Bacoli 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 Pozzuoli Solfatara, Roma Tiburtina and arrive at Viterbo Porta Fiorentina every 60 minutes on average. If travelling with Trenitalia, you need to know the Bacoli to Viterbo train schedule: the first train leaves at 05:23, while the last ride is at 21:46. A Bacoli to Viterbo train cost about 6.9 €. But how long is the train ride from Bacoli to Viterbo? Your journey takes about 4 hours on average. Trenitalia offers 2 direct trains between these two cities.