Sulmona 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 Sulmona and arrive at Agropoli-Castellabate every about 3 hours on average. If travelling with Trenitalia, you need to know the Sulmona to Agropoli train schedule: the first train leaves at 05:57, while the last ride is at 15:13. A Sulmona to Agropoli train cost about 52.9 €. But how long is the train ride from Sulmona to Agropoli? Your journey takes about 7 hours on average.