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.

$716 Cheap Flights from Sydney to Ontario in 2026

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.

10:15 - 23:55SYD Sydney Kingsford Smith-ONT Ontario

31h 40m2 stops Los Angeles Salt Lake City

06:00 - 07:30ONT Ontario-SYD Sydney Kingsford Smith

31h 30m2 stops Salt Lake City Los Angeles

$1,229Delta

Mon, 19 Oct - Mon, 26 Oct

20:45 - 21:29SYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

07:00 - 18:50ONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

$1,266Multiple Airlines

Sun, 18 Oct - Fri, 23 Oct

20:45 - 21:29SYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

07:00 - 18:50ONT Ontario-SYD Sydney Kingsford Smith

17h 50m1 stop Honolulu

$1,266Multiple Airlines

Sun, 18 Oct - Fri, 23 Oct

21:40 - 21:42SYD Sydney Kingsford Smith-ONT Ontario

19h 02m1 stop Honolulu

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

39h 45m1 stop Honolulu

$1,289Multiple Airlines

Fri, 6 Nov - Thu, 3 Dec

20:45 - 21:29SYD Sydney Kingsford Smith-ONT Ontario

18h 44m1 stop Honolulu

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

18h 45m1 stop Honolulu

$1,289Multiple Airlines

Sat, 24 Oct - Sat, 31 Oct

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

$1,295Multiple Airlines

Mon, 18 Jan - Mon, 1 Feb

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

$1,300Virgin Australia

Wed, 23 Sep - Wed, 30 Sep

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

$1,300Virgin Australia

Thu, 28 Jan - Tue, 2 Feb

09:15 - 21:59SYD Sydney Kingsford Smith-ONT Ontario

31h 44m1 stop Houston George Bush Intcntl

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

22h 17m1 stop San Francisco

$1,303United Airlines

Wed, 9 Dec - Sun, 10 Jan

09:15 - 21:59SYD Sydney Kingsford Smith-ONT Ontario

31h 44m1 stop Houston George Bush Intcntl

18:53 - 06:20ONT Ontario-SYD Sydney Kingsford Smith

40h 27m1 stop San Francisco

$1,303United Airlines

Wed, 9 Dec - Sat, 9 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

20:45 - 22:10SYD Sydney Kingsford Smith-ONT Ontario

18h 25m1 stop Honolulu

09:31 - 18:50ONT Ontario-SYD Sydney Kingsford Smith

40h 19m1 stop Honolulu

$1,281Multiple Airlines

Fri, 11 Sep - Fri, 18 Sep

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

18h 52m1 stop San Francisco

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

19h 43m1 stop San Francisco

$1,300Virgin Australia

Tue, 8 Sep - Tue, 24 Nov

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

18h 52m1 stop San Francisco

05:00 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

33h 20m2 stops Denver Intl San Francisco

$1,303United Airlines

Wed, 9 Sep - Mon, 23 Nov

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

18h 52m1 stop San Francisco

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

30h 00m1 stop Houston George Bush Intcntl

$1,303United Airlines

Thu, 10 Sep - Wed, 25 Nov

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

18h 52m1 stop San Francisco

05:00 - 07:00ONT Ontario-SYD Sydney Kingsford Smith

31h 00m2 stops Denver Intl Houston George Bush Intcntl

$1,303United Airlines

Thu, 10 Sep - Wed, 25 Nov

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

18h 52m1 stop San Francisco

05:00 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

33h 20m2 stops Denver Intl San Francisco

$1,303United Airlines

Tue, 8 Sep - Tue, 24 Nov

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

18h 52m1 stop San Francisco

05:00 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

33h 20m2 stops Denver Intl San Francisco

$1,303United Airlines

Tue, 8 Sep - Mon, 23 Nov

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

18h 52m1 stop San Francisco

05:00 - 09:20ONT Ontario-SYD Sydney Kingsford Smith

33h 20m2 stops Denver Intl San Francisco

$1,303United Airlines

Tue, 8 Sep - Wed, 25 Nov

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

18h 52m1 stop San Francisco

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

19h 43m1 stop San Francisco

$1,303United Airlines

Tue, 8 Sep - Sun, 22 Nov

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

18h 52m1 stop San Francisco

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

30h 00m1 stop Houston George Bush Intcntl

$1,303United Airlines

Wed, 9 Sep - Sun, 22 Nov

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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 Dec

SYD11:50Sydney Kingsford Smith

16h 48m

1 stop

ONT09:38Ontario

9 Jan

ONT18:53Ontario

40h 27m

1 stop

SYD06:20Sydney Kingsford Smith

$1,303

United Airlines

23 Sept

SYD10:20Sydney Kingsford Smith

43h 26m

2 stops

ONT12:46Ontario

30 Sept

ONT13:52Ontario

24h 03m

1 stop

SYD06:55Sydney Kingsford Smith

$1,309

United Airlines

29 Oct

SYD11:50Sydney Kingsford Smith

51h 01m

2 stops

ONT20:51Ontario

2 Nov

ONT05:00Ontario

33h 20m

2 stops

SYD09:20Sydney Kingsford Smith

$1,311

Lufthansa flights from Sydney to Ontario

Our best Lufthansa deals on Sydney to Ontario flight tickets

Lufthansa

10 Sept

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

23 Sept

ONT13:56Ontario

23h 59m

1 stop

SYD06:55Sydney Kingsford Smith

$1,574

Lufthansa

10 Sept

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

23 Sept

ONT13:56Ontario

23h 59m

1 stop

SYD06:55Sydney Kingsford Smith

$1,590

Lufthansa

10 Sept

SYD10:20Sydney Kingsford Smith

18h 52m

1 stop

ONT12:12Ontario

23 Sept

ONT13:56Ontario

23h 59m

1 stop

SYD06:55Sydney Kingsford Smith

$1,592

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 19/10

10:15-23:55

2 stops31h 40m

Ontario

Mon 26/10

06:00-07:30

2 stops31h 30m

$1,229

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Sun 18/10

20:45-21:29

1 stop18h 44m

Ontario

Fri 23/10

07:00-18:50

1 stop17h 50m

$1,266

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Sun 18/10

20:45-21:29

1 stop18h 44m

Ontario

Fri 23/10

07:00-18:50

1 stop17h 50m

$1,266

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Fri 6/11

21:40-21:42

1 stop19h 02m

Ontario

Thu 3/12

09:00-19:45

1 stop39h 45m

$1,289

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Sat 24/10

20:45-21:29

1 stop18h 44m

Ontario

Sat 31/10

07:00-19:45

1 stop18h 45m

$1,289

Fastest return journey

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Mon 18/1

21:40-21:18

1 stop18h 38m

Ontario

Mon 1/2

07:00-19:45

1 stop17h 45m

$1,295

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 23/9

10:20-12:12

1 stop18h 52m

Ontario

Wed 30/9

16:03-06:55

1 stop21h 52m

$1,300

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Thu 28/1

11:50-09:47

1 stop16h 57m

Ontario

Tue 2/2

18:53-09:20

1 stop19h 27m

$1,300

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 9/12

09:15-21:59

1 stop31h 44m

Ontario

Sun 10/1

16:03-09:20

1 stop22h 17m

$1,303

SydneyOntario

SYD Sydney Kingsford Smith - ONT Ontario

SYDONT

Sydney Kingsford Smith

Wed 9/12

09:15-21:59

1 stop31h 44m

Ontario

Sat 9/1

18:53-06:20

1 stop40h 27m

$1,303

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 47% 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	$716
Fastest flight time	16h 48m
Direct flights	None

The best one-way flight to Ontario from Sydney in the past 72 hours is $716. The best return flight deal from Sydney to Ontario found on momondo in the last 72 hours is $1,229.

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 $1,023	Free cancellation	Rating 7.4 10,175 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.