Greek islands ferry routes & schedules

Start with the islands, then let the port choose itself

Nobody falls in love with a ferry timetable. You fall for a whitewashed village on Amorgos, a black-sand cove on Santorini, the harbour tavernas of Symi — and the boats are simply how you stitch those places together. So begin there. Sketch the islands you actually want, in the order that makes geographic sense, and the rest of the puzzle mostly solves itself. The Cyclades reward a loose chain (Paros to Naxos to a little Koufonisi, say); the Dodecanese string down the Turkish coast toward Rhodes; Crete is a destination, not a stepping stone. When you know the shape of the trip, you know which Athens port you're leaving from — and that single decision quietly sets the tone for everything after. You can trace every Greek ferry route before you commit to a single bed booked on an island.

The three gates of Athens, and why they aren't interchangeable

Athens breathes through three ports, and travellers who assume they're the same lose a morning to a taxi across the Attica peninsula. Piraeus is the great mother-port — a churning, gate-numbered city of ships that sends boats to the Cyclades, the Dodecanese, the North Aegean, the Saronic day-trip islands, and overnight down to Crete. If an island exists, Piraeus probably reaches it. Rafina, on the east coast and far closer to the airport, is the quiet cheat code for Andros, Tinos and Mykonos; crossings run shorter here, and there is simply no Piraeus boat to Andros at all. Lavrio, further south and sleepier still, is the only door to little Kea, plus Kythnos and a scattering of the western Cyclades and North Aegean. Land at the airport bound for Mykonos and you want Rafina, not the long crawl into Piraeus.

Port	Best for	Character
Piraeus	Cyclades, Dodecanese, NE Aegean, Saronic, Crete	Vast, busy, gate numbers matter
Rafina	Andros, Tinos, Mykonos (and beyond)	Small, near the airport, faster hops
Lavrio	Kea, Kythnos, western Cyclades	Sleepy, uncrowded, limited sailings

The boats you'll actually board

Two very different animals share these waters, and knowing which one you're standing in changes the whole day. The big conventional car ferries — Blue Star's blue-hulled workhorses, Golden Star's broad-decked Superferry and Andros Queen, Minoan's overnight giants to Crete — are floating villages: outdoor sun decks, cafeterias, room to wander, and a reassuring steadiness when the sea turns choppy. On the long haul to Heraklion or Rhodes you can book anything from an economy deck seat to a two-, three- or four-berth cabin with its own shower; the classic Piraeus–Crete boat slips out around nine at night and lands you at dawn, rested, with a whole extra day gained. Deck class here is its own culture — families camped on reclining seats, the smell of coffee, someone's grandmother handing out koulouria.

Then there are the high-speed catamarans — SeaJets tearing across the Cyclades at close to fifty knots, Hellenic Seaways' Flyingcats, the veteran Flying Dolphin hydrofoils buzzing the Saronic Gulf, Aegean Speed Lines darting to Sifnos and Milos. They halve your travel time and roughly double your fare, they take few cars or none, and their sealed, aircraft-style cabins give you speed instead of sea air. They are glorious on a calm morning. They are also the first boats cancelled when the wind gets up — a trade-off worth making with open eyes.

The meltemi, and the summer temper of the Aegean

The Aegean has a mood, and its name is the meltemi — a dry northerly that funnels down over the Cyclades and can blow for days. It builds through summer and peaks from the middle of July into August, exactly when the ports are busiest. On a strong meltemi day the big ferries shrug and sail; the fast catamarans are the ones that blink first, with sailings commonly suspended once the wind reaches force seven or eight and almost certainly by force nine. The practical lesson is simple: if a cancellation would wreck a flight home, ride a conventional ferry, leave a buffer day before you fly, and treat the last leg back to Athens as the one you don't gamble on. Book the boat, then check it again the night before — Greek operators post updates as the weather turns.

Small rituals that make or break the trip

A few habits separate the smooth trips from the stressful ones. Reserve car space early. Garage decks fill weeks ahead in July and August, and a foot passenger's flexibility vanishes the moment a vehicle is involved — some lines even discount very short cars, so measure yours. Summer schedules are only published around March, so the network firms up later than nervous planners would like; once it does, connections lock in fast. Print or screenshot your ticket, since coverage flickers at sea. Arrive at Piraeus with real margin — finding your gate among the ranks of ships takes longer than you think — and remember that the Ionian islands and the Sporades aren't reached from Athens at all, but from mainland ports like Igoumenitsa, Patra, Volos and Agios Konstantinos. Get the port right, respect the wind, and the sea does the rest. For live crossings and current fares it's worth cross-checking a specialist planner such as Ferryhopper before you lock anything in.

What Greek ferry tickets actually cost

Greek fares are gentler than most first-timers expect, and the boat matters more than the distance. Short Saronic and small-Cyclades hops are pocket change — Aegina to Agistri is about €4, Páros to Náxos around €5.50 — while the headline tourist legs out of Piraeus climb into the €30–46 range once you are crossing open water to Santorini or Crete. On any given route the high-speed catamarans roughly double the conventional fare and halve the time, trading sea air for a sealed, aircraft-style cabin; they are also the first boats the wind cancels.

Three levers move the number after that. Class: deck or economy is the floor, a numbered aircraft-style seat costs a little more, and a cabin berth on the overnight boats to Crete a good deal more. Vehicles: a car is ticketed separately and often costs more than its driver, so a family with a hire car is really paying for the metal. Season: the fares themselves barely flex, but in August the cheap cabins and car-deck spaces sell out, so the affordable options vanish rather than getting dearer — which is the real argument for booking the peak weeks early.

Crossing	From (deck, one-way)	Typical time
Piraeus → Santorini	€46	4h 45m
Piraeus → Chania (Crete)	€37	~8h 30m
Páros → Santorini	€33	1h 30m
Igoumenitsa → Patras	€33	~6h 30m
Santorini → Milos	€16	~2h
Kos → Rhodes	€14.50	~2h 40m
Páros → Náxos	€5.50	25m
Aegina → Agistri	€4	10m