Milan to Naples by train
Trains between Milan and Naples run within the Italy national rail network. The typical end-to-end journey is around 3h 39m.
Operators on this corridor include Trenitalia (Frecciarossa), Italo.
Train fares are dynamic — typical range is €54 to €158. Advance-purchase tickets (1–2 months ahead) almost always beat walk-up prices.
Climate footprint: about 9.0 kg CO₂ per passenger by train vs roughly 103 kg by flight — taking the train saves ~94 kg on this distance.