Grottaferrata to Sulmona 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 Frascati and arrive at Sulmona every about 2 hours on average. If travelling with Trenitalia, you need to know the Grottaferrata to Sulmona train schedule: the first train leaves at 09:37, while the last ride is at 16:36. A Grottaferrata to Sulmona train cost about 12.7 €. But how long is the train ride from Grottaferrata to Sulmona? Your journey takes about 5 hours on average.