Sora 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 Sora and arrive at Viterbo Porta Fiorentina every about 6 hours on average. If travelling with Trenitalia, you need to know the Sora to Viterbo train schedule: the first train leaves at 15:38, while the last ride is at 17:45. A Sora to Viterbo train cost about 13.5 €. But how long is the train ride from Sora to Viterbo? Your journey takes about 6 hours on average.