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

Delta, United Airlines, and Alaska Airlines 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 35% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 13 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 many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?

There is 1 operator available for flights from Ontario Airport to Sydney Kingsford Smith Airport as of November 2025.

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.

$435 Cheap Flights from Ontario to Sydney in 2025/26

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6:53 pm - 7:55 amONT-SYD

19h 02m1 stop

10:20 am - 9:55 amSYD-ONT

16h 35m1 stop

$963United Airlines

Find Deal

dom., mar. 29 - mar., abr. 14

7:15 pm - 9:15 amONT-SYD

20h 00m1 stop

12:10 pm - 12:17 pmSYD-ONT

18h 07m1 stop

$971United Airlines

Find Deal

dom., mar. 15 - mié., mar. 25

1:49 pm - 9:15 amONT-SYD

25h 26m1 stop

11:50 am - 10:35 pmSYD-ONT

28h 45m1 stop

$974United Airlines

Find Deal

lun., mar. 16 - jue., mar. 19

1:24 pm - 9:15 amONT-SYD

24h 51m2 stops

11:50 am - 9:59 pmSYD-ONT

29h 09m1 stop

$975United Airlines

Find Deal

lun., feb. 9 - lun., feb. 23

6:00 am - 7:00 amONT-SYD

30h 00m1 stop

11:50 am - 8:45 pmSYD-ONT

26h 55m2 stops

$976United Airlines

Find Deal

mar., mar. 3 - mié., mar. 18

6:38 pm - 9:15 amONT-SYD

19h 37m1 stop

12:10 pm - 5:37 pmSYD-ONT

24h 27m1 stop

$977United Airlines

Find Deal

sáb., nov. 29 - sáb., dic. 6

5:40 am - 9:15 amONT-SYD

33h 35m2 stops

12:10 pm - 6:00 pmSYD-ONT

23h 50m1 stop

$978United Airlines

Find Deal

lun., mar. 16 - jue., mar. 19

5:40 am - 9:15 amONT-SYD

33h 35m2 stops

12:10 pm - 6:00 pmSYD-ONT

23h 50m1 stop

$979United Airlines

Find Deal

lun., mar. 16 - jue., mar. 19

5:40 am - 6:20 amONT-SYD

30h 40m2 stops

11:20 am - 9:55 amSYD-ONT

16h 35m1 stop

$981United Airlines

Find Deal

vie., mar. 20 - sáb., abr. 4

1:40 pm - 9:15 amONT-SYD

24h 35m1 stop

12:10 pm - 8:42 pmSYD-ONT

27h 32m2 stops

$982United Airlines

Find Deal

vie., nov. 28 - sáb., dic. 13

Lufthansa flights from Ontario to Sydney

Our best Lufthansa deals on Ontario to Sydney flight tickets

Lufthansa

Dec 1

ONT6:00 amOntario

32h 15m

1 stop

SYD9:15 amSydney Kingsford Smith

Dec 17

SYD12:10 pmSydney Kingsford Smith

29h 39m

1 stop

ONT10:49 pmOntario

$997

Find similar

Lufthansa

Nov 16

ONT6:00 amOntario

32h 15m

1 stop

SYD9:15 amSydney Kingsford Smith

Dec 1

SYD12:10 pmSydney Kingsford Smith

29h 41m

1 stop

ONT10:51 pmOntario

$1,280

Find similar

Lufthansa

Nov 16

ONT6:38 pmOntario

19h 37m

1 stop

SYD9:15 amSydney Kingsford Smith

Dec 1

SYD12:10 pmSydney Kingsford Smith

29h 41m

1 stop

ONT10:51 pmOntario

$1,295

Find similar

Hawaiian Airlines flights from Ontario to Sydney

Our best Hawaiian Airlines deals on Ontario to Sydney flight tickets

Hawaiian Airlines

Mar 20

ONT9:50 amOntario

39h 55m

1 stop

SYD7:45 pmSydney Kingsford Smith

Apr 5

SYD9:40 pmSydney Kingsford Smith

17h 15m

1 stop

ONT9:55 pmOntario

$1,019

Find similar

Hawaiian Airlines

Jan 5

ONT8:00 amOntario

40h 45m

1 stop

SYD7:45 pmSydney Kingsford Smith

Jan 24

SYD9:40 pmSydney Kingsford Smith

19h 48m

1 stop

ONT10:28 pmOntario

$1,058

Find similar

Hawaiian Airlines

Jan 21

ONT8:13 amOntario

40h 32m

1 stop

SYD7:45 pmSydney Kingsford Smith

Feb 28

SYD9:40 pmSydney Kingsford Smith

19h 35m

1 stop

ONT10:15 pmOntario

$1,090

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

dom. 3/29

6:53 pm-7:55 am

1 stop19h 02m

Sydney Kingsford Smith

mar. 4/14

10:20 am-9:55 am

1 stop16h 35m

$963

OntarioSydney

ONT - SYD

ONTSYD

Ontario

dom. 3/15

7:15 pm-9:15 am

1 stop20h 00m

Sydney Kingsford Smith

mié. 3/25

12:10 pm-12:17 pm

1 stop18h 07m

$971

OntarioSydney

ONT - SYD

ONTSYD

Ontario

lun. 3/16

1:49 pm-9:15 am

1 stop25h 26m

Sydney Kingsford Smith

jue. 3/19

11:50 am-10:35 pm

1 stop28h 45m

$974

OntarioSydney

ONT - SYD

ONTSYD

Ontario

lun. 2/9

1:24 pm-9:15 am

2 stops24h 51m

Sydney Kingsford Smith

lun. 2/23

11:50 am-9:59 pm

1 stop29h 09m

$975

OntarioSydney

ONT - SYD

ONTSYD

Ontario

mar. 3/3

6:00 am-7:00 am

1 stop30h 00m

Sydney Kingsford Smith

mié. 3/18

11:50 am-8:45 pm

2 stops26h 55m

$976

OntarioSydney

ONT - SYD

ONTSYD

Ontario

sáb. 11/29

6:38 pm-9:15 am

1 stop19h 37m

Sydney Kingsford Smith

sáb. 12/6

12:10 pm-5:37 pm

1 stop24h 27m

$977

OntarioSydney

ONT - SYD

ONTSYD

Ontario

lun. 3/16

5:40 am-9:15 am

2 stops33h 35m

Sydney Kingsford Smith

jue. 3/19

12:10 pm-6:00 pm

1 stop23h 50m

$978

OntarioSydney

ONT - SYD

ONTSYD

Ontario

lun. 3/16

5:40 am-9:15 am

2 stops33h 35m

Sydney Kingsford Smith

jue. 3/19

12:10 pm-6:00 pm

1 stop23h 50m

$979

OntarioSydney

ONT - SYD

ONTSYD

Ontario

vie. 3/20

5:40 am-6:20 am

2 stops30h 40m

Sydney Kingsford Smith

sáb. 4/4

11:20 am-9:55 am

1 stop16h 35m

$981

OntarioSydney

ONT - SYD

ONTSYD

Ontario

vie. 11/28

1:40 pm-9:15 am

1 stop24h 35m

Sydney Kingsford Smith

sáb. 12/13

12:10 pm-8:42 pm

2 stops27h 32m

$982

Flights are sorted by cheapest round-trip flights first.

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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 $1,010. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,084.

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

Direct flights	None

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 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 many operators does momondo search for flights from Ontario Airport to Sydney Kingsford Smith Airport?
There is 1 operator available for flights from Ontario Airport to Sydney Kingsford Smith Airport as of November 2025.
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?
Based on momondo bookings for flights between Ontario and Sydney, the leading airline is United Airlines, making up 100% of the total bookings.

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 Airlines	PriceFrom $926	Free Cancellation	Rating 7.4 9,017 reviews		Search United Airlines flights

Parramatta

Bondi Beach

Katoomba

Wollongong

Randwick

Coogee

Cronulla

Manly

Penrith

Leura

Lithgow

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

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Cheap flights from Ontario to Sydney from $435

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 11/18. 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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Lufthansa flights from Ontario to Sydney

Our best Lufthansa deals on Ontario to Sydney flight tickets

Hawaiian Airlines flights from Ontario to Sydney

Our best Hawaiian Airlines deals on Ontario to Sydney flight tickets

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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 $1,010. The most expensive day to fly to Sydney is Saturday, with ticket prices averaging around $1,084.

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

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

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating 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

Find info about flight duration, direct flights, and airports for your flight from Ontario to Sydney

Direct flights

How far is Ontario to Sydney Kingsford Smith by plane?

When did momondo last update prices for flights from Ontario Airport to Sydney Kingsford Smith Airport?

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?

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

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

Traveling to a place near Sydney?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Sydney?

Can I find flights from Ontario to Sydney with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Sydney?

I’m not ready to book a flight from Ontario to Sydney right now. Can momondo alert me if prices change?

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