Cut the chicken breasts into 2-inch pieces and then place them in a large bowl.
In a small bowl, mix garlic powder, onion powder, smoked paprika, kosher salt, and black pepper to create your chicken kabobs spice blend.
Pour olive oil and the spice blend over the chicken pieces. Mix them all, ensuring the chicken is thoroughly coated with the oil and spices.
Cover the bowl with plastic wrap and refrigerate it for 20-30 minutes to let the flavors meld.
Skewer the marinated chicken, bell peppers, zucchini slices, pineapple chunks, and red onion onto the water-soaked skewers tightly. Next, evenly coat the skewers with barbecue sauce, which will act as your basting sauce.
Spray the air fryer basket with non-stick spray or brush with a little oil then preheat the air fryer to 400°F.
Place the skewers in the air fryer basket in a single layer, avoiding overcrowding. Air fry your chicken kebabs at 400°F for 8 minutes, then flip the skewers. Continue air frying for an additional 6-8 minutes until the chicken is golden brown and reaches an internal temperature of 165°F.
Sprinkle freshly chopped parsley, cilantro, lemon juice, or lime juice over the chicken skewers for a burst of fresh flavor.
Serve these easy skewers as the main course, on pita bread, a Greek salad, over rice, with BBQ sauce, or alongside your favorite vegetables or side dish for a delicious and satisfying meal!