Pompei 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 Pompei and arrive at Siderno every about 12 hours on average. If travelling with Trenitalia, you need to know the Pompei to Siderno train schedule: the first train leaves at 15:01, while the last ride is at 15:01. A Pompei to Siderno train cost about 64.8 €. But how long is the train ride from Pompei to Siderno? Your journey takes about 7 hours on average.