There is no single right answer
Santorini, Mykonos, Crete, Rhodes, Kos, Corfu, Zakynthos, Kefalonia, Samos, Chios, Lesbos, Naxos, Paros, Milos and several other islands have an airport. Others, such as Hydra, Spetses, Sifnos and Folegandros, work only by ferry.
The quick picture
A flight makes more sense when
You are going to Rhodes, Crete, Karpathos or Corfu, you have only a few days, you are travelling in winter, or you already know the sea makes you sick.
A ferry makes more sense when
You have a lot of luggage, you are travelling with a car, you are island hopping, or you are heading to the Cyclades on a good route from Piraeus or Rafina.
Cost: the price is not always obvious at first
- For Santorini, a conventional ferry can start lower than a flight, while a fast ferry often comes close to airfare.
- For Mykonos, something similar happens.
- For Crete, deck is cheaper, but a cabin raises the total.
- A flight often needs a second reading, because a cheap fare may not include a checked bag.
- On ferries, luggage is not weighed. That changes the calculation for families, groups and travellers with equipment.
- If you have two large suitcases, a stroller or a bike, the ferry often becomes the calmer option.
Door-to-door time
- The Athens-Santorini flight is less than an hour, but from Ioulianou 50 to the airport you need about one hour with public transport.
- Then add check-in, security, boarding, baggage claim and the transfer from the island airport to where you are staying.
- The real total easily reaches 3.5 to 4 hours.
- With a fast ferry from Piraeus, the same route can work out to about 6 to 7 hours door to door.
- So the flight saves time, but not as dramatically as the headline "45 minutes" suggests.
From Ioulianou 50
The practical difference
From Ioulianou 50, Piraeus has one practical advantage: you walk a few minutes to Victoria and take Line 1 directly. In about 30 minutes you are at the port. For the airport, you go by Line 1 to Monastiraki and then change to Line 3. Allow about 1 hour, depending on the wait.
Luggage and comfort
- On a flight, baggage rules matter and a cheap-looking fare can change once a suitcase is added.
- On a ferry, you bring what you can carry.
- That does not mean overpacking; it means you are not paying because a suitcase is 24 kg instead of 23.
- For families with children, that difference is often significant.
If you want a car
- A flight means renting on the island.
- A ferry takes a car, but the vehicle ticket costs extra and needs booking.
- For a short stay, it may not be worth it.
- For a family, a lot of gear or two weeks on a large island, the discussion changes.
Weather and reliability
- Flights are cancelled less often, but delays are common enough in summer.
- Ferries depend more on the wind, especially fast ferries in the Cyclades during meltemi season.
- Large conventional ferries cope better, though serious weather still changes the plan.
- If you have an international flight the next day, it is safer to return to Athens the night before.
Times that put things in order
30 minutes
Ioulianou 50 to Piraeus via Victoria.
About 1 hour
Ioulianou 50 to the airport by metro, depending on the wait.
3.5-4 hours
A realistic Athens-Santorini total with a flight.
6-7 hours
Piraeus to Santorini by fast ferry, door to door.
By island, what makes sense
- Santorini: a flight wins when time is short. A fast ferry makes sense if you want the sea, less baggage control or a better timetable.
- Mykonos: check Rafina as well as Piraeus.
- Paros and Naxos: the ferry is often simpler than the smaller and more limited flight availability.
- Milos: compare times carefully, because the small airport does not always solve the schedule.
- Crete: a flight is quick and practical. The overnight ferry makes sense if you want a car or if the cabin replaces a hotel night.
- Rhodes and Corfu: the flight is usually the clean choice unless the ferry trip itself is part of the plan.
- Hydra, Spetses and Aegina: the ferry has no real rival there.
- For island hopping, ferries remain the base.
🛫 Greek airlines
- Aegean and Olympic Air cover a large part of the domestic network.
- Sky Express is also important on many domestic routes.
- Depending on the season, other airlines or direct international routes appear as well.
- In summer, direct international flights to popular islands are often the cleanest solution if you do not want to stop in Athens.
- In winter, options shrink and Athens comes back into the plan.
Direct international flights
- Many popular islands have direct summer flights from abroad.
- Santorini, Mykonos, Crete, Rhodes, Corfu, Kos and Zakynthos are among the clearest examples.
- If you do not want a stop in Athens, that can be the best solution.
- These routes are mostly seasonal, so in winter Athens is usually back in the plan.
A practical rule of thumb
- If the ferry is under 3 hours, it is hard to justify a flight.
- If the ferry is over 6 hours and you do not need a car, look seriously at flying.
- If you have a lot of luggage, the ferry usually fits better.
- If you are island hopping, ferries remain the main tool.
- For a short break of two or three days, time is expensive.
- For a ten-day trip, a difference of two hours matters less.
- Then comfort, cost and how tired you want to arrive start to matter more.
Frequently asked questions
Which is the cheaper way to reach an island?
Usually a conventional ferry with a deck ticket, especially outside the peak of summer.
Which is the fastest?
A direct international flight to the island, if there is one. Otherwise, a flight from Athens.
What works better for families?
The ferry is often more comfortable for luggage and for moving around during the trip. For very distant islands, the flight saves a lot of fatigue.
Can I take my own car?
Yes, but only by ferry. Book the vehicle place early for July and August.
What happens with island hopping?
Ferries are the base. Flights between islands exist in a few cases, but they rarely work as naturally as the ferry network. For more detail, see the guide to Greek island hopping.
Sources:
— Kathy
