Mentana to Siderno 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 Roma Termini, Monterotondo-Mentana and arrive at Siderno every about 2 hours on average. If travelling with Trenitalia, you need to know the Mentana to Siderno train schedule: the first train leaves at 07:35, while the last ride is at 22:50. A Mentana to Siderno train cost about 56.4 €. But how long is the train ride from Mentana to Siderno? Your journey takes about 10 hours on average. Thanks to Trenitalia, offers, you can save on your trip from Mentana to Siderno and find low cost tickets starting from 27 €!