Potenza to San Severo 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 Potenza Superiore and arrive at S. Severo every about 2 hours on average. If travelling with Trenitalia, you need to know the Potenza to San Severo train schedule: the first train leaves at 08:42, while the last ride is at 19:48. A Potenza to San Severo train cost about 7.95 €. But how long is the train ride from Potenza to San Severo? Your journey takes about 3 hours on average.