Preheat your air fryer to 400°F.
Slice the chicken breast into bite-sized pieces or strips.
In a shallow bowl, lightly beat the egg white.
In another bowl, combine the cornstarch with garlic powder, onion powder, salt, and pepper.
Dip each chicken piece first in the egg white, then dredge thoroughly in the cornstarch mixture until evenly coated.
Place the coated chicken pieces in the air fryer basket in a single layer. Lightly spray with olive oil.
Air fry for about 10-12 minutes, flipping halfway through, until the chicken is cooked through and the coating is crispy.
While the chicken is cooking, prepare the orange glaze by combining the fresh orange juice and orange zest in a small saucepan. Heat gently over low heat for 2-3 minutes until slightly thickened; do not boil.
Once the chicken is crispy and cooked, toss it in the warm orange glaze until evenly coated.
Serve immediately and enjoy your flavorful, crispy air-fried orange chicken.