Isernia 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 Isernia and arrive at Agropoli-Castellabate every about 2 hours on average. If travelling with Trenitalia, you need to know the Isernia to Agropoli train schedule: the first train leaves at 06:07, while the last ride is at 18:58. A Isernia to Agropoli train cost about 10.65 €. But how long is the train ride from Isernia to Agropoli? Your journey takes about 4 hours on average.