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.

$678 Cheap Flights from Sydney to Ontario in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sydney to Los Angeles

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:40 - 16:23SYD Sydney Kingsford Smith-ONT Ontario

24h 43m2 stops Los Angeles Salt Lake City

06:00 - 08:30ONT Ontario-SYD Sydney Kingsford Smith

31h 30m2 stops Salt Lake City Los Angeles

$1,111Delta

Mon, 2 Nov - Mon, 9 Nov

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

$1,176Lufthansa

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

$1,183Lufthansa

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

$1,183Lufthansa

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

$1,184United Airlines

Mon, 5 Oct - Sun, 18 Oct

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

$1,184United Airlines

Mon, 2 Nov - Tue, 17 Nov

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

$1,187United Airlines

Thu, 8 Oct - Wed, 21 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

$1,187United Airlines

Mon, 5 Oct - Sun, 18 Oct

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

$1,187United Airlines

Mon, 2 Nov - Tue, 17 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

$1,189Virgin Australia

Mon, 8 Feb - Mon, 15 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

10:20 - 21:59SYD Sydney Kingsford Smith-ONT Ontario

52h 39m2 stops San Francisco Houston George Bush Intcntl

07:00 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

30h 55m2 stops Chicago O'Hare Intl San Francisco

$1,193United Airlines

Wed, 23 Sep - Wed, 30 Sep

10:20 - 18:16SYD Sydney Kingsford Smith-ONT Ontario

24h 56m1 stop San Francisco

13:52 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

24h 03m1 stop San Francisco

$1,193United Airlines

Wed, 23 Sep - Wed, 30 Sep

10:20 - 20:01SYD Sydney Kingsford Smith-ONT Ontario

26h 41m1 stop San Francisco

07:00 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

30h 55m2 stops Chicago O'Hare Intl San Francisco

$1,193United Airlines

Wed, 23 Sep - Wed, 30 Sep

10:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

11:10 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

26h 45m1 stop San Francisco

$1,193United Airlines

Thu, 24 Sep - Wed, 30 Sep

10:20 - 12:12SYD Sydney Kingsford Smith-ONT Ontario

18h 52m1 stop San Francisco

18:32 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

19h 23m1 stop San Francisco

$1,259Virgin Australia

Wed, 23 Sep - Thu, 24 Sep

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

17h 03m1 stop San Francisco

16:03 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

21h 52m1 stop San Francisco

$1,260Virgin Australia

Mon, 28 Sep - Thu, 1 Oct

10:20 - 12:12SYD Sydney Kingsford Smith-ONT Ontario

18h 52m1 stop San Francisco

05:00 - 06:55ONT Ontario-SYD Sydney Kingsford Smith

32h 55m2 stops Denver Intl San Francisco

$1,260United Airlines

Wed, 23 Sep - Thu, 24 Sep

10:20 - 22:59SYD Sydney Kingsford Smith-ONT Ontario

29h 39m1 stop San Francisco

09:25 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

28h 30m1 stop San Francisco

$1,262Virgin Australia

Sat, 26 Sep - Sun, 11 Oct

10:20 - 12:18SYD Sydney Kingsford Smith-ONT Ontario

18h 58m1 stop San Francisco

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

22h 03m1 stop San Francisco

$1,262Virgin Australia

Sun, 27 Sep - Mon, 2 Nov

10:20 - 17:51SYD Sydney Kingsford Smith-ONT Ontario

24h 31m1 stop San Francisco

06:00 - 07:55ONT Ontario-SYD Sydney Kingsford Smith

55h 55m2 stops Houston George Bush Intcntl San Francisco

$1,263United Airlines

Fri, 25 Sep - Sat, 10 Oct

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Delta flights from Sydney to Ontario

Our best Delta deals on Sydney to Ontario flight tickets

Delta

2 Nov

SYD10:40Sydney Kingsford Smith

24h 43m

2 stops

ONT16:23Ontario

9 Nov

ONT06:00Ontario

31h 30m

2 stops

SYD08:30Sydney Kingsford Smith

$1,111

Delta

10 Nov

SYD10:40Sydney Kingsford Smith

32h 09m

2 stops

ONT23:49Ontario

29 Nov

ONT06:00Ontario

31h 30m

2 stops

SYD08:30Sydney Kingsford Smith

$1,431

Lufthansa flights from Sydney to Ontario

Our best Lufthansa deals on Sydney to Ontario flight tickets

Lufthansa

5 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

18 Oct

ONT16:03Ontario

21h 52m

1 stop

SYD07:55Sydney Kingsford Smith

$1,176

Lufthansa

5 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

18 Oct

ONT16:03Ontario

21h 52m

1 stop

SYD07:55Sydney Kingsford Smith

$1,183

Lufthansa

5 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

18 Oct

ONT18:32Ontario

19h 23m

1 stop

SYD07:55Sydney Kingsford Smith

$1,189

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 2/11

10:40-16:23

2 stops24h 43m

Ontario

Mon 9/11

06:00-08:30

2 stops31h 30m

$1,111

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 5/10

11:20-12:18

1 stop18h 58m

Ontario

Sun 18/10

16:03-07:55

1 stop21h 52m

$1,176

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 5/10

11:20-12:18

1 stop18h 58m

Ontario

Sun 18/10

16:03-07:55

1 stop21h 52m

$1,183

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 5/10

11:20-12:18

1 stop18h 58m

Ontario

Sun 18/10

18:32-07:55

1 stop19h 23m

$1,183

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 5/10

11:20-12:18

1 stop18h 58m

Ontario

Sun 18/10

16:03-07:55

1 stop21h 52m

$1,184

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 2/11

11:50-12:29

1 stop19h 39m

Ontario

Tue 17/11

16:17-09:20

1 stop22h 03m

$1,184

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 8/10

11:20-12:18

1 stop18h 58m

Ontario

Wed 21/10

16:03-07:55

1 stop21h 52m

$1,187

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 5/10

11:20-12:18

1 stop18h 58m

Ontario

Sun 18/10

16:03-07:55

1 stop21h 52m

$1,187

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 2/11

11:50-12:29

1 stop19h 39m

Ontario

Tue 17/11

16:17-09:20

1 stop22h 03m

$1,187

Fastest return journey

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 8/2

11:50-09:47

1 stop16h 57m

Ontario

Mon 15/2

18:53-09:20

1 stop19h 27m

$1,189

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 46% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 12 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	$678
Fastest flight time	16h 48m
Direct flights	None

The best one-way flight to Ontario from Sydney in the past 72 hours is $678. The best return flight deal from Sydney to Ontario found on momondo in the last 72 hours is $1,111.

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 $1,035	Free cancellation	Rating 7.4 10,226 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.