Preheat the air frier to 380 °F (if need). Every airfryer is different so you might not need to preheat the appliance. The take half of the sweet potato sticks and place them in the airfryer basket. “Fry” for about 12 minutes, checking on the sweet potato fries towards the end of “frying”. (Depending on your model, you might need to take the fries out of the airfryer sooner (or keep them in the airfryer longer).