Line the base of the air fryer basket with tin foil. Place the popcorn kernels in a single layer on top of it.
Place the air fryer basket in the air fryer and cook for 8 minutes. Let the popcorn sit in the air fryer for a further 30 seconds, to allow excess popping.
Remove the air fryer basket and place the popcorn into a mixing bowl. Toss with salt and your favorite seasonings and enjoy immediately.