Late season skiing lives and dies on altitude, so let height be your first filter. The only true snow guarantee in Italy is a glacier, which is why Cervinia and its Plateau Rosa sit at the top, skiing reliably into late spring when valley resorts have long closed. After that, look for high valleys and cold, north facing slopes like Livigno and Santa Caterina, which hold dry snow far better than sunny lower terrain.
Understand how spring snow behaves and plan your days around it. South facing pistes turn to lovely corn snow in the morning and slush by afternoon, so start early and chase the shade as the day warms. The high Dolomites resorts like Selva and Madonna di Campiglio rely on world class snowmaking rather than pure altitude, which keeps groomed runs excellent but means the magic happens on the pistes, not off them, late in the year.
Match the base to what else you want from a spring trip. Cervinia is the snow safe choice, Livigno and Sestriere add value and energy, Bormio offers thermal baths for tired legs, and Cortina brings glamour and scenery. For the wider picture, see our Europe late season ranking and the broader late season in the Alps, consider an early trip instead via apres ski in Italy, and plan from the Italy destination guide.