Sanremo to Castelvetrano 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 San Remo and arrive at Castelvetrano every about 3 hours on average. If travelling with Trenitalia, you need to know the Sanremo to Castelvetrano train schedule: the first train leaves at 20:15, while the last ride is at 20:15. A Sanremo to Castelvetrano train cost about 224.85 €. But how long is the train ride from Sanremo to Castelvetrano? Your journey takes about 2 hours on average.