Salerno 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 Salerno, Bologna Centrale and arrive at Gaggiano every 60 minutes on average. If travelling with Trenitalia, you need to know the Salerno to Trezzano sul Naviglio train schedule: the first train leaves at 03:25, while the last ride is at 20:38. A Salerno to Trezzano sul Naviglio train cost about 17.0 €. But how long is the train ride from Salerno to Trezzano sul Naviglio? Your journey takes about 5 hours on average.