What’s the cheapest stopover airport for flights from Sydney to Ontario?

San Francisco (SFO) is the most affordable one-stop option, with an average return flight price of $1,575. Find deals

How long is the flight from Sydney to Ontario?

Hawaiian Airlines and United Airlines can get you from Sydney to Ontario in just under 18h 53m. Your travel time can differ by up to 22m. There are 12125 km between Sydney and Ontario. This flight may include one or multiple stops.

What is the cheapest airline to fly from Sydney to Ontario round-trip?

United Airlines, at $1,196, was found to be the cheapest airline from Sydney to Ontario.. United Airlines is currently priced 18% below the average price you’ll pay for this route.

What is the cheapest day to fly from Sydney to Ontario?

Travellers seeking maximum savings on their Sydney to Ontario flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 inches per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

What is the cheapest time of day to fly from SYD to ONT?

When flying from Sydney to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 2% versus a flight in the morning.

Can I find deals for flights from Sydney to Ontario that include hotel bookings?

Yes. In addition to deals on Sydney to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Sydney to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Ontario.

Can I find deals for business class flights from Sydney to Ontario?

Yes. Cheapflights offers flight deals from Sydney to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$708+ Flights from Sydney to Ontario

Cheap flight deals from Sydney to Ontario

Round-trip from	$1,093
One-way from	$708
Popular in	June
Cheapest in	September
Average price	$1,172

Hawaiian Airlines
15/2-8/3
2 total stops
59h 10m total
Sydney to Ontario

Search Deals

Hawaiian Airlines
6/12
1 total stop
17h 43m total
Sydney to Ontario

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($181 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($56 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Sydney to Ontario

Cheapest flights from Sydney to Ontario
Explore the most affordable flight options available from Sydney to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 31/1021:40SYD - ONT

1 stop37h 34mAlaska Airlines

Tue 4/1109:45ONT - SYD

1 stop39h 00mAlaska Airlines

Deal found 16/9$1,283

Sat 1/1121:40SYD - ONT

1 stop38h 34mAlaska Airlines

Wed 5/1109:45ONT - SYD

1 stop39h 00mAlaska Airlines

Deal found 17/9$1,285

Fri 3/1010:20SYD - ONT

1 stop18h 53mUnited Airlines

Sun 19/1020:16ONT - SYD

1 stop17h 39mUnited Airlines

Deal found 17/9$1,297

Wed 17/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Tue 30/918:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 16/9$1,310

Wed 24/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Sun 28/913:53ONT - SYD

1 stop24h 02mUnited Airlines

Deal found 17/9$1,312

Sun 21/910:20SYD - ONT

2 stops27h 23mUnited Airlines

Sat 27/906:00ONT - SYD

2 stops55h 55mUnited Airlines

Deal found 16/9$1,348

Sat 20/910:20SYD - ONT

1 stop24h 17mUnited Airlines

Sat 27/906:00ONT - SYD

2 stops55h 55mUnited Airlines

Deal found 16/9$1,349

Fri 19/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Tue 23/918:50ONT - SYD

1 stop19h 05mUnited Airlines

Deal found 16/9$1,385

Tue 21/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Tue 9/1213:50ONT - SYD

1 stop24h 25mUnited Airlines

Deal found 16/9$1,387

Fri 10/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Fri 24/1005:05ONT - SYD

2 stops32h 50mUnited Airlines

Deal found 16/9$1,388

Fri 3/1010:20SYD - ONT

1 stop18h 53mUnited Airlines

Fri 24/1018:27ONT - SYD

2 stops42h 33mUnited Airlines

Deal found 16/9$1,390

Best flights from Sydney to Ontario
Discover carefully curated flight deals from Sydney to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Sun 15/221:40SYD - ONT

1 stop19h 15mHawaiian Airlines

Sun 15/309:50ONT - SYD

1 stop39h 55mHawaiian Airlines

Deal found 15/9$1,102

Mon 6/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Sun 19/1020:16ONT - SYD

1 stop17h 39mUnited Airlines

Deal found 15/9$1,136

Sat 11/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Mon 29/1218:39ONT - SYD

1 stop19h 36mUnited Airlines

Deal found 15/9$1,211

Fri 14/1111:50SYD - ONT

2 stops27h 54mUnited Airlines

Tue 18/1113:33ONT - SYD

2 stops46h 27mUnited Airlines

Deal found 15/9$1,211

Sat 11/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Sat 18/1006:00ONT - SYD

2 stops55h 55mUnited Airlines

Deal found 16/9$1,388

Wed 15/1011:20SYD - ONT

1 stop18h 53mUnited Airlines

Fri 24/1018:27ONT - SYD

2 stops42h 33mUnited Airlines

Deal found 16/9$1,388

Wed 5/1112:10SYD - ONT

2 stops27h 34mUnited Airlines

Fri 14/1113:29ONT - SYD

2 stops46h 31mUnited Airlines

Deal found 16/9$1,388

Fri 21/1112:10SYD - ONT

1 stop19h 27mUnited Airlines

Sat 29/1118:38ONT - SYD

1 stop19h 37mUnited Airlines

Deal found 17/9$1,390

Mon 16/212:10SYD - ONT

1 stop19h 08mUnited Airlines

Mon 16/319:15ONT - SYD

1 stop20h 00mUnited Airlines

Deal found 17/9$1,390

Thu 11/1212:10SYD - ONT

1 stop19h 07mUnited Airlines

Tue 30/1218:39ONT - SYD

1 stop19h 36mUnited Airlines

Deal found 17/9$1,390

Last-minute flights from Sydney to Ontario
Discover last-minute flight deals from Sydney to Ontario. Data last updated 18 September 2025 and is based on user searches.

Mon 22/910:20SYD - ONT

1 stop24h 17mUnited Airlines

Tue 7/1013:53ONT - SYD

1 stop24h 02mUnited Airlines

Deal found 16/9$1,973

Mon 22/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Fri 26/913:53ONT - SYD

1 stop24h 02mUnited Airlines

Deal found 17/9$2,051

Mon 22/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Wed 8/1018:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 17/9$2,206

Tue 23/910:20SYD - ONT

1 stop24h 17mUnited Airlines

Sat 27/906:00ONT - SYD

2 stops55h 55mUnited Airlines

Deal found 16/9$1,310

Tue 23/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Wed 8/1018:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 16/9$2,202

Wed 24/910:20SYD - ONT

2 stops24h 09mUnited Airlines

Sun 28/913:53ONT - SYD

1 stop24h 02mUnited Airlines

Deal found 17/9$1,312

Wed 24/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Wed 8/1018:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 17/9$2,205

Fri 26/910:20SYD - ONT

1 stop18h 53mUnited Airlines

Tue 7/1018:36ONT - SYD

1 stop19h 19mUnited Airlines

Deal found 17/9$2,015

Sat 27/910:20SYD - ONT

1 stop24h 29mUnited Airlines

Sat 4/1007:02ONT - SYD

2 stops54h 53mUnited Airlines

Deal found 16/9$2,446

One-way flights from Sydney to Ontario
Search for one-way flight options from Sydney to Ontario. Find affordable one-way fares based on user searches. Data last updated 18 September 2025.

Sat 6/1221:40SYD - ONT

1 stop17h 43mHawaiian Airlines

Deal found 17/9$708

Thu 30/1021:40SYD - ONT

1 stop37h 34mHawaiian Airlines

Deal found 16/9$727

Wed 24/916:20SYD - ONT

1 stop21h 50mMultiple Airlines

Deal found 16/9$748

Thu 30/1009:40SYD - ONT

2 stops24h 13mDelta

Deal found 15/9$776

Fri 10/1010:25SYD - ONT

2 stops23h 28mDelta

Deal found 16/9$778

Fri 26/910:20SYD - ONT

1 stop29h 32mUnited Airlines

Deal found 15/9$815

Mon 22/910:20SYD - ONT

2 stops43h 12mUnited Airlines

Deal found 16/9$817

Mon 1/1212:10SYD - ONT

1 stop26h 31mUnited Airlines

Deal found 17/9$818

Mon 15/1212:10SYD - ONT

2 stops43h 22mUnited Airlines

Deal found 15/9$824

Thu 16/1011:20SYD - ONT

2 stops52h 04mUnited Airlines

Deal found 15/9$826

Sun 28/910:20SYD - ONT

2 stops48h 03mUnited Airlines

Deal found 17/9$863

Mon 8/1212:10SYD - ONT

2 stops27h 32mUnited Airlines

Deal found 17/9$1,013

Fly from

Fly to

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sun 15/2

21:40-21:55

1 stop19h 15m

Ontario

Sun 15/3

09:50-19:45

1 stop39h 55m

$1,102

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

Sat 11/10

11:20-12:13

1 stop18h 53m

Ontario

Mon 29/12

18:39-09:15

1 stop19h 36m

$1,211

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 14/11

11:50-20:44

2 stops27h 54m

Ontario

Tue 18/11

13:33-07:00

2 stops46h 27m

$1,211

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Sat 11/10

11:20-12:13

1 stop18h 53m

Ontario

Sat 18/10

06:00-07:55

2 stops55h 55m

$1,388

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 15/10

11:20-12:13

1 stop18h 53m

Ontario

Fri 24/10

18:27-07:00

2 stops42h 33m

$1,388

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 5/11

12:10-20:44

2 stops27h 34m

Ontario

Fri 14/11

13:29-07:00

2 stops46h 31m

$1,388

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Fri 21/11

12:10-12:37

1 stop19h 27m

Ontario

Sat 29/11

18:38-09:15

1 stop19h 37m

$1,390

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Mon 16/2

12:10-12:18

1 stop19h 08m

Ontario

Mon 16/3

19:15-09:15

1 stop20h 00m

$1,390

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 11/12

12:10-12:17

1 stop19h 07m

Ontario

Tue 30/12

18:39-09:15

1 stop19h 36m

$1,390

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 20 results

Best time to book a flight from Sydney to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Sydney with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Ontario

What’s the top stopover airport for flights from Sydney to Ontario?

San Francisco (SFO) – chosen by Cheapflights users on 88% of one-stop itineraries from Sydney to Ontario on Cheapflights.

What’s the fastest stopover option from Sydney to Ontario?

Flights via Honolulu (HNL) have the shortest average one-way travel time for one-stop routes: 18h 02m.

What’s the fastest stopover option from Sydney to Ontario?

Flights via Honolulu (HNL) have the shortest average one-way travel time for one-stop routes: 18h 02m.

Which airport typically offers the quickest stopover for flights from Sydney to Ontario?

Flights via Honolulu (HNL) offer the fastest connection on this route, with an average stopover time of 2h 08m.

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown with United Airlines from Sydney to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,926 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

8,926 reviews

United Airlines

7.4

Good

8,926 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

How long is the flight from Sydney to Ontario?
Hawaiian Airlines and United Airlines can get you from Sydney to Ontario in just under 18h 53m. Your travel time can differ by up to 22m. There are 12125 km between Sydney and Ontario. This flight may include one or multiple stops.
What is the cheapest airline to fly from Sydney to Ontario round-trip?
United Airlines, at $1,196, was found to be the cheapest airline from Sydney to Ontario.. United Airlines is currently priced 18% below the average price you’ll pay for this route.
Can I find deals for flights from Sydney to Ontario that include hotel bookings?
Yes. In addition to deals on Sydney to Ontario flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Sydney to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sydney to Ontario.
Can I find deals for business class flights from Sydney to Ontario?
Yes. Cheapflights offers flight deals from Sydney to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Sydney to Ontario

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,196	Average$1,661	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Sydney to Ontario?

Cheapflights makes it easy to find Sydney to Ontario flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sydney to Ontario?

Millions of users choose and trust Cheapflights to book the best flight deals from Sydney to Ontario for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Sydney to Ontario with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Sydney to Ontario, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Sydney to Ontario become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Sydney to Ontario from $708

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Sydney to Ontario

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sydney to Ontario

Cheapest flights from Sydney to OntarioExplore the most affordable flight options available from Sydney to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Explore the most affordable flight options available from Sydney to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Sydney to Ontario that are best for you.

Best time to book a flight from Sydney to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Sydney with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sydney to Ontario

What’s the top stopover airport for flights from Sydney to Ontario?

What’s the fastest stopover option from Sydney to Ontario?

What’s the fastest stopover option from Sydney to Ontario?

Which airport typically offers the quickest stopover for flights from Sydney to Ontario?

Reviews of airlines servicing Ontario

Read reviews from past customers who have flown with United Airlines from Sydney to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sydney to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Sydney to Ontario?

What is the cheapest airline to fly from Sydney to Ontario round-trip?

Can I find deals for flights from Sydney to Ontario that include hotel bookings?

How can I find direct flights from Sydney to Ontario?

Can I find deals for business class flights from Sydney to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sydney to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Sydney to Ontario

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sydney to Ontario?

Why should you use Cheapflights to find cheap flight tickets from Sydney to Ontario?

Can Cheapflights find flights from Sydney to Ontario with no change fees?

Can Cheapflights notify me if prices for flights from Sydney to Ontario become cheaper?

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Travel Smart

Cheapest flights from Sydney to Ontario
Explore the most affordable flight options available from Sydney to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.