Treviglio to Trapani 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 Trapani every about 6 hours on average. If travelling with Trenitalia, you need to know the Treviglio to Trapani train schedule: the first train leaves at 18:02, while the last ride is at 19:02. A Treviglio to Trapani train cost about 76.6 €. But how long is the train ride from Treviglio to Trapani? Your journey takes about 2 hours on average.