Mentana to Ancona 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 Ancona every about 1 hour on average. If travelling with Trenitalia, you need to know the Mentana to Ancona train schedule: the first train leaves at 08:14, while the last ride is at 20:14. A Mentana to Ancona train cost about 15.3 €. But how long is the train ride from Mentana to Ancona? Your journey takes about 5 hours on average.