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Cheap flights from Ontario to Cairns from $945

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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — CNS
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Cairns

Enter your travel dates to find the best prices.

Cheapest flights from Ontario to Cairns
Explore the most affordable flight options available from Ontario to Cairns. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Tue 10/210:00
YYZ
-
CNS
2 stops34h 35m
Multiple Airlines
Tue 24/218:05
CNS
-
YYZ
3 stops45h 00m
Multiple Airlines
Deal found 20/1$2,227
Mon 13/420:10
YYZ
-
CNS
2 stops31h 00m
Multiple Airlines
Mon 27/419:10
CNS
-
YYZ
2 stops37h 47m
Multiple Airlines
Deal found 19/1$2,286
Wed 11/208:00
YYZ
-
CNS
2 stops36h 00m
Multiple Airlines
Wed 15/406:00
CNS
-
YYZ
3 stops38h 44m
Multiple Airlines
Deal found 21/1$2,301
Mon 20/713:05
YUL
-
CNS
1 stop25h 25m
Multiple Airlines
Thu 20/806:00
CNS
-
YUL
2 stops27h 24m
Multiple Airlines
Deal found 21/1$3,082
Mon 20/718:25
YUL
-
CNS
2 stops50h 20m
Air New Zealand
Thu 20/811:55
CNS
-
YUL
2 stops32h 48m
Air New Zealand
Deal found 21/1$3,088
Fri 3/713:05
YUL
-
CNS
1 stop25h 25m
Multiple Airlines
Fri 17/706:00
CNS
-
YUL
2 stops27h 24m
Multiple Airlines
Deal found 21/1$3,270
Sun 15/220:50
YUL
-
CNS
2 stops35h 15m
Qatar Airways
Thu 19/211:45
CNS
-
YUL
2 stops41h 20m
Qatar Airways
Deal found 19/1$3,524
Mon 20/718:30
YUL
-
CNS
3 stops55h 25m
Air Canada
Thu 20/806:00
CNS
-
YUL
2 stops39h 10m
Air Canada
Deal found 21/1$3,558
Sun 15/206:45
YUL
-
CNS
2 stops36h 10m
Cathay Pacific
Thu 19/211:25
CNS
-
YUL
2 stops28h 13m
Cathay Pacific
Deal found 20/1$3,789

Find flight deals from Ontario to Cairns

Keep the following information in mind while searching for Ontario to Cairns flight deals. Data was last updated 22 January 2026.

Round-trip from

$2,227

One-way from

$945
10/2-24/2
  • 10/2-24/2
  • 5 total stops
  • 79h 35m total
  • Ontario to Cairns
Search Deals
4/3
  • 4/3
  • 2 total stops
  • 49h 50m total
  • Ontario to Cairns
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Ontario to Cairns 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 22 January 2026.
Use the filters below to find and compare flights from Ontario to Cairns that are best for you.

Fly from

Ontario

Fly to

Cairns

Route

Depart

Return

Price

TorontoCairns

YYZ - CNS

YYZCNS

Toronto Pearson Intl

Tue 10/2

10:00-11:35

2 stops34h 35m

Cairns

Tue 24/2

18:05-00:05

3 stops45h 00m

$2,227

TorontoCairns

YYZ - CNS

YYZCNS

Toronto Pearson Intl

Mon 13/4

20:10-17:10

2 stops31h 00m

Cairns

Mon 27/4

19:10-18:57

2 stops37h 47m

$2,286

TorontoCairns

YYZ - CNS

YYZCNS

Toronto Pearson Intl

Wed 11/2

08:00-11:00

2 stops36h 00m

Cairns

Wed 15/4

06:00-06:44

3 stops38h 44m

$2,301

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

13:05-04:30

1 stop25h 25m

Cairns

Thu 20/8

06:00-19:24

2 stops27h 24m

$3,082

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

18:25-10:45

2 stops50h 20m

Cairns

Thu 20/8

11:55-06:43

2 stops32h 48m

$3,088

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Fri 3/7

13:05-04:30

1 stop25h 25m

Cairns

Fri 17/7

06:00-19:24

2 stops27h 24m

$3,270

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

20:50-23:05

2 stops35h 15m

Cairns

Thu 19/2

11:45-14:05

2 stops41h 20m

$3,524

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Mon 20/7

18:30-15:55

3 stops55h 25m

Cairns

Thu 20/8

06:00-07:10

2 stops39h 10m

$3,558

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Sun 15/2

06:45-09:55

2 stops36h 10m

Cairns

Thu 19/2

11:25-00:38

2 stops28h 13m

$3,789

MontrealCairns

YUL - CNS

YULCNS

Montreal Pierre Elliott Trudeau Intl

Fri 3/7

16:40-15:55

3 stops33h 15m

Cairns

Fri 17/7

19:15-21:50

3 stops40h 35m

$4,746

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 17 results
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Best time to book a flight from Ontario to Cairns

Have a flexible travel schedule? Discover the best time to fly to Cairns 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 Cairns
No data available for this route at this time. Please check back soon.

Related info for your journey

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

    Most people fly into Cairns (CNS) if they book a flight to Cairns from Ontario. Cairns is conveniently located just 4.4 km from Cairns’s city centre.

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

    Airlines like Air New Zealand, Qatar Airways, and Air Canada fly from Region of Ontario to Cairns in about 35h 15m. The time it takes to get you to your destination can typically vary by up to 20h 10m. Region of Ontario and Cairns are separated by a distance of 15163 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Cairns 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

Travelling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Mission Beach
Trinity Beach

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When you search for this flight from Ontario to Cairns, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Ontario to Cairns 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 Ontario to Cairns with no change fees?

Need flexible booking options for your flight to Cairns 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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