Air flap apparatus for vehicles

An air flap apparatus for a vehicle includes a frame disposed behind a grille of a vehicle, the frame including an air inlet, an air flap including a first main body for opening and closing the air inlet, links disposed at both sides of the air flap and coupled to the air flap; and a loader connected to the air flap through the links. The air flap is disposed at a position where the air flap is rotated to open the air inlet when moved along the links and coupled to the loader, or at a position where the air flap is rotated to close the air inlet when moved along the links and decoupled from the loader.