Comiso 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 Comiso and arrive at Castelvetrano every about 6 hours on average. If travelling with Trenitalia, you need to know the Comiso to Sciacca train schedule: the first train leaves at 20:24, while the last ride is at 20:24. A Comiso to Sciacca train cost about 17.6 €. But how long is the train ride from Comiso to Sciacca? Your journey takes about 17 hours on average.