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 19/12. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — SYD
30 Sep — 7 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Cairns to Sydney Kingsford Smith are usually found in January or February, booked 81 days in advance, depart on a Wednesday or Saturday and return on a Sunday
Cheap flight deals from Cairns to Sydney
Enter your travel dates to find the best prices.
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Cheapest flights from Cairns to Sydney
Explore the most affordable flight options available from Cairns to Sydney. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 August 2026.
Wed 23/919:10 -
Nonstop2h 55m
Sat 17/1020:15 -
Nonstop3h 10m
Deal found 30/8$226
Thu 17/919:10 -
Nonstop2h 55m
Mon 21/919:15 -
Nonstop3h 10m
Deal found 28/8$232
Thu 17/919:10 -
Nonstop2h 55m
Fri 18/919:15 -
Nonstop3h 10m
Deal found 27/8$250
Best flights from Cairns to Sydney
Discover carefully curated flight deals from Cairns to Sydney that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.
Thu 17/919:10 -
Nonstop2h 55m
Mon 21/919:15 -
Nonstop3h 10m
Deal found 27/8$236
Thu 22/1006:00 -
1 stop6h 40m
Sat 24/1006:10 -
Nonstop3h 10m
Deal found 28/8$341
Wed 30/1214:40 -
1 stop6h 45m
Fri 8/114:40 -
Nonstop3h 05m
Deal found 26/8$370
Thu 22/1006:00 -
1 stop4h 55m
Sat 24/1015:45 -
1 stop4h 45m
Deal found 25/8$402
Tue 29/919:10 -
Nonstop2h 55m
Tue 20/1020:15 -
Nonstop3h 10m
Deal found 29/8$269
Mon 14/919:10 -
Nonstop2h 55m
Thu 5/1106:20 -
Nonstop3h 00m
Deal found 25/8$335
Mon 14/919:10 -
Nonstop2h 55m
Thu 5/1118:00 -
1 stop6h 05m
Deal found 25/8$413
Fri 20/1114:40 -
1 stop6h 45m
Mon 21/1218:30 -
1 stop5h 35m
Deal found 26/8$433
Mon 12/1018:10 -
Nonstop2h 55m
Wed 14/1020:15 -
Nonstop3h 10m
Deal found 27/8$373
Mon 4/114:40 -
1 stop6h 45m
Mon 11/118:30 -
1 stop5h 35m
Deal found 26/8$433
Tue 23/206:00 -
1 stop5h 40m
Tue 2/319:00 -
1 stop5h 05m
Deal found 26/8$433
Mon 19/1014:50 -
1 stop6h 30m
Fri 30/1019:30 -
1 stop4h 35m
Deal found 30/8$434
Direct flights from Cairns to Sydney
Explore direct flight options from Cairns to Sydney based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 August 2026.
Wed 23/919:10 -
Nonstop2h 55m
Sat 17/1020:15 -
Nonstop3h 10m
Deal found 30/8$226
Thu 17/919:10 -
Nonstop2h 55m
Mon 21/919:15 -
Nonstop3h 10m
Deal found 28/8$232
Thu 17/919:10 -
Nonstop2h 55m
Fri 18/919:15 -
Nonstop3h 10m
Deal found 27/8$250
Last-minute flights from Cairns to Sydney
Discover last-minute flight deals from Cairns to Sydney. Data last updated 31 August 2026 and is based on user searches.
Thu 17/919:10 -
Nonstop2h 55m
Mon 21/919:15 -
Nonstop3h 10m
Deal found 28/8$232
Thu 17/919:10 -
Nonstop2h 55m
Fri 18/919:15 -
Nonstop3h 10m
Deal found 27/8$250
Wed 23/919:10 -
Nonstop2h 55m
Sat 17/1020:15 -
Nonstop3h 10m
Deal found 30/8$226
One-way flights from Cairns to Sydney
Search for one-way flight options from Cairns to Sydney. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.
Sat 19/1209:00 -
Nonstop2h 55m
Deal found 30/8$134
Mon 11/106:40 -
Nonstop3h 00m
Deal found 25/8$135
Mon 7/1206:40 -
Nonstop3h 00m
Deal found 28/8$137
Thu 10/919:15 -
Nonstop2h 55m
Deal found 26/8$140
Wed 18/1118:05 -
Nonstop3h 00m
Deal found 29/8$144
Fri 11/919:15 -
Nonstop2h 55m
Deal found 27/8$147
Sun 27/919:15 -
Nonstop2h 55m
Deal found 30/8$148
Mon 15/206:40 -
Nonstop3h 00m
Deal found 25/8$149
Mon 28/919:15 -
Nonstop2h 55m
Deal found 26/8$151
Sun 13/1217:35 -
Nonstop3h 00m
Deal found 28/8$152
Find flight deals from Cairns to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Cairns (CNS) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 31 August 2026.
Customise your flight search to find flights from Cairns to Sydney 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 7,457,451 searches. Data last updated 31 August 2026.
Use the filters below to find and compare flights from Cairns to Sydney that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Thu 17/9
19:10-22:05
Nonstop2h 55m
Sydney Kingsford Smith
Mon 21/9
19:15-22:25
Nonstop3h 10m
$236
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Tue 29/9
19:10-22:05
Nonstop2h 55m
Sydney Kingsford Smith
Tue 20/10
20:15-22:25
Nonstop3h 10m
$269
Fastest return journey
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Mon 14/9
19:10-22:05
Nonstop2h 55m
Sydney Kingsford Smith
Thu 5/11
06:20-08:20
Nonstop3h 00m
$335
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Thu 22/10
06:00-13:40
1 stop6h 40m
Sydney Kingsford Smith
Sat 24/10
06:10-08:20
Nonstop3h 10m
$341
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Wed 30/12
14:40-22:25
1 stop6h 45m
Sydney Kingsford Smith
Fri 8/1
14:40-16:45
Nonstop3h 05m
$370
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Mon 12/10
18:10-22:05
Nonstop2h 55m
Sydney Kingsford Smith
Wed 14/10
20:15-22:25
Nonstop3h 10m
$373
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Thu 22/10
06:00-11:55
1 stop4h 55m
Sydney Kingsford Smith
Sat 24/10
15:45-19:30
1 stop4h 45m
$402
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Mon 14/9
19:10-22:05
Nonstop2h 55m
Sydney Kingsford Smith
Thu 5/11
18:00-23:05
1 stop6h 05m
$413
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Fri 20/11
14:40-22:25
1 stop6h 45m
Sydney Kingsford Smith
Mon 21/12
18:30-23:05
1 stop5h 35m
$433
CairnsSydney
CNS Cairns - SYD Sydney Kingsford Smith
CNSSYD
Cairns
Mon 4/1
14:40-22:25
1 stop6h 45m
Sydney Kingsford Smith
Mon 11/1
18:30-23:05
1 stop5h 35m
$433
Flights are sorted by cheapest return flights first.
Deals found on 25/8
Showing 1-10 of 24 resultsSorted by cheapest first
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2
3
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.
CNS-SYD
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 Sydney
Prices
Airlines
Delays
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 $225). Flying from Cairns to Sydney in March is currently the most expensive (average of $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?
Find hourly flight availability from Cairns to Sydney. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 31 August 2026.
A simple way to save on the total cost of your ticket is to fly from Cairns to Sydney in the evening. If you’re flexible enough to do this you can expect to save up to 84% on your trip compared to booking a flight at midday.
What is the cheapest day to fly from Cairns to Sydney?
Use this chart to determine the cheapest time to fly return from Cairns to Sydney. Price data was last updated on 29 August 2026.
Travellers seeking maximum savings on their Cairns to Sydney flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from Cairns to Sydney?
Airfare is typical for this route at the moment.
Cairns to Sydney flights typically cost between $222 and $410 in September.The cheapest return price found within the last 5 days was $226 on Jetstar (23 Sept–17 Oct).
Weekly flight availability from Cairns to Sydney
Explore weekly flight availability from Cairns to Sydney. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 31 August 2026.
The most flights from CNS to SYD are scheduled on a Friday (40 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (27 on average).
How often are flights from Cairns to Sydney delayed?
About 13% of weekly flights between Cairns and Sydney have experienced delays in the past year, with the average delay time being 98 minutes.
What is the most punctual flight time for Cairns to Sydney flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Sunday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Cairns to Sydney flights?
Over the past year, Jetstar have had the lowest number of delays on this route, with just 13% of flights being delayed.
Reviews of airlines servicing Sydney
Get insights into the airlines that provide service to Sydney. 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 Sydney. Reviews last updated 31 August 2026.
See what other customers who have flown with Virgin Australia,Qantas Airways, andJetstar from Cairns to Sydney have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Related info for your journey
Find useful and relevant information for your journey from Cairns to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airports do I use to fly from Cairns to Sydney?
If you wish to fly to Sydney from Cairns, then you need to book flights from Cairns to Sydney Kingsford Smith. There are 31 flights from Cairns (CNS) to Kingsford Smith (SYD) per day to choose from. Flights to Sydney from Cairns are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 2h 55m is how long a nonstop flight from Cairns to Sydney Kingsford Smith typically takes.
How popular is this Cairns to Sydney flight route?
The Cairns to Sydney Kingsford Smith flight path was viewed by 1,214 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 2h 55m. The distance from Cairns to Sydney is about 1970 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Cairns to Sydney round-trip?
Currently priced at $106, Jetstar will fly you from Cairns to Sydney and back. In addition to Jetstar, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Australia and Qantas Airways - these airlines can fly you to your destination from $121 and $182, respectively. You may be able to fly from Cairns to Sydney for 65% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Cairns to Sydney one-way?
To fly one-way, consider booking your trip with Jetstar, which is currently one of the cheapest options available, starting at $99. Virgin Australia flights start at $118 while deals on Qantas Airways start at $169 one-way.
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 LATAM Airlines(94%), Japan Airlines(94%) or Qatar Airways(93%), as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Cairns to Sydney?
While on average a flight from Cairns to Sydney is generally $347, our data shows the cheapest flight currently is $126. When looking at the most popular route, (Cairns - Sydney Kingsford Smith), you can expect to pay $229 for that flight.
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 $225). Flying from Cairns to Sydney in March is currently the most expensive (average of $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.
Book flights to Sydney if you plan to visit one of these locations
Parramatta
Wollongong
Penrith
Manly
Katoomba
Lithgow
Cronulla
Terrigal
Leura
Randwick
Bondi Beach
Coogee
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Fly from Cairns to Sydney on these airlines
Choose from the following airlines for your flight from Cairns to Sydney. Flights are based on user searches made on Cheapflights and were last updated on 31 August 2026.
Explore flights to Sydney departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 31 August 2026.
Discover the top 3 airlines that operate flights from Cairns to Sydney. 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 7,457,451 searches. Data last updated 31 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Cairns to Sydney?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Cairns to Sydney. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Cairns to Sydney?
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 Sydney.
Can Cheapflights find flights from Cairns to Sydney with no change fees?
Certainly. Search results for flights to Sydney from Cairns shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Cairns to Sydney become cheaper?
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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