Preheat your air fryer to 400°F (200°C) to ensure a high-heat environment for searing.
Pat the chicken thighs completely dry with a paper towel to remove excess moisture for a crispier result.
In a large mixing bowl, combine the avocado oil, garlic powder, smoked paprika, onion powder, sea salt, and black pepper.
Add the chicken thighs to the bowl and toss until every piece is thoroughly coated in the seasoned oil.
In the same bowl, toss the broccoli florets and sliced red bell peppers to lightly coat them with the remaining spice mixture.
Place the chicken thighs in the air fryer basket in a single layer, ensuring they are not overlapping.
Air-fry the chicken for 10 minutes, then flip the pieces and add the vegetables to the basket around the chicken.
Continue cooking for another 8 to 10 minutes until the chicken reaches an internal temperature of 165°F and the vegetables are tender with charred edges.
Let the chicken rest for 3 minutes before serving to allow the juices to redistribute.