From all airports when you arrive to Central Train Station , take the green line metro until CADORNA stop , then the red line metro to DE ANGELI stop ,exit you will find bus 80 direction (Trivulzio - Betti) get off in Via Novara Via Cascina Bellaria stop ,cross the street go right hand after 100 is the hostel in via luigi zoja n,35 (stairs D 6th floor) enter phone STAR SAN SIRO