Portogruaro to Como 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 Como S. Giovanni every about 1 hour on average. If travelling with Trenitalia, you need to know the Portogruaro to Como train schedule: the first train leaves at 06:38, while the last ride is at 16:24. A Portogruaro to Como train cost about 47.3 €. But how long is the train ride from Portogruaro to Como? Your journey takes about 5 hours on average.