Mentana to Modica 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 Modica every about 6 hours on average. If travelling with Trenitalia, you need to know the Mentana to Modica train schedule: the first train leaves at 06:32, while the last ride is at 20:32. A Mentana to Modica train cost about 175.8 €. But how long is the train ride from Mentana to Modica? Your journey takes about 15 hours on average.