Season the Chicken:
Pat the boneless chicken thighs dry with a paper towel. In a mixing bowl, combine olive oil, garlic powder, smoked paprika, onion powder, salt, black pepper, and oregano. Toss the chicken thighs in the mixture until evenly coated.
Preheat the Air Fryer:
Preheat your air fryer to 380°F (193°C) for 3-5 minutes.
Air Fry the Chicken Thighs:
Place the chicken thighs in the air fryer basket in a single layer, leaving space between each piece for even cooking. Air fry at 380°F for 12-15 minutes, flipping halfway through, until the chicken reaches an internal temperature of 165°F (74°C).
Rest and Garnish:
Remove the chicken thighs from the air fryer and let them rest for 2-3 minutes. Garnish with fresh parsley if desired, and serve hot.