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Cheap flights from Ontario to Adelaide from $810

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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ADL
22 Mar — 29 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap 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 20 February 2026.

Mon 25/517:16
YYZ
-
ADL
2 stops30h 59m
Air New Zealand
Wed 3/606:00
ADL
-
YYZ
2 stops23h 44m
Air New Zealand
Deal found 19/2$2,102
Wed 6/517:16
YYZ
-
ADL
2 stops28h 19m
Multiple Airlines
Wed 20/506:05
ADL
-
YYZ
2 stops27h 15m
Multiple Airlines
Deal found 19/2$2,143
Sat 21/307:00
YUL
-
ADL
2 stops35h 00m
United Airlines
Sat 28/314:15
ADL
-
YUL
2 stops34h 55m
United Airlines
Deal found 19/2$2,214
Mon 4/518:35
YYZ
-
ADL
3 stops29h 30m
Multiple Airlines
Wed 20/510:10
ADL
-
YYZ
2 stops26h 15m
Multiple Airlines
Deal found 19/2$2,225
Mon 25/519:00
YYZ
-
ADL
2 stops37h 30m
Multiple Airlines
Tue 2/609:15
ADL
-
YYZ
2 stops44h 47m
Multiple Airlines
Deal found 17/2$2,255
Fri 10/711:00
YYZ
-
ADL
3 stops34h 35m
United Airlines
Tue 14/706:05
ADL
-
YYZ
2 stops27h 00m
United Airlines
Deal found 19/2$2,262
Tue 17/316:44
YYZ
-
ADL
3 stops30h 26m
Multiple Airlines
Thu 23/413:25
ADL
-
YYZ
2 stops30h 15m
Multiple Airlines
Deal found 18/2$2,275
Sun 19/422:15
YYZ
-
ADL
2 stops48h 10m
Multiple Airlines
Thu 30/413:25
ADL
-
YYZ
2 stops30h 15m
Multiple Airlines
Deal found 19/2$2,281
Thu 9/418:15
YYZ
-
ADL
2 stops29h 55m
Multiple Airlines
Wed 29/414:25
ADL
-
YYZ
2 stops29h 15m
Multiple Airlines
Deal found 18/2$2,288
Sun 8/314:13
YUL
-
ADL
2 stops52h 37m
United Airlines
Sat 21/314:15
ADL
-
YUL
2 stops44h 03m
United Airlines
Deal found 17/2$2,468
Mon 16/315:00
YUL
-
ADL
2 stops27h 50m
Air New Zealand
Mon 6/406:00
ADL
-
YUL
3 stops42h 10m
Air New Zealand
Deal found 19/2$2,488
Mon 16/314:13
YUL
-
ADL
2 stops28h 37m
Multiple Airlines
Mon 6/420:00
ADL
-
YUL
2 stops34h 26m
Multiple Airlines
Deal found 19/2$2,493

Find flight deals from Ontario to Adelaide

Keep the following information in mind while searching for Ontario to Adelaide flight deals. Data was last updated 20 February 2026.

Round-trip from

$2,102

One-way from

$810

Popular in

December

Cheapest in

October

Average price

$2,883
Air New Zealand
  • Air New Zealand
  • 25/5-3/6
  • 4 total stops
  • 54h 43m total
  • Ontario to Adelaide
Search Deals
6/4
  • 6/4
  • 3 total stops
  • 47h 50m total
  • Ontario to Adelaide
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($292 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($70 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 20 February 2026.
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

Sat 21/3

07:00-08:30

2 stops35h 00m

Adelaide

Sat 28/3

14:15-10:40

2 stops34h 55m

$2,214

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Mon 4/5

18:35-11:05

2 stops27h 00m

Adelaide

Wed 20/5

10:10-22:55

2 stops26h 15m

$2,234

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Tue 17/3

16:44-13:40

3 stops30h 26m

Adelaide

Thu 23/4

13:25-06:10

2 stops30h 15m

$2,275

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Mon 20/4

12:30-16:25

2 stops38h 25m

Adelaide

Mon 4/5

07:50-22:55

2 stops28h 35m

$2,366

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Mon 20/4

12:30-11:55

2 stops33h 55m

Adelaide

Tue 5/5

14:20-22:55

2 stops46h 05m

$2,376

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Tue 7/4

18:15-11:05

2 stops27h 20m

Adelaide

Tue 21/4

19:10-06:10

2 stops48h 30m

$2,393

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Mon 16/3

10:00-13:40

3 stops37h 10m

Adelaide

Tue 14/4

19:45-23:55

3 stops41h 40m

$2,456

MontrealAdelaide

YUL - ADL

YULADL

Montreal Pierre Elliott Trudeau Intl

Sun 8/3

14:13-09:20

2 stops52h 37m

Adelaide

Sat 21/3

14:15-19:48

2 stops44h 03m

$2,468

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Mon 20/4

07:00-13:45

3 stops41h 15m

Adelaide

Mon 4/5

06:40-19:50

2 stops26h 40m

$2,475

TorontoAdelaide

YYZ - ADL

YYZADL

Toronto Pearson Intl

Tue 21/4

07:00-11:05

3 stops38h 35m

Adelaide

Sun 3/5

06:05-00:04

2 stops31h 29m

$2,475

Flights are sorted by cheapest return flights first.

Deals found on 19/2

Showing 1-10 of 33 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 $1,476). Flying from Region of Ontario to Adelaide in July is currently the most expensive (average of $2,580). 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.

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, Qantas Airways, and Air New Zealand fly from Region of Ontario to Adelaide in about 27h 50m. The time it takes to get you to your destination can typically vary by up to 7h 10m. Region of Ontario and Adelaide are separated by a distance of 17048 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 $1,476). Flying from Region of Ontario to Adelaide in July is currently the most expensive (average of $2,580). 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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