Viterbo 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 Viterbo Porta Fiorentina and arrive at Castelvetrano every about 4 hours on average. If travelling with Trenitalia, you need to know the Viterbo to Castelvetrano train schedule: the first train leaves at 05:15, while the last ride is at 05:15. A Viterbo to Castelvetrano train cost about 189.85 €. But how long is the train ride from Viterbo to Castelvetrano? Your journey takes about 17 hours on average.