Città di Castello to Viterbo 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 Arezzo and arrive at Viterbo Porta Fiorentina every about 2 hours on average. If travelling with Trenitalia, you need to know the Città di Castello to Viterbo train schedule: the first train leaves at 07:43, while the last ride is at 20:14. A Città di Castello to Viterbo train cost about 11.15 €. But how long is the train ride from Città di Castello to Viterbo? Your journey takes about 3 hours on average.