Portici to San Cataldo 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 Portici-Ercolano and arrive at S. Cataldo every about 12 hours on average. If travelling with Trenitalia, you need to know the Portici to San Cataldo train schedule: the first train leaves at 22:55, while the last ride is at 22:55. A Portici to San Cataldo train cost about 60.0 €. But how long is the train ride from Portici to San Cataldo? Your journey takes about 16 hours on average.