What is the cheapest airline that flies from Ontario to Australia?

United Airlines and Qatar Airways are the most popular carriers operating from Ontario to Australia

What airlines fly to Australia?

Qantas Airways, Fiji Airways and United Airlines are the top three most popular airlines that fly to Australia from Ontario according to our data. Qantas Airways is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Australia. Keep in mind that there are 15 different airlines that fly to Australia 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 Australia?

Prices for flights from Ontario Airport to Australia are refreshed on a daily basis.

How old do you have to be to fly from Ontario Airport to Australia?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Australia.

What documentation or ID do you need to fly to Australia?

The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$490 Cheap Flights from Ontario to Australia in 2026

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Find the cheapest flights from Ontario to Australia

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 6:50 am

ONT

SYD

31h 50m

2 stops

9:15 am - 4:25 pm

SYD

ONT

24h 10m

2 stops

$1,100Delta

Wed, Apr 29 - Wed, May 6

9:11 am - 6:50 pm

ONT

SYD

40h 39m

1 stop

8:45 pm - 9:45 pm

SYD

ONT

18h 00m

1 stop

$1,101Multiple Airlines

Tue, Jul 21 - Sun, Aug 9

7:20 am - 6:50 pm

ONT

SYD

18h 30m

1 stop

8:45 pm - 9:20 pm

SYD

ONT

17h 35m

1 stop

$1,104Multiple Airlines

Fri, Aug 28 - Sun, Sep 13

7:20 am - 6:50 pm

ONT

SYD

18h 30m

1 stop

8:45 pm - 9:20 pm

SYD

ONT

17h 35m

1 stop

$1,105Multiple Airlines

Fri, Aug 28 - Sat, Sep 12

7:20 am - 6:50 pm

ONT

SYD

18h 30m

1 stop

8:45 pm - 9:20 pm

SYD

ONT

17h 35m

1 stop

$1,109Multiple Airlines

Fri, Aug 28 - Sat, Sep 12

6:49 pm - 6:55 am

ONT

SYD

19h 06m

1 stop

10:20 am - 12:22 pm

SYD

ONT

19h 02m

1 stop

$1,133United Airlines

Sun, Apr 26 - Sun, May 10

6:49 pm - 6:55 am

ONT

SYD

19h 06m

1 stop

10:20 am - 9:41 am

SYD

ONT

16h 21m

1 stop

$1,134United Airlines

Sun, Apr 26 - Sun, May 10

6:49 pm - 6:55 am

ONT

SYD

19h 06m

1 stop

10:20 am - 12:22 pm

SYD

ONT

19h 02m

1 stop

$1,140United Airlines

Sun, Apr 26 - Sun, May 10

6:00 am - 11:55 am

ONT

PER

38h 55m

2 stops

10:45 pm - 7:03 pm

PER

ONT

35h 18m

2 stops

$1,554Qatar Airways

Sun, Aug 30 - Mon, Sep 14

6:00 am - 11:55 am

ONT

PER

38h 55m

2 stops

10:45 pm - 7:03 pm

PER

ONT

35h 18m

2 stops

$1,594Qatar Airways

Sat, Aug 29 - Tue, Sep 15

United Airlines flights from Ontario to Australia

Our best United Airlines deals on Ontario to Australia flight tickets

United Airlines

Apr 26

ONT6:49 pmOntario

19h 06m

1 stop

SYD6:55 amSydney Kingsford Smith

May 10

SYD10:20 amSydney Kingsford Smith

19h 02m

1 stop

ONT12:22 pmOntario

$1,133

United Airlines

Apr 26

ONT6:49 pmOntario

19h 06m

1 stop

SYD6:55 amSydney Kingsford Smith

May 10

SYD10:20 amSydney Kingsford Smith

16h 21m

1 stop

ONT9:41 amOntario

$1,134

United Airlines

Apr 26

ONT6:49 pmOntario

19h 06m

1 stop

SYD6:55 amSydney Kingsford Smith

May 10

SYD10:20 amSydney Kingsford Smith

19h 02m

1 stop

ONT12:22 pmOntario

$1,140

Delta flights from Ontario to Australia

Our best Delta deals on Ontario to Australia flight tickets

Delta

Apr 29

ONT6:00 amOntario

31h 50m

2 stops

SYD6:50 amSydney Kingsford Smith

May 6

SYD9:15 amSydney Kingsford Smith

24h 10m

2 stops

ONT4:25 pmOntario

$1,100

Delta

Aug 30

ONT9:55 amOntario

27h 55m

2 stops

SYD6:50 amSydney Kingsford Smith

Sep 13

SYD9:15 amSydney Kingsford Smith

23h 59m

2 stops

ONT4:14 pmOntario

$1,346

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 4/29

6:00 am-6:50 am

2 stops31h 50m

Sydney Kingsford Smith

Wed 5/6

9:15 am-4:25 pm

2 stops24h 10m

$1,100

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 7/21

9:11 am-6:50 pm

1 stop40h 39m

Sydney Kingsford Smith

Sun 8/9

8:45 pm-9:45 pm

1 stop18h 00m

$1,101

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 8/28

7:20 am-6:50 pm

1 stop18h 30m

Sydney Kingsford Smith

Sun 9/13

8:45 pm-9:20 pm

1 stop17h 35m

$1,104

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 8/28

7:20 am-6:50 pm

1 stop18h 30m

Sydney Kingsford Smith

Sat 9/12

8:45 pm-9:20 pm

1 stop17h 35m

$1,105

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 8/28

7:20 am-6:50 pm

1 stop18h 30m

Sydney Kingsford Smith

Sat 9/12

8:45 pm-9:20 pm

1 stop17h 35m

$1,109

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 4/26

6:49 pm-6:55 am

1 stop19h 06m

Sydney Kingsford Smith

Sun 5/10

10:20 am-12:22 pm

1 stop19h 02m

$1,133

Quickest round-trip

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 4/26

6:49 pm-6:55 am

1 stop19h 06m

Sydney Kingsford Smith

Sun 5/10

10:20 am-9:41 am

1 stop16h 21m

$1,134

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 4/26

6:49 pm-6:55 am

1 stop19h 06m

Sydney Kingsford Smith

Sun 5/10

10:20 am-12:22 pm

1 stop19h 02m

$1,140

OntarioPerth

ONT - PER

ONTPER

Ontario

Sun 8/30

6:00 am-11:55 am

2 stops38h 55m

Perth

Mon 9/14

10:45 pm-7:03 pm

2 stops35h 18m

$1,554

OntarioPerth

ONT - PER

ONTPER

Ontario

Sat 8/29

6:00 am-11:55 am

2 stops38h 55m

Perth

Tue 9/15

10:45 pm-7:03 pm

2 stops35h 18m

$1,594

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 Australia

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

Can stopping save me money on Ontario to Australia flights?

You could potentially save up to 16% on your flight if you consider stops on a Ontario to Australia flight.

Cheap Ontario to Australia flight deals and tips

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

Fastest flight time	18h 17m
Direct flights	None

The fastest flight from Ontario to Australia takes 18h 17m

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

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Frequently asked questions about flying from Ontario to Australia

When did momondo last update prices for flights from Ontario Airport to Australia?
Prices for flights from Ontario Airport to Australia are refreshed on a daily basis.
How old do you have to be to fly from Ontario Airport to Australia?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Australia.
What documentation or ID do you need to fly to Australia?
The required travel and health documents for your Australia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Australia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Ontario to Australia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Australia that suits you.

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

All flight searches from Ontario to Australia on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Australia.

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

Of course. momondo tracks the price of Ontario to Australia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.