A Greek island trip is the clearest example of a journey that no single booking site will plan for you. It is a long-haul flight, a transfer across Athens, a sequence of ferries that only exist in summer, and a flight home that you must not miss. The ferries are the constraint. Build everything else around them.
Step one: get the order right
The single most common way to ruin this trip is to book the flights first, then discover the ferries do not connect the way you assumed. Do it in this order:
- Pick the islands and check the crossings between them exist on your dates. Many inter-island routes run only a few times a week, and only in season.
- Fix the ferry days. These are now the skeleton of the trip.
- Book accommodation around those days.
- Book the flight home last, leaving a clear night in Athens (or on a well-connected island with its own airport) after the final crossing.
Athens airport to the port
Most trips start at Athens International (ATH) and most ferries leave from Piraeus, on the other side of the city. The options:
| Option | Approx. time | Notes |
|---|---|---|
| Metro Line 3 (blue) | ~60 min | Direct to Piraeus station, which sits by the port. Simple with luggage; trains are less frequent than the city-centre stretch suggests. |
| X96 express bus | ~90 min | Runs 24 hours a day, every 20–30 minutes. The only option in the small hours. |
| Suburban railway | just over 1 h | Requires a change; useful for some destinations. |
| Taxi / transfer | 45–60 min | Via the Attiki Odos motorway. Fastest, and priced accordingly. |
Piraeus is not one quay but a ring of numbered gates, E1 to E12 or so, spread over a long waterfront. Cyclades sailings typically go from gates in the E4 to E10 range, but this is assigned per sailing and changes. Check the gate on the day, allow 20 to 30 minutes to walk to it, and do not assume the taxi will drop you at the right one.
Ferry or island flight?
For the popular Cyclades, both exist. Piraeus to Mykonos, for instance, is served by two quite different products: high-speed catamarans doing the crossing in around 2 hours 40 minutes, and conventional ships taking up to about 5 hours 50 minutes, with Blue Star Ferries at roughly 4 hours 40 on a typical conventional sailing.
Which to choose:
- High-speed is roughly half the time and considerably more expensive. It is also far more likely to be cancelled when the meltemi wind is blowing, and much less pleasant in a swell.
- Conventional ferries are slower, cheaper, steadier and more reliable. On a long crossing you get a seat, a deck and a cafeteria. In shoulder season the reliability is worth more than the hours.
- Domestic flights to Santorini, Mykonos and a few others save time on paper but reinstate the airport overhead at both ends, and the island airports are small and prone to weather delays of their own.
The wind is a scheduling factor, not an anecdote
The meltemi blows through the Aegean in summer, strongest in July and August. It does not make travel impossible, but it does cancel high-speed sailings at short notice, sometimes for a day or two at a time. Plan as though you will lose one crossing somewhere in the trip:
- Never schedule the last ferry for the same day as the flight home.
- Prefer conventional ships for the crossings you cannot afford to lose.
- Keep the last night's accommodation flexible if you can.
- Have the operator's app or website saved before you travel — cancellations are announced there first.
A shape that works
For a first Cyclades trip of about ten days, a workable pattern is: fly into Athens, one night in the city, ferry out to a larger, well-connected island (Naxos and Paros both have frequent onward links), two or three nights, short hop to a second island, three nights, then a longer crossing back to Piraeus with a night in Athens before flying home. Two islands and a city, not five islands.
The temptation is always to add one more island. Each additional hop costs a travel day, a check-in and a chance for the weather to intervene — and the islands themselves are the point, not the collecting.
Booking notes
- Summer timetables are published late. If the dates you want are not bookable yet, the schedule probably has not been released rather than the route being cancelled. Greek operators often load summer sailings in late winter or early spring.
- Vehicle space sells out long before foot-passenger space. If you are taking a car, book it as far ahead as the timetable allows.
- Check-in deadlines are real and typically 30 to 60 minutes before departure on the larger ships. Late arrivals are not loaded.
- Print or download your ticket. Mobile signal at the gates is not dependable, and some operators still exchange a booking reference for a paper boarding card.
The short answer
Choose the islands, then the ferries, then everything else. Favour conventional ships over high-speed catamarans for the crossings that matter, keep the itinerary to two or three islands, and leave a clear night between your last sailing and your flight home. The wind will do what it does; a trip with slack in it survives that, and a tightly packed one does not.
Common questions
How do I get from Athens airport to the Piraeus ferry port?
Metro Line 3 runs direct to Piraeus in about 60 minutes. The X96 express bus runs 24 hours a day every 20 to 30 minutes and takes around 90 minutes. A taxi via the Attiki Odos motorway takes roughly 45 to 60 minutes depending on traffic.
How long is the ferry from Piraeus to Mykonos?
Between about 2 hours 40 minutes on a high-speed service and about 5 hours 50 minutes on a conventional ship. Blue Star Ferries runs the route at around 4 hours 40 minutes on a typical conventional sailing.
Should I book Greek ferries in advance?
Yes for summer travel and essential if you are taking a vehicle. Note that summer timetables are often not published until late winter or early spring, so dates that are not yet bookable usually mean the schedule has not been released.
What happens if my ferry is cancelled because of wind?
Operators normally move you to the next available sailing or refund the crossing. They do not cover the knock-on costs — a missed flight, an extra hotel night — which is why you should never schedule the last crossing on the same day as your flight home.
Sources
Journey times, operators and transfer options on this page were checked against these sources on 11 September 2026. Operators change timetables and fares without notice — always confirm on the operator’s own site before you commit to a plan.
