Fossano 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 Fossano and arrive at Viterbo Porta Fiorentina every about 4 hours on average. If travelling with Trenitalia, you need to know the Fossano to Viterbo train schedule: the first train leaves at 06:22, while the last ride is at 11:13. A Fossano to Viterbo train cost about 62.95 €. But how long is the train ride from Fossano to Viterbo? Your journey takes about 11 hours on average.