Cut chicken into bite-sized pieces and pat dry with paper towels.
Combine flour, garlic powder, paprika, salt, and pepper in a bowl.
Coat chicken pieces evenly in seasoned flour.
Preheat air fryer to 380°F or oven to 400°F.
Cook chicken for 12–14 minutes (air fryer) or 15–18 minutes (oven) until golden.
Melt butter and mix with hot sauce over low heat.
Toss cooked chicken in buffalo sauce until fully coated.
Serve immediately with blue cheese, ranch, celery, and carrot sticks.