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

United Airlines and Air New Zealand 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.

$564 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.

9:31 am - 6:50 pm

ONT

SYD

40h 19m

1 stop

8:45 pm - 10:10 pm

SYD

ONT

18h 25m

1 stop

$1,041Multiple Airlines

Thu, Sep 3 - Sun, Sep 20

7:00 am - 7:45 pm

ONT

SYD

18h 45m

1 stop

9:40 pm - 9:32 pm

SYD

ONT

18h 52m

1 stop

$1,047Multiple Airlines

Mon, Oct 26 - Sun, Nov 8

9:11 am - 6:50 pm

ONT

SYD

40h 39m

1 stop

8:45 pm - 9:45 pm

SYD

ONT

18h 00m

1 stop

$1,064Multiple Airlines

Tue, Jun 30 - Tue, Jul 7

6:10 am - 6:45 am

ONT

MEL

31h 35m

2 stops

9:45 am - 9:57 pm

MEL

ONT

29h 12m

2 stops

$1,087American Airlines

Thu, Jun 4 - Fri, Jun 12

6:53 pm - 6:30 am

ONT

BNE

18h 37m

1 stop

11:40 am - 9:57 am

BNE

ONT

16h 17m

1 stop

$1,108United Airlines

Fri, Oct 30 - Fri, Nov 6

6:53 pm - 6:30 am

ONT

BNE

18h 37m

1 stop

11:40 am - 12:20 pm

BNE

ONT

18h 40m

1 stop

$1,109United Airlines

Mon, Oct 26 - Mon, Nov 23

6:39 pm - 6:55 am

ONT

SYD

19h 16m

1 stop

10:20 am - 12:12 pm

SYD

ONT

18h 52m

1 stop

$1,109Air New Zealand

Tue, Jun 9 - Wed, Jun 17

6:00 am - 6:45 pm

ONT

PER

44h 45m

2 stops

10:45 pm - 10:39 pm

PER

ONT

39h 54m

2 stops

$1,476Qatar Airways

Mon, Nov 16 - Mon, Feb 8

12:00 pm - 6:45 pm

ONT

PER

38h 45m

2 stops

10:45 pm - 10:39 pm

PER

ONT

39h 54m

2 stops

$1,516Qatar Airways

Sat, Nov 14 - Mon, Feb 8

7:20 am - 11:05 am

ONT

CNS

34h 45m

2 stops

9:25 am - 6:22 pm

CNS

ONT

50h 57m

2 stops

$1,715American Airlines

Mon, Oct 26 - Tue, Nov 10

United Airlines flights from Ontario to Australia

Our best United Airlines deals on Ontario to Australia flight tickets

United Airlines

May 24

ONT6:39 pmOntario

19h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 8

SYD10:20 amSydney Kingsford Smith

18h 52m

1 stop

ONT12:12 pmOntario

$1,096

United Airlines

May 24

ONT6:39 pmOntario

19h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 8

SYD10:20 amSydney Kingsford Smith

18h 52m

1 stop

ONT12:12 pmOntario

$1,100

United Airlines

May 24

ONT6:39 pmOntario

19h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 8

SYD10:20 amSydney Kingsford Smith

18h 52m

1 stop

ONT12:12 pmOntario

$1,101

Air New Zealand flights from Ontario to Australia

Our best Air New Zealand deals on Ontario to Australia flight tickets

Air New Zealand

Jun 9

ONT6:39 pmOntario

19h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

Jun 17

SYD10:20 amSydney Kingsford Smith

18h 52m

1 stop

ONT12:12 pmOntario

$1,109

Air New Zealand

Aug 5

ONT6:39 pmOntario

19h 16m

1 stop

SYD6:55 amSydney Kingsford Smith

Aug 12

SYD10:20 amSydney Kingsford Smith

18h 52m

1 stop

ONT12:12 pmOntario

$1,112

Air New Zealand

Oct 25

ONT6:53 pmOntario

20h 22m

1 stop

SYD9:15 amSydney Kingsford Smith

Nov 1

SYD12:10 pmSydney Kingsford Smith

16h 47m

1 stop

ONT10:57 amOntario

$1,113

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 9/3

9:31 am-6:50 pm

1 stop40h 19m

Sydney Kingsford Smith

Sun 9/20

8:45 pm-10:10 pm

1 stop18h 25m

$1,041

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 10/26

7:00 am-7:45 pm

1 stop18h 45m

Sydney Kingsford Smith

Sun 11/8

9:40 pm-9:32 pm

1 stop18h 52m

$1,047

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 6/30

9:11 am-6:50 pm

1 stop40h 39m

Sydney Kingsford Smith

Tue 7/7

8:45 pm-9:45 pm

1 stop18h 00m

$1,064

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Thu 6/4

6:10 am-6:45 am

2 stops31h 35m

Melbourne

Fri 6/12

9:45 am-9:57 pm

2 stops29h 12m

$1,087

Quickest round-trip

OntarioBrisbane

ONT - BNE

ONTBNE

Ontario

Fri 10/30

6:53 pm-6:30 am

1 stop18h 37m

Brisbane

Fri 11/6

11:40 am-9:57 am

1 stop16h 17m

$1,108

OntarioBrisbane

ONT - BNE

ONTBNE

Ontario

Mon 10/26

6:53 pm-6:30 am

1 stop18h 37m

Brisbane

Mon 11/23

11:40 am-12:20 pm

1 stop18h 40m

$1,109

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 6/9

6:39 pm-6:55 am

1 stop19h 16m

Sydney Kingsford Smith

Wed 6/17

10:20 am-12:12 pm

1 stop18h 52m

$1,109

OntarioPerth

ONT - PER

ONTPER

Ontario

Mon 11/16

6:00 am-6:45 pm

2 stops44h 45m

Perth

Mon 2/8

10:45 pm-10:39 pm

2 stops39h 54m

$1,476

OntarioPerth

ONT - PER

ONTPER

Ontario

Sat 11/14

12:00 pm-6:45 pm

2 stops38h 45m

Perth

Mon 2/8

10:45 pm-10:39 pm

2 stops39h 54m

$1,516

OntarioCairns

ONT - CNS

ONTCNS

Ontario

Mon 10/26

7:20 am-11:05 am

2 stops34h 45m

Cairns

Tue 11/10

9:25 am-6:22 pm

2 stops50h 57m

$1,715

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.