Scroll through the results for cheap flights to Syros Island in Greece. To get the best deal, we'd advise booking in advance, particularly if you want to fly with a specific airline. Check your dates and see.
If these flights are too expensive, try searching for a different time of year. So if your dates are flexible, consider looking at different times of year.
So, if the flights to Syros Island don't work for you, you could always try searching for flights to other airports in Greece.
For even more options, check what other airports you could fly to Syros Island from. You might be able to make a saving by going from a different airport or city.