Rho 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 Rho and arrive at Viterbo Porta Fiorentina every about 4 hours on average. If travelling with Trenitalia, you need to know the Rho to Viterbo train schedule: the first train leaves at 16:26, while the last ride is at 16:26. A Rho to Viterbo train cost about 93.9 €. But how long is the train ride from Rho to Viterbo? Your journey takes about 6 hours on average.