Preheat your air fryer to 350°F (180°C).

In a large bowl, combine the garlic powder, dried oregano, dried thyme, salt, and pepper.

Add the stale bread cubes to the bowl and toss them until they are evenly coated with the seasoning mixture.

Place the seasoned bread cubes in the air fryer basket in a single layer.

Air fry for about 5-7 minutes, shaking the basket or stirring the croutons every 2-3 minutes for even cooking.

Cook until the croutons are golden brown and crispy.

Remove from the air fryer and allow them to cool completely before using or storing.