Viterbo to Nettuno 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 Nettuno every about 3 hours on average. If travelling with Trenitalia, you need to know the Viterbo to Nettuno train schedule: the first train leaves at 14:50, while the last ride is at 18:34. A Viterbo to Nettuno train cost about 9.5 €. But how long is the train ride from Viterbo to Nettuno? Your journey takes about 4 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Viterbo to Nettuno and find low cost tickets starting from 9 €!