Rieti 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 Cittaducale and arrive at Castelvetrano every about 3 hours on average. If travelling with Trenitalia, you need to know the Rieti to Castelvetrano train schedule: the first train leaves at 07:30, while the last ride is at 21:10. A Rieti to Castelvetrano train cost about 94.65 €. But how long is the train ride from Rieti to Castelvetrano? Your journey takes about 6 hours on average.