A flexible display device includes an active layer, a source electrode disposed on the active layer, and connected to the active layer by a first contact hole, a drain electrode disposed on a same layer as the source electrode and spaced apart from the source electrode in a first direction, and connected to the active layer by a second contact hole, a first pixel electrode disposed on the drain electrode and including a lower surface electrically connected to the drain electrode while contacting an upper surface of the drain electrode and a via insulating layer disposed between the source electrode and the first pixel electrode, the via insulating layer covering an entirety of the source electrode. The drain electrode penetrates through the via insulating layer and is directly connected to the first pixel electrode.