Ostuni to Caltanissetta 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 Caltanissetta Centrale every about 12 hours on average. If travelling with Trenitalia, you need to know the Ostuni to Caltanissetta train schedule: the first train leaves at 21:02, while the last ride is at 21:02. A Ostuni to Caltanissetta train cost about 64.6 €. But how long is the train ride from Ostuni to Caltanissetta? Your journey takes about 24 hours on average.