The place
Serre Chevalier is the long valley under the Col du Lautaret: Monêtier-les-Bains, La Salle-les-Alpes (Villeneuve), Saint-Chaffrey (Chantemerle), and Briançon at the bottom. The resort describes 250 km of linked pistes and a run down to Briançon, which it calls the highest commune in France. You can sleep in a town or in a quieter village. Those are different nights.
For 2030 the map lists freestyle skiing and snowboard here. It does not publish the start lists or the park map. Montgenèvre, a separate resort on the pass toward Italy, has the ski mountaineering and freeride as well as more freestyle and snowboard. Do not book one and assume the other is outside the door.
Turin is the logical airport. The road from Lyon is a day, not a shuttle.
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.