Valenza to Castelvetrano 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 Valenza and arrive at Castelvetrano every about 2 hours on average. If travelling with Trenitalia, you need to know the Valenza to Castelvetrano train schedule: the first train leaves at 11:54, while the last ride is at 21:57. A Valenza to Castelvetrano train cost about 87.65 €. But how long is the train ride from Valenza to Castelvetrano? Your journey takes about 4 hours on average.