Casteggio to Melzo 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 Casteggio and arrive at Melzo every 60 minutes on average. If travelling with Trenitalia, you need to know the Casteggio to Melzo train schedule: the first train leaves at 06:18, while the last ride is at 21:25. A Casteggio to Melzo train cost about 7.3 €. But how long is the train ride from Casteggio to Melzo? Your journey takes about 2 hours on average.