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$105+ Cheap flights from Cairns to Sydney (CNS - SYD)

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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — SYD
Sep 16 — Sep 231
Wed 9/16
Wed 9/23
1 adult, Economy
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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 Friday or Saturday and return on a Tuesday

Cheap flight deals from Cairns to Sydney

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 August 17, 2026.

This Jetstar deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:10 pm -
Nonstop2h 55m
Tue 9/153:15 pm -
Nonstop3h 10m
Deal found 8/14$158
This Jetstar deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:10 pm -
Nonstop2h 55m
Fri 9/117:15 pm -
Nonstop3h 10m
Deal found 8/14$159
This Jetstar deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:10 pm -
Nonstop2h 55m
Thu 9/107:15 pm -
Nonstop3h 10m
Deal found 8/14$161
This Jetstar deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:45 am -
Nonstop3h 00m
Wed 9/167:15 pm -
Nonstop3h 10m
Deal found 8/17$166
This Jetstar deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:10 pm -
Nonstop2h 55m
Thu 9/177:15 pm -
Nonstop3h 10m
Deal found 8/12$169
This Jetstar deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:10 pm -
Nonstop2h 55m
Sun 9/67:15 pm -
Nonstop3h 10m
Deal found 8/16$185
This Jetstar deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:45 am -
Nonstop3h 00m
Tue 9/156:10 am -
Nonstop3h 10m
Deal found 8/17$187
This Jetstar deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:45 am -
Nonstop3h 00m
Fri 9/47:15 pm -
Nonstop3h 10m
Deal found 8/16$190
This Jetstar deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:10 pm -
Nonstop2h 55m
Fri 9/187:15 pm -
Nonstop3h 10m
Deal found 8/14$197
This Jetstar deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetstar is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:10 pm -
Nonstop2h 55m
Sun 9/66:10 am -
Nonstop3h 10m
Deal found 8/16$201
This CheapOair deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:45 am -
Nonstop3h 00m
Sat 9/123:15 pm -
Nonstop3h 10m
Deal found 8/15$208

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 August 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$158
(Jetstar)

One-way from

$105
(Jetstar)

Popular in

March

Cheapest in

January

Average price

$234

Good round-trip deal

$243 or less

Good one-way deal

$136 or less
Provider with most accurate pricing for Cairns-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Cairns-Sydney Kingsford Smith flights.
Search Deals
From Cairns to Sydney Kingsford Smith
Search Deals
One-way flight from Cairns to Sydney Kingsford Smith
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Cairns to Sydney Kingsford Smith.
Search Deals
Price to beat on a one-way flight from Cairns to Sydney Kingsford Smith.
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated August 17, 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 round-trip
Quickest round-trip

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 9/10

7:10 pm-10:05 pm

Nonstop2h 55m

Sydney Kingsford Smith

Thu 9/17

7:15 pm-10:25 pm

Nonstop3h 10m

$169

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Mon 8/31

7:10 pm-10:05 pm

Nonstop2h 55m

Sydney Kingsford Smith

Thu 9/3

7:15 pm-10:25 pm

Nonstop3h 10m

$244

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Mon 8/31

7:10 pm-10:05 pm

Nonstop2h 55m

Sydney Kingsford Smith

Wed 9/2

7:15 pm-10:25 pm

Nonstop3h 10m

$244

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 10/15

6:45 am-10:45 am

Nonstop3h 00m

Sydney Kingsford Smith

Thu 10/15

8:15 pm-10:25 pm

Nonstop3h 10m

$244

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 12/3

3:45 pm-7:45 pm

Nonstop3h 00m

Sydney Kingsford Smith

Fri 12/4

7:00 pm-11:05 pm

1 stop5h 05m

$262

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Sun 9/27

6:45 am-9:45 am

Nonstop3h 00m

Sydney Kingsford Smith

Sat 10/3

7:15 pm-10:25 pm

Nonstop3h 10m

$277

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 9/10

7:15 pm-10:10 pm

Nonstop2h 55m

Sydney Kingsford Smith

Mon 9/14

5:00 pm-11:20 pm

1 stop6h 20m

$278

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 11/6

11:40 am-6:10 pm

1 stop5h 30m

Sydney Kingsford Smith

Sun 11/8

7:30 pm-11:05 pm

1 stop4h 35m

$306

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Thu 10/15

9:20 am-4:40 pm

1 stop6h 20m

Sydney Kingsford Smith

Thu 10/15

6:30 pm-11:20 pm

1 stop5h 50m

$306
Cheapest one-way
Quickest one-way

CairnsSydney

CNS Cairns - SYD Sydney Kingsford Smith

CNSSYD

Cairns

Fri 9/4

7:10 pm-10:05 pm

Nonstop2h 55m

$105

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 21 resultsSorted by cheapest first
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Compare providers for flights from Cairns to Sydney

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cairns to Sydney in August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust 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
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

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 $160). Flying from Cairns to Sydney in March is currently the most expensive (average of $254). 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 August 17, 2026.

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 $189 and $270 in September.
The cheapest round-trip price found within the last 5 days was $158 on Jetstar (Sep 9-Sep 15).

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 August 17, 2026.
Read through reviews of airlines operating flights from Cairns to Sydney, such as Virgin Australia and Jetstar. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Australia
7.6
Good
470 reviews

Entertainment

6.4

Overall

7.6

Food

6.4

Boarding

7.8

Comfort

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Virgin Australia
7.6
Good
470 reviews
Virgin Australia
7.6
Good
470 reviews

Entertainment

6.4

Overall

7.6

Food

6.4

Boarding

7.8

Comfort

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Jetstar
6.5
Okay
567 reviews
Virgin Australia
7.6
Good
470 reviews

Entertainment

6.4

Overall

7.6

Food

6.4

Boarding

7.8

Comfort

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

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?

    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 33 daily flights to Sydney from 2 different airlines. 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 4 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 2h 55m. Your travel time will be generally consistent. There are 1224 mi between Cairns and Sydney. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Cairns to Sydney round-trip?

    According to our current data, Jetstar ($72), and Virgin Australia ($130) offers the cheapest pricing from Cairns to Sydney. These flights start at 67% 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 ($71), Virgin Australia ($90), 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 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?

    Looking for the cheapest flight from Cairns to Sydney? While on average our users pay $404, our data indicates the cheapest price to be $64. 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 $160). Flying from Cairns to Sydney in March is currently the most expensive (average of $254). 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?

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

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Alternative routes for Cairns to Sydney

See prices for flight routes from nearby airports that may be better suited for you.
Brisbane to Sydney flights
Coolangatta to Sydney flights

Top 2 airlines flying from Cairns to Sydney

Discover the top 2 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 2,558,603 searches. Data last updated August 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$72Average$273FlexibilityNo cancel feeOn-time74%
Virgin AustraliaCheapest$130Average$243FlexibilityNo cancel feeOn-time80%

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