Bagnoli 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 Bagnoli-Agnano Terme and arrive at Viterbo Porta Fiorentina every about 2 hours on average. If travelling with Trenitalia, you need to know the Bagnoli to Viterbo train schedule: the first train leaves at 06:02, while the last ride is at 18:47. A Bagnoli to Viterbo train cost about 16.5 €. But how long is the train ride from Bagnoli to Viterbo? Your journey takes about 5 hours on average.