What to book in advance for Greece, and what to leave

A taverna table is not capped in any way that matters, because there is another taverna. A time slot at the Acropolis is capped by definition. A cabin on the one boat that runs your route is capped by the hull. That is the whole rule, and everything below is it applied.

Work through what is capped first, in the order that a failure would cost you most, and then stop. Over-booking a Greek holiday is its own kind of mistake: it turns a country that rewards changing your mind into a schedule you have to keep.

The rule: book what is capped, not what is important

Ask two questions about anything you are tempted to reserve.

Is the supply fixed? Seats on a vessel, entries in a time slot, cars in a small island fleet and rooms on a small island in August are all fixed. Restaurant tables, bus seats, beach space and most museum entries are not, in the sense that a full one is replaced by another one twenty metres away.

What does failure cost? Missing a ferry can cost a day and a night, because the next one may be tomorrow. Missing a restaurant costs you a walk to the next street. That asymmetry is the real ranking, and it puts transport at the top of every list regardless of how much you care about food.

Everything capped and expensive to miss goes in the first tier. Everything plentiful and cheap to miss can wait until you are there, and waiting is often the better trip.

First tier: the flights, and the ferry legs the trip hangs on

Flights go first, because they set the dates everything else answers to, and because peak-season fares to Greece rise as the season fills rather than falling at the last minute. The mechanics are in flights to Greece.

Then the ferries, and only the ones that are load-bearing. A load-bearing leg is one where a failure breaks the trip: the crossing on the day you land, the crossing back to catch a flight home, and any leg on a route with few sailings. The middle-of-the-trip hop between two well-connected islands is usually not one.

Three things about Greek ferry tickets that change how you book them.

They are personal. Tickets are issued in a named passenger’s name under Presidential Decree 23/1999 as amended, and the operator needs the full name, gender, nationality and date of birth of each passenger at the moment of issue, so have the passport details to hand rather than the credit card alone. Blue Star Ferries, whose published conditions of travel set this out, also states plainly that it is strictly forbidden to issue tickets on board, so the ramp is not a fallback. And the same conditions tell passengers to be at the embarkation area at least an hour before departure, and say the same for anyone travelling with a car.

The consequence for planning is that a ferry is not a train. You cannot decide at the port, you cannot send a friend with your ticket, and the buffer is not five minutes. Build the crossing into the day rather than appending it. How the boats actually work is in Greek island ferries, and what happens when one does not sail is in when a ferry is cancelled.

The sights that are now a slot, not a day

This is the change that catches returning visitors, because it was not true the last time they came.

The Acropolis is a timed-entry site. Entry is by a slot chosen when you buy, and the state ticket platform run by the Hellenic Organization of Cultural Resources Development states that timed-entry tickets are required for all visitors and that, since 1 April 2024, entry is only possible during the selected time slot. The grace either side of the slot is measured in minutes for the Acropolis specifically, where other archaeological sites are given a wider window.

Read that as a planning fact rather than a ticketing detail. It means the Acropolis is now a fixed appointment in the middle of an Athens day, that the early slots are the ones that go first and are also the ones worth having in summer heat, and that turning up on spec is not the plan it used to be. Build the rest of the day around it: the site itself is covered on the Acropolis, and the day around it on Athens.

Two smaller cousins of the same problem. Delos is reachable only on excursion boats that run to a fixed rota from one specific port on Mykonos, so the boat is the constraint rather than the site. And the Samaria gorge is a one-way walk whose return leg is a boat and then a bus, so what needs arranging is the chain, not the entry.

We print no prices and no opening hours anywhere on this site, and the reason is on display here: the operating schedule at state sites is reissued, and a page carrying last year’s hours is worse than a page carrying none. Check the site’s own page for the day you are going.

Rooms, and the two fortnights when the room is the trip

For most of the season, accommodation in Greece rewards booking a reasonable way out and does not punish flexibility.

Two stretches are different, and on both of them the competition is domestic. Greek Holy Week and the fortnight around 15 August are when Greeks travel to their own islands and villages, and they book in spring. In those weeks a room on a small island is the scarce thing, and the correct move is to take it when you first look rather than to wait for a better price. Which dates those actually are in your travel year, and why the Easter one moves, is on public holidays and what closes.

The other case worth booking early is anywhere the supply is genuinely small: a caldera-view room on Santorini, a village with four guesthouses in it, or a small island in its short season. Small supply plus a famous view is the reliable recipe for a room that goes months out.

Outside those, a few weeks of lead time is usually enough, and the freedom to change islands when the wind changes is worth more than the saving.

The car, and the one detail people forget

Island rental fleets are small. Reserve before you land rather than at the port, particularly in the peak weeks, and particularly on the islands where the car is most of the trip.

The detail people forget is the gearbox. Automatics are a thin sub-fleet in Greece rather than the default, so if you need one, ask for it at the moment you book and treat it as a scarce option rather than something to sort out at the desk. The rest of it, the excess, the fuel policy and the five minutes of photographs that decide every damage dispute, is in renting a car in Greece. Whether you need a car on your island at all is a separate question, and it is worth settling first.

If you are moving the car between islands, check the rental agreement’s clause on ferries before you book the crossing, because many contracts do not allow it.

Transfers, and the arrival you did not think about

The one transfer worth arranging in advance is the one at the end of a late arrival: a flight that lands after the buses have finished, a ferry into a port that is a switchback drive from your village, or a first night anywhere you have never been with luggage and no plan.

Everything else can usually be sorted on the ground. The full comparison of trains, buses, taxis and pre-booked cars is in airport transfers in Greece.

What you can leave until you get there

This half of the page matters as much as the first, because the most common Greece booking mistake is not under-booking. It is arriving with every evening spoken for.

• Restaurants. Walking in is the normal way it is done, and it is how you end up eating somewhere you were not planning to. The exceptions worth a call are a specific well-known table, a sunset seat with a view attached, and a holiday weekend.
• Most museums and sites. Timed entry is the exception rather than the rule, and outside the headline sites you buy at the gate.
• Buses. Island and intercity buses take you as you find them.
• Day boats and beach excursions. These are usually arranged a day or two ahead at the harbour, which is also when you find out whether the wind is going to allow them.
• Beaches, walks and towns. Nothing to book, which is the point of the place.

The one thing to sort before you fly that is not a booking at all is your entry paperwork. What applies to your passport is in visas and entry requirements.

The order to work in

Six steps, and stopping after six.

1. Flights, which fix the dates.
2. The load-bearing ferry legs, especially the one on arrival day and the one that connects to your flight home.
3. Rooms, all of them if you are travelling in Holy Week or mid-August or to a small island, and the first and last nights otherwise.
4. Timed-entry sights, the Acropolis above all, placed as fixed appointments in the shape of the day.
5. The rental car, with the gearbox specified.
6. The one transfer that covers a late or awkward arrival.

Then stop, and leave the rest of it to the country. If you want a shape to hang all of this on, the itineraries do the sequencing for you, and island hopping explains how the legs fit together in the first place.

One last thing about cancellation terms

Read the change and cancellation terms rather than assuming them, particularly for ferries. Blue Star Ferries, for instance, publishes different regimes for high season and low season, and the high-season one is the stricter of the two. Others set their own. The practical takeaway is that a summer ferry booking is harder to unwind than the same booking in May, which is one more argument for locking the summer legs down early and staying loose in the shoulder months.

Common questions

What do you need to book in advance in Greece?

Flights first, then the ferry legs the trip depends on, then rooms if you are travelling around Greek Easter or mid-August or to a small island. Add timed-entry sights such as the Acropolis, the rental car if your island needs one, and a transfer for a late arrival. Restaurants, buses, most museums and day boats can wait until you are there.

Do you need to book Greek ferries in advance?

For the legs that carry the trip, yes. Tickets are issued in a named passenger’s name under Presidential Decree 23/1999 as amended, and Blue Star Ferries’ published conditions state that issuing tickets on board is strictly forbidden, so the port is not a fallback. Book the arrival-day crossing and the one that connects to your flight home; mid-trip hops on busy routes are less critical.

Do you need to book Acropolis tickets in advance?

Yes, and the reason is the slot rather than the queue. The state ticket platform states that timed-entry tickets are required for all visitors and that entry is only possible during the selected time slot, with only a few minutes of grace either side at the Acropolis. Choose an early slot and build the rest of your Athens day around it.

How far in advance should you book a Greece trip?

Any specific number you are handed is a guess dressed as advice, so the honest answer is a rule rather than a figure. Book by scarcity: lock the flights and the load-bearing ferry legs as soon as the dates are fixed, take small-island and peak-fortnight rooms the first time you look, and leave the flexible things flexible. Greek Holy Week and mid-August are the two stretches that demand the longest lead.

Do you need to book restaurants in Greece?

Usually not. Walking in is the normal way it is done, and it is one of the pleasures of the country. Reserve for a specific well-known place, for a table with a famous view, and around public holidays, when the domestic crowd is out in numbers.

What is the biggest booking mistake people make in Greece?

Booking everything. A trip with every evening committed cannot absorb a windy day, a ferry that does not sail, or an island you liked more than you expected. Lock the capped, expensive-to-miss things and leave the rest open.