Erba 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 Salerno and arrive at Castelvetrano every about 12 hours on average. If travelling with Trenitalia, you need to know the Erba to Sciacca train schedule: the first train leaves at 22:32, while the last ride is at 22:32. A Erba to Sciacca train cost about 75.25 €. But how long is the train ride from Erba to Sciacca? Your journey takes about 15 hours on average.