Fondi 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 Fondi-Sperlonga and arrive at Treviglio every about 1 hour on average. If travelling with Trenitalia, you need to know the Fondi to Treviglio train schedule: the first train leaves at 04:33, while the last ride is at 22:10. A Fondi to Treviglio train cost about 61.15 €. But how long is the train ride from Fondi to Treviglio? Your journey takes about 7 hours on average.