The Compagnie du Mont Blanc promises a minimum of 2 buses available for MBU pass holders of 2 days or more. You must reserve your place at by 5:00p.m. the day before calling (+33(0)4 50 53 0115) and you should be ready to leave at least 15 minutes prior to the departure time. The bus departs from the Chamonix train station, stops at La Palud, and continues on to the Place du Mont-Blanc in Courmayeur, where skiers can get another shuttle to the various lift areas. If you do decide to forego the bus and go by car, the Mont Blanc Unlimited pass holders can by reduced fare tunnel tickets from the Compagnie du Mont Blanc. The Chamonix-Courmayeur bus schedule for skiers from Chamonix: Leaves Chamonix at 08:45 and 09:45. Returns from Courmayeur at 14:00, 16:00, and 17:00 The Chamonix-Courmayeur bus schedule for skiers from Courmayeur: Leaves Courmayeur at 08:45 and 09:45. Returns from Chamonix at 15:00, 16:00, and 17:00