The ferry to Paros left at 09:30 and I missed it by twenty minutes. I had the wrong ticket, the wrong date, and a flight already booked back out of Athens two weeks later. The hotel I’d been saving for three months was full. That was the trip that taught me the order matters more than any single booking decision.
I’ve been planning Greek island trips in the same order ever since: hotels first, ferries second, flights last. It sounds obvious, but most people do it backwards because flights feel like the big, scary purchase. They’re not. They’re the most flexible piece of the trip, and locking them in before everything else is exactly how you end up redesigning a two-week holiday around two tickets you can’t refund.
Step 1: Hotels First
The small places go first, not last. The intimate 10-to-15-room hotels that make a trip feel different from a big chain sell out months ahead for peak summer. There are only so many rooms and they don’t come back. This is the part of the trip with the least flexibility, so it gets booked first.
Make a shortlist of two or three hotels per island: a first choice and a backup, because your first choice may already be gone. Check real availability for your exact dates today, even if you’re not ready to book. You need to know where you stand before you decide anything else.
Book the moment a room you like is available for your dates. Look for a free-cancellation rate so you can hold it while you sort the rest of the trip. I hold most of my stays on Booking.com with free cancellation, confirm the room, then lock in the ferry route once I know which islands I’m actually staying on.
Step 2: Ferries Second
Once your hotels are held, build the ferries around them. Never the other way around. Greek island ferries in shoulder season, June and September into October, don’t run as often as they do in peak July and August. Routes that look obvious on a map sometimes only sail a few times a week, and the fast boats sell out before the slow ones.
Map your islands in the order you’ll actually visit them, then check the real schedule for your exact dates. Confirm the route exists on the days you need it. Don’t assume two islands that look close on a map are well connected. Some aren’t. Give yourself a buffer between your last ferry and your flight home. Never connect a ferry to a same-day departure flight if you can help it.
I check live routes and timetables on Omio. It’s the clearest way to see what actually sails when, and you can book the tickets in the same place.
Step 3: Flights Last
Flights are the most flexible part of the whole trip, so they come last. There are dozens a day in and out of Athens. You can build them around the hotels and ferries you’ve already secured. Booking them first is what traps people: it’s the one piece you can’t undo, locking in dates before you know whether the rest of the trip fits them.
Book flights only once your hotels are confirmed and your ferry route works on those exact dates. Fly into Athens and home from your last island where you can. It usually saves a long backtrack at the end. Leave a full day between your final ferry and your flight out, not an afternoon, a full day.
The Shoulder-Season Question Almost Nobody Asks
Late September into early October is my favourite time to be in the islands. The sea is still warm, the crowds are thinner, and you can find a table without booking three days ahead. The catch: that’s also when a lot of the smaller, family-run hotels and tavernas start closing for the season. Arrive in the first week of October and you can find half a village shuttered.
If you’re travelling late in the season, email the hotel one question before you book: “Will you, and the restaurants nearby, still be open during my dates?” Most won’t volunteer it. All of them will answer honestly if you ask.
A Quick Gut-Check on Timing
July and August are hot, busy, everything open, everything booked out. Fine if you have no choice, but you’ll feel rushed and pay the most. Early to mid September is the sweet spot: warm, calmer, everything still running. Late September into early October is my personal favourite for price and peace, as long as you’ve checked what’s still open.
If you can move your dates even a week or two out of peak, it’s almost always worth it. The savings on rooms and the difference in how the islands feel at breakfast are not small.
The Short Version
Hotels first: shortlist two or three per island, check availability today, book with free cancellation. Ferries second: confirm the route runs on your dates, book the fast boats early. Flights last: build them around what you’ve already secured. And if you’re going late in the season, email the hotel to make sure it and the tavernas nearby are still open.
Follow it in order and you won’t end up redesigning a trip around two flights you already paid for.
My partner, who hates itineraries, has a standing rule for island trips: if the ferry is late, we don’t rush. We sit at the cafe on the pier and watch the boats come in. It costs nothing and saves the trip from becoming a sprint. That’s the trade-off I’ll always take: a slightly looser plan over a perfect one that falls apart the moment a boat runs twenty minutes late.