Preheat your air fryer to 400°F (200°C).
Pat the chicken wings completely dry with paper towels to ensure maximum crispiness.
In a large bowl, toss the wings with avocado oil, sea salt, black pepper, garlic powder, onion powder, and smoked paprika until evenly coated.
Place the wings in the air fryer basket in a single layer, ensuring they are not crowded.
Air fry for 20-25 minutes, flipping halfway through, until the skin is golden brown and crispy.
While wings cook, whisk together the Greek yogurt, dried dill, and lemon juice in a small bowl to create the dipping sauce.
Once the wings are finished, transfer them to a clean bowl and toss with the sugar-free BBQ sauce until well glazed.
Slice the celery into sticks and serve immediately alongside the warm wings and chilled yogurt dip.