Florence to Portici trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Firenze S. M. Novella and arrive at Portici-Ercolano every 60 minutes on average. If travelling with Trenitalia, you need to know the Florence to Portici train schedule: the first train leaves at 00:40, while the last ride is at 19:19. A Florence to Portici train cost about 30.5 €. But how long is the train ride from Florence to Portici? Your journey takes about 4 hours on average.