Piacenza to Sciacca 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 Piacenza and arrive at Castelvetrano every about 2 hours on average. If travelling with Trenitalia, you need to know the Piacenza to Sciacca train schedule: the first train leaves at 17:50, while the last ride is at 23:05. A Piacenza to Sciacca train cost about 77.65 €. But how long is the train ride from Piacenza to Sciacca? Your journey takes about 17 hours on average.