Viterbo to Vasto 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 Porto di Vasto every about 3 hours on average. If travelling with Trenitalia, you need to know the Viterbo to Vasto train schedule: the first train leaves at 06:08, while the last ride is at 13:57. A Viterbo to Vasto train cost about 22.7 €. But how long is the train ride from Viterbo to Vasto? Your journey takes about 8 hours on average.