Potenza to Modica 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 Modica every about 12 hours on average. If travelling with Trenitalia, you need to know the Potenza to Modica train schedule: the first train leaves at 06:51, while the last ride is at 06:51. A Potenza to Modica train cost about 66.5 €. But how long is the train ride from Potenza to Modica? Your journey takes about 14 hours on average.