Mentana to Caltanissetta 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 Monterotondo-Mentana and arrive at Caltanissetta Centrale every about 12 hours on average. If travelling with Trenitalia, you need to know the Mentana to Caltanissetta train schedule: the first train leaves at 06:32, while the last ride is at 06:32. A Mentana to Caltanissetta train cost about 161.8 €. But how long is the train ride from Mentana to Caltanissetta? Your journey takes about 14 hours on average.