C$741 Cheap Flights from Kos (KGS) to Sydney (SYD)

Compare Kos to Sydney flight deals

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Flight deals from Kos to Sydney

Looking for a cheap last-minute deal or the best return flight from Kos Airport to Sydney Airport? If you want to travel next month, return fares start from C$2,093. Find the lowest prices on one-way and return tickets right here.

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 May.

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 foundC$741
Cheapest month to flyMay

Finding cheap flights from Kos to Sydney: Frequently asked questions

The best price we found for a return flight from Kos to Sydney is C$1,859. 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 C$1,859.
As of May 2026, there are no flights flying from Kos to Sydney.
The cheapest month to fly from Kos to Sydney is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to Sydney Airport on Friday, September 4, 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, Aegean Airlines offers the cheapest flight tickets to Sydney.

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

  • You can expect bigger queues in popular months like August and other peak seasons. Arriving up to fours hours ahead of international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • To see whether you need a visa to enter Australia, contact your carrier and the local consulate or embassy. They'll give you the most current information, including additional travel documents you may need after booking your cheap ticket from KGS to SYD.

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

  • The best price we've seen for a one-way ticket from Kos Airport to Sydney (Kingsford Smith) Airport is C$741. The cheapest price for a return flight is C$1,859. Keep in mind that fares could change due to demand at the time of booking.

  • It's usually best to book ahead of time if you're looking for cheap flight tickets from KGS to SYD. That's because airlines change prices based on demand, which tends to rise closer to departure.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' search function. It'll show you the cheapest price in every month when looking for your ticket from Kos Airport to Sydney (Kingsford Smith) Airport.

  • Log into your online account or use the app to set up a Price Alert. We'll notify you straight away if there's a cheaper deal on this route. It's easy to do, and it'll save you the hassle of looking for cheap flight tickets from KGS to SYD every day.

  • Play around with filters to find the right trip for you. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Kos Airport to Sydney (Kingsford Smith) Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and journey duration.

Handy information about Kos Airport (KGS)

  • The journey from central Greece to Kos Airport is roughly 434 kilometres. Check out Google Maps for the quickest route, whether you're driving or taking public transport.

  • Catching an early flight from Kos Airport to Sydney (Kingsford Smith) Airport? Avoid rushing to the airport (and sneak in some extra snooze time) by picking one of these hotels near KGS:

Arriving at Sydney (Kingsford Smith) Airport (SYD)

  • If you're coming in on a late flight from Kos Airport to Sydney (Kingsford Smith) Airport, nothing tops the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and snoozing soon after at one of these hotels near SYD:

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

  • Sydney (Kingsford Smith) Airport is approximately 18 kilometres from the center of Sydney. With your own car rental or in a cab, the drive is about 21 minutes.

  • Getting there on public transport takes about 27 minutes.

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

  • The quietest month for a flight from Kos Airport to Sydney (Kingsford Smith) Airport is April, while July is the most popular. Choose the ideal time to visit Sydney based on whether you prefer a laid-back vibe or a more bustling atmosphere.

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

  • If you like cooler conditions, search for a cheap ticket from KGS to SYD in July. Temperatures average between 5ºC and 19ºC then.

More about Sydney

Complete your Sydney trip with hotels and a car rental

  • You've booked a cheap ticket to Sydney (Kingsford Smith) Airport — now it's time to find a great stay, and perhaps even a set of wheels. We've compared prices across hundreds of companies to bring you the best hotels and car rental deals in Sydney.

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