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Cheap flights from Ontario to Adelaide from $1,034

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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ADL
17 Dec — 24 Dec1
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 17 November 2025.

Thu 4/1213:25YUL - ADL
2 stops30h 00mMultiple Airlines
Thu 15/106:10ADL - YUL
2 stops30h 20mMultiple Airlines
Deal found 15/11$2,247
Thu 4/1213:25YUL - ADL
2 stops30h 00mAir Canada
Thu 15/106:00ADL - YUL
3 stops32h 52mAir Canada
Deal found 15/11$2,269
Sun 30/1118:40YYZ - ADL
2 stops27h 55mMultiple Airlines
Sun 7/1206:00ADL - YYZ
2 stops29h 05mMultiple Airlines
Deal found 16/11$2,360
Fri 5/1220:20YYZ - ADL
2 stops47h 05mMultiple Airlines
Mon 22/1220:00ADL - YYZ
2 stops36h 29mMultiple Airlines
Deal found 15/11$2,374
Mon 17/1122:35YYZ - ADL
2 stops52h 05mAir Canada
Mon 24/1119:55ADL - YYZ
2 stops42h 57mAir Canada
Deal found 16/11$2,591
Sun 16/1100:35YYZ - ADL
2 stops38h 10mMultiple Airlines
Mon 24/1106:25ADL - YYZ
2 stops45h 20mMultiple Airlines
Deal found 16/11$2,630
Thu 20/1116:55YYZ - ADL
2 stops29h 15mMultiple Airlines
Thu 27/1113:40ADL - YYZ
2 stops32h 30mMultiple Airlines
Deal found 15/11$2,825
Tue 23/1218:45YYZ - ADL
2 stops36h 15mMultiple Airlines
Sat 27/1208:30ADL - YYZ
3 stops47h 59mMultiple Airlines
Deal found 16/11$2,978
Fri 5/1208:05YYZ - ADL
2 stops35h 20mUnited Airlines
Mon 22/1214:55ADL - YYZ
1 stop32h 05mUnited Airlines
Deal found 15/11$3,000
Wed 19/1100:35YYZ - ADL
2 stops47h 40mCathay Pacific
Thu 27/1106:05ADL - YYZ
2 stops45h 40mCathay Pacific
Deal found 15/11$3,088
Sun 16/1100:35YYZ - ADL
1 stop42h 25mCathay Pacific
Mon 24/1119:00ADL - YYZ
2 stops32h 45mCathay Pacific
Deal found 16/11$3,163
Tue 30/1208:00YUL - ADL
3 stops36h 20mMultiple Airlines
Tue 6/114:45ADL - YUL
3 stops46h 59mMultiple Airlines
Deal found 15/11$3,575

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 17 November 2025.

Round-trip from

$2,247

One-way from

$1,034

Popular in

December

Cheapest in

October

Average price

$2,689
4/12-15/1
  • 4/12-15/1
  • 4 total stops
  • 58h 46m total
  • Ontario to Adelaide
Search Deals
9/3
  • 9/3
  • 3 total stops
  • 50h 05m total
  • Ontario to Adelaide
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($486 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($116 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 17 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

MontrealAdelaide

YUL - ADL

YULADL

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

13:25-10:55

2 stops30h 00m

Adelaide

Thu 15/1

06:10-21:00

2 stops30h 20m

$2,247

MontrealAdelaide

YUL - ADL

YULADL

Montreal Pierre Elliott Trudeau Intl

Thu 4/12

13:25-10:55

2 stops30h 00m

Adelaide

Thu 15/1

06:00-23:22

3 stops32h 52m

$2,269

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Thu 12/2

13:30-12:15

2 stops31h 15m

Adelaide

Sat 28/2

13:15-05:37

2 stops31h 52m

$2,388

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Thu 15/1

16:10-09:30

2 stops25h 50m

Adelaide

Mon 16/2

14:55-23:59

2 stops24h 34m

$2,578

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Sun 30/11

18:40-13:45

2 stops27h 35m

Adelaide

Sun 7/12

13:40-16:59

3 stops42h 49m

$2,657

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Thu 12/2

17:55-09:30

1 stop24h 05m

Adelaide

Sat 28/2

14:55-07:30

1 stop32h 05m

$2,703

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Thu 15/1

10:00-09:50

2 stops32h 20m

Adelaide

Mon 16/2

08:05-06:40

3 stops38h 05m

$2,760

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Fri 5/12

08:05-10:55

2 stops35h 20m

Adelaide

Mon 22/12

14:55-07:30

1 stop32h 05m

$3,000

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Fri 5/12

07:05-11:50

3 stops37h 15m

Adelaide

Mon 22/12

20:00-22:44

2 stops42h 14m

$3,222

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Sun 4/1

09:35-17:45

3 stops40h 40m

Adelaide

Wed 4/2

06:00-07:10

3 stops40h 40m

$3,277

Flights are sorted by cheapest return flights first.

Deals found on 16/11

Showing 1-10 of 30 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 $1,594). Flying from Region of Ontario to Adelaide in July is currently the most expensive (average of $2,786). 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 17 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 Air Canada, United Airlines, and Air New Zealand fly from Region of Ontario to Adelaide in about 25h 50m. The time it takes to get you to your destination can typically vary by up to 12h 35m. 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 Toronto Pearson Intl - Adelaide. You may also consider Montreal Pierre Elliott Trudeau 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 $1,594). Flying from Region of Ontario to Adelaide in July is currently the most expensive (average of $2,786). 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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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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