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Cheap flights from Cairns to Ontario from $1,308

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 23/2. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — YYZ
3 Feb — 10 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cairns to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Cairns to Ontario
Explore the most affordable flight options available from Cairns to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 January 2026.

Thu 19/206:00CNS - YUL
2 stops26h 00mMultiple Airlines
Tue 7/407:30YUL - CNS
2 stops42h 25mMultiple Airlines
Deal found 4/1$2,091
Tue 17/206:00CNS - YUL
2 stops30h 00mAir Canada
Mon 6/413:25YUL - CNS
2 stops31h 45mAir Canada
Deal found 4/1$2,189
Wed 18/206:00CNS - YUL
2 stops26h 00mAir Canada
Mon 6/408:30YUL - CNS
2 stops36h 40mAir Canada
Deal found 4/1$2,244
Thu 26/206:00CNS - YUL
2 stops26h 00mAir Canada
Sat 28/318:20YUL - CNS
2 stops30h 35mAir Canada
Deal found 4/1$2,276
Fri 27/206:00CNS - YUL
2 stops26h 00mAir Canada
Mon 30/318:00YUL - CNS
2 stops27h 10mAir Canada
Deal found 4/1$2,277
Tue 17/206:00CNS - YUL
2 stops30h 00mAir Canada
Wed 8/418:00YUL - CNS
2 stops27h 10mAir Canada
Deal found 4/1$2,289
Thu 19/211:25CNS - YYZ
1 stop39h 50mCathay Pacific
Sun 22/200:35YYZ - CNS
2 stops49h 15mCathay Pacific
Deal found 2/1$2,320
Tue 17/206:00CNS - YUL
2 stops28h 25mAir Canada
Sun 5/413:25YUL - CNS
2 stops31h 45mAir Canada
Deal found 4/1$2,322
Tue 17/206:00CNS - YUL
2 stops30h 00mAir Canada
Tue 7/408:30YUL - CNS
2 stops41h 25mAir Canada
Deal found 4/1$2,332
Mon 16/206:00CNS - YUL
2 stops26h 00mAir Canada
Mon 6/413:25YUL - CNS
2 stops31h 45mAir Canada
Deal found 4/1$2,334
Thu 19/206:00CNS - YYZ
2 stops25h 52mUnited Airlines
Mon 23/218:50YYZ - CNS
2 stops28h 10mUnited Airlines
Deal found 2/1$2,343

Find flight deals from Cairns to Ontario

Keep the following information in mind while searching for Cairns to Ontario flight deals. Data was last updated 4 January 2026.

Round-trip from

$2,320

One-way from

$1,130
Cathay Pacific
  • Cathay Pacific
  • 19/2-22/2
  • 3 total stops
  • 89h 05m total
  • Cairns to Ontario
Search Deals
23/2
  • 23/2
  • 3 total stops
  • 52h 15m total
  • Cairns to Ontario
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Cairns to Ontario 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 4 January 2026.
Use the filters below to find and compare flights from Cairns to Ontario that are best for you.

Fly from

Cairns

Fly to

Ontario

Route

Depart

Return

Price

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Tue 17/2

06:00-21:00

2 stops30h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 6/4

13:25-11:10

2 stops31h 45m

$2,189

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Thu 19/2

06:00-17:00

2 stops26h 00m

Montreal Pierre Elliott Trudeau Intl

Tue 7/4

11:10-15:55

3 stops38h 45m

$2,203

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Tue 3/3

06:00-17:00

2 stops26h 00m

Montreal Pierre Elliott Trudeau Intl

Sat 28/3

07:30-14:55

2 stops41h 25m

$2,276

CairnsToronto

CNS - YYZ

CNSYYZ

Cairns

Thu 19/2

11:25-12:15

1 stop39h 50m

Toronto Pearson Intl

Sun 22/2

00:35-16:50

2 stops49h 15m

$2,320

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Tue 17/2

06:00-06:44

2 stops39h 44m

Montreal Pierre Elliott Trudeau Intl

Thu 9/4

18:00-15:55

2 stops31h 55m

$2,332

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Mon 16/2

06:00-17:00

2 stops26h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 6/4

13:25-11:10

2 stops31h 45m

$2,334

CairnsToronto

CNS - YYZ

CNSYYZ

Cairns

Thu 19/2

06:00-16:52

2 stops25h 52m

Toronto Pearson Intl

Mon 23/2

18:50-14:00

2 stops28h 10m

$2,343

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Fri 27/2

06:00-19:25

2 stops28h 25m

Montreal Pierre Elliott Trudeau Intl

Sat 28/3

07:30-14:55

2 stops41h 25m

$2,362

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Thu 5/2

06:00-17:00

2 stops26h 00m

Montreal Pierre Elliott Trudeau Intl

Mon 9/2

18:20-14:00

2 stops28h 40m

$2,379

CairnsMontreal

CNS - YUL

CNSYUL

Cairns

Tue 17/2

06:00-21:00

2 stops30h 00m

Montreal Pierre Elliott Trudeau Intl

Fri 10/4

18:00-15:55

2 stops31h 55m

$2,421

Flights are sorted by cheapest return flights first.

Deals found on 3/1

Showing 1-10 of 15 results
1
2

Best time to book a flight from Cairns to Ontario

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

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated 4 January 2026.
Check out reviews from past customers who have flown with Cathay Pacific from Cairns to Ontario to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Cathay Pacific
7.6
Good
1,122 reviews
Check prices

Crew

8.1

Boarding

7.9

Entertainment

7.8

Food

7.3

Comfort

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.
Cathay Pacific
7.6
Good
1,122 reviews
Cathay Pacific
7.6
Good
1,122 reviews
Check prices

Crew

8.1

Boarding

7.9

Entertainment

7.8

Food

7.3

Comfort

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2026

HKG - CTS

I went to sleep without dinner, woke up about 4 hours before landing. I asked for breakfast, waited for an hour, nothing, I asked again, still nothing after 15 minutes. I then asked for coffee, when the coffee came after half an hour, it was cold. Crew manager apologised.

Related info for your journey

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

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

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

    Departing from Cairns to Region of Ontario will take you 25h 52m. The distance from Cairns to Region of Ontario is about 14820 km. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cairns to Ontario 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Cairns to Ontario

Discover the top airline that operate flights from Cairns to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 4 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$1,827Average$2,428FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Cairns to Ontario?

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

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 Cairns to Ontario.

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

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

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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