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Cheap flights from Sydney to Los Angeles from $609

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sydney to Los Angeles departing on 28/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Delta Logo
09:40 - 23:39SYD-ONT
31h 59m2 stops
Delta Logo
06:00 - 08:30ONT-SYD
31h 30m2 stops
$1,111Delta
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Mon, 27 Oct - Mon, 3 Nov
United Airlines Logo
11:20 - 12:13SYD-ONT
18h 53m1 stop
United Airlines Logo
20:16 - 07:55ONT-SYD
17h 39m1 stop
$1,133United Airlines
Find Deal
Mon, 6 Oct - Sun, 19 Oct
United Airlines Logo
11:20 - 22:52SYD-ONT
29h 32m1 stop
United Airlines Logo
06:00 - 07:00ONT-SYD
30h 00m1 stop
$1,135United Airlines
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Mon, 20 Oct - Tue, 9 Dec
United Airlines Logo
11:20 - 12:13SYD-ONT
18h 53m1 stop
United Airlines Logo
20:16 - 07:55ONT-SYD
17h 39m1 stop
$1,136United Airlines
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Mon, 6 Oct - Sun, 19 Oct
Alaska Airlines Logo
21:40 - 17:14SYD-ONT
38h 34m1 stop
Alaska Airlines Logo
09:45 - 19:45ONT-SYD
39h 00m1 stop
$1,206Alaska Airlines
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Fri, 7 Nov - Fri, 14 Nov
Hawaiian Airlines Logo
21:40 - 20:23SYD-ONT
17h 43m1 stop
Hawaiian Airlines Logo
08:00 - 19:45ONT-SYD
40h 45m1 stop
$1,302Hawaiian Airlines
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Thu, 11 Dec - Wed, 31 Dec
Alaska Airlines Logo
21:40 - 20:23SYD-ONT
17h 43m1 stop
Alaska Airlines Logo
08:00 - 19:45ONT-SYD
40h 45m1 stop
$1,339Alaska Airlines
Find Deal
Tue, 9 Dec - Wed, 31 Dec
Hawaiian Airlines Logo
21:40 - 17:14SYD-ONT
38h 34m1 stop
Hawaiian Airlines Logo
08:00 - 19:45ONT-SYD
40h 45m1 stop
$1,583Hawaiian Airlines
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Tue, 18 Nov - Tue, 6 Jan
China Airlines Logo
22:10 - 16:50SYD-ONT
37h 40m1 stop
China Airlines Logo
22:50 - 12:15ONT-SYD
42h 25m1 stop
$1,745China Airlines
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Mon, 3 Nov - Fri, 7 Nov
China Airlines Logo
22:10 - 16:50SYD-ONT
37h 40m1 stop
China Airlines Logo
22:50 - 12:15ONT-SYD
42h 25m1 stop
$1,823China Airlines
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Tue, 11 Nov - Sat, 15 Nov

Alaska Airlines flights from Sydney to Ontario

Our best Alaska Airlines deals on Sydney to Ontario flight tickets
Alaska Airlines
7 Nov
SYD21:40Sydney Kingsford Smith
38h 34m
1 stop
ONT17:14Ontario
14 Nov
ONT09:45Ontario
39h 00m
1 stop
SYD19:45Sydney Kingsford Smith
$1,206
Find similar
Alaska Airlines
9 Dec
SYD21:40Sydney Kingsford Smith
17h 43m
1 stop
ONT20:23Ontario
31 Dec
ONT08:00Ontario
40h 45m
1 stop
SYD19:45Sydney Kingsford Smith
$1,339
Find similar
Alaska Airlines
21 Oct
SYD21:40Sydney Kingsford Smith
32h 57m
2 stops
ONT12:37Ontario
2 Nov
ONT09:45Ontario
39h 00m
1 stop
SYD19:45Sydney Kingsford Smith
$1,347
Find similar

Hawaiian Airlines flights from Sydney to Ontario

Our best Hawaiian Airlines deals on Sydney to Ontario flight tickets
Hawaiian Airlines
11 Dec
SYD21:40Sydney Kingsford Smith
17h 43m
1 stop
ONT20:23Ontario
31 Dec
ONT08:00Ontario
40h 45m
1 stop
SYD19:45Sydney Kingsford Smith
$1,302
Find similar
Hawaiian Airlines
18 Nov
SYD21:40Sydney Kingsford Smith
38h 34m
1 stop
ONT17:14Ontario
6 Jan
ONT08:00Ontario
40h 45m
1 stop
SYD19:45Sydney Kingsford Smith
$1,583
Find similar
Hawaiian Airlines
9 Dec
SYD21:40Sydney Kingsford Smith
17h 43m
1 stop
ONT20:23Ontario
27 Dec
ONT08:00Ontario
40h 45m
1 stop
SYD19:45Sydney Kingsford Smith
$1,676
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Sydney to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 14 September 2025.
Use the filters below to find and compare flights from Sydney to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 27/10

09:40-23:39

2 stops31h 59m

Ontario

Mon 3/11

06:00-08:30

2 stops31h 30m

$1,111

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 6/10

11:20-12:13

1 stop18h 53m

Ontario

Sun 19/10

20:16-07:55

1 stop17h 39m

$1,133

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 20/10

11:20-22:52

1 stop29h 32m

Ontario

Tue 9/12

06:00-07:00

1 stop30h 00m

$1,135

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 6/10

11:20-12:13

1 stop18h 53m

Ontario

Sun 19/10

20:16-07:55

1 stop17h 39m

$1,136

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 7/11

21:40-17:14

1 stop38h 34m

Ontario

Fri 14/11

09:45-19:45

1 stop39h 00m

$1,206

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 11/12

21:40-20:23

1 stop17h 43m

Ontario

Wed 31/12

08:00-19:45

1 stop40h 45m

$1,302

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 9/12

21:40-20:23

1 stop17h 43m

Ontario

Wed 31/12

08:00-19:45

1 stop40h 45m

$1,339

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 18/11

21:40-17:14

1 stop38h 34m

Ontario

Tue 6/1

08:00-19:45

1 stop40h 45m

$1,583

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 3/11

22:10-16:50

1 stop37h 40m

Ontario

Fri 7/11

22:50-12:15

1 stop42h 25m

$1,745

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 11/11

22:10-16:50

1 stop37h 40m

Ontario

Sat 15/11

22:50-12:15

1 stop42h 25m

$1,823

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 day to depart on your flight to Ontario?

According to our data, Monday is the cheapest day to fly to Ontario from Sydney. The lowest ticket price found for a Monday departure recently was $1,387. 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 Sydney because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,823.

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

Flying to Ontario from Sydney in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,623 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $1,650. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Direct flights

None
There are no direct flights from Sydney to Ontario. There are no popular flight routes from Sydney to Ontario.
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  • 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 17h 43m.

  • 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?

  • 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?

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 AirlinesPriceFrom $1,199Free cancellationRating
7.4
8,934 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.

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