To get from Isernia a Siderno Superiore by train you can catch one of the 13 trains that everyday travel between Isernia and Siderno, the closest station to the city. For your trip from Isernia to Siderno by train you can choose to leave from one of Isernia main stations: Isernia, Napoli Centrale If travelling with Trenitalia, you need to know the Isernia to Siderno train schedule: the first train leaves at 07:27, while the last ride is at 23:53. A Isernia to Siderno train cost about 49.90 €. But how long is the train ride from Isernia to Siderno? Your journey takes about 8 hours on average. Trenitalia offers 2 direct trains between these two cities. If you need to travel this week, prices range from 19.90 € to 54.90€.