Erba to Alessandria 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 Moiana and arrive at Alessandria every about 2 hours on average. If travelling with Trenitalia, you need to know the Erba to Alessandria train schedule: the first train leaves at 06:43, while the last ride is at 20:17. A Erba to Alessandria train cost about 11.5 €. But how long is the train ride from Erba to Alessandria? Your journey takes about 4 hours on average.