Cut the boneless, skinless chicken thighs into bite-sized pieces. Aim for roughly 1-inch cubes to ensure they cook evenly.
In a large bowl, mix together the salt, black pepper, garlic powder, onion powder, and paprika. Add the chicken thigh pieces to the bowl and drizzle with the olive oil. Toss everything together until the chicken is well-coated in the seasoning.
Preheat your air fryer to 400°F (200°C) for about 5 minutes. Some models may not require this step, so be sure to check your manual.
Arrange the chicken pieces in a single layer in your air fryer basket, making sure they are not overcrowded. Depending on the size of your air fryer, you might need to cook in batches.
Cook the chicken at 400°F (200°C) for about 10-12 minutes. Halfway through the cooking time, pull out the basket and give it a shake or use tongs to flip the chicken pieces. This ensures even cooking and browning.
Use a meat thermometer to check the chicken's internal temperature. It should reach 165°F (74°C) to be safe for consumption. If necessary, continue cooking for an additional 2-3 minutes and check again.
Once done, carefully remove the chicken thigh bites from the air fryer. They'll be hot, so use caution! Garnish with fresh herbs if desired and serve immediately.