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Cheap flights from Ontario to Cairns from $1,325

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Cairns departing on 23/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Cairns

Cheap return flights

Enter your travel dates to find the best prices.
Qatar Airways Logo
20:50 - 11:05YUL  Montreal Pierre Elliott Trudeau Intl-CNS Cairns
47h 15m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
11:45 - 14:05CNS  Cairns-YUL Montreal Pierre Elliott Trudeau Intl
41h 20m2 stops Melbourne Doha Hamad Intl
$2,291Qatar Airways
Thu, 4 Feb - Mon, 8 Feb
Multiple Airlines Logo
16:15 - 11:40YYZ  Toronto Pearson Intl-CNS Cairns
29h 25m2 stops Vancouver Intl Nadi
Multiple Airlines Logo
12:40 - 20:50CNS  Cairns-YYZ Toronto Pearson Intl
46h 10m2 stops Nadi Vancouver Intl
$2,320Multiple Airlines
Thu, 17 Sep - Thu, 1 Oct
Qatar Airways Logo
20:50 - 11:05YUL  Montreal Pierre Elliott Trudeau Intl-CNS Cairns
47h 15m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
11:45 - 14:05CNS  Cairns-YUL Montreal Pierre Elliott Trudeau Intl
41h 20m2 stops Melbourne Doha Hamad Intl
$2,356Qatar Airways
Sat, 6 Feb - Wed, 10 Feb
Qatar Airways Logo
20:50 - 11:05YUL  Montreal Pierre Elliott Trudeau Intl-CNS Cairns
47h 15m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
11:45 - 14:05CNS  Cairns-YUL Montreal Pierre Elliott Trudeau Intl
41h 20m2 stops Melbourne Doha Hamad Intl
$2,362Qatar Airways
Sat, 6 Feb - Wed, 10 Feb
Qatar Airways Logo
20:50 - 11:05YUL  Montreal Pierre Elliott Trudeau Intl-CNS Cairns
47h 15m2 stops Doha Hamad Intl Melbourne
Qatar Airways Logo
11:45 - 14:05CNS  Cairns-YUL Montreal Pierre Elliott Trudeau Intl
41h 20m2 stops Melbourne Doha Hamad Intl
$2,368Qatar Airways
Sat, 6 Feb - Wed, 10 Feb
Multiple Airlines Logo
07:45 - 11:50YYZ  Toronto Pearson Intl-CNS Cairns
37h 05m3 stops Calgary Los Angeles Los Angeles Sydney Kingsford Smith
Multiple Airlines Logo
06:00 - 06:13CNS  Cairns-YYZ Toronto Pearson Intl
38h 13m3 stops Brisbane Los Angeles Los Angeles Calgary
$2,690Multiple Airlines
Sun, 1 Nov - Thu, 1 Apr
Qatar Airways Logo
20:10 - 11:00YYZ  Toronto Pearson Intl-CNS Cairns
47h 50m2 stops Doha Hamad Intl Brisbane
Qatar Airways Logo
15:45 - 14:30CNS  Cairns-YYZ Toronto Pearson Intl
61h 45m2 stops Sydney Kingsford Smith Doha Hamad Intl
$2,820Qatar Airways
Thu, 4 Feb - Mon, 8 Feb
Qatar Airways Logo
20:10 - 11:00YYZ  Toronto Pearson Intl-CNS Cairns
47h 50m2 stops Doha Hamad Intl Brisbane
Qatar Airways Logo
15:45 - 14:30CNS  Cairns-YYZ Toronto Pearson Intl
61h 45m2 stops Sydney Kingsford Smith Doha Hamad Intl
$2,827Qatar Airways
Thu, 4 Feb - Mon, 8 Feb
Qatar Airways Logo
21:00 - 23:20YYZ  Toronto Pearson Intl-CNS Cairns
36h 20m2 stops Doha Hamad Intl Brisbane
Qatar Airways Logo
21:00 - 15:00CNS  Cairns-YYZ Toronto Pearson Intl
56h 00m2 stops Melbourne Doha Hamad Intl
$2,878Qatar Airways
Sun, 20 Sep - Sun, 27 Sep
Multiple Airlines Logo
12:31 - 10:35YUL  Montreal Pierre Elliott Trudeau Intl-CNS Cairns
32h 04m3 stops Chicago O'Hare Intl Los Angeles Los Angeles Brisbane
Multiple Airlines Logo
14:40 - 07:05CNS  Cairns-YUL Montreal Pierre Elliott Trudeau Intl
30h 25m3 stops Sydney Kingsford Smith Vancouver Intl Calgary
$2,929Multiple Airlines
Thu, 24 Sep - Thu, 1 Oct

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Qatar Airways flights from Region of Ontario to Cairns

Our best Qatar Airways deals on Region of Ontario to Cairns flight tickets
Qatar Airways
4 Feb
YUL20:50Montreal Pierre Elliott Trudeau Intl
47h 15m
2 stops
CNS11:05Cairns
8 Feb
CNS11:45Cairns
41h 20m
2 stops
YUL14:05Montreal Pierre Elliott Trudeau Intl
$2,291
Qatar Airways
6 Feb
YUL20:50Montreal Pierre Elliott Trudeau Intl
47h 15m
2 stops
CNS11:05Cairns
10 Feb
CNS11:45Cairns
41h 20m
2 stops
YUL14:05Montreal Pierre Elliott Trudeau Intl
$2,356
Qatar Airways
6 Feb
YUL20:50Montreal Pierre Elliott Trudeau Intl
47h 15m
2 stops
CNS11:05Cairns
10 Feb
CNS11:45Cairns
41h 20m
2 stops
YUL14:05Montreal Pierre Elliott Trudeau Intl
$2,362

Air Canada flights from Region of Ontario to Cairns

Our best Air Canada deals on Region of Ontario to Cairns flight tickets
Air Canada
4 Feb
YUL11:10Montreal Pierre Elliott Trudeau Intl
36h 45m
3 stops
CNS14:55Cairns
8 Feb
CNS06:00Cairns
28h 35m
2 stops
YUL19:35Montreal Pierre Elliott Trudeau Intl
$3,295
Air Canada
6 Feb
YUL16:10Montreal Pierre Elliott Trudeau Intl
31h 45m
3 stops
CNS14:55Cairns
10 Feb
CNS06:00Cairns
26h 04m
2 stops
YUL17:04Montreal Pierre Elliott Trudeau Intl
$3,311
Air Canada
6 Feb
YUL13:10Montreal Pierre Elliott Trudeau Intl
34h 45m
3 stops
CNS14:55Cairns
10 Feb
CNS06:00Cairns
40h 10m
2 stops
YUL07:10Montreal Pierre Elliott Trudeau Intl
$3,321

momondo Fare Finder

 
Customise your flight search to find flights from Region of 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, momondo users made 78,305 searches. Data last updated 10 August 2026.
Use the filters below to find and compare flights from Ontario to Cairns that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

MontrealCairns

YUL Montreal Pierre Elliott Trudeau Intl - CNS Cairns

YULCNS

Montreal Pierre Elliott Trudeau Intl

Thu 4/2

20:50-11:05

2 stops47h 15m

Cairns

Mon 8/2

11:45-14:05

2 stops41h 20m

$2,291

TorontoCairns

YYZ Toronto Pearson Intl - CNS Cairns

YYZCNS

Toronto Pearson Intl

Thu 17/9

16:15-11:40

2 stops29h 25m

Cairns

Thu 1/10

12:40-20:50

2 stops46h 10m

$2,320

MontrealCairns

YUL Montreal Pierre Elliott Trudeau Intl - CNS Cairns

YULCNS

Montreal Pierre Elliott Trudeau Intl

Sat 6/2

20:50-11:05

2 stops47h 15m

Cairns

Wed 10/2

11:45-14:05

2 stops41h 20m

$2,356

MontrealCairns

YUL Montreal Pierre Elliott Trudeau Intl - CNS Cairns

YULCNS

Montreal Pierre Elliott Trudeau Intl

Sat 6/2

20:50-11:05

2 stops47h 15m

Cairns

Wed 10/2

11:45-14:05

2 stops41h 20m

$2,362

MontrealCairns

YUL Montreal Pierre Elliott Trudeau Intl - CNS Cairns

YULCNS

Montreal Pierre Elliott Trudeau Intl

Sat 6/2

20:50-11:05

2 stops47h 15m

Cairns

Wed 10/2

11:45-14:05

2 stops41h 20m

$2,368

TorontoCairns

YYZ Toronto Pearson Intl - CNS Cairns

YYZCNS

Toronto Pearson Intl

Sun 1/11

07:45-11:50

3 stops37h 05m

Cairns

Thu 1/4

06:00-06:13

3 stops38h 13m

$2,690

TorontoCairns

YYZ Toronto Pearson Intl - CNS Cairns

YYZCNS

Toronto Pearson Intl

Thu 4/2

20:10-11:00

2 stops47h 50m

Cairns

Mon 8/2

15:45-14:30

2 stops61h 45m

$2,820

TorontoCairns

YYZ Toronto Pearson Intl - CNS Cairns

YYZCNS

Toronto Pearson Intl

Thu 4/2

20:10-11:00

2 stops47h 50m

Cairns

Mon 8/2

15:45-14:30

2 stops61h 45m

$2,827

TorontoCairns

YYZ Toronto Pearson Intl - CNS Cairns

YYZCNS

Toronto Pearson Intl

Sun 20/9

21:00-23:20

2 stops36h 20m

Cairns

Sun 27/9

21:00-15:00

2 stops56h 00m

$2,878
Fastest return journey

MontrealCairns

YUL Montreal Pierre Elliott Trudeau Intl - CNS Cairns

YULCNS

Montreal Pierre Elliott Trudeau Intl

Thu 24/9

12:31-10:35

3 stops32h 04m

Cairns

Thu 1/10

14:40-07:05

3 stops30h 25m

$2,929

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cairns from

How to get the cheapest flight ticket from Region of Ontario to Cairns

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Cairns?

United Airlines is the most popular carrier operating from Ontario to Cairns

Cheap Region of Ontario to Cairns flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Cairns

Fastest flight time

26h 16m

Direct flights

None
The fastest flight from Region of Ontario to Cairns takes 26h 16m
There are no direct flights from Region of Ontario to Cairns. There are no popular flight routes from Region of Ontario to Cairns.
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Frequently asked questions about flying from Ontario to Cairns

  • When did momondo last update prices for flights from Ontario to Cairns Airport?

    Prices for flights from Ontario to Cairns Airport are updated daily.

  • How old do you have to be to fly from Ontario to Cairns Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Cairns Airport.

  • What documentation or ID do you need to fly to Cairns Airport?

    The required travel and health documents for your Cairns Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Cairns Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Cairns?

Book flights to Cairns if you plan to visit one of these locations
Port Douglas
Palm Cove
Mission Beach
Trinity Beach

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Cairns?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cairns from Ontario.

Can I find flights from Ontario to Cairns with flexible booking policies on momondo?

All flight searches from Ontario to Cairns on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Cairns?

momondo helps you find the best flight between Ontario and Cairns by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Cairns right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Cairns flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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