Arzignano 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 Salerno, Montebello and arrive at Siderno every about 2 hours on average. If travelling with Trenitalia, you need to know the Arzignano to Siderno train schedule: the first train leaves at 02:21, while the last ride is at 19:18. A Arzignano to Siderno train cost about 41.1 €. But how long is the train ride from Arzignano to Siderno? Your journey takes about 12 hours on average.