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Cheap flights from Cairns to Sydney from £78

CNS — SYD
31 Oct — 7 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 23/1006:45 -
Nonstop3h 00m
Sun 25/1006:20 -
Nonstop3h 00m
Deal found 28/9£127
Wed 21/1006:45 -
Nonstop3h 00m
Fri 23/1020:15 -
Nonstop3h 10m
Deal found 28/9£128
Sat 17/1018:10 -
Nonstop2h 55m
Mon 19/1020:15 -
Nonstop3h 10m
Deal found 1/10£137
Sun 18/1006:45 -
Nonstop3h 00m
Sat 24/1006:10 -
Nonstop3h 10m
Deal found 29/9£138
Sat 17/1018:10 -
Nonstop2h 55m
Sun 18/1006:10 -
Nonstop3h 10m
Deal found 30/9£149
Thu 22/1018:10 -
Nonstop2h 55m
Tue 3/1106:20 -
Nonstop3h 00m
Deal found 29/9£159
Thu 19/1117:35 -
Nonstop3h 00m
Tue 24/1108:10 -
Nonstop3h 05m
Deal found 28/9£161
Tue 20/1018:10 -
Nonstop2h 55m
Thu 29/1011:25 -
Nonstop3h 05m
Deal found 1/10£168
Fri 30/1018:05 -
Nonstop3h 00m
Fri 6/1115:25 -
Nonstop3h 05m
Deal found 29/9£170
Wed 14/1006:45 -
Nonstop3h 00m
Fri 16/1020:15 -
Nonstop3h 10m
Deal found 28/9£176

Find flight deals from Cairns to Sydney

Round-trip from

£127

One-way from

£78

Popular in

September

Cheapest in

January

Average price

£188

Good one-way deal

£82 or less
Jetstar
  • Jetstar
  • 23/10-25/10
  • Nonstop
  • 6h 00m total
  • Cairns to Sydney
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Jetstar
  • Jetstar
  • 20/10-31/12
  • Nonstop
  • 2h 55m total
  • Cairns to Sydney
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£11 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return 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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Depart

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Price

Cheapest return flight

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Wed 18/11

06:40-10:40

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£78

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 28/3

06:45-10:45

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£79

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 26/11

18:05-22:05

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£90

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 31/1

15:45-19:45

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£92

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 5/11

06:40-10:40

Nonstop3h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£103
Fastest return journey

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 16/10

18:10-22:05

Nonstop2h 55m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£103

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 6/11

11:40-18:40

1 stop6h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£114

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 5/11

14:40-20:40

1 stop5h 00m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£114

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sat 5/12

06:00-13:40

1 stop6h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£114

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 27/12

06:00-13:40

1 stop6h 40m

Sydney Kingsford Smith

Wed 31/12

00:00-00:00

Nonstop0h 00m

£115

Flights are sorted by cheapest return flights first.

Deals found on 27/9

Showing 1-10 of 22 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 return 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 price you pay for your flight from Cairns to Sydney may vary depending on when you book. For the best chance of a lower fare, look to book 90 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 £118). Flying from Cairns to Sydney in September is currently the most expensive (average of £189). 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 for a return flight from Cairns to Sydney?

Airfare is below average for this route at the moment.

Cairns to Sydney flights typically cost between £136 and £246 in October.
The cheapest return price found within the last 5 days was £127 on Jetstar (23 Oct–25 Oct).

Related info for your journey

  • How popular is this Cairns to Sydney flight route?

    Flights from Cairns to Sydney Kingsford Smith have been viewed 9 times in the past calendar month.

  • How long is the flight from Cairns to Sydney?

    Jetstar and Virgin Australia can get you from Cairns to Sydney in just under 2h 55m. Your travel time will be generally consistent. The distance between Cairns and Sydney is about 1224 mi. Generally, flights for this route are direct.

  • What are the cheapest airlines to fly from Cairns to Sydney one-way?

    £53 is the cheapest one-way deal found within the past few days, from Jetstar. You may also be able to find cheap deals on Virgin Australia and Qantas Airways, with prices starting from £68 and £91, respectively.

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

    Before booking your flight to Sydney from Cairns, check out the most reliable airlines to get you to your destination on time: Qatar Airways (91%), Virgin Australia (86%), Singapore Airlines( 86%).

  • What are the cheapest flights from Cairns to Sydney?

    The cheapest flight price from Cairns to Sydney is £75. On average you can expect to pay £97. The most popular route, (Cairns - Sydney Kingsford Smith), can usually be booked for £200.

  • 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 holiday 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 £118). Flying from Cairns to Sydney in September is currently the most expensive (average of £189). 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

Travelling to a place near Sydney?

Book flights to Sydney if you plan to visit one of these locations
Wollongong
Parramatta
Bondi Beach
Coogee

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Alternative routes for Cairns to Sydney

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