Campobasso 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 Campobasso and arrive at Viterbo Porta Fiorentina every about 2 hours on average. If travelling with Trenitalia, you need to know the Campobasso to Viterbo train schedule: the first train leaves at 08:36, while the last ride is at 16:50. A Campobasso to Viterbo train cost about 19.3 €. But how long is the train ride from Campobasso to Viterbo? Your journey takes about 6 hours on average.