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

American Airlines, Hawaiian Airlines, and United Airlines are the most popular carriers 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 45% of people opting to fly with this airline when travelling to Australia. Keep in mind that there are 10 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.

$641 Cheap Flights from Ontario to Australia in 2025

1 adult

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Find the cheapest flights from Ontario to Australia

Round-trip

One-way

Last minute

Cheap return flights

06:00 - 06:55ONT-SYD

29h 55m1 stop

13:20 - 23:43SYD-ONT

28h 23m1 stop

$1,419American Airlines

Find Deal

Thu, 19 Feb - Thu, 12 Mar

16:47 - 09:00ONT-SYD

21h 13m2 stops

11:20 - 18:20SYD-ONT

26h 00m2 stops

$1,438American Airlines

Find Deal

Sun, 2 Nov - Tue, 25 Nov

10:09 - 19:45ONT-SYD

40h 36m1 stop

21:40 - 20:23SYD-ONT

17h 43m1 stop

$1,582Alaska Airlines

Find Deal

Tue, 30 Sep - Sat, 13 Dec

08:35 - 19:45ONT-SYD

18h 10m1 stop

16:20 - 21:10SYD-ONT

21h 50m1 stop

$1,608

Find Deal

Wed, 10 Sep - Wed, 17 Sep

18:38 - 07:30ONT-BNE

18h 52m1 stop

11:40 - 12:37BNE-ONT

18h 57m1 stop

$1,629United Airlines

Find Deal

Mon, 3 Nov - Sun, 16 Nov

11:07 - 19:45ONT-SYD

38h 38m1 stop

21:40 - 11:05SYD-ONT

31h 25m2 stops

$1,631Alaska Airlines

Find Deal

Fri, 17 Oct - Tue, 28 Oct

18:38 - 07:30ONT-BNE

18h 52m1 stop

11:40 - 17:34BNE-ONT

23h 54m1 stop

$1,631United Airlines

Find Deal

Mon, 3 Nov - Sun, 16 Nov

09:50 - 19:45ONT-SYD

38h 55m1 stop

21:40 - 21:55SYD-ONT

19h 15m1 stop

$1,772Hawaiian Airlines

Find Deal

Mon, 19 Jan - Sun, 1 Feb

00:10 - 05:30ONT-MEL

35h 20m3 stops

01:30 - 17:50MEL-ONT

34h 20m2 stops

$1,800

Find Deal

Thu, 23 Oct - Sun, 26 Oct

10:09 - 18:45ONT-SYD

39h 36m1 stop

21:40 - 17:14SYD-ONT

37h 34m1 stop

$1,839Hawaiian Airlines

Find Deal

Fri, 3 Oct - Sun, 26 Oct

American Airlines flights from Ontario to Australia

Our best American Airlines deals on Ontario to Australia flight tickets

American Airlines

31 Aug

ONT14:31Ontario

23h 24m

1 stop

SYD06:55Sydney Kingsford Smith

14 Sept

SYD12:10Sydney Kingsford Smith

27h 06m

1 stop

ONT22:16Ontario

$1,415

Find similar

American Airlines

19 Feb

ONT06:00Ontario

29h 55m

1 stop

SYD06:55Sydney Kingsford Smith

12 Mar

SYD13:20Sydney Kingsford Smith

28h 23m

1 stop

ONT23:43Ontario

$1,419

Find similar

American Airlines

2 Nov

ONT16:47Ontario

21h 13m

2 stops

SYD09:00Sydney Kingsford Smith

25 Nov

SYD11:20Sydney Kingsford Smith

26h 00m

2 stops

ONT18:20Ontario

$1,438

Find similar

Alaska Airlines flights from Ontario to Australia

Our best Alaska Airlines deals on Ontario to Australia flight tickets

Alaska Airlines

30 Sept

ONT10:09Ontario

40h 36m

1 stop

SYD19:45Sydney Kingsford Smith

13 Dec

SYD21:40Sydney Kingsford Smith

17h 43m

1 stop

ONT20:23Ontario

$1,582

Find similar

Alaska Airlines

17 Oct

ONT11:07Ontario

38h 38m

1 stop

SYD19:45Sydney Kingsford Smith

28 Oct

SYD21:40Sydney Kingsford Smith

31h 25m

2 stops

ONT11:05Ontario

$1,631

Find similar

Alaska Airlines

18 Nov

ONT11:59Ontario

36h 46m

2 stops

SYD19:45Sydney Kingsford Smith

4 Dec

SYD21:40Sydney Kingsford Smith

17h 43m

1 stop

ONT20:23Ontario

$1,634

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Thu 19/2

06:00-06:55

1 stop29h 55m

Sydney Kingsford Smith

Thu 12/3

13:20-23:43

1 stop28h 23m

$1,419

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Sun 2/11

16:47-09:00

2 stops21h 13m

Sydney Kingsford Smith

Tue 25/11

11:20-18:20

2 stops26h 00m

$1,438

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Tue 30/9

10:09-19:45

1 stop40h 36m

Sydney Kingsford Smith

Sat 13/12

21:40-20:23

1 stop17h 43m

$1,582

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Wed 10/9

08:35-19:45

1 stop18h 10m

Sydney Kingsford Smith

Wed 17/9

16:20-21:10

1 stop21h 50m

$1,608

OntarioBrisbane

ONT - BNE

ONTBNE

Ontario

Mon 3/11

18:38-07:30

1 stop18h 52m

Brisbane

Sun 16/11

11:40-12:37

1 stop18h 57m

$1,629

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 17/10

11:07-19:45

1 stop38h 38m

Sydney Kingsford Smith

Tue 28/10

21:40-11:05

2 stops31h 25m

$1,631

OntarioBrisbane

ONT - BNE

ONTBNE

Ontario

Mon 3/11

18:38-07:30

1 stop18h 52m

Brisbane

Sun 16/11

11:40-17:34

1 stop23h 54m

$1,631

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Mon 19/1

09:50-19:45

1 stop38h 55m

Sydney Kingsford Smith

Sun 1/2

21:40-21:55

1 stop19h 15m

$1,772

OntarioMelbourne

ONT - MEL

ONTMEL

Ontario

Thu 23/10

00:10-05:30

3 stops35h 20m

Melbourne

Sun 26/10

01:30-17:50

2 stops34h 20m

$1,800

OntarioSydney

ONT - SYD

ONTSYD

Ontario

Fri 3/10

10:09-18:45

1 stop39h 36m

Sydney Kingsford Smith

Sun 26/10

21:40-17:14

1 stop37h 34m

$1,839

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.