Preheat your air fryer to 380 F for about 5 minutes.
In a medium bowl, whisk together peanut butter, soy sauce, lime juice, garlic, ginger, honey, and chili flakes.
Toss chicken cubes in the sauce until well coated.
Lightly spray the air fryer basket with cooking spray.
Arrange chicken in a single layer in the basket.
Air fry for 10 to 12 minutes, shaking the basket halfway, until chicken is cooked through and slightly charred.
Serve hot with rice, noodles, or a crisp salad on the side.