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Cheap flights from Cairns to Sydney from C$ 111

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
CNS — SYD
16 Oct — 23 Oct1
1 adult
1 adult, Economy

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 16 September 2025.

Round-trip from

C$ 199

One-way from

C$ 111

Popular in

October

Cheapest in

March

Average price

C$ 272

Good one-way deal

C$ 223 or less
Jetstar
  • Jetstar
  • 1/10-22/10
  • Nonstop
  • 6h 00m total
  • Cairns to Sydney
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Virgin Australia
  • Virgin Australia
  • 14/1
  • Nonstop
  • 3h 00m total
  • Cairns to Sydney
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Highest demand for flights based on searches. 14% potential increase in price (C$ 61 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 13 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 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 16 September 2025.

Wed 1/105:45 a.m.CNS - SYD
Nonstop2h 55mJetstar
Wed 22/108:45 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 16/9C$ 199
Thu 16/106:00 p.m.CNS - SYD
Nonstop2h 55mJetstar
Thu 23/103:10 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 16/9C$ 217
Sat 13/126:05 p.m.CNS - SYD
Nonstop3h 00mJetstar
Wed 17/123:25 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 14/9C$ 240
Tue 14/106:00 p.m.CNS - SYD
Nonstop2h 55mJetstar
Sat 18/108:45 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 14/9C$ 253
Wed 29/106:40 a.m.CNS - SYD
Nonstop3h 00mJetstar
Wed 5/116:20 a.m.SYD - CNS
Nonstop3h 00mJetstar
Deal found 14/9C$ 261
Wed 17/95:45 a.m.CNS - SYD
Nonstop2h 55mJetstar
Sun 21/96:10 a.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 16/9C$ 274
Wed 24/126:05 p.m.CNS - SYD
Nonstop3h 00mJetstar
Tue 30/128:25 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 15/9C$ 282
Fri 14/116:05 p.m.CNS - SYD
Nonstop3h 00mJetstar
Tue 18/116:20 a.m.SYD - CNS
Nonstop3h 00mJetstar
Deal found 15/9C$ 291
Fri 14/1111:40 a.m.CNS - SYD
1 stop5h 30mVirgin Australia
Sun 30/1112:50 p.m.SYD - CNS
Nonstop3h 05mVirgin Australia
Deal found 16/9C$ 303
Wed 17/95:45 a.m.CNS - SYD
Nonstop2h 55mJetstar
Wed 24/97:45 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 15/9C$ 307
Mon 15/123:50 p.m.CNS - SYD
Nonstop3h 00mJetstar
Fri 19/123:25 p.m.SYD - CNS
Nonstop3h 05mJetstar
Deal found 16/9C$ 315
Tue 18/116:00 a.m.CNS - SYD
1 stop7h 40mVirgin Australia
Fri 21/112:40 p.m.SYD - CNS
Nonstop3h 05mVirgin Australia
Deal found 16/9C$ 322

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 629,999 searches. Data last updated 16 September 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

Mon 26/1

6:40 a.m.-10:40 a.m.

Nonstop3h 00m

Sydney Kingsford Smith

Mon 26/1

3:25 p.m.-5:30 p.m.

Nonstop3h 05m

C$ 211

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Sat 13/12

6:05 p.m.-10:05 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Wed 17/12

3:25 p.m.-5:30 p.m.

Nonstop3h 05m

C$ 240

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Tue 14/10

6:00 p.m.-9:55 p.m.

Nonstop2h 55m

Sydney Kingsford Smith

Sat 18/10

8:45 p.m.-10:50 p.m.

Nonstop3h 05m

C$ 253

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Fri 14/11

6:05 p.m.-10:05 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Tue 18/11

6:20 a.m.-8:20 a.m.

Nonstop3h 00m

C$ 291

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Mon 26/1

6:00 a.m.-11:40 a.m.

1 stop4h 40m

Sydney Kingsford Smith

Mon 26/1

2:40 p.m.-4:45 p.m.

Nonstop3h 05m

C$ 315

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Mon 15/12

3:50 p.m.-7:50 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Fri 19/12

3:25 p.m.-5:30 p.m.

Nonstop3h 05m

C$ 315

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Sun 14/12

5:35 p.m.-9:35 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Thu 18/12

7:30 a.m.-11:00 a.m.

1 stop4h 30m

C$ 325

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Sun 14/12

3:50 p.m.-7:50 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Thu 18/12

3:25 p.m.-5:30 p.m.

Nonstop3h 05m

C$ 325

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Tue 23/12

6:05 p.m.-10:05 p.m.

Nonstop3h 00m

Sydney Kingsford Smith

Mon 29/12

8:25 p.m.-10:30 p.m.

Nonstop3h 05m

C$ 362

CairnsSydney

CNS - SYD

CNSSYD

Cairns

Fri 14/11

2:40 p.m.-10:25 p.m.

1 stop6h 45m

Sydney Kingsford Smith

Sat 15/11

1:00 p.m.-4:40 p.m.

1 stop4h 40m

C$ 369

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/9

Showing 1-10 of 22 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 12 September 2025.

The best time to book flights from Cairns to Sydney is 83 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, February is the cheapest month in which you can book a flight from Cairns to Sydney (average of C$ 1,326). Flying from Cairns to Sydney in December is currently the most expensive (average of C$ 1,881). 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 16 September 2025.

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 to fly round-trip from Cairns to Sydney?

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.

  • How popular is this Cairns to Sydney flight route?

    This flight path from Cairns to Sydney Kingsford Smith was viewed by 6 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 3h. Cairns and Sydney are separated by a distance of 1970 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Cairns to Sydney on time: IndiGo (100%), Qantas Airways (81%), Air Canada (79%).

  • What are the cheapest flights from Cairns to Sydney?

    The cheapest flight price from Cairns to Sydney is C$ 114. On average you can expect to pay C$ 223. The most popular route, (Cairns - Sydney Kingsford Smith), can usually be booked for C$ 366.

  • 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 C$ 1,326). Flying from Cairns to Sydney in December is currently the most expensive (average of C$ 1,881). 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
Parramatta
Penrith

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Alternative routes for Cairns to Sydney

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Why should you use Cheapflights to find cheap flight tickets from Cairns to Sydney?

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Can Cheapflights notify me if prices for flights from Cairns to Sydney become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sydney from Cairns today and book when prices fit your budget.

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