58 pmOntario
$1,155
Delta
Sep 24
ONT6:00 amOntario
31h 50m
2 stops
SYD6:50 amSydney Kingsford Smith
Sep 27
SYD9:15 amSydney Kingsford Smith
31h 32m
2 stops
ONT11:47 pmOntario
$1,156

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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 11/11

11:50 am-12:29 pm

1 stop19h 39m

$1,088

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 2/16

4:03 pm-9:20 am

1 stop22h 17m

Sydney Kingsford Smith

Wed 3/3

11:50 am-12:20 pm

1 stop19h 30m

$1,095

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-3:33 pm

1 stop22h 43m

$1,095

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 2/1

4:03 pm-9:20 am

1 stop22h 17m

Sydney Kingsford Smith

Mon 2/15

11:50 am-9:57 am

1 stop17h 07m

$1,095

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 11/1

4:17 pm-9:20 am

1 stop22h 03m

Sydney Kingsford Smith

Tue 11/17

11:50 am-12:29 pm

1 stop19h 39m

$1,095

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

$1,095

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Tue 9/29

4:03 pm-6:55 am

1 stop21h 52m

Sydney Kingsford Smith

Wed 10/14

11:20 am-10:23 am

1 stop17h 03m

$1,096

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 9/27

6:32 pm-6:55 am

1 stop19h 23m

Sydney Kingsford Smith

Mon 10/12

11:20 am-12:18 pm

1 stop18h 58m

$1,096
Quickest round-trip

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Mon 9/28

6:32 pm-6:55 am

1 stop19h 23m

Sydney Kingsford Smith

Tue 10/13

11:20 am-10:23 am

1 stop17h 03m

$1,096

OntarioSydney

ONT Ontario - SYD Sydney Kingsford Smith

ONTSYD

Ontario

Sun 9/27

4:03 pm-6:55 am

1 stop21h 52m

Sydney Kingsford Smith

Tue 10/13

11:20 am-10:23 am

1 stop17h 03m

$1,096

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Sydney from

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

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 $996. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,085.

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

$539

Fastest flight time

17h 50m

Direct flights

None
The best one-way flight to Sydney from Ontario in the past 72 hours is $539. The best round-trip flight deal from Ontario to Sydney found on momondo in the last 72 hours is $1,088.
The fastest flight from Ontario to Sydney takes 17h 50m
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 50m 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.

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Wollongong
Penrith
Katoomba
Coogee
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.

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 10/12
Mon 10/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia