Naples 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 Roma Termini, Roma Tiburtina and arrive at Viterbo Porta Fiorentina every 60 minutes on average. If travelling with Trenitalia, you need to know the Naples to Viterbo train schedule: the first train leaves at 05:45, while the last ride is at 21:46. A Naples to Viterbo train cost about 5.40 €. But how long is the train ride from Naples to Viterbo? Your journey takes about 2 hours on average. Trenitalia offers 4 direct trains between these two cities. Thanks to Trenitalia, offers, you can save on your trip from Naples to Viterbo and find low cost tickets starting from 5 €! If you need to travel this week, prices start from 5.40€ to a maximum price of 8.20€. When booking your train ticket a few weeks in advance though, you can find low cost trains from Naples to Viterbo with fares starting from 5.40€, saving up to 30%.