Cheap Flights from Kos to Sydney

Compare Kos to Sydney flight deals

Find the cheapest month or even day of the year to fly to Sydney

Book the best Sydney fare with no extra fees

Find the cheapest month to fly from Kos to Sydney

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kos to Sydney flights are currently cheapest in April.

Kos to Sydney: Alternative routes

Compare routes from Kos to Sydney below. You may find an airport to fly into that's cheaper, faster, or easier than Sydney.

Kos to Sydney: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 37,204
Cheapest month to flyApril

Finding cheap flights from Kos to Sydney: Frequently asked questions

The best price we found for a return flight from Kos to Sydney is ج.م.‏ 98,855. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Kos to Sydney. But we found flights with one or more stops from ج.م.‏ 98,855.
As of April 2026, there are no flights flying from Kos to Sydney.
The cheapest month to fly from Kos to Sydney is usually December.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to Sydney Airport on Wednesday, 16 December 2026.
No airlines currently offer direct flights between Kos Airport and Sydney Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sydney but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sydney is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, SKY express offers the cheapest flight tickets to Sydney.

Flying from Kos Airport (KGS) to Sydney (Kingsford Smith) Airport (SYD): what you need to know

  • Your KGS to SYD flight won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Be prepared for longer lines in popular months like August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a smart move.

How to find the cheapest flights from Kos Airport (KGS) to Sydney (Kingsford Smith) Airport (SYD)

  • Right now, ج.م.‏ 37,204 is the cheapest price we've found for a one-way Kos Airport to Sydney (Kingsford Smith) Airport flight. The best price for a return plane ticket is ج.م.‏ 98,855. Remember that fares may change due to availability at the time of booking.

  • Don't leave everything to the last moment. You're more likely to find cheap tickets from KGS to SYD if you book in advance. Airlines often offer some amazing early bird deals.

  • The 'Whole month' tool shows you the cheapest flights from Kos Airport to Sydney (Kingsford Smith) Airport throughout the entire month. It's a good way to snap up a bargain if your travel dates aren't set in stone.

  • Stay on top of deals for cheap flights from KGS to SYD by setting up a Price Alert. You'll get an email or push notification on the app when a special offer becomes available.

  • Secure the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Kos Airport to Sydney (Kingsford Smith) Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about Kos Airport (KGS)

  • Kos Airport scores high marks for its on-time performance. 89.58% of flights that depart KGS arrive at their destination as scheduled.

Arriving at Sydney (Kingsford Smith) Airport (SYD)

  • If you're getting in on a late Kos Airport to Sydney (Kingsford Smith) Airport flight, nothing tops the convenience of staying near the terminal. Pick up your bags from the carousel and then be tucked up in bed soon after at one of these options near SYD:

  • Go where the road takes you with a Sydney (Kingsford Smith) Airport rental car. Pick up your wheels from simba car hire, Bargain Car Rentals or Yes Drive and venture far and wide through Sydney and beyond.

  • Reserving your ride from Sydney (Kingsford Smith) Airport about two weeks in advance increases your chances of getting a good deal.

Getting from Sydney (Kingsford Smith) Airport (SYD) to central Sydney

  • From Sydney (Kingsford Smith) Airport, Sydney is approximately 18 kilometres away. It takes around 20 minutes to drive to the centre.

  • Getting to the centre by public transport typically takes 25 minutes.

When to fly to Sydney (Kingsford Smith) Airport (SYD)

  • April is the busiest month for flights from Kos Airport to Sydney (Kingsford Smith) Airport. To avoid the crowds, visit Sydney in April.

  • When reserving your flight from Kos Airport to Sydney (Kingsford Smith) Airport, consider the kind of weather you like. January is the warmest month in Sydney, with the temperature ranging from 17ºC to 32ºC.

  • Look for cheap tickets from KGS to SYD in July if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 5ºC and 19ºC on average.

Explore more of Australia

  • Canberra is just one of the many cities in Australia waiting to be discovered once you've seen Sydney. Around 241 kilometres away to the south-west, its best attractions include Australian War Memorial, National Gallery of Australia and Parliament House.

  • If you're eager to discover another major stop in Australia, consider Newcastle, about 121 kilometres north-east of Sydney. Newcastle Beach, Nobbys Beach and Merewether Beach are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.