Flight
Naples International Airport (NAP) — about 15 minutes from the city center.
Flight
You can also fly into Rome (FCO) and take a high-speed train to Naples (around 1–1.5 hours).
Train
Italy has a great train system! You can easily take day trips to places like the Amalfi Coast, Pompeii, and even Rome. Check: italotreno.it or trenitalia.com