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

Air New Zealand and United Airlines 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 13 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.

$498 Cheap Flights from Ontario to Australia in 2026

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.

9:00 am - 7:45 pm

ONT

SYD

39h 45m

1 stop

9:40 pm - 9:28 pm

SYD

ONT

18h 48m

1 stop

$958Multiple Airlines

Tue, Dec 29 - Sun, Jan 24

7:00 am - 6:50 pm

ONT

SYD

17h 50m

1 stop

9:40 pm - 9:32 pm

SYD

ONT

18h 52m

1 stop

$965Multiple Airlines

Mon, Oct 19 - Sun, Nov 1

9:31 am - 6:50 pm

ONT

SYD

40h 19m

1 stop

8:45 pm - 10:10 pm

SYD

ONT

18h 25m

1 stop

$1,002Multiple Airlines

Tue, Aug 25 - Sun, Aug 30

9:31 am - 6:50 pm

ONT

SYD

40h 19m

1 stop

8:45 pm - 9:22 pm

SYD

ONT

18h 37m

1 stop

$1,004Multiple Airlines

Tue, Sep 29 - Tue, Oct 13

9:11 am - 6:50 pm

ONT

SYD

40h 39m

1 stop

8:45 pm - 10:10 pm

SYD

ONT

18h 25m

1 stop

$1,009Multiple Airlines

Thu, Jul 30 - Sun, Aug 23

1:06 pm - 7:50 am

ONT

MEL

25h 44m

2 stops

10:00 am - 10:04 pm

MEL

ONT

29h 04m

2 stops

$1,060Delta

Wed, Aug 19 - Wed, Sep 9

5:05 pm - 7:50 am

ONT

MEL

45h 45m

2 stops

10:00 am - 10:04 pm

MEL

ONT

29h 04m

2 stops

$1,073Delta

Tue, Aug 25 - Wed, Sep 9

6:39 pm - 8:15 am

ONT

MEL

20h 36m

1 stop

10:55 am - 12:12 pm

MEL

ONT

18h 17m

1 stop

$1,089United Airlines

Mon, Aug 10 - Mon, Aug 24

6:39 pm - 6:30 am

ONT

BNE

18h 51m

1 stop

10:30 am - 12:12 pm

BNE

ONT

18h 42m

1 stop

$1,090United Airlines

Fri, Aug 7 - Fri, Aug 21

6:39 pm - 8:15 am

ONT

MEL

20h 36m

1 stop

10:55 am - 12:12 pm

MEL

ONT

18h 17m

1 stop

$1,091United Airlines

Mon, Aug 10 - Mon, Aug 24

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American Airlines flights from Ontario to Australia

Our best American Airlines deals on Ontario to Australia flight tickets

American Airlines

Nov 1

ONT7:00 amOntario

29h 30m

1 stop

BNE6:30 amBrisbane

Nov 7

BNE9:40 amBrisbane

30h 43m

1 stop

ONT10:23 pmOntario

$1,147

American Airlines

Aug 3

ONT12:35 pmOntario

25h 55m

2 stops

SYD7:30 amSydney Kingsford Smith

Aug 10

SYD9:10 amSydney Kingsford Smith

26h 05m

2 stops

ONT6:15 pmOntario

$1,187

Delta flights from Ontario to Australia

Our best Delta deals on Ontario to Australia flight tickets

Delta

Aug 19

ONT1:06 pmOntario

25h 44m

2 stops

MEL7:50 amMelbourne

Sep 9

MEL10:00 amMelbourne

29h 04m

2 stops

ONT10:04 pmOntario

$1,060

Delta

Aug 25

ONT5:05 pmOntario

45h 45m

2 stops

MEL7:50 amMelbourne

Sep 9

MEL10:00 amMelbourne

29h 04m

2 stops

ONT10:04 pmOntario

$1,073

Delta

Nov 26

ONT6:00 amOntario

31h 30m

2 stops

SYD8:30 amSydney Kingsford Smith

Dec 3

SYD10:40 amSydney Kingsford Smith

32h 08m

2 stops

ONT11:48 pmOntario

$1,149

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 12/29

9:00 am-7:45 pm

1 stop39h 45m

Sydney Kingsford Smith

Sun 1/24

9:40 pm-9:28 pm

1 stop18h 48m

$958

Quickest round-trip

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 10/19

7:00 am-6:50 pm

1 stop17h 50m

Sydney Kingsford Smith

Sun 11/1

9:40 pm-9:32 pm

1 stop18h 52m

$965

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 8/25

9:31 am-6:50 pm

1 stop40h 19m

Sydney Kingsford Smith

Sun 8/30

8:45 pm-10:10 pm

1 stop18h 25m

$1,002

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 9/29

9:31 am-6:50 pm

1 stop40h 19m

Sydney Kingsford Smith

Tue 10/13

8:45 pm-9:22 pm

1 stop18h 37m

$1,004

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 7/30

9:11 am-6:50 pm

1 stop40h 39m

Sydney Kingsford Smith

Sun 8/23

8:45 pm-10:10 pm

1 stop18h 25m

$1,009

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Wed 8/19

1:06 pm-7:50 am

2 stops25h 44m

Melbourne

Wed 9/9

10:00 am-10:04 pm

2 stops29h 04m

$1,060

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Tue 8/25

5:05 pm-7:50 am

2 stops45h 45m

Melbourne

Wed 9/9

10:00 am-10:04 pm

2 stops29h 04m

$1,073

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 8/10

6:39 pm-8:15 am

1 stop20h 36m

Melbourne

Mon 8/24

10:55 am-12:12 pm

1 stop18h 17m

$1,089

OntarioBrisbane

ONT - BNE

ONTBNE

Ontario

Fri 8/7

6:39 pm-6:30 am

1 stop18h 51m

Brisbane

Fri 8/21

10:30 am-12:12 pm

1 stop18h 42m

$1,090

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Mon 8/10

6:39 pm-8:15 am

1 stop20h 36m

Melbourne

Mon 8/24

10:55 am-12:12 pm

1 stop18h 17m

$1,091

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	17h 50m
Direct flights	None

The fastest flight from Ontario to Australia takes 17h 50m

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

Search flight deals

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.