When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Ontario Airport?

Prices for flights from Sydney Kingsford Smith Airport to Ontario Airport refresh daily.

How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Ontario Airport?

The number of operators available for flights from Sydney Kingsford Smith Airport to Ontario Airport is 1 as of September 2026.

How old do you have to be to fly from Sydney Kingsford Smith Airport to Ontario Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport 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.

$682 Cheap Flights from Sydney to Ontario in 2026/27

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Cheap return flights

Enter your travel dates to find the best prices.

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

16:17 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

$1,192Virgin Australia

Tue, 3 Nov - Tue, 24 Nov

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

18h 39m1 stop San Francisco

16:17 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

$1,192Virgin Australia

Thu, 29 Oct - Tue, 10 Nov

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

16:17 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

$1,192Virgin Australia

Wed, 4 Nov - Wed, 18 Nov

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

16:17 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

22h 03m1 stop San Francisco

$1,192Virgin Australia

Wed, 11 Nov - Wed, 18 Nov

11:50 - 09:47SYD Sydney Kingsford Smith-ONT Ontario

16h 57m1 stop San Francisco

18:35 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

19h 45m1 stop San Francisco

$1,192Virgin Australia

Tue, 26 Jan - Tue, 16 Feb

11:50 - 12:20SYD Sydney Kingsford Smith-ONT Ontario

18h 30m1 stop San Francisco

18:53 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

20h 27m1 stop San Francisco

$1,192Virgin Australia

Thu, 18 Mar - Sun, 21 Mar

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

18:37 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

19h 43m1 stop San Francisco

$1,192Virgin Australia

Mon, 9 Nov - Mon, 23 Nov

11:50 - 09:47SYD Sydney Kingsford Smith-ONT Ontario

16h 57m1 stop San Francisco

18:53 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

19h 27m1 stop San Francisco

$1,192Virgin Australia

Thu, 21 Jan - Wed, 27 Jan

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

18:40 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

19h 40m1 stop San Francisco

$1,194United Airlines

Thu, 12 Nov - Sun, 13 Dec

11:50 - 12:29SYD Sydney Kingsford Smith-ONT Ontario

19h 39m1 stop San Francisco

18:40 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

19h 40m1 stop San Francisco

$1,194United Airlines

Tue, 10 Nov - Sun, 13 Dec

Cheap last-minute flights

Enter your travel dates to find the best prices.

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

16:03 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,177Lufthansa

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

18:32 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

19h 23m1 stop San Francisco

$1,181Lufthansa

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

16:03 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,181Lufthansa

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

16:03 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,185Lufthansa

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

16:03 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,191United Airlines

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

16:03 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,194United Airlines

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

18:40 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

19h 40m1 stop San Francisco

$1,194Virgin Australia

Mon, 5 Oct - Mon, 7 Dec

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

18:32 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

19h 23m1 stop San Francisco

$1,194Virgin Australia

Mon, 5 Oct - Sun, 18 Oct

11:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

16:03 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,194Lufthansa

Mon, 5 Oct - Sun, 18 Oct

10:20 - 10:23SYD Sydney Kingsford Smith-ONT Ontario

17h 03m1 stop San Francisco

13:22 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

48h 33m2 stops Denver Intl San Francisco

$1,195United Airlines

Wed, 30 Sep - Sat, 3 Oct

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Virgin Australia flights from Sydney to Ontario

Our best Virgin Australia deals on Sydney to Ontario flight tickets

Virgin Australia

29 Oct

SYD11:50Sydney Kingsford Smith

18h 39m

1 stop

ONT12:29Ontario

10 Nov

ONT16:17Ontario

22h 03m

1 stop

SYD09:20Sydney Kingsford Smith

$1,192

Virgin Australia

27 Oct

SYD11:50Sydney Kingsford Smith

18h 39m

1 stop

ONT12:29Ontario

4 Nov

ONT16:17Ontario

22h 03m

1 stop

SYD09:20Sydney Kingsford Smith

$1,199

Virgin Australia

7 Nov

SYD11:50Sydney Kingsford Smith

19h 39m

1 stop

ONT12:29Ontario

11 Nov

ONT16:17Ontario

22h 03m

1 stop

SYD09:20Sydney Kingsford Smith

$1,262

United Airlines flights from Sydney to Ontario

Our best United Airlines deals on Sydney to Ontario flight tickets

United Airlines

5 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

18 Oct

ONT16:03Ontario

21h 52m

1 stop

SYD07:55Sydney Kingsford Smith

$1,191

United Airlines

29 Oct

SYD11:50Sydney Kingsford Smith

21h 43m

1 stop

ONT15:33Ontario

2 Nov

ONT09:25Ontario

28h 55m

1 stop

SYD09:20Sydney Kingsford Smith

$1,194

United Airlines

29 Oct

SYD11:50Sydney Kingsford Smith

42h 40m

2 stops

ONT12:30Ontario

2 Nov

ONT05:00Ontario

33h 20m

2 stops

SYD09:20Sydney Kingsford Smith

$1,195

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 3/11

11:50-12:29

1 stop19h 39m

Ontario

Tue 24/11

16:17-09:20

1 stop22h 03m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 29/10

11:50-12:29

1 stop18h 39m

Ontario

Tue 10/11

16:17-09:20

1 stop22h 03m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 4/11

11:50-12:29

1 stop19h 39m

Ontario

Wed 18/11

16:17-09:20

1 stop22h 03m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 11/11

11:50-12:29

1 stop19h 39m

Ontario

Wed 18/11

16:17-09:20

1 stop22h 03m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 26/1

11:50-09:47

1 stop16h 57m

Ontario

Tue 16/2

18:35-09:20

1 stop19h 45m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 18/3

11:50-12:20

1 stop18h 30m

Ontario

Sun 21/3

18:53-09:20

1 stop20h 27m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 9/11

11:50-12:29

1 stop19h 39m

Ontario

Mon 23/11

18:37-09:20

1 stop19h 43m

$1,192

Fastest return journey

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 21/1

11:50-09:47

1 stop16h 57m

Ontario

Wed 27/1

18:53-09:20

1 stop19h 27m

$1,192

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 12/11

11:50-12:29

1 stop19h 39m

Ontario

Sun 13/12

18:40-09:20

1 stop19h 40m

$1,194

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 10/11

11:50-12:29

1 stop19h 39m

Ontario

Sun 13/12

18:40-09:20

1 stop19h 40m

$1,194

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 Sydney 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

What is the cheapest airline that flies from Sydney Kingsford Smith to Ontario?

United Airlines is the most popular carrier operating from Sydney Kingsford Smith 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 Sydney 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 13 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Sydney to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Sydney to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Sydney to Ontario (SYD to ONT) flight deals and tips

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

Best price found	$682
Fastest flight time	16h 48m
Direct flights	None

The best one-way flight to Ontario from Sydney in the past 72 hours is $682. The best return flight deal from Sydney to Ontario found on momondo in the last 72 hours is $1,192.

The fastest flight from Sydney to Ontario takes 16h 48m

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

Search flight deals

Frequently asked questions about flying from Sydney to Ontario

How far is Sydney Kingsford Smith to Ontario by plane?
There are 12114.1 km between Sydney Kingsford Smith and Ontario. By plane, this route typically takes 16h 48m.
When did momondo last update prices for flights from Sydney Kingsford Smith Airport to Ontario Airport?
Prices for flights from Sydney Kingsford Smith Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Sydney Kingsford Smith Airport to Ontario Airport?
The number of operators available for flights from Sydney Kingsford Smith Airport to Ontario Airport is 1 as of September 2026.
How old do you have to be to fly from Sydney Kingsford Smith Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Sydney Kingsford Smith Airport 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.
What is the most popular airline from Sydney to Ontario?
momondo data reveals that the most frequently booked airline on the route from Sydney to Ontario is United Airlines, representing 100% of all bookings.

Best airlines flying from Sydney to Ontario

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

Airline	Rating	Free cancellation	Price
United Airlines	PriceFrom $1,050	Free cancellation	Rating 7.4 10,256 reviews		Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sydney to Ontario. momondo saves you time and could save you money on your trip.

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

Flights from Sydney to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Sydney and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Sydney to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.