Treviglio to Velletri 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 Treviglio and arrive at Velletri every about 1 hour on average. If travelling with Trenitalia, you need to know the Treviglio to Velletri train schedule: the first train leaves at 09:02, while the last ride is at 21:56. A Treviglio to Velletri train cost about 67.0 €. But how long is the train ride from Treviglio to Velletri? Your journey takes about 7 hours on average.