Mentana to Lentini 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 Lentini every about 4 hours on average. If travelling with Trenitalia, you need to know the Mentana to Lentini train schedule: the first train leaves at 06:32, while the last ride is at 20:32. A Mentana to Lentini train cost about 95.1 €. But how long is the train ride from Mentana to Lentini? Your journey takes about 12 hours on average.