Siderno to Agropoli 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 Siderno and arrive at Agropoli-Castellabate every about 1 hour on average. If travelling with Trenitalia, you need to know the Siderno to Agropoli train schedule: the first train leaves at 05:45, while the last ride is at 16:13. A Siderno to Agropoli train cost about 20.8 €. But how long is the train ride from Siderno to Agropoli? Your journey takes about 6 hours on average.