Portogruaro to Niscemi 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 Portogruaro-Caorle and arrive at Niscemi every about 2 hours on average. If travelling with Trenitalia, you need to know the Portogruaro to Niscemi train schedule: the first train leaves at 17:24, while the last ride is at 20:38. A Portogruaro to Niscemi train cost about 112.2 €. But how long is the train ride from Portogruaro to Niscemi? Your journey takes about 12 hours on average.