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

Hawaiian Airlines, United Airlines, and Alaska Airlines are the most popular carriers operating from Australia to Ontario

Which airlines fly to Ontario?

Qantas Airways, Fiji Airways and United Airlines are the top three most popular airlines that fly to Ontario from Australia 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 Ontario. Keep in mind that there are 21 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ontario?

Flight times from Australia to Ontario vary, but if you’re flying out of Brisbane and flying into Los Angeles (one of the most popular routes), then the duration is 12h 50m on average. Another popular route from Australia to Ontario is flying from Sydney to Los Angeles, which will take roughly 13h 40m. Keep in mind that layovers or delays could extend your travel time.

When did momondo last update prices for flights from Australia to Ontario Airport?

Prices for flights from Australia to Ontario Airport refresh daily.

How many operators does momondo search for flights from Australia to Ontario Airport?

The number of operators available for flights from Australia to Ontario Airport is 1 as of November 2025.

How old do you have to be to fly from Australia to Ontario Airport?

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 Australia to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$643 Cheap Flights from Australia to Ontario in 2025/26

1 adult

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Find the cheapest flights from Australia to Los Angeles

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Recent return flight deals from Australia to Los Angeles

Enter your travel dates to find the best prices.

21:40 - 20:23SYD-ONT

17h 43m1 stop

08:13 - 19:45ONT-SYD

40h 32m1 stop

$1,051Alaska Airlines

Find Deal

Thu, 4 Dec - Wed, 11 Feb

21:40 - 20:23SYD-ONT

17h 43m1 stop

08:00 - 19:45ONT-SYD

40h 45m1 stop

$1,127Alaska Airlines

Find Deal

Thu, 4 Dec - Wed, 31 Dec

12:10 - 12:17SYD-ONT

18h 07m1 stop

13:45 - 09:15ONT-SYD

49h 30m2 stops

$1,141United Airlines

Find Deal

Thu, 12 Mar - Mon, 16 Mar

12:10 - 12:43SYD-ONT

42h 33m2 stops

13:45 - 09:15ONT-SYD

49h 30m2 stops

$1,144United Airlines

Find Deal

Thu, 12 Mar - Mon, 16 Mar

21:40 - 20:23SYD-ONT

17h 43m1 stop

08:00 - 19:45ONT-SYD

40h 45m1 stop

$1,165Hawaiian Airlines

Find Deal

Tue, 2 Dec - Wed, 31 Dec

21:40 - 20:31SYD-ONT

17h 51m1 stop

08:00 - 19:45ONT-SYD

40h 45m1 stop

$1,271Hawaiian Airlines

Find Deal

Sat, 22 Nov - Mon, 22 Dec

23:20 - 17:50MEL-ONT

36h 30m1 stop

23:50 - 12:05ONT-MEL

42h 15m1 stop

$1,819China Airlines

Find Deal

Wed, 18 Mar - Sun, 22 Mar

23:20 - 17:50MEL-ONT

36h 30m1 stop

23:50 - 12:05ONT-MEL

42h 15m1 stop

$1,825China Airlines

Find Deal

Wed, 18 Mar - Sun, 22 Mar

19:50 - 23:56BNE-ONT

46h 06m3 stops

16:03 - 12:10ONT-BNE

26h 07m3 stops

$1,989Multiple Airlines

Find Deal

Wed, 28 Jan - Sat, 7 Feb

08:20 - 18:00OOL-ONT

50h 40m2 stops

00:45 - 20:50ONT-OOL

51h 05m2 stops

$2,169Multiple Airlines

Find Deal

Mon, 27 Apr - Sun, 26 Jul

Alaska Airlines flights from Australia to Ontario

Our best Alaska Airlines deals on Australia to Ontario flight tickets

Alaska Airlines

4 Dec

SYD21:40Sydney Kingsford Smith

17h 43m

1 stop

ONT20:23Ontario

11 Feb

ONT08:13Ontario

40h 32m

1 stop

SYD19:45Sydney Kingsford Smith

$1,051

Find similar

Alaska Airlines

4 Dec

SYD21:40Sydney Kingsford Smith

17h 43m

1 stop

ONT20:23Ontario

31 Dec

ONT08:00Ontario

40h 45m

1 stop

SYD19:45Sydney Kingsford Smith

$1,127

Find similar

Alaska Airlines

24 Jan

SYD21:40Sydney Kingsford Smith

19h 48m

1 stop

ONT22:28Ontario

27 Feb

ONT09:50Ontario

38h 55m

1 stop

SYD19:45Sydney Kingsford Smith

$1,283

Find similar

United Airlines flights from Australia to Ontario

Our best United Airlines deals on Australia to Ontario flight tickets

United Airlines

10 Nov

SYD12:10Sydney Kingsford Smith

19h 27m

1 stop

ONT12:37Ontario

23 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

$1,135

Find similar

United Airlines

3 Nov

SYD12:10Sydney Kingsford Smith

19h 27m

1 stop

ONT12:37Ontario

16 Nov

ONT18:38Ontario

19h 37m

1 stop

SYD09:15Sydney Kingsford Smith

$1,139

Find similar

United Airlines

12 Mar

SYD12:10Sydney Kingsford Smith

18h 07m

1 stop

ONT12:17Ontario

16 Mar

ONT13:45Ontario

49h 30m

2 stops

SYD09:15Sydney Kingsford Smith

$1,141

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 4/12

21:40-20:23

1 stop17h 43m

Ontario

Wed 11/2

08:13-19:45

1 stop40h 32m

$1,051

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 4/12

21:40-20:23

1 stop17h 43m

Ontario

Wed 31/12

08:00-19:45

1 stop40h 45m

$1,127

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 12/3

12:10-12:17

1 stop18h 07m

Ontario

Mon 16/3

13:45-09:15

2 stops49h 30m

$1,141

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 12/3

12:10-12:43

2 stops42h 33m

Ontario

Mon 16/3

13:45-09:15

2 stops49h 30m

$1,144

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 2/12

21:40-20:23

1 stop17h 43m

Ontario

Wed 31/12

08:00-19:45

1 stop40h 45m

$1,165

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sat 22/11

21:40-20:31

1 stop17h 51m

Ontario

Mon 22/12

08:00-19:45

1 stop40h 45m

$1,271

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Wed 18/3

23:20-17:50

1 stop36h 30m

Ontario

Sun 22/3

23:50-12:05

1 stop42h 15m

$1,819

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Wed 18/3

23:20-17:50

1 stop36h 30m

Ontario

Sun 22/3

23:50-12:05

1 stop42h 15m

$1,825

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Wed 28/1

19:50-23:56

3 stops46h 06m

Ontario

Sat 7/2

16:03-12:10

3 stops26h 07m

$1,989

CoolangattaOntario

OOL - ONT

OOLONT

Coolangatta Gold Coast

Mon 27/4

08:20-18:00

2 stops50h 40m

Ontario

Sun 26/7

00:45-20:50

2 stops51h 05m

$2,169

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 Australia to Ontario

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

Other information

What is the cheapest day to depart on your flight to Ontario?

According to our data, Monday is the cheapest day to fly to Ontario from Australia. The lowest ticket price found for a Monday departure recently was $1,409. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Wednesday is the most expensive day to depart from Australia because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,852.

What is the cheapest time of day to depart on your flight to Ontario?

Flying to Ontario from Australia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,649 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $1,677. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Australia to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Australia to Ontario

Direct flights	None

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

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When did momondo last update prices for flights from Australia to Ontario Airport?
Prices for flights from Australia to Ontario Airport refresh daily.
How many operators does momondo search for flights from Australia to Ontario Airport?
The number of operators available for flights from Australia to Ontario Airport is 1 as of November 2025.
How old do you have to be to fly from Australia to Ontario Airport?
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 Australia to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Australia to Ontario

Compare and see reviews for airlines that fly from Australia to Ontario with momondo

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $1,065	Free cancellation	Rating 7.4 8,997 reviews		Search United Airlines flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Australia to Ontario . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Australia to Ontario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Australia to Ontario?

Once you have performed a search for Australia to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Australia to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Australia to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.