Velletri to Trezzano sul Naviglio 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 Velletri, Roma Tiburtina and arrive at Gaggiano, Milano Centrale every 60 minutes on average. If travelling with Trenitalia, you need to know the Velletri to Trezzano sul Naviglio train schedule: the first train leaves at 06:31, while the last ride is at 22:15. A Velletri to Trezzano sul Naviglio train cost about 29.90 €. But how long is the train ride from Velletri to Trezzano sul Naviglio? Your journey takes about 7 hours on average. Trenitalia offers 2 direct trains between these two cities. When booking your train ticket a few weeks in advance though, you can find low cost trains from Velletri to Trezzano sul Naviglio with fares starting from 29.90€, saving up to 40%.