Rocca di Papa to Palermo 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 Castel Gandolfo and arrive at Palermo Centrale every about 2 hours on average. If travelling with Trenitalia, you need to know the Rocca di Papa to Palermo train schedule: the first train leaves at 06:36, while the last ride is at 20:51. A Rocca di Papa to Palermo train cost about 61.1 €. But how long is the train ride from Rocca di Papa to Palermo? Your journey takes about 13 hours on average.