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Cheap flights from Ontario to Adelaide from $1,039

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ADL
27 Dec — 3 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Ontario to Adelaide

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Adelaide
Explore the most affordable flight options available from Ontario to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 November 2025.

Thu 4/1218:20YUL - ADL
2 stops32h 20mMultiple Airlines
Thu 15/106:10ADL - YUL
2 stops30h 20mMultiple Airlines
Deal found 26/11$2,243
Thu 4/1209:00YUL - ADL
2 stops34h 25mAir Canada
Thu 15/106:10ADL - YUL
2 stops30h 20mAir Canada
Deal found 25/11$2,445
Wed 10/1210:30YOW - ADL
2 stops55h 30mUnited Airlines
Wed 31/1214:55ADL - YOW
2 stops24h 29mUnited Airlines
Deal found 25/11$3,010
Mon 15/1217:55YUL - ADL
2 stops50h 50mMultiple Airlines
Thu 15/113:15ADL - YUL
2 stops42h 42mMultiple Airlines
Deal found 26/11$3,578
Wed 24/1206:30YYZ - ADL
2 stops36h 55mMultiple Airlines
Wed 31/1211:55ADL - YYZ
2 stops26h 12mMultiple Airlines
Deal found 26/11$3,675
Sat 20/1217:14YYZ - ADL
2 stops48h 41mQantas Airways
Sat 27/1206:35ADL - YYZ
2 stops31h 39mQantas Airways
Deal found 26/11$3,862
Tue 23/1220:50YUL - ADL
2 stops45h 40mQatar Airways
Tue 30/1222:00ADL - YUL
1 stop31h 35mQatar Airways
Deal found 25/11$3,888
Mon 15/1213:25YUL - ADL
2 stops30h 00mMultiple Airlines
Mon 19/112:35ADL - YUL
2 stops46h 21mMultiple Airlines
Deal found 26/11$3,913
Wed 10/1220:25YOW - ADL
3 stops49h 50mMultiple Airlines
Wed 31/1206:00ADL - YOW
2 stops25h 15mMultiple Airlines
Deal found 25/11$3,927
Tue 16/1214:29YUL - ADL
3 stops31h 46mMultiple Airlines
Wed 21/107:50ADL - YUL
3 stops30h 39mMultiple Airlines
Deal found 26/11$3,948
Wed 24/1218:50YYZ - ADL
2 stops26h 50mUnited Airlines
Wed 31/1214:55ADL - YYZ
1 stop24h 48mUnited Airlines
Deal found 26/11$4,104
Sat 20/1217:25YYZ - ADL
3 stops72h 35mUnited Airlines
Sat 27/1214:55ADL - YYZ
2 stops24h 21mUnited Airlines
Deal found 26/11$4,194

Cheap flight deals from Ontario to Adelaide

Keep the following information in mind while searching for Ontario to Adelaide flight deals. Data was last updated 27 November 2025.

Round-trip from

$1,682

One-way from

$1,039

Popular in

December

Cheapest in

October

Average price

$2,640
United Airlines
  • United Airlines
  • 24/1-16/3
  • 4 total stops
  • 55h 36m total
  • Ontario to Adelaide
Search Deals
2/12
  • 2/12
  • 2 total stops
  • 35h 35m total
  • Ontario to Adelaide
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($464 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($119 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Adelaide 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 27 November 2025.
Use the filters below to find and compare flights from Ontario to Adelaide that are best for you.

Fly from

Ontario

Fly to

Adelaide

Route

Depart

Return

Price

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Thu 22/1

10:00-09:30

2 stops32h 00m

Adelaide

Wed 18/3

13:55-07:30

1 stop32h 05m

$1,682

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Thu 22/1

11:00-09:30

2 stops31h 00m

Adelaide

Mon 16/3

13:55-16:52

1 stop41h 27m

$1,682

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Wed 21/1

21:00-09:30

2 stops45h 00m

Adelaide

Wed 18/3

13:55-23:59

2 stops24h 34m

$1,682

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Fri 23/1

21:00-09:30

2 stops45h 00m

Adelaide

Wed 18/3

13:55-23:59

2 stops24h 34m

$1,682

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Sat 24/1

17:55-09:30

1 stop24h 05m

Adelaide

Mon 16/3

13:55-07:30

1 stop32h 05m

$1,682

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Fri 23/1

14:45-09:30

2 stops51h 15m

Adelaide

Mon 16/3

13:55-23:59

2 stops24h 34m

$1,687

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Sat 24/1

17:55-09:30

1 stop24h 05m

Adelaide

Wed 18/3

13:55-23:59

2 stops24h 34m

$1,687

MontrealAdelaide

YUL - ADL

YULADL

Montreal Pierre Elliott Trudeau Intl

Thu 14/5

22:30-11:10

2 stops47h 10m

Adelaide

Mon 18/5

18:50-16:42

2 stops35h 22m

$1,759

MontrealAdelaide

YUL - ADL

YULADL

Montreal Pierre Elliott Trudeau Intl

Sat 10/1

17:50-10:55

2 stops49h 35m

Adelaide

Sat 17/1

09:30-16:43

2 stops46h 43m

$2,966

OttawaAdelaide

YOW - ADL

YOWADL

Ottawa

Wed 10/12

10:30-09:30

2 stops55h 30m

Adelaide

Wed 31/12

14:55-23:54

2 stops24h 29m

$3,010

Flights are sorted by cheapest return flights first.

Deals found on 25/11

Showing 1-10 of 24 results
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Best time to book a flight from Ontario to Adelaide

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

What is the cheapest month to book a flight from Region of Ontario to Adelaide?

Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Adelaide (average of $1,602). Flying from Region of Ontario to Adelaide in July is currently the most expensive (average of $2,800). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to ADL?

Find hourly flight availability from Ontario to Adelaide. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 November 2025.

When flying from Region of Ontario to Adelaide, 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 35% versus a flight in the evening.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Adelaide. 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 Adelaide from Ontario?

    Adelaide (ADL) is the airport you will fly into if you book a flight from Ontario to Adelaide. It is only a 6.6 km journey from Adelaide (ADL) to Adelaide’s city centre.

  • How long is the flight from Region of Ontario to Adelaide?

    Airlines like United Airlines and Air Canada fly from Region of Ontario to Adelaide in about 32h. The time it takes to get you to your destination can typically vary by up to 15h 10m. Region of Ontario and Adelaide are separated by a distance of 16613 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Region of Ontario to Adelaide?

    The most popular route from Region of Ontario to Adelaide is Montreal Pierre Elliott Trudeau Intl - Adelaide. You may also consider Toronto Pearson Intl - Adelaide or Ottawa - Adelaide.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Region of Ontario to Adelaide?

    Currently, August is the cheapest month in which you can book a flight from Region of Ontario to Adelaide (average of $1,602). Flying from Region of Ontario to Adelaide in July is currently the most expensive (average of $2,800). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Adelaide.

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

Need flexible booking options for your flight to Adelaide from Ontario? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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