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 45% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 11 different airlines that fly to Australia on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Lufthansa, and American Airlines are the most popular carriers operating 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.

$709 Cheap Flights from Ontario to Australia in 2025/26

1 adult

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Find the cheapest flights from Ontario to Australia

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One-way

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Cheap return flights

Enter your travel dates to find the best prices.

13:20 - 08:30ONT-SYD

24h 10m2 stops

10:40 - 23:58SYD-ONT

32h 18m2 stops

$1,456Delta

Find Deal

Fri, 28 Nov - Fri, 5 Dec

18:38 - 09:15ONT-SYD

19h 37m1 stop

12:10 - 12:37SYD-ONT

19h 27m1 stop

$1,465United Airlines

Find Deal

Mon, 17 Nov - Fri, 21 Nov

09:50 - 19:45ONT-SYD

39h 55m1 stop

21:40 - 21:55SYD-ONT

17h 15m1 stop

$1,556Hawaiian Airlines

Find Deal

Thu, 26 Mar - Sun, 5 Apr

08:13 - 19:45ONT-SYD

40h 32m1 stop

21:40 - 21:55SYD-ONT

18h 15m1 stop

$1,645Alaska Airlines

Find Deal

Wed, 11 Feb - Sun, 8 Mar

09:50 - 19:45ONT-SYD

39h 55m1 stop

21:40 - 21:55SYD-ONT

17h 15m1 stop

$1,665Hawaiian Airlines

Find Deal

Thu, 26 Mar - Sun, 5 Apr

08:13 - 19:45ONT-SYD

40h 32m1 stop

21:40 - 22:28SYD-ONT

19h 48m1 stop

$1,760Alaska Airlines

Find Deal

Fri, 9 Jan - Thu, 22 Jan

07:50 - 23:35ONT-MEL

44h 45m2 stops

06:00 - 20:23MEL-ONT

33h 23m2 stops

$2,230Multiple Airlines

Find Deal

Sun, 30 Nov - Sun, 7 Dec

07:50 - 08:05ONT-MEL

53h 15m2 stops

12:00 - 22:28MEL-ONT

29h 28m2 stops

$2,312Multiple Airlines

Find Deal

Thu, 27 Nov - Sat, 10 Jan

12:49 - 09:30ONT-MEL

25h 41m2 stops

12:00 - 18:20MEL-ONT

25h 20m2 stops

$2,499American Airlines

Find Deal

Fri, 28 Nov - Sat, 10 Jan

15:09 - 11:00ONT-CNS

25h 51m2 stops

15:35 - 18:40CNS-ONT

45h 05m2 stops

$4,449American Airlines

Find Deal

Wed, 11 Feb - Sun, 15 Feb

Delta flights from Ontario to Australia

Our best Delta deals on Ontario to Australia flight tickets

Delta

28 Nov

ONT13:20Ontario

24h 10m

2 stops

SYD08:30Sydney Kingsford Smith

5 Dec

SYD10:40Sydney Kingsford Smith

32h 18m

2 stops

ONT23:58Ontario

$1,456

Find similar

Delta

29 Nov

ONT06:00Ontario

31h 30m

2 stops

SYD08:30Sydney Kingsford Smith

6 Dec

SYD10:40Sydney Kingsford Smith

30h 15m

2 stops

ONT21:55Ontario

$1,766

Find similar

United Airlines flights from Ontario to Australia

Our best United Airlines deals on Ontario to Australia flight tickets

United Airlines

3 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

16 Nov

SYD12:10Sydney Kingsford Smith

19h 27m

1 stop

ONT12:37Ontario

$1,448

Find similar

United Airlines

3 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

16 Nov

SYD12:10Sydney Kingsford Smith

19h 27m

1 stop

ONT12:37Ontario

$1,451

Find similar

United Airlines

17 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

21 Nov

SYD12:10Sydney Kingsford Smith

19h 27m

1 stop

ONT12:37Ontario

$1,465

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 28/11

13:20-08:30

2 stops24h 10m

Sydney Kingsford Smith

Fri 5/12

10:40-23:58

2 stops32h 18m

$1,456

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 17/11

18:38-09:15

1 stop19h 37m

Sydney Kingsford Smith

Fri 21/11

12:10-12:37

1 stop19h 27m

$1,465

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 26/3

09:50-19:45

1 stop39h 55m

Sydney Kingsford Smith

Sun 5/4

21:40-21:55

1 stop17h 15m

$1,556

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 11/2

08:13-19:45

1 stop40h 32m

Sydney Kingsford Smith

Sun 8/3

21:40-21:55

1 stop18h 15m

$1,645

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 26/3

09:50-19:45

1 stop39h 55m

Sydney Kingsford Smith

Sun 5/4

21:40-21:55

1 stop17h 15m

$1,665

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 9/1

08:13-19:45

1 stop40h 32m

Sydney Kingsford Smith

Thu 22/1

21:40-22:28

1 stop19h 48m

$1,760

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Sun 30/11

07:50-23:35

2 stops44h 45m

Melbourne

Sun 7/12

06:00-20:23

2 stops33h 23m

$2,230

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Thu 27/11

07:50-08:05

2 stops53h 15m

Melbourne

Sat 10/1

12:00-22:28

2 stops29h 28m

$2,312

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Fri 28/11

12:49-09:30

2 stops25h 41m

Melbourne

Sat 10/1

12:00-18:20

2 stops25h 20m

$2,499

OntarioCairns

ONT - CNS

ONTCNS

Ontario

Wed 11/2

15:09-11:00

2 stops25h 51m

Cairns

Sun 15/2

15:35-18:40

2 stops45h 05m

$4,449

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 31% 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

Direct flights	None

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

Search flight deals

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.