Sienna to Alba 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 Siena and arrive at Alba every about 2 hours on average. If travelling with Trenitalia, you need to know the Sienna to Alba train schedule: the first train leaves at 06:25, while the last ride is at 12:41. A Sienna to Alba train cost about 53.7 €. But how long is the train ride from Sienna to Alba? Your journey takes about 8 hours on average.