Formia to San Cataldo 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 Formia-Gaeta and arrive at S. Cataldo every about 6 hours on average. If travelling with Trenitalia, you need to know the Formia to San Cataldo train schedule: the first train leaves at 22:44, while the last ride is at 23:40. A Formia to San Cataldo train cost about 91.6 €. But how long is the train ride from Formia to San Cataldo? Your journey takes about 17 hours on average.