Valenza 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 Valenza and arrive at Siderno every about 3 hours on average. If travelling with Trenitalia, you need to know the Valenza to Siderno train schedule: the first train leaves at 07:58, while the last ride is at 18:54. A Valenza to Siderno train cost about 87.4 €. But how long is the train ride from Valenza to Siderno? Your journey takes about 18 hours on average.