Athens Airport (Greek: Αεροδρόμιο, Aerodromio), also known as Athens International Airport (Διεθνής Αερολιμένας Αθηνών, Diethnis Aerolimenas Athinon) on signage, is a railway station and metro station that serves the international airport of Athens, Greece. It operates on both the Athens Suburban Railway as well as Line 3 of the Athens Metro. It is the first and only train station in Greece that is not managed by GAIAOSE. It is owned by the airport, which charges the train operating companies (Hellenic Train and STASY) fees for its use.