Prato 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 Prato Centrale and arrive at Castelvetrano every about 6 hours on average. If travelling with Trenitalia, you need to know the Prato to Castelvetrano train schedule: the first train leaves at 21:31, while the last ride is at 21:31. A Prato to Castelvetrano train cost about 123.1 €. But how long is the train ride from Prato to Castelvetrano? Your journey takes 34 minutes on average.