Olbia to Siderno 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 Salerno, Roma Termini and arrive at Siderno every 60 minutes on average. If travelling with Trenitalia, you need to know the Olbia to Siderno train schedule: the first train leaves at 02:21, while the last ride is at 22:50. A Olbia to Siderno train cost about 41.1 €. But how long is the train ride from Olbia to Siderno? Your journey takes about 9 hours on average.