Piombino 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 Piombino and arrive at Viterbo Porta Fiorentina every about 3 hours on average. If travelling with Trenitalia, you need to know the Piombino to Viterbo train schedule: the first train leaves at 09:26, while the last ride is at 18:20. A Piombino to Viterbo train cost about 22.85 €. But how long is the train ride from Piombino to Viterbo? Your journey takes about 6 hours on average.