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

United Airlines is the most popular carrier operating from Ontario to Australia

Which 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 50% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 9 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 refresh daily.

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 stopovers. 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 travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$792 Cheap Flights from Ontario to Australia in 2026

1 adult

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Find the cheapest flights from Ontario to Australia

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:20 - 18:50

ONT

SYD

18h 30m

1 stop

20:45 - 21:20

SYD

ONT

17h 35m

1 stop

$1,445Multiple Airlines

Wed, 26 Aug - Fri, 4 Sep

07:00 - 19:45

ONT

SYD

18h 45m

1 stop

21:40 - 21:32

SYD

ONT

18h 52m

1 stop

$1,470Multiple Airlines

Mon, 26 Oct - Sun, 8 Nov

07:20 - 18:50

ONT

SYD

18h 30m

1 stop

20:45 - 21:20

SYD

ONT

17h 35m

1 stop

$1,504Multiple Airlines

Fri, 28 Aug - Sun, 6 Sep

07:00 - 19:45

ONT

SYD

18h 45m

1 stop

21:40 - 21:32

SYD

ONT

18h 52m

1 stop

$1,520Multiple Airlines

Mon, 26 Oct - Sat, 14 Nov

06:10 - 06:45

ONT

MEL

31h 35m

2 stops

09:45 - 21:57

MEL

ONT

29h 12m

2 stops

$1,527American Airlines

Thu, 4 Jun - Fri, 12 Jun

09:40 - 18:50

ONT

SYD

40h 10m

1 stop

20:45 - 22:17

SYD

ONT

18h 32m

1 stop

$1,528Multiple Airlines

Thu, 4 Jun - Sun, 7 Jun

18:53 - 06:30

ONT

BNE

18h 37m

1 stop

11:40 - 12:20

BNE

ONT

18h 40m

1 stop

$1,558United Airlines

Mon, 26 Oct - Mon, 23 Nov

18:39 - 06:55

ONT

SYD

19h 16m

1 stop

10:20 - 12:12

SYD

ONT

18h 52m

1 stop

$1,558Air New Zealand

Wed, 29 Jul - Tue, 4 Aug

06:02 - 07:00

ONT

SYD

30h 58m

1 stop

12:10 - 09:57

SYD

ONT

16h 47m

1 stop

$1,559United Airlines

Sun, 25 Oct - Wed, 11 Nov

13:18 - 11:10

ONT

CNS

28h 52m

3 stops

06:00 - 20:42

CNS

ONT

31h 42m

3 stops

$4,939Air Canada

Fri, 3 Jul - Fri, 10 Jul

Air New Zealand flights from Ontario to Australia

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

Air New Zealand

29 July

ONT18:39Ontario

19h 16m

1 stop

SYD06:55Sydney Kingsford Smith

4 Aug

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

$1,558

Air New Zealand

5 Aug

ONT18:39Ontario

19h 16m

1 stop

SYD06:55Sydney Kingsford Smith

12 Aug

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

$1,562

Air New Zealand

25 Oct

ONT18:53Ontario

20h 22m

1 stop

SYD09:15Sydney Kingsford Smith

1 Nov

SYD12:10Sydney Kingsford Smith

16h 47m

1 stop

ONT10:57Ontario

$1,563

United Airlines flights from Ontario to Australia

Our best United Airlines deals on Ontario to Australia flight tickets

United Airlines

24 May

ONT18:39Ontario

19h 16m

1 stop

SYD06:55Sydney Kingsford Smith

8 June

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

$1,539

United Airlines

24 May

ONT18:39Ontario

19h 16m

1 stop

SYD06:55Sydney Kingsford Smith

8 June

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

$1,545

United Airlines

24 May

ONT18:39Ontario

19h 16m

1 stop

SYD06:55Sydney Kingsford Smith

8 June

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

$1,546

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 26/8

07:20-18:50

1 stop18h 30m

Sydney Kingsford Smith

Fri 4/9

20:45-21:20

1 stop17h 35m

$1,445

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 26/10

07:00-19:45

1 stop18h 45m

Sydney Kingsford Smith

Sun 8/11

21:40-21:32

1 stop18h 52m

$1,470

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 28/8

07:20-18:50

1 stop18h 30m

Sydney Kingsford Smith

Sun 6/9

20:45-21:20

1 stop17h 35m

$1,504

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 26/10

07:00-19:45

1 stop18h 45m

Sydney Kingsford Smith

Sat 14/11

21:40-21:32

1 stop18h 52m

$1,520

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Thu 4/6

06:10-06:45

2 stops31h 35m

Melbourne

Fri 12/6

09:45-21:57

2 stops29h 12m

$1,527

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 4/6

09:40-18:50

1 stop40h 10m

Sydney Kingsford Smith

Sun 7/6

20:45-22:17

1 stop18h 32m

$1,528

OntarioBrisbane

ONT - BNE

ONTBNE

Ontario

Mon 26/10

18:53-06:30

1 stop18h 37m

Brisbane

Mon 23/11

11:40-12:20

1 stop18h 40m

$1,558

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 29/7

18:39-06:55

1 stop19h 16m

Sydney Kingsford Smith

Tue 4/8

10:20-12:12

1 stop18h 52m

$1,558

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 25/10

06:02-07:00

1 stop30h 58m

Sydney Kingsford Smith

Wed 11/11

12:10-09:57

1 stop16h 47m

$1,559

OntarioCairns

ONT - CNS

ONTCNS

Ontario

Fri 3/7

13:18-11:10

3 stops28h 52m

Cairns

Fri 10/7

06:00-20:42

3 stops31h 42m

$4,939

Flights are sorted by cheapest return 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 29% 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 refresh daily.
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 stopovers. 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 travel and health documents you'll need for your trip to Australia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Australia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Australia from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Australia quick and easy, saving you time and money.

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

Yes. All flights to Australia from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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.