Which Greek islands are actually open in winter?

Every Greek island and mainland town with a winter flight, rated 1–5 for how much is genuinely open between October and April. The short answer is just below.

Every island, by how much stays open

Twenty-nine islands with a winter flight, grouped by our 1–5 rating. Crete never really closes; a handful of small islands very nearly do. The ratings are also free to download and reuse.

Here's the part most guides skip: not every airport is worth your winter, and we'll say so on the page rather than after you've landed. Each one carries an open-o-meter — a blunt 1-to-5 read on how awake that corner actually is between October and April. Some hum. Some hibernate. We don't bury the quiet corners; the list just tells you, up front, which is which.