Portici to Piacenza 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 Piacenza every 60 minutes on average. If travelling with Trenitalia, you need to know the Portici to Piacenza train schedule: the first train leaves at 07:00, while the last ride is at 20:30. A Portici to Piacenza train cost about 60.0 €. But how long is the train ride from Portici to Piacenza? Your journey takes about 7 hours on average.