In a large mixing bowl, combine the honey, garlic powder, soy sauce, and olive oil. Stir well until fully blended.
Add the chicken thigh fillets to the bowl and toss until each piece is evenly coated in the marinade.
Cover the bowl and place it in the refrigerator for at least 30 minutes. For the best flavor, marinate overnight.
Preheat your air fryer if required by the manufacturer.
Arrange the chicken thighs in a single layer in the air fryer basket. Avoid overcrowding to ensure even cooking.
Cook the Air Fryer Honey Garlic Chicken Thighs at 200°C (400°F) for 13–15 minutes, turning halfway through cooking.
Check that the chicken is fully cooked and reaches an internal temperature of 75°C (165°F).
Remove the chicken from the air fryer and brush with any remaining juices from the basket for extra flavor.
Garnish with sesame seeds and sliced spring onions before serving.
Serve immediately with your favorite side dishes.