Pat chicken dry. Season both sides with 1 teaspoon garlic powder, 1 teaspoon smoked paprika, 1 teaspoon onion powder, ½ teaspoon salt, and ½ teaspoon black pepper.
In one shallow bowl, mix flour with 1 teaspoon garlic powder, 1 teaspoon smoked paprika, 1 teaspoon onion powder, ½ teaspoon salt, and ½ teaspoon black pepper. In a second bowl, mix crushed cornflakes with 1 teaspoon garlic powder, 1 teaspoon smoked paprika, and 1 teaspoon onion powder. In a third bowl, whisk eggs.
Coat each tender in flour, dip in egg, then press into cornflakes until well coated.
Preheat air fryer to 400°F. Spray basket with cooking spray. Arrange tenders in a single layer and spray tops lightly.
Air fry 5 to 6 minutes, flip, spray again, then cook 7 to 10 minutes more, until golden and cooked through.
Mix BBQ sauce, honey, remaining ½ teaspoon garlic powder, and remaining ½ teaspoon onion powder.
Toss cooked tenders in honey BBQ sauce. Serve warm.