The place
Chamonix is a town, the 1924 Olympic host, and the place most people mean by Mont Blanc. It is not on the 2030 competition map. Paying a premium because “the Olympics are in the Alps” will not put a race in this valley.
The ski areas are separate: Brévent–Flégère, the Grands Montets above Argentière, Les Houches, Le Tour, and the Aiguille du Midi, which is the cable car for the Vallée Blanche. The Vallée Blanche is a glacier descent. It needs a guide and a clear day. It is not a blue run with a pretty name.
Geneva is the usual airport. The Mont Blanc tunnel continues to Courmayeur in Italy. For a week of linked pistes in one domain, Courchevel or Val d’Isère is the other kind of holiday. The comparison is there so you do not have to discover that on the transfer.
Before you book
Read the resort’s current piste map for the week you travel. A kilometre total is a brochure figure, useful for comparing domains and useless for predicting a queue. Lift passes are explained on the pass page. The Games timetable, where this resort is involved, is on the venue table.