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$84+ 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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — SYD
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Cairns to Sydney Kingsford Smith are usually found in March or June, booked 83 days in advance, depart on a Friday or Saturday and return on a Tuesday

Cheap 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 septiembre 11, 2025.

Round-trip from

$142
(Kiwi.com)

One-way from

$84
(Jetstar)

Popular in

April

Cheapest in

March

Average price

$196

Good round-trip deal

$232 or less

Good one-way deal

$111 or less
From Cairns to Sydney Kingsford Smith
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One-way flight from Cairns to Sydney Kingsford Smith
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High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Cairns to Sydney Kingsford Smith.
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Price to beat on a one-way flight from Cairns to Sydney Kingsford Smith.
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Find 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 septiembre 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/155:45 amCNS - SYD
Nonstop2h 55mJetstar
sáb. 10/188:45 pmSYD - CNS
Nonstop3h 05mJetstar
Deal found 9/10$142
This Jetstar deal was found by Cheapflights users on 9/8. 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.
mié. 10/155:45 amCNS - SYD
Nonstop2h 55mJetstar
mié. 10/153:10 pmSYD - CNS
Nonstop3h 05mJetstar
Deal found 9/8$143
This Jetstar deal was found by Cheapflights users on 9/11. 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.
mié. 12/106:05 pmCNS - SYD
Nonstop3h 00mJetstar
dom. 12/146:20 amSYD - CNS
Nonstop3h 00mJetstar
Deal found 9/11$149
This Jetstar deal was found by Cheapflights users on 9/9. 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.
mié. 12/106:05 pmCNS - SYD
Nonstop3h 00mJetstar
jue. 12/116:20 amSYD - CNS
Nonstop3h 00mJetstar
Deal found 9/9$155
This Jetstar deal was found by Cheapflights users on 9/9. 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.
sáb. 10/256:00 pmCNS - SYD
Nonstop2h 55mJetstar
sáb. 11/16:20 amSYD - CNS
Nonstop3h 00mJetstar
Deal found 9/9$179
This Jetstar deal was found by Cheapflights users on 9/10. 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.
mié. 12/106:05 pmCNS - SYD
Nonstop3h 00mJetstar
mié. 12/178:25 pmSYD - CNS
Nonstop3h 05mJetstar
Deal found 9/10$181
This Jetstar deal was found by Cheapflights users on 9/10. 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.
sáb. 9/1310:15 amCNS - SYD
Nonstop2h 55mJetstar
mié. 9/176:10 amSYD - CNS
Nonstop3h 05mJetstar
Deal found 9/10$196
This Jetstar deal was found by Cheapflights users on 9/11. 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.
dom. 10/266:40 amCNS - SYD
Nonstop3h 00mJetstar
dom. 11/25:20 amSYD - CNS
Nonstop3h 00mJetstar
Deal found 9/11$203

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 septiembre 11, 2025.
Use the filters below to find and compare flights from Cairns to Sydney that are best for you.

Fly from

Cairns

Fly to

Sydney

Route

Depart

Return

Price

CairnsSydney

CNS - SYD

CNSSYD

Cairns

mié. 10/15

5:45 am-9:40 am

Nonstop2h 55m

Sydney Kingsford Smith

sáb. 10/18

8:45 pm-10:50 pm

Nonstop3h 05m

$142

CairnsSydney

CNS - SYD

CNSSYD

Cairns

mié. 10/15

5:45 am-9:40 am

Nonstop2h 55m

Sydney Kingsford Smith

mié. 10/15

3:10 pm-5:15 pm

Nonstop3h 05m

$143

CairnsSydney

CNS - SYD

CNSSYD

Cairns

mié. 12/10

6:05 pm-10:05 pm

Nonstop3h 00m

Sydney Kingsford Smith

vie. 12/12

6:20 am-8:20 am

Nonstop3h 00m

$149

CairnsSydney

CNS - SYD

CNSSYD

Cairns

mié. 12/10

6:05 pm-10:05 pm

Nonstop3h 00m

Sydney Kingsford Smith

jue. 12/11

6:20 am-8:20 am

Nonstop3h 00m

$155

CairnsSydney

CNS - SYD

CNSSYD

Cairns

sáb. 10/25

6:00 pm-9:55 pm

Nonstop2h 55m

Sydney Kingsford Smith

sáb. 11/1

6:20 am-8:20 am

Nonstop3h 00m

$179

CairnsSydney

CNS - SYD

CNSSYD

Cairns

mié. 12/10

6:05 pm-10:05 pm

Nonstop3h 00m

Sydney Kingsford Smith

mié. 12/17

8:25 pm-10:30 pm

Nonstop3h 05m

$181

CairnsSydney

CNS - SYD

CNSSYD

Cairns

vie. 10/24

6:00 pm-9:55 pm

Nonstop2h 55m

Sydney Kingsford Smith

vie. 10/31

6:20 am-8:20 am

Nonstop3h 00m

$190

CairnsSydney

CNS - SYD

CNSSYD

Cairns

sáb. 11/8

6:05 pm-10:05 pm

Nonstop3h 00m

Sydney Kingsford Smith

mié. 11/12

6:20 am-8:20 am

Nonstop3h 00m

$208

CairnsSydney

CNS - SYD

CNSSYD

Cairns

jue. 10/9

6:00 pm-9:55 pm

Nonstop2h 55m

Sydney Kingsford Smith

sáb. 10/11

3:10 pm-5:15 pm

Nonstop3h 05m

$219

CairnsSydney

CNS - SYD

CNSSYD

Cairns

dom. 12/21

6:05 pm-10:05 pm

Nonstop3h 00m

$84

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 20 results
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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
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?

Use this chart to determine the optimal time to book a round-trip flight from Cairns to Sydney. Price data was last updated on August 29, 2025.

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 83 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, February is the cheapest month in which you can book a flight from Cairns to Sydney (average of $1,035). Flying from Cairns to Sydney in December is currently the most expensive (average of $1,626). 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 septiembre 11, 2025.

It’s optimal to fly from Cairns to Sydney in the afternoon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the morning.

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 septiembre 11, 2025.
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
474 reviews

Boarding

6.8

Crew

7.3

Entertainment

5.1

Overall

6.5

Comfort

6.4

Food

5.6

Reviews

1 / 20
2.0
Mediocre

Matt,Jul 2025

DPS - MEL

One of the worst flights I've ever been on. Avoid Jetstar and particular this redeye at all costs
Jetstar
6.5
Okay
474 reviews
Jetstar
6.5
Okay
474 reviews

Boarding

6.8

Crew

7.3

Entertainment

5.1

Overall

6.5

Comfort

6.4

Food

5.6

Reviews

1 / 20
2.0
Mediocre

Matt,Jul 2025

DPS - MEL

One of the worst flights I've ever been on. Avoid Jetstar and particular this redeye at all costs

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 32 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 1 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 is the cheapest airline to fly from Cairns to Sydney round-trip?

    According to our current data, Jetstar ($93), offers the cheapest pricing from Cairns to Sydney. This flight start at 52% lower than the current average price 3 months from now.

  • 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 IndiGo (100%), Qantas Airways (81%) or Air Canada (79%) 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 $437, our data indicates the cheapest price to be $76. 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, February is the cheapest month in which you can book a flight from Cairns to Sydney (average of $1,035). Flying from Cairns to Sydney in December is currently the most expensive (average of $1,626). 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
Manly
Coogee

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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
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Top airline flying from Cairns to Sydney

Discover the top airline 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetstarCheapest$93Average$189FlexibilityNo cancel feeOn-time74%

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