Portici to Alcamo 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 Alcamo Diramazione every about 4 hours on average. If travelling with Trenitalia, you need to know the Portici to Alcamo train schedule: the first train leaves at 08:50, while the last ride is at 22:50. A Portici to Alcamo train cost about 70.65 €. But how long is the train ride from Portici to Alcamo? Your journey takes about 15 hours on average.