Prato 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 Prato Centrale and arrive at Treviglio every 30 minutes on average. If travelling with Trenitalia, you need to know the Prato to Treviglio train schedule: the first train leaves at 04:58, while the last ride is at 21:12. A Prato to Treviglio train cost about 28.75 €. But how long is the train ride from Prato to Treviglio? Your journey takes about 4 hours on average.