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Cheap flights from Sydney to Ontario from $496

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 Ontario departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:45 pm - 9:47 pm
SYD
-
ONT
18h 02m
1 stop
Multiple Airlines Logo
8:00 am - 6:50 pm
ONT
-
SYD
17h 50m
1 stop
$909Multiple Airlines
vie., ago. 14 - sáb., sep. 5
Multiple Airlines Logo
8:45 pm - 10:17 pm
SYD
-
ONT
18h 32m
1 stop
Multiple Airlines Logo
9:11 am - 6:50 pm
ONT
-
SYD
40h 39m
1 stop
$936Multiple Airlines
vie., may. 22 - vie., ago. 14
Multiple Airlines Logo
8:45 pm - 9:10 pm
SYD
-
ONT
17h 25m
1 stop
Multiple Airlines Logo
9:40 am - 6:50 pm
ONT
-
SYD
40h 10m
1 stop
$961Multiple Airlines
mar., may. 5 - mié., may. 20
Delta Logo
9:40 am - 12:23 pm
SYD
-
ONT
20h 43m
2 stops
Delta Logo
6:00 am - 7:25 am
ONT
-
SYD
31h 25m
2 stops
$989Delta
lun., mar. 16 - lun., mar. 23
Multiple Airlines Logo
8:45 pm - 9:47 pm
SYD
-
ONT
18h 02m
1 stop
Multiple Airlines Logo
4:00 pm - 6:50 pm
ONT
-
SYD
33h 50m
2 stops
$990Multiple Airlines
jue., ago. 6 - mar., sep. 1
United Airlines Logo
12:10 pm - 12:18 pm
SYD
-
ONT
18h 08m
1 stop
United Airlines Logo
6:49 pm - 6:55 am
ONT
-
SYD
19h 06m
1 stop
$994United Airlines
mié., mar. 18 - mié., abr. 22
United Airlines Logo
12:10 pm - 6:07 pm
SYD
-
ONT
23h 57m
2 stops
United Airlines Logo
6:49 pm - 6:55 am
ONT
-
SYD
19h 06m
1 stop
$998United Airlines
mar., mar. 17 - mié., abr. 15
United Airlines Logo
10:20 am - 9:56 am
SYD
-
ONT
16h 36m
1 stop
United Airlines Logo
6:39 pm - 6:55 am
ONT
-
SYD
19h 16m
1 stop
$999United Airlines
lun., abr. 27 - lun., may. 25
Multiple Airlines Logo
8:45 pm - 9:10 pm
SYD
-
ONT
17h 25m
1 stop
Multiple Airlines Logo
3:24 pm - 6:50 pm
ONT
-
SYD
34h 26m
2 stops
$1,022Multiple Airlines
vie., may. 1 - mié., may. 6
Multiple Airlines Logo
8:45 pm - 9:10 pm
SYD
-
ONT
17h 25m
1 stop
Multiple Airlines Logo
10:39 am - 6:50 pm
ONT
-
SYD
39h 11m
2 stops
$1,024Multiple Airlines
jue., abr. 23 - mar., abr. 28

United Airlines flights from Sydney to Ontario

Our best United Airlines deals on Sydney to Ontario flight tickets
United Airlines
Mar 9
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT12:18 pmOntario
Mar 22
ONT6:37 pmOntario
17h 43m
1 stop
SYD6:20 amSydney Kingsford Smith
$989
United Airlines
Mar 9
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT12:18 pmOntario
Mar 22
ONT6:37 pmOntario
17h 43m
1 stop
SYD6:20 amSydney Kingsford Smith
$992
United Airlines
Mar 18
SYD12:10 pmSydney Kingsford Smith
18h 08m
1 stop
ONT12:18 pmOntario
Apr 22
ONT6:49 pmOntario
19h 06m
1 stop
SYD6:55 amSydney Kingsford Smith
$994

China Airlines flights from Sydney to Ontario

Our best China Airlines deals on Sydney to Ontario flight tickets
China Airlines
Apr 20
SYD10:10 pmSydney Kingsford Smith
36h 50m
1 stop
ONT6:00 pmOntario
May 4
ONT12:10 amOntario
41h 35m
1 stop
SYD10:45 amSydney Kingsford Smith
$1,202
China Airlines
Apr 20
SYD10:10 pmSydney Kingsford Smith
36h 50m
1 stop
ONT6:00 pmOntario
May 4
ONT12:10 amOntario
41h 35m
1 stop
SYD10:45 amSydney Kingsford Smith
$1,216
China Airlines
Mar 9
SYD10:10 pmSydney Kingsford Smith
37h 40m
1 stop
ONT5:50 pmOntario
Mar 13
ONT11:50 pmOntario
42h 25m
1 stop
SYD12:15 pmSydney Kingsford Smith
$1,347

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated marzo 6, 2026.
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

Cheapest round-trip
Quickest round-trip

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

vie. 8/14

8:45 pm-9:47 pm

1 stop18h 02m

Ontario

sáb. 9/5

8:00 am-6:50 pm

1 stop17h 50m

$909

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

vie. 5/22

8:45 pm-10:17 pm

1 stop18h 32m

Ontario

vie. 8/14

9:11 am-6:50 pm

1 stop40h 39m

$936

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mar. 5/5

8:45 pm-9:10 pm

1 stop17h 25m

Ontario

mié. 5/20

9:40 am-6:50 pm

1 stop40h 10m

$961

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

lun. 3/16

9:40 am-12:23 pm

2 stops20h 43m

Ontario

lun. 3/23

6:00 am-7:25 am

2 stops31h 25m

$989

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

jue. 8/6

8:45 pm-9:47 pm

1 stop18h 02m

Ontario

mar. 9/1

4:00 pm-6:50 pm

2 stops33h 50m

$990

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mié. 3/18

12:10 pm-12:18 pm

1 stop18h 08m

Ontario

mié. 4/22

6:49 pm-6:55 am

1 stop19h 06m

$994

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

mar. 3/17

12:10 pm-6:07 pm

2 stops23h 57m

Ontario

mié. 4/15

6:49 pm-6:55 am

1 stop19h 06m

$998

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

lun. 4/27

10:20 am-9:56 am

1 stop16h 36m

Ontario

lun. 5/25

6:39 pm-6:55 am

1 stop19h 16m

$999

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

vie. 5/1

8:45 pm-9:10 pm

1 stop17h 25m

Ontario

mié. 5/6

3:24 pm-6:50 pm

2 stops34h 26m

$1,022

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

jue. 4/23

8:45 pm-9:10 pm

1 stop17h 25m

Ontario

mar. 4/28

10:39 am-6:50 pm

2 stops39h 11m

$1,024

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ontario from

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

What airlines fly to Ontario?

Qantas Airways, United Airlines and Delta 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 traveling to Ontario. Keep in mind that there are 7 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 round-trip 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

Fastest flight time

17h 25m

Direct flights

None
The fastest flight from Sydney to Ontario takes 17h 25m
There are no direct flights from Sydney to Ontario. There are no popular flight routes from Sydney to Ontario.
Search flight deals

  • How far is Sydney Kingsford Smith to Ontario by plane?

    A flight from Sydney Kingsford Smith to Ontario will travel around 7527.4 mi. A reasonable flight in good conditions will take 17h 25m.

  • 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 are refreshed on a daily basis.

  • 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 license 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.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sydney to Ontario for you.

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

Yes. momondo enables you to select and highlight flights to Ontario from Sydney with this policy.

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?

Price alerts on flights to Ontario from Sydney are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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