Manfredonia 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 Manfredonia and arrive at Viterbo Porta Fiorentina every about 2 hours on average. If travelling with Trenitalia, you need to know the Manfredonia to Viterbo train schedule: the first train leaves at 06:38, while the last ride is at 20:40. A Manfredonia to Viterbo train cost about 45.4 €. But how long is the train ride from Manfredonia to Viterbo? Your journey takes about 12 hours on average.