Pompei 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 Pompei and arrive at Treviglio every about 2 hours on average. If travelling with Trenitalia, you need to know the Pompei to Treviglio train schedule: the first train leaves at 06:28, while the last ride is at 10:16. A Pompei to Treviglio train cost about 101.2 €. But how long is the train ride from Pompei to Treviglio? Your journey takes about 7 hours on average.