Potenza to Comiso 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 Comiso every about 12 hours on average. If travelling with Trenitalia, you need to know the Potenza to Comiso train schedule: the first train leaves at 11:20, while the last ride is at 11:20. A Potenza to Comiso train cost about 68.3 €. But how long is the train ride from Potenza to Comiso? Your journey takes about 2 hours on average.