Lightly brush olive oil on the air fryer basket or use air fryer parchment.
Place fish sticks in the basket without crowding them or allowing the sides to touch.
Cook for 9 minutes at 400F, check on them, and cook for an additional 2-4 minutes until they have reached your desired crispy texture.
Notes
Every air fryer and brand of fish sticks will be a little bit different, so check on yours around 9 minutes.I do not find it necessary to flip thinner fish sticks. If you're cooking fish "nuggets", flip after 7 minutes and cook an additional 2-5 minutes.