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Sydney

$109+ Cheap flights from Cairns to Sydney (CNS - SYD)

CNS — SYD
Dec 9 — Dec 161
Wed 12/9
Wed 12/16
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Cairns to Sydney Kingsford Smith are usually found in January or April, booked 83 days in advance, depart on a Saturday or Friday and return on a Tuesday

Cheap flight deals from Cairns to Sydney

Cheapest flights from Cairns to Sydney

Sat 12/126:40 am -
Nonstop3h 00m
Sun 12/136:20 am -
Nonstop3h 00m
Deal found 11/8$197
Wed 12/96:05 pm -
Nonstop3h 00m
Fri 12/113:25 pm -
Nonstop3h 05m
Deal found 11/9$205
Sat 12/56:40 am -
Nonstop3h 00m
Sun 12/66:20 am -
Nonstop3h 00m
Deal found 11/4$218
Sun 12/136:40 am -
Nonstop3h 00m
Mon 12/143:25 pm -
Nonstop3h 05m
Deal found 11/5$224
Wed 12/26:40 am -
Nonstop3h 00m
Wed 12/96:20 am -
Nonstop3h 00m
Deal found 11/8$226
Fri 12/119:05 am -
Nonstop2h 55m
Sun 12/136:20 am -
Nonstop3h 00m
Deal found 11/8$233
Mon 12/76:05 pm -
Nonstop3h 00m
Mon 12/148:30 pm -
Nonstop3h 05m
Deal found 11/9$236
Thu 12/106:05 pm -
Nonstop3h 00m
Sun 12/136:20 am -
Nonstop3h 00m
Deal found 11/6$237

Find flight deals from Cairns to Sydney

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$185
(Jetstar)

One-way from

$109
(Kiwi.com)

Popular in

October

Cheapest in

January

Average price

$251

Good one-way deal

$183 or less
Provider with most accurate pricing for Cairns-Sydney Kingsford Smith flight deals.
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Provider most trusted by Cheapflights users for Cairns-Sydney Kingsford Smith flights.
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From Cairns to Sydney Kingsford Smith
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One-way flight from Cairns to Sydney Kingsford Smith
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Highest demand for flights based on searches. 10% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in November 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

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Price

Cheapest round-trip
Quickest round-trip

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 1/8

6:40 am-10:40 am

Nonstop3h 00m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$117

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Tue 1/5

6:40 am-10:40 am

Nonstop3h 00m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$119

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Wed 12/23

11:40 am-6:10 pm

1 stop5h 30m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sat 4/17

9:20 am-1:40 pm

1 stop4h 20m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Tue 12/22

2:40 pm-10:25 pm

1 stop6h 45m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Mon 3/8

6:00 am-11:40 am

1 stop4h 40m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Mon 3/22

6:00 am-11:40 am

1 stop4h 40m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 12/6

6:00 am-1:40 pm

1 stop6h 40m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 1/1

6:00 am-1:40 pm

1 stop6h 40m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sat 12/26

6:00 am-1:40 pm

1 stop6h 40m

Sydney Kingsford Smith

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Cairns to Sydney

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cairns to Sydney in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Cairns-Sydney flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cairns-Sydney flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cairns-Sydney flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Cairns-Sydney flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cairns-Sydney flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 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 $166). Flying from Cairns to Sydney in October is currently the most expensive (average of $266). 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?

It’s optimal to fly from Cairns to Sydney in the evening. By choosing this option you can save up to 90% on the cost of your flight, compared to a flight at noon.

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 $187 and $314 in January.
The cheapest round-trip price found within the last 5 days was $185 on Jetstar (Jan 12-Jan 13).

Reviews of airlines servicing Sydney

Read through reviews of airlines operating flights from Cairns to Sydney, such as Jetstar. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Jetstar
6.5
Okay
578 reviews

Comfort

6.4

Overall

6.5

Boarding

6.7

Entertainment

5.0

Crew

7.3

Food

5.7

Reviews

1 / 20
10.0
Excellent

Steven,Aug 2026

BNE - MEL

Wonderful crew, good inflight menu. Boarding and airport procedures are a bit chaotic.
Jetstar
6.5
Okay
578 reviews
Jetstar
6.5
Okay
578 reviews

Comfort

6.4

Overall

6.5

Boarding

6.7

Entertainment

5.0

Crew

7.3

Food

5.7

Reviews

1 / 20
10.0
Excellent

Steven,Aug 2026

BNE - MEL

Wonderful crew, good inflight menu. Boarding and airport procedures are a bit chaotic.

Related info for your journey

  • What airports do I use to fly from Cairns to Sydney?

    Sydney Kingsford Smith is the airport most travelers will use when flying to Sydney from Cairns. Booking flights from Cairns (CNS) to Kingsford Smith (SYD) should be relatively easy as there are 28 daily flights to Sydney from 1 airline. 4h 50m is how long a flight from Cairns to Sydney Kingsford Smith will take if you book a nonstop flight.

  • How popular is this Cairns to Sydney flight route?

    Flights from Cairns to Sydney Kingsford Smith have been viewed 2 times in the past calendar month.

  • How long is the flight from Cairns to Sydney?

    Jetstar can get you from Cairns to Sydney in just under 3h. Your travel time will be generally consistent. There are 1224 mi between Cairns and Sydney. Generally, flights for this route are nonstop.

  • What is the cheapest airline to fly from Cairns to Sydney round-trip?

    According to our current data, Jetstar ($80), offers the cheapest pricing from Cairns to Sydney. This flight start at 65% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Cairns to Sydney are Jetstar ($75), Virgin Australia ($97), and Qantas Airways ($120).

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

    No one likes to see their flight delayed. When booking a flight from Cairns to Sydney consider choosing Japan Airlines (100%), Qatar Airways (74%) or Virgin Australia (73%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Cairns to Sydney?

    Looking for the cheapest flight from Cairns to Sydney? While on average our users pay $336, our data indicates the cheapest price to be $107. The most popular route (Cairns - Sydney Kingsford Smith), is priced around $265.

  • 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 $166). Flying from Cairns to Sydney in October is currently the most expensive (average of $266). 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

Traveling to a place near Sydney?

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Wollongong
Coogee
Manly

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Alternative routes for Cairns to Sydney

Brisbane to Sydney flights
Coolangatta to Sydney flights

Top airline flying from Cairns to Sydney

AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$80Average$271FlexibilityNo cancel feeOn-time74%

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