Grosseto 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 Grosseto and arrive at Treviglio every 60 minutes on average. If travelling with Trenitalia, you need to know the Grosseto to Treviglio train schedule: the first train leaves at 01:53, while the last ride is at 16:25. A Grosseto to Treviglio train cost about 34.1 €. But how long is the train ride from Grosseto to Treviglio? Your journey takes about 7 hours on average.