Start by marinating the chicken in buttermilk for at least 30 minutes.
In a bowl, mix flour, paprika, garlic powder, onion powder, salt, and pepper.
Remove chicken from the buttermilk and allow excess to drip off.
Dredge each drumstick in the flour mixture, ensuring it's fully coated.
Preheat your air fryer to 400°F (200°C).
Lightly spray the air fryer basket with cooking spray.
Place the coated chicken in the basket in a single layer.
Cook for 25 minutes, flipping halfway through for even cooking.
Check the internal temperature; it should reach 165°F (75°C).
Let the chicken rest for a few minutes before serving.