Carpi 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 Carpi and arrive at Siderno every about 3 hours on average. If travelling with Trenitalia, you need to know the Carpi to Siderno train schedule: the first train leaves at 10:27, while the last ride is at 20:27. A Carpi to Siderno train cost about 70.75 €. But how long is the train ride from Carpi to Siderno? Your journey takes about 15 hours on average.