Gragnano 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 Salerno and arrive at Milano Rogoredo, Milano Centrale every about 2 hours on average. If travelling with Trenitalia, you need to know the Gragnano to Treviglio train schedule: the first train leaves at 20:38, while the last ride is at 23:33. A Gragnano to Treviglio train cost about 68.7 €. But how long is the train ride from Gragnano to Treviglio? Your journey takes about 11 hours on average. Trenitalia offers 2 direct trains between these two cities.