Sezze 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 Sezze Romano and arrive at Viterbo Porta Fiorentina every about 1 hour on average. If travelling with Trenitalia, you need to know the Sezze to Viterbo train schedule: the first train leaves at 06:55, while the last ride is at 19:32. A Sezze to Viterbo train cost about 9.5 €. But how long is the train ride from Sezze to Viterbo? Your journey takes about 3 hours on average.