Agrigento 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 Agrigento Bassa and arrive at Viterbo Porta Fiorentina every about 6 hours on average. If travelling with Trenitalia, you need to know the Agrigento to Viterbo train schedule: the first train leaves at 08:21, while the last ride is at 16:27. A Agrigento to Viterbo train cost about 117.3 €. But how long is the train ride from Agrigento to Viterbo? Your journey takes about 16 hours on average.