Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Sydney from $464

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 2/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Ontario to Sydney

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 8:30 am
ONT
-
SYD
31h 30m2 stops
Delta Logo
10:40 am - 4:15 pm
SYD
-
ONT
24h 35m2 stops
$927Delta
mié., feb. 4 - mié., feb. 11
United Airlines Logo
1:53 pm - 6:20 am
ONT
-
SYD
21h 27m1 stop
United Airlines Logo
12:10 pm - 11:18 am
SYD
-
ONT
18h 08m1 stop
$962United Airlines
lun., ene. 26 - dom., feb. 8
Lufthansa Logo
1:40 pm - 9:15 am
ONT
-
SYD
25h 35m1 stop
Lufthansa Logo
12:10 pm - 12:18 pm
SYD
-
ONT
18h 08m1 stop
$968Lufthansa
lun., mar. 9 - dom., mar. 15
United Airlines Logo
6:37 pm - 6:20 am
ONT
-
SYD
17h 43m1 stop
United Airlines Logo
12:10 pm - 12:18 pm
SYD
-
ONT
18h 08m1 stop
$973United Airlines
dom., mar. 15 - lun., mar. 23
United Airlines Logo
6:39 pm - 9:15 am
ONT
-
SYD
19h 36m1 stop
United Airlines Logo
10:20 am - 9:43 am
SYD
-
ONT
16h 23m1 stop
$976United Airlines
dom., feb. 8 - jue., may. 7
United Airlines Logo
1:53 pm - 9:15 am
ONT
-
SYD
24h 22m1 stop
United Airlines Logo
11:50 am - 8:58 pm
SYD
-
ONT
28h 08m2 stops
$977United Airlines
mar., ene. 20 - mar., ene. 27
United Airlines Logo
6:32 pm - 9:15 am
ONT
-
SYD
19h 43m1 stop
United Airlines Logo
2:00 pm - 12:17 pm
SYD
-
ONT
17h 17m1 stop
$979United Airlines
sáb., ene. 17 - sáb., ene. 24
United Airlines Logo
1:53 pm - 9:15 am
ONT
-
SYD
24h 22m1 stop
United Airlines Logo
12:10 pm - 8:50 pm
SYD
-
ONT
27h 40m2 stops
$980United Airlines
sáb., feb. 28 - mié., mar. 4
United Airlines Logo
6:37 pm - 7:55 am
ONT
-
SYD
19h 18m1 stop
United Airlines Logo
10:20 am - 10:45 pm
SYD
-
ONT
29h 25m1 stop
$982United Airlines
sáb., mar. 28 - dom., abr. 5
United Airlines Logo
1:50 pm - 9:05 am
ONT
-
SYD
24h 15m2 stops
United Airlines Logo
11:20 am - 5:41 pm
SYD
-
ONT
25h 21m2 stops
$983United Airlines
vie., feb. 13 - sáb., feb. 28

United Airlines flights from Ontario to Sydney

Our best United Airlines deals on Ontario to Sydney flight tickets
United Airlines
Jan 26
ONT1:53 pmOntario
21h 27m
1 stop
SYD6:20 amSydney Kingsford Smith
Feb 8
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT11:18 amOntario
$962
Find similar
United Airlines
Dec 29
ONT6:39 pmOntario
19h 36m
1 stop
SYD9:15 amSydney Kingsford Smith
Jan 13
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT11:18 amOntario
$963
Find similar
United Airlines
Dec 29
ONT6:39 pmOntario
19h 36m
1 stop
SYD9:15 amSydney Kingsford Smith
Jan 13
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT11:18 amOntario
$967
Find similar

Lufthansa flights from Ontario to Sydney

Our best Lufthansa deals on Ontario to Sydney flight tickets
Lufthansa
Mar 9
ONT1:40 pmOntario
25h 35m
1 stop
SYD9:15 amSydney Kingsford Smith
Mar 15
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT12:18 pmOntario
$968
Find similar
Lufthansa
Dec 29
ONT6:39 pmOntario
19h 36m
1 stop
SYD9:15 amSydney Kingsford Smith
Jan 13
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT11:18 amOntario
$984
Find similar
Lufthansa
Dec 29
ONT6:39 pmOntario
19h 36m
1 stop
SYD9:15 amSydney Kingsford Smith
Jan 13
SYD12:10 pmSydney Kingsford Smith
24h 41m
1 stop
ONT5:51 pmOntario
$996
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Sydney that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated diciembre 23, 2025.
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

OntarioSydney

ONT - SYD

ONTSYD

Ontario

mié. 2/4

6:00 am-8:30 am

2 stops31h 30m

Sydney Kingsford Smith

mié. 2/11

10:40 am-4:15 pm

2 stops24h 35m

$927

OntarioSydney

ONT - SYD

ONTSYD

Ontario

lun. 1/26

1:53 pm-6:20 am

1 stop21h 27m

Sydney Kingsford Smith

dom. 2/8

12:10 pm-11:18 am

1 stop18h 08m

$962

OntarioSydney

ONT - SYD

ONTSYD

Ontario

lun. 3/9

1:40 pm-9:15 am

1 stop25h 35m

Sydney Kingsford Smith

dom. 3/15

12:10 pm-12:18 pm

1 stop18h 08m

$968

OntarioSydney

ONT - SYD

ONTSYD

Ontario

dom. 3/15

6:37 pm-6:20 am

1 stop17h 43m

Sydney Kingsford Smith

lun. 3/23

12:10 pm-12:18 pm

1 stop18h 08m

$973

OntarioSydney

ONT - SYD

ONTSYD

Ontario

dom. 2/8

6:39 pm-9:15 am

1 stop19h 36m

Sydney Kingsford Smith

jue. 5/7

10:20 am-9:43 am

1 stop16h 23m

$976

OntarioSydney

ONT - SYD

ONTSYD

Ontario

mar. 1/20

1:53 pm-9:15 am

1 stop24h 22m

Sydney Kingsford Smith

mar. 1/27

11:50 am-8:58 pm

2 stops28h 08m

$977

OntarioSydney

ONT - SYD

ONTSYD

Ontario

sáb. 1/17

6:32 pm-9:15 am

1 stop19h 43m

Sydney Kingsford Smith

sáb. 1/24

2:00 pm-12:17 pm

1 stop17h 17m

$979

OntarioSydney

ONT - SYD

ONTSYD

Ontario

sáb. 2/28

1:53 pm-9:15 am

1 stop24h 22m

Sydney Kingsford Smith

mié. 3/4

12:10 pm-8:50 pm

2 stops27h 40m

$980

OntarioSydney

ONT - SYD

ONTSYD

Ontario

sáb. 3/28

6:37 pm-7:55 am

1 stop19h 18m

Sydney Kingsford Smith

dom. 4/5

10:20 am-10:45 pm

1 stop29h 25m

$982

OntarioSydney

ONT - SYD

ONTSYD

Ontario

vie. 2/13

1:50 pm-9:05 am

2 stops24h 15m

Sydney Kingsford Smith

sáb. 2/28

11:20 am-5:41 pm

2 stops25h 21m

$983

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 $992. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,057.

What is the cheapest time of day to depart on your flight to Sydney?

According to our data, the cheapest time of day to fly to Sydney is in the morning. momondo users have found flights departing from Ontario to Sydney in the morning for as low as $949. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly at noon, with an average ticket price of $1,126. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fastest flight time

19h 01m

Direct flights

None
The fastest flight from Ontario to Sydney takes 19h 01m
There are no direct flights from Ontario to Sydney. There are no popular flight routes from Ontario to Sydney.
Search flight deals

  • 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 01m 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 many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?

  • 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.

  • What is the most popular airline from Ontario to Sydney?

Best airlines flying from Ontario to Sydney

Compare and see reviews for airlines that fly from Ontario to Sydney with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $926Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights

Traveling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Parramatta
Bondi Beach
Katoomba
Wollongong
Randwick
Coogee
Manly
Penrith
Cronulla
Lithgow
Leura
Charlestown
Terrigal
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
jue. 1/22
jue. 1/29
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia