To get from Ostuni a Siderno Superiore by train you can catch one of the 2 trains that everyday travel between Ostuni and Siderno, the closest station to the city. For your trip from Ostuni to Siderno by train you can choose to leave from one of Ostuni main stations: Ostuni If travelling with Trenitalia, you need to know the Ostuni to Siderno train schedule: the first train leaves at 06:18, while the last ride is at 06:57. A Ostuni to Siderno train cost about 26.7 €. But how long is the train ride from Ostuni to Siderno? Your journey takes about 9 hours on average.