Viterbo to Comiso 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 Viterbo Porta Fiorentina and arrive at Comiso every about 12 hours on average. If travelling with Trenitalia, you need to know the Viterbo to Comiso train schedule: the first train leaves at 19:30, while the last ride is at 19:30. A Viterbo to Comiso train cost about 127.7 €. But how long is the train ride from Viterbo to Comiso? Your journey takes about 17 hours on average.