Portici to Asti 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 Portici-Ercolano and arrive at Asti every about 1 hour on average. If travelling with Trenitalia, you need to know the Portici to Asti train schedule: the first train leaves at 07:00, while the last ride is at 20:30. A Portici to Asti train cost about 60.5 €. But how long is the train ride from Portici to Asti? Your journey takes about 8 hours on average.