While the air fryer is preheating, coat the chicken in olive oil on both sides. Then season it with the salt, garlic powder, onion powder, and a dash of black pepper.
Place it in the preheated air fryer, set the air fryer to 350, and cook for 15 minutes, flipping it half way through cooking or until he thickest part of the chicken reaches 160 degrees (a 9 ounce chicken breast will take approximately 15 minutes and a 6 ounce chicken breast will take approximately 12 minutes).
Remove the chicken from the air fryer, tent with foil, and let it rest for 5 minutes. During this time there will be some carry over cooking and the chicken will reach 165 degrees. (Read more about carry over cooking here.)
Please see notes in the post about different cooking times for different sized chicken breats and information on cooking more than one chicken breast at a time.
Notes
Please note that the nutritional information is based on a 9 ounce chicken breast.