Syros is the administrative capital of the Cyclades, and its port town, Ermoupoli, is one of the most handsome in the Aegean, a place of neoclassical mansions and marble squares that stays lively all year. Rafina, on the east coast of Attica, is the smaller of Athens' two main ferry ports and the one closest to Athens International Airport. It is a natural target if you want to finish your island trip near the airport rather than cross the city from Piraeus.
The catch is that the two ports are not on the same ferry line. Rafina's ships mainly serve Andros, Tinos and Mykonos, while Syros sits a little to the west, on the main Piraeus corridor. Ferryhopper therefore treats the connection as indirect: you sail from Syros to one of the islands on the Rafina line, change boats, and continue to the mainland. Its estimate for the whole journey is about 5 to 7 hours, depending on where you change and how long you wait.
Our older route data listed direct Golden Star Ferries and Fast Ferries sailings of about 2 hours to 3 hr 36 min. We could not confirm those with a current source, so treat a direct boat as something to look for on your date rather than rely on. If one runs, it will appear in the booking box alongside the two-leg options.
Before booking, compare the alternatives honestly. From Syros there are direct boats to Piraeus, which for many travellers is simpler than a connection to Rafina, even if the airport is a little further away. Choose Rafina when your plan genuinely favours the east side of Athens, and book both legs together where possible so a late first boat does not strand you.
