Portogruaro to Treviglio 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 Treviglio every 60 minutes on average. If travelling with Trenitalia, you need to know the Portogruaro to Treviglio train schedule: the first train leaves at 07:33, while the last ride is at 18:24. A Portogruaro to Treviglio train cost about 40.8 €. But how long is the train ride from Portogruaro to Treviglio? Your journey takes about 4 hours on average.