Pomezia to Sciacca 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 Pomezia-S. Palomba and arrive at Castelvetrano every about 2 hours on average. If travelling with Trenitalia, you need to know the Pomezia to Sciacca train schedule: the first train leaves at 06:34, while the last ride is at 21:53. A Pomezia to Sciacca train cost about 87.25 €. But how long is the train ride from Pomezia to Sciacca? Your journey takes about 18 hours on average.