Carmagnola 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 Carmagnola and arrive at Siderno every about 4 hours on average. If travelling with Trenitalia, you need to know the Carmagnola to Siderno train schedule: the first train leaves at 19:10, while the last ride is at 19:10. A Carmagnola to Siderno train cost about 135.4 €. But how long is the train ride from Carmagnola to Siderno? Your journey takes about 17 hours on average.