Kea, which Greeks also call Tzia, is the Cycladic island closest to Athens, a green and hilly weekend escape reached from the mainland port of Lavrio. Tinos lies well to the east, beyond Syros, known for its marble-carving villages, its dovecotes and the pilgrimage church that dominates its port town. A direct link between them would be the neat way to move from a quiet western island to the central Cyclades, and on paper there is one.
In reality it barely runs in this direction. Ferryhopper names Blue Star Ferries as the only operator, and its monthly table, which it notes is based on last year's data, shows a Kea to Tinos sailing in a single month, March, once a week, taking 6 hr 10 min. Its route card gives a "from €11" figure, but its fare table showed no price for Kea to Tinos when we checked on 24 September 2026. The opposite direction, Tinos to Kea, appears once a week in every month.
So for almost any real trip you will be changing boats, and the good news is that both halves are well served. Kea has sailings to Lavrio every day of the year, and from Attica you can pick up the busy lines to Tinos: Rafina, east of Athens, has boats every day, and so does Piraeus. It turns a sea crossing into a day of travel, but it is predictable.
If you like to keep things simple, spend a night near Athens between the two legs and take a morning boat on to Tinos. Arriving in Tinos Town is easy, since the harbour is at the foot of the main street, so you can walk to many hotels from the quay.