Porto San Giorgio 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 Porto S. Giorgio-Fermo and arrive at Viterbo Porta Fiorentina every about 4 hours on average. If travelling with Trenitalia, you need to know the Porto San Giorgio to Viterbo train schedule: the first train leaves at 17:20, while the last ride is at 17:20. A Porto San Giorgio to Viterbo train cost about 18.8 €. But how long is the train ride from Porto San Giorgio to Viterbo? Your journey takes about 6 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Porto San Giorgio to Viterbo and find low cost tickets starting from 20 €!