Marino 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 Marino Laziale and arrive at Viterbo Porta Fiorentina every about 2 hours on average. If travelling with Trenitalia, you need to know the Marino to Viterbo train schedule: the first train leaves at 09:03, while the last ride is at 20:08. A Marino to Viterbo train cost about 6.9 €. But how long is the train ride from Marino to Viterbo? Your journey takes about 5 hours on average.