Cut the chicken breast into small 1-inch bite-sized pieces.
In a bowl, toss the chicken with olive oil, garlic powder, onion powder, sea salt, and black pepper until evenly coated.
Place the chicken in the air fryer basket and cook at 400°F (200°C) for 8-10 minutes, shaking halfway through, until golden and cooked through.
While the chicken cooks, mash the avocado in a small bowl and whisk in the Greek yogurt, dried dill, and lemon juice until smooth and creamy.
Lay the tortillas flat and spread the avocado ranch sauce down the center of each.
Top the sauce with the cooked chicken pieces and the shredded cheddar cheese.
Fold the sides of the tortillas in and roll them up tightly to form wraps.
Place the wraps seam-side down in the air fryer and cook at 375°F (190°C) for 2-3 minutes until the exterior is crisp and the cheese is melted.