Poggibonsi 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 Poggibonsi-S. Gimignano and arrive at Viterbo Porta Fiorentina every about 1 hour on average. If travelling with Trenitalia, you need to know the Poggibonsi to Viterbo train schedule: the first train leaves at 09:46, while the last ride is at 18:49. A Poggibonsi to Viterbo train cost about 15.95 €. But how long is the train ride from Poggibonsi to Viterbo? Your journey takes about 5 hours on average.