The thickness of the ribeye will determine how long to cook it. This air fryer ribeye steak recipe is thin ribeye, around 1/2-inch or 3/4 inches thick which we cooked for 4 minutes. To air-fry ribeyes that are 1 inch thick, start with 4 minutes per side, keeping in mind to what level of doneness you want to cook it. See the recipe card or notes above for more information.