Monopoli 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 Monopoli and arrive at Viterbo Porta Fiorentina every about 6 hours on average. If travelling with Trenitalia, you need to know the Monopoli to Viterbo train schedule: the first train leaves at 07:36, while the last ride is at 11:18. A Monopoli to Viterbo train cost about 63.6 €. But how long is the train ride from Monopoli to Viterbo? Your journey takes about 12 hours on average.