Segrate to Monterotondo 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 Segrate and arrive at Monterotondo-Mentana every about 2 hours on average. If travelling with Trenitalia, you need to know the Segrate to Monterotondo train schedule: the first train leaves at 06:14, while the last ride is at 19:14. A Segrate to Monterotondo train cost about 55.8 €. But how long is the train ride from Segrate to Monterotondo? Your journey takes about 5 hours on average.