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.

$719 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

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Cheap return flights

Enter your travel dates to find the best prices.

21:40 - 22:43SYD Sydney Kingsford Smith-ONT Ontario

20h 03m1 stop Honolulu

09:55 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

38h 50m1 stop Honolulu

$1,048Multiple Airlines

Tue, 10 Nov - Tue, 17 Nov

21:40 - 22:43SYD Sydney Kingsford Smith-ONT Ontario

20h 03m1 stop Honolulu

08:03 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

40h 42m1 stop Honolulu

$1,058Multiple Airlines

Thu, 19 Nov - Tue, 8 Dec

21:40 - 22:43SYD Sydney Kingsford Smith-ONT Ontario

20h 03m1 stop Honolulu

08:03 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

40h 42m1 stop Honolulu

$1,116Multiple Airlines

Tue, 10 Nov - Wed, 9 Dec

21:40 - 21:28SYD Sydney Kingsford Smith-ONT Ontario

18h 48m1 stop Honolulu

09:00 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

39h 45m1 stop Honolulu

$1,121Multiple Airlines

Tue, 9 Mar - Fri, 12 Mar

21:40 - 22:43SYD Sydney Kingsford Smith-ONT Ontario

20h 03m1 stop Honolulu

08:03 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

40h 42m1 stop Honolulu

$1,130Multiple Airlines

Tue, 17 Nov - Tue, 8 Dec

21:40 - 21:28SYD Sydney Kingsford Smith-ONT Ontario

18h 48m1 stop Honolulu

09:00 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

39h 45m1 stop Honolulu

$1,130Multiple Airlines

Thu, 18 Feb - Tue, 23 Feb

21:40 - 21:28SYD Sydney Kingsford Smith-ONT Ontario

18h 48m1 stop Honolulu

09:00 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

39h 45m1 stop Honolulu

$1,130Multiple Airlines

Tue, 16 Feb - Tue, 23 Feb

21:40 - 21:18SYD Sydney Kingsford Smith-ONT Ontario

18h 38m1 stop Honolulu

07:00 - 19:45ONT Ontario-SYD Sydney Kingsford Smith

17h 45m1 stop Honolulu

$1,167Multiple Airlines

Sun, 17 Jan - Mon, 1 Feb

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

$1,195United Airlines

Thu, 8 Oct - Wed, 21 Oct

09:15 - 21:21SYD Sydney Kingsford Smith-ONT Ontario

31h 06m1 stop Houston George Bush Intcntl

16:03 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

22h 17m1 stop San Francisco

$1,199United Airlines

Wed, 17 Feb - Tue, 23 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

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

$1,199United Airlines

Mon, 21 Sep - Mon, 28 Sep

10:20 - 20:53SYD Sydney Kingsford Smith-ONT Ontario

27h 33m2 stops San Francisco Denver Intl

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

48h 33m2 stops Denver Intl San Francisco

$1,275United Airlines

Fri, 18 Sep - Sat, 3 Oct

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

26h 41m1 stop San Francisco

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

48h 33m2 stops Denver Intl San Francisco

$1,275United Airlines

Fri, 18 Sep - Sat, 3 Oct

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

26h 41m1 stop San Francisco

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

55h 55m2 stops Houston George Bush Intcntl San Francisco

$1,275United Airlines

Sat, 19 Sep - Sat, 26 Sep

10:20 - 20:53SYD Sydney Kingsford Smith-ONT Ontario

27h 33m2 stops San Francisco Denver Intl

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

55h 55m2 stops Houston George Bush Intcntl San Francisco

$1,275United Airlines

Sat, 19 Sep - Sat, 26 Sep

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

26h 41m1 stop San Francisco

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

55h 55m2 stops Houston George Bush Intcntl San Francisco

$1,278United Airlines

Sat, 19 Sep - Sat, 26 Sep

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

52h 39m2 stops San Francisco Houston George Bush Intcntl

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

55h 55m2 stops Houston George Bush Intcntl San Francisco

$1,278United Airlines

Sat, 19 Sep - Sat, 26 Sep

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

18h 52m1 stop San Francisco

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

21h 52m1 stop San Francisco

$1,283United Airlines

Thu, 17 Sep - Thu, 24 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

$1,350Virgin Australia

Fri, 18 Sep - Fri, 25 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

$2,020Virgin Australia

Thu, 17 Sep - Fri, 2 Oct

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United Airlines flights from Sydney to Ontario

Our best United Airlines deals on Sydney to Ontario flight tickets

United Airlines

8 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

21 Oct

ONT16:03Ontario

21h 52m

1 stop

SYD07:55Sydney Kingsford Smith

$1,195

United Airlines

29 Sept

SYD10:20Sydney Kingsford Smith

27h 38m

2 stops

ONT20:58Ontario

4 Oct

ONT06:07Ontario

31h 48m

1 stop

SYD07:55Sydney Kingsford Smith

$1,199

United Airlines

8 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

21 Oct

ONT16:03Ontario

21h 52m

1 stop

SYD07:55Sydney Kingsford Smith

$1,201

Virgin Australia flights from Sydney to Ontario

Our best Virgin Australia deals on Sydney to Ontario flight tickets

Virgin Australia

8 Feb

SYD11:50Sydney Kingsford Smith

16h 57m

1 stop

ONT09:47Ontario

15 Feb

ONT18:53Ontario

19h 27m

1 stop

SYD09:20Sydney Kingsford Smith

$1,196

Virgin Australia

18 Jan

SYD11:50Sydney Kingsford Smith

16h 57m

1 stop

ONT09:47Ontario

3 Feb

ONT16:03Ontario

22h 17m

1 stop

SYD09:20Sydney Kingsford Smith

$1,198

Virgin Australia

4 Oct

SYD11:20Sydney Kingsford Smith

18h 58m

1 stop

ONT12:18Ontario

18 Oct

ONT16:03Ontario

21h 52m

1 stop

SYD07:55Sydney Kingsford Smith

$1,272

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 10/11

21:40-22:43

1 stop20h 03m

Ontario

Tue 17/11

09:55-19:45

1 stop38h 50m

$1,048

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 19/11

21:40-22:43

1 stop20h 03m

Ontario

Tue 8/12

08:03-19:45

1 stop40h 42m

$1,058

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 10/11

21:40-22:43

1 stop20h 03m

Ontario

Wed 9/12

08:03-19:45

1 stop40h 42m

$1,116

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 9/3

21:40-21:28

1 stop18h 48m

Ontario

Fri 12/3

09:00-19:45

1 stop39h 45m

$1,121

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 17/11

21:40-22:43

1 stop20h 03m

Ontario

Tue 8/12

08:03-19:45

1 stop40h 42m

$1,130

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 18/2

21:40-21:28

1 stop18h 48m

Ontario

Tue 23/2

09:00-19:45

1 stop39h 45m

$1,130

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Tue 16/2

21:40-21:28

1 stop18h 48m

Ontario

Tue 23/2

09:00-19:45

1 stop39h 45m

$1,130

Fastest return journey

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Sun 17/1

21:40-21:18

1 stop18h 38m

Ontario

Mon 1/2

07:00-19:45

1 stop17h 45m

$1,167

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

$1,195

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 17/2

09:15-21:21

1 stop31h 06m

Ontario

Tue 23/2

16:03-09:20

1 stop22h 17m

$1,199

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 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	$719
Fastest flight time	16h 48m
Direct flights	None

The best one-way flight to Ontario from Sydney in the past 72 hours is $719. The best return flight deal from Sydney to Ontario found on momondo in the last 72 hours is $1,048.

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 $1,033	Free cancellation	Rating 7.4 10,209 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.