Fermo 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 Porto S. Giorgio-Fermo and arrive at Siderno every about 3 hours on average. If travelling with Trenitalia, you need to know the Fermo to Siderno train schedule: the first train leaves at 17:27, while the last ride is at 21:53. A Fermo to Siderno train cost about 87.4 €. But how long is the train ride from Fermo to Siderno? Your journey takes about 17 hours on average.