Airports in Greece

39, on the regulator's own count of aerodromes serving commercial air transport: one at Athens, 14 regional airports under the Fraport Greece concession, and 24 state airports under the Hellenic Aviation Service Provider. Smaller airfields that carry no scheduled commercial traffic are not in that register and are not counted here.

Three operators. Athens International Airport runs Athens. Fraport Greece holds a 40-year concession over 14 regional airports, 2017 to 2057, with a 65% stake in the two concession companies. The Hellenic Aviation Service Provider operates the remaining state airports, Heraklion among them.

Athens (ATH) for Athens Riviera; Kefalonia (EFL) for Kefalonia; Kalamata (KLX) for Kalamata; Naxos (JNX) for Naxos. Poros, Tinos, Sparti have no airport in the register at all — they are reached by road or by ferry, which the destination guides cover.

The record does not hold that. The regulator publishes no per-airport traffic page we can cite, and the passenger figures in circulation come from press write-ups of its briefings rather than from a document. Athens is plainly the largest by any account, and this page will not put a number on it until there is one to transcribe.

This page carries 9 of them — ATH for Athens, CFU for Corfu, EFL for Kefalonia, MJT for Mitilini, JMK for Mykonos, JTR for Santorini, SKG for Thessaloniki, KLX for Kalamata, JNX for Naxos. The operators do not publish codes consistently: Fraport's own profile pages for Kefalonia and Aktion show none. The rest are left blank rather than filled in from memory.

No. Whether an airport is designated for international traffic is a customs and border-control fact, and the operator register this page is built from does not state it. Grouping by operator is what the source supports, so that is what the list shows.