Portici to Alpignano 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 Alpignano every about 2 hours on average. If travelling with Trenitalia, you need to know the Portici to Alpignano train schedule: the first train leaves at 07:00, while the last ride is at 20:30. A Portici to Alpignano train cost about 64.1 €. But how long is the train ride from Portici to Alpignano? Your journey takes about 8 hours on average.