San Severo 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 S. Severo and arrive at Viterbo Porta Fiorentina every about 1 hour on average. If travelling with Trenitalia, you need to know the San Severo to Viterbo train schedule: the first train leaves at 06:56, while the last ride is at 23:24. A San Severo to Viterbo train cost about 26.6 €. But how long is the train ride from San Severo to Viterbo? Your journey takes about 9 hours on average.