Ferry from Syros to Mykonos.

Syros is the working heart of the Cyclades, a year-round island with a real town, Ermoupoli, full of neoclassical mansions and marble-paved squares, and the medieval hilltop quarter of Ano Syros above it. Mykonos, a short sail east, is the famous one. Travellers use this crossing to move from Syros's everyday Greek island life to the beaches and nightlife of Mykonos, or to reach Mykonos from Athens via Syros when direct boats are full.

It is a quick trip on either type of boat. The Seajets high-speed craft cross in around half an hour, while the Blue Star Ferries conventional ship takes longer but costs well under half the price. On 12 August 2026, the day we sampled, the Blue Star fare started at €17.50 against €45.70 for Seajets.

Reliability is the other strength of this route. In Ferryhopper's table of last year's data, Blue Star Ferries sails every day in every month, so even in winter there is a daily link between the two islands. Seajets adds departures on many days, though its frequency varies a lot from month to month.

Before booking, think about where you are staying on Mykonos. Boats from Syros normally arrive at the new port at Tourlos, a few kilometres from Chora, and in high season taxis there are in short supply. A pre-booked transfer or the local bus takes the stress out of arrival.

The strait between Syros and Mykonos lies open to the north, so the summer meltemi, strongest in July and August, can make the crossing lively. The Seajets high-speed boats are the most exposed and may be slowed or held in port on a windy day; the port authority makes that call. The Blue Star ship is far steadier and is often still sailing when the fast boats are not. If your sailing is cancelled, the operator will rebook or refund you, and with Blue Star listed daily all year, the next day's conventional sailing is the natural fallback.