Arese to Sondrio 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 Rho-Fiera Milano and arrive at Sondrio every 60 minutes on average. If travelling with Trenitalia, you need to know the Arese to Sondrio train schedule: the first train leaves at 06:31, while the last ride is at 19:51. A Arese to Sondrio train cost about 10.5 €. But how long is the train ride from Arese to Sondrio? Your journey takes about 3 hours on average.