Quarto 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 Quarto di Marano and arrive at Viterbo Porta Fiorentina every about 2 hours on average. If travelling with Trenitalia, you need to know the Quarto to Viterbo train schedule: the first train leaves at 05:28, while the last ride is at 18:43. A Quarto to Viterbo train cost about 16.0 €. But how long is the train ride from Quarto to Viterbo? Your journey takes about 6 hours on average.