Preheat the air fryer to 380°F (193°C).
Place the chicken breasts on a cutting board and pat them dry with paper towels.
Melt the butter in a microwave-safe bowl.
Add garlic powder, salt, and pepper to the melted butter and stir until combined.
Brush the butter mixture evenly over both sides of the chicken breasts.
Arrange the chicken breasts in a single layer in the air fryer basket.
Cook for 10–15 minutes, flipping halfway through cooking.
Check the internal temperature using a meat thermometer. The thickest part should reach 165°F (74°C).
Remove the chicken from the air fryer and let it rest for 5 minutes before slicing.
Serve immediately and enjoy one of the easiest Easy Air Fryer Dinner Recipes for any night of the week.