Flying to Santorini
You can fly to Santorini from Athens Airport Eleftherios Venizelos but you might be surprised to find out you can also fly there directly from the main cities of Europe, such as Amsterdam, Paris, London and a couple of others.
One thing you should keep in mind if you are doing a tour of several Greek islands is that there are usually no direct flights from one island to another.
Another pro of traveling by plane to Santorini is that you can book the flights way in advance without having to worry about availability. It’s a bit more difficult to book ferry tickets. Despite that, in most cases getting to Santorini by ferry is preferable.