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Cheap flights from Cairns to Sydney from C$ 151

CNS — SYD
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cairns to Sydney

Enter your travel dates to find the best prices.

Cheapest flights from Cairns to Sydney

Fri 4/126:05 p.m. -
Nonstop3h 00m
Tue 8/126:20 a.m. -
Nonstop3h 00m
Deal found 25/10C$ 275
Sat 5/126:40 a.m. -
Nonstop3h 00m
Sun 6/126:20 a.m. -
Nonstop3h 00m
Deal found 25/10C$ 287
Sat 12/126:05 p.m. -
Nonstop3h 00m
Sun 13/1211:25 a.m. -
Nonstop3h 05m
Deal found 22/10C$ 303
Mon 7/126:05 p.m. -
Nonstop3h 00m
Mon 14/128:30 p.m. -
Nonstop3h 05m
Deal found 23/10C$ 304
Fri 27/116:05 p.m. -
Nonstop3h 00m
Sun 29/116:20 a.m. -
Nonstop3h 00m
Deal found 25/10C$ 319
Wed 9/126:05 p.m. -
Nonstop3h 00m
Wed 16/1211:25 a.m. -
Nonstop3h 05m
Deal found 24/10C$ 324
Thu 19/116:05 p.m. -
Nonstop3h 00m
Sat 21/116:20 a.m. -
Nonstop3h 00m
Deal found 22/10C$ 338
Wed 23/126:05 p.m. -
Nonstop3h 00m
Tue 5/18:30 p.m. -
Nonstop3h 05m
Deal found 26/10C$ 339
Sun 6/126:40 a.m. -
Nonstop3h 00m
Sun 13/126:20 a.m. -
Nonstop3h 00m
Deal found 22/10C$ 342
Wed 18/116:40 a.m. -
Nonstop3h 00m
Sat 21/116:20 a.m. -
Nonstop3h 00m
Deal found 23/10C$ 373
Fri 4/1211:40 a.m. -
1 stop6h 00m
Tue 8/128:10 a.m. -
Nonstop3h 05m
Deal found 23/10C$ 375

Find flight deals from Cairns to Sydney

Round-trip from

C$ 265

One-way from

C$ 151

Popular in

October

Cheapest in

January

Average price

C$ 373

Good one-way deal

C$ 142 or less
Jetstar
  • Jetstar
  • 23/1-25/1
  • Nonstop
  • 6h 05m total
  • Cairns to Sydney
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Virgin Australia
  • Virgin Australia
  • 18/12-31/12
  • Nonstop
  • 3h 00m total
  • Cairns to Sydney
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Highest demand for flights based on searches. 8% potential increase in price (C$ 42 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 7 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a one-way flight from Cairns to Sydney Kingsford Smith.
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Cairns to Sydney that are best for you.

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 8/1

6:40 a.m.-10:40 a.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 167

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Wed 11/11

6:05 p.m.-10:05 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 216

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 28/3

1:55 p.m.-10:20 p.m.

1 stop7h 25m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 224

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 20/11

9:15 a.m.-2:40 p.m.

1 stop4h 25m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 224

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 7/1

2:40 p.m.-10:25 p.m.

1 stop6h 45m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 224

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 31/12

2:40 p.m.-10:25 p.m.

1 stop6h 45m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 224

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Wed 25/11

2:40 p.m.-10:25 p.m.

1 stop6h 45m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 226

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Mon 19/4

11:55 a.m.-5:40 p.m.

1 stop5h 45m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 226

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Tue 2/2

6:00 a.m.-11:40 a.m.

1 stop4h 40m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 226

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Wed 11/11

11:40 a.m.-6:40 p.m.

1 stop6h 00m

Sydney Kingsford Smith

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 226

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Cairns to Sydney

Have a flexible travel schedule? Discover the best time to fly to Sydney from Cairns with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Cairns to Sydney

How far ahead should I book a flight from Cairns to Sydney?

The best time to book flights from Cairns to Sydney is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Cairns to Sydney?

Currently, January is the cheapest month in which you can book a flight from Cairns to Sydney (average of C$ 228). Flying from Cairns to Sydney in October is currently the most expensive (average of C$ 373). 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 CNS to SYD?

When flying from Cairns to Sydney, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Cairns to Sydney?

Airfare is below average for this route at the moment.

Cairns to Sydney flights typically cost between C$ 268 and C$ 428 in January.
The cheapest round-trip price found within the last 5 days was C$ 265 on Jetstar (23 Jan-25 Jan).

Related info for your journey

  • How popular is this Cairns to Sydney flight route?

    This flight path from Cairns to Sydney Kingsford Smith was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Cairns to Sydney?

    Departing from Cairns to Sydney will take you 3h. Cairns and Sydney are separated by a distance of 1970 km. Generally, flights for this route are direct.

  • What are the most reliable airlines from Cairns to Sydney?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Cairns to Sydney on time: Qatar Airways (80%), IndiGo (77%), Air Canada (75%).

  • What are the cheapest flights from Cairns to Sydney?

    The cheapest flight price from Cairns to Sydney is C$ 135. On average you can expect to pay C$ 151. The most popular route, (Cairns - Sydney Kingsford Smith), can usually be booked for C$ 371.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cairns to Sydney 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 Cairns to Sydney?

    Currently, January is the cheapest month in which you can book a flight from Cairns to Sydney (average of C$ 228). Flying from Cairns to Sydney in October is currently the most expensive (average of C$ 373). 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

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