From Naples’ Capodichino airport, take the specially-marked Alibus (3 Euro ticket, purchased onboard) to the Napoli Centrale train station at Piazza Garibaldi - the 3S city bus route is no longer in operation. Be sure to validate your ticket in the onboard box. Alternatively, a taxi from the airport to the train station can be hired for approximately 15-25 euros, but use caution as taxi drivers may overcharge. please be very careful there are many pick pockets on the station.and you will get pushed in the hustel and bustle of the station and not realise that they maybe stealing you wallet.