Add brown sugar, chili powder, and salt to a small bowl. Stir to combine.
Take your salmon fillet and dry. Remove any bones if necessary. Drizzle the olive oil onto salmon and brush to coat all sides with the oil.
Place the salmon on a plate, skin side down (if skin was left on). Sprinkle the brown sugar mixture over the top of the salmon.
Add salmon to the air fryer basket, skin side down. Cook at 400 degrees F for 6-8 minutes, or until cooked through.
Remove from the air fryer and enjoy.
