To get from Fondi a Siderno Superiore by train you can catch one of the 13 trains that everyday travel between Fondi-Sperlonga and Siderno, the closest station to the city. For your trip from Fondi-Sperlonga to Siderno by train you can choose to leave from one of Fondi-Sperlonga main stations: Fondi-Sperlonga, Napoli Centrale If travelling with Trenitalia, you need to know the Fondi-Sperlonga to Siderno train schedule: the first train leaves at 07:52, while the last ride is at 23:53. A Fondi-Sperlonga to Siderno train cost about 75.70 €. But how long is the train ride from Fondi-Sperlonga to Siderno? Your journey takes about 7 hours on average. Trenitalia offers 2 direct trains between these two cities. If you need to travel this week, prices range from 50.00 € to 50.00€.