Gravina in Puglia 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 Gravina in Puglia and arrive at Viterbo Porta Fiorentina every about 1 hour on average. If travelling with Trenitalia, you need to know the Gravina in Puglia to Viterbo train schedule: the first train leaves at 07:10, while the last ride is at 22:15. A Gravina in Puglia to Viterbo train cost about 58.7 €. But how long is the train ride from Gravina in Puglia to Viterbo? Your journey takes about 16 hours on average.