Viterbo to Avola 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 Avola every about 12 hours on average. If travelling with Trenitalia, you need to know the Viterbo to Avola train schedule: the first train leaves at 05:05, while the last ride is at 05:05. A Viterbo to Avola train cost about 93.75 €. But how long is the train ride from Viterbo to Avola? Your journey takes about 15 hours on average.