Find flights
When to book
Airlines
FAQs

Cheap flights from Australia to Ontario from $634

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ONT
5 Apr — 12 Apr1
1 adult

Cheap flight deals from Australia to Ontario

Keep the following information in mind while searching for Australia to Ontario flight deals. Data was last updated 31 March 2025.

Round-trip from

$1,336

One-way from

$634

Popular in

December

Cheapest in

May

Average price

$1,228
13/8-16/8
  • 13/8-16/8
  • 2 total stops
  • 58h 47m total
  • Australia to Ontario
11/4
  • 11/4
  • 2 total stops
  • 48h 54m total
  • Australia to Ontario
Highest demand for flights based on searches. 13% potential increase in price ($353 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease ($95 potential savings vs. average return price).
Average for round-trip flights in March 2025

Find flight deals from Australia to Ontario

Cheapest flights from Australia to Ontario
Explore the most affordable flight options available from Australia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Wed 13/816:20SYD - ONT
1 stop22h 07mMultiple Airlines
Sat 16/809:00ONT - SYD
1 stop36h 40mMultiple Airlines
Deal found 29/3$1,336
Fri 7/1111:40BNE - ONT
1 stop19h 30mUnited Airlines
Sun 16/1118:42ONT - BNE
1 stop18h 48mUnited Airlines
Deal found 29/3$1,441
Thu 22/521:40SYD - ONT
1 stop17h 15mHawaiian Airlines
Wed 4/609:50ONT - SYD
1 stop40h 55mHawaiian Airlines
Deal found 30/3$1,628
Sat 19/412:55MEL - ONT
2 stops35h 34mMultiple Airlines
Fri 25/418:14ONT - MEL
2 stops49h 01mMultiple Airlines
Deal found 31/3$1,684
Sun 14/921:50MEL - ONT
1 stop37h 50mChina Airlines
Sun 12/1000:10ONT - MEL
1 stop41h 30mChina Airlines
Deal found 30/3$1,729
Thu 15/522:10SYD - ONT
1 stop36h 50mChina Airlines
Sun 7/900:45ONT - SYD
1 stop41h 00mChina Airlines
Deal found 31/3$1,748
Sat 6/922:50BNE - ONT
1 stop36h 50mChina Airlines
Sat 11/1000:10ONT - BNE
1 stop41h 25mChina Airlines
Deal found 31/3$1,771
Tue 26/810:20SYD - ONT
1 stop18h 53mUnited Airlines
Tue 9/918:36ONT - SYD
1 stop19h 19mUnited Airlines
Deal found 30/3$1,791
Tue 3/610:55MEL - ONT
2 stops23h 30mUnited Airlines
Wed 18/618:41ONT - MEL
1 stop20h 34mUnited Airlines
Deal found 30/3$1,876
Wed 4/618:15BNE - ONT
2 stops40h 45mMultiple Airlines
Mon 23/600:10ONT - BNE
1 stop41h 25mMultiple Airlines
Deal found 31/3$2,015
Sun 1/615:30MEL - ONT
2 stops23h 25mHawaiian Airlines
Mon 30/609:00ONT - MEL
2 stops29h 35mHawaiian Airlines
Deal found 30/3$2,102
Thu 10/407:50PER - ONT
2 stops49h 10mMultiple Airlines
Sun 13/400:10ONT - PER
2 stops45h 00mMultiple Airlines
Deal found 30/3$2,317

Cheapflights Fare Finder

Customise your flight search to find flights from Australia 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, Cheapflights users made 647,157 searches. Data last updated 31 March 2025.
Use the filters below to find and compare flights from Australia to Ontario that are best for you.

Fly from

Australia

Fly to

Ontario

Route

Depart

Return

Price

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Wed 13/8

16:20-21:27

1 stop22h 07m

Ontario

Sat 16/8

09:00-14:40

1 stop36h 40m

$1,336

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 22/5

21:40-21:55

1 stop17h 15m

Ontario

Wed 4/6

09:50-19:45

1 stop40h 55m

$1,628

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Sat 19/4

12:55-07:29

2 stops35h 34m

Ontario

Fri 25/4

18:14-12:15

2 stops49h 01m

$1,684

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Thu 15/5

22:10-18:00

1 stop36h 50m

Ontario

Sun 7/9

00:45-10:45

1 stop41h 00m

$1,748

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Sat 6/9

22:50-18:40

1 stop36h 50m

Ontario

Sat 11/10

00:10-10:35

1 stop41h 25m

$1,771

SydneyOntario

SYD - ONT

SYDONT

Sydney Kingsford Smith

Tue 26/8

10:20-12:13

1 stop18h 53m

Ontario

Tue 9/9

18:36-06:55

1 stop19h 19m

$1,791

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Fri 30/5

21:50-18:00

1 stop37h 10m

Ontario

Thu 26/6

00:10-10:40

1 stop41h 30m

$1,806

MelbourneOntario

MEL - ONT

MELONT

Melbourne

Tue 3/6

10:55-17:25

2 stops23h 30m

Ontario

Wed 18/6

18:41-08:15

1 stop20h 34m

$1,876

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Wed 4/6

18:15-18:00

2 stops40h 45m

Ontario

Mon 23/6

00:10-10:35

1 stop41h 25m

$2,015

BrisbaneOntario

BNE - ONT

BNEONT

Brisbane

Fri 19/9

10:30-12:13

1 stop18h 43m

Ontario

Wed 8/10

18:27-06:30

1 stop19h 03m

$2,062

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 45 results
1
2
3
...
5

Best time to book a flight from Australia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Australia 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 Australia to Ontario

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

Find hourly flight availability from Australia to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 March 2025.

When flying from Australia to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 31 March 2025.
Get a feel of what it's like to fly with Japan Airlines, China Airlines and Hawaiian Airlines from Australia to Ontario by reading reviews from past customers. 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.

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Food

7.7

Crew

8.7

Entertainment

7.8

Boarding

8.4

Comfort

8.2

Overall

8.3

Reviews

1 / 20
10.0
Excellent

L,Nov 2024

SNA - SEA

Excellent crew, great food and decent audio selection. Seats are wide and have plenty of leg room but could use some more padding.

Related info for your journey

Find useful and relevant information for your journey from Australia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Ontario from Australia?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Australia. Ontario is conveniently located just 4.9 km from Ontario’s city centre.

  • What are the cheapest airlines to fly from Australia to Ontario one-way?

    $1,067 is the cheapest one-way deal found within the past few days, from China Airlines. You may also be able to find cheap deals on Hawaiian Airlines and United Airlines, with prices starting from $1,131 and $1,174, respectively.

  • What are the most popular routes from Australia to Ontario?

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

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

  • How can I find direct flights from Australia to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Australia 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

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

Top airline flying from Australia to Ontario

Discover the top airline that operate flights from Australia to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 31 March 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,109Average$1,967FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 Australia to Ontario?

Cheapflights makes it easy to find Australia 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 Australia to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Australia.

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

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

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

Not ready to book yet? You can track prices for flights from Australia to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.