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Cheap flights from Cairns to Sydney from C$ 147

CNS — SYD
29 Oct — 5 Nov1
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 23/106:45 a.m. -
Nonstop3h 00m
Sun 25/106:20 a.m. -
Nonstop3h 00m
Deal found 28/9C$ 238
Wed 21/106:45 a.m. -
Nonstop3h 00m
Fri 23/108:15 p.m. -
Nonstop3h 10m
Deal found 28/9C$ 241
Thu 22/106:10 p.m. -
Nonstop2h 55m
Sun 25/106:20 a.m. -
Nonstop3h 00m
Deal found 28/9C$ 258
Sat 17/106:45 a.m. -
Nonstop3h 00m
Sun 18/106:10 a.m. -
Nonstop3h 10m
Deal found 25/9C$ 261
Fri 30/106:05 p.m. -
Nonstop3h 00m
Fri 6/113:25 p.m. -
Nonstop3h 05m
Deal found 29/9C$ 319
Wed 14/106:45 a.m. -
Nonstop3h 00m
Fri 16/108:15 p.m. -
Nonstop3h 10m
Deal found 28/9C$ 330
Wed 11/116:05 p.m. -
Nonstop3h 00m
Thu 12/116:20 a.m. -
Nonstop3h 00m
Deal found 25/9C$ 341
Fri 23/106:10 p.m. -
Nonstop2h 55m
Fri 30/1011:25 a.m. -
Nonstop3h 05m
Deal found 25/9C$ 347
Wed 4/116:40 a.m. -
Nonstop3h 00m
Sun 8/116:20 a.m. -
Nonstop3h 00m
Deal found 25/9C$ 365
Thu 15/106:45 a.m. -
Nonstop3h 00m
Sat 17/108:15 p.m. -
Nonstop3h 10m
Deal found 29/9C$ 380

Find flight deals from Cairns to Sydney

Round-trip from

C$ 238

One-way from

C$ 147

Popular in

September

Cheapest in

January

Average price

C$ 354
Jetstar
  • Jetstar
  • 23/10-25/10
  • Nonstop
  • 6h 00m total
  • Cairns to Sydney
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Jetstar
  • Jetstar
  • 18/11-31/12
  • Nonstop
  • 3h 00m total
  • Cairns to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 39 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease (C$ 5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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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

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Price

Cheapest round-trip
Quickest round-trip

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 28/3

6:45 a.m.-10:45 a.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

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

Nonstop0h 00m

C$ 149

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Tue 3/11

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$ 149

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 26/2

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$ 149

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Tue 9/3

3:45 p.m.-7:45 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

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

Nonstop0h 00m

C$ 153

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 7/2

5:35 p.m.-9:35 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

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

Nonstop0h 00m

C$ 153

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 25/12

3:45 p.m.-7:45 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

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

Nonstop0h 00m

C$ 154

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 26/11

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$ 169

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 30/10

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$ 171

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sat 7/11

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$ 197

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 9/10

6:00 a.m.-1:40 p.m.

1 stop6h 40m

Sydney Kingsford Smith

Wed 31/12

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

Nonstop0h 00m

C$ 217

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/9

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$ 222). Flying from Cairns to Sydney in September is currently the most expensive (average of C$ 354). 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$ 256 and C$ 462 in October.
The cheapest round-trip price found within the last 5 days was C$ 238 on Jetstar (23 Oct-25 Oct).

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. Both multi-stop and direct flights can be found to your destination and back.

  • 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 (91%), Virgin Australia (86%), Singapore Airlines (86%).

  • 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$ 222). Flying from Cairns to Sydney in September is currently the most expensive (average of C$ 354). 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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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Cairns today and book when prices fit your budget.

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