This is a paid asset, but now you can download Third Person Flying Controller for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Third Person Flying Controller v1.01
Third person flying controller is a professionally made controller system, for platformer movement and flying movement. Use this controller to allow your character to fly around areas freely, along with walk around grounded areas This package includes a third person controller, a third person camera, flying controls, and boost points. Demo- https://slugglove.itch.io/unityflyctrl Controller Features • Third Person Platformer System • Third Person Flying System • Third Person Camera Controller • Flying Gravity System • Flying Momentum Control System • Fully Animated Playable Character