Preheat the air fryer to 400°F (200°C) for about 5 minutes.
In a mixing bowl, combine olive oil, garlic powder, onion powder, smoked paprika, salt, black pepper, and dried oregano. Mix well to form a marinade.
Pat the chicken breasts dry with paper towels to remove excess moisture.
Coat each chicken breast evenly with the marinade, ensuring all sides are covered.
Place the marinated chicken breasts in a single layer in the air fryer basket. Avoid overcrowding to allow for even cooking.
Cook the chicken at 400°F (200°C) for 20-25 minutes. Flip the chicken halfway through cooking for even crispiness.
Check the internal temperature with a meat thermometer. The chicken should reach 165°F (75°C) for safe consumption.
Once cooked, remove the chicken from the air fryer and let it rest for 5 minutes before slicing.
Serve the air fryer chicken with your choice of vegetables, rice, or salad for a complete meal.