Toss wings with five-spice, salt, garlic powder, and oil. Let sit 10 minutes while the air fryer preheats to 400°F.
Arrange wings in a single layer and cook 20–25 minutes, flipping halfway, until crisp and cooked through.
Meanwhile, simmer orange juice, honey, soy sauce, vinegar, and ginger until slightly reduced, 4–6 minutes.
Stir in cornstarch slurry, cook until glossy and thickened, about 1 minute.
Toss cooked wings in glaze to coat or brush glaze on and return to air fryer 2 minutes to set.
Garnish with sesame seeds and scallions, then serve hot.