San Giovanni Rotondo 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 Siponto and arrive at Siderno every about 6 hours on average. If travelling with Trenitalia, you need to know the San Giovanni Rotondo to Siderno train schedule: the first train leaves at 19:15, while the last ride is at 20:43. A San Giovanni Rotondo to Siderno train cost about 48.2 €. But how long is the train ride from San Giovanni Rotondo to Siderno? Your journey takes about 15 hours on average.