Ostuni to Trapani 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 Ostuni and arrive at Trapani every about 4 hours on average. If travelling with Trenitalia, you need to know the Ostuni to Trapani train schedule: the first train leaves at 14:30, while the last ride is at 23:17. A Ostuni to Trapani train cost about 102.3 €. But how long is the train ride from Ostuni to Trapani? Your journey takes about 18 hours on average.