An aircraft seat assembly configured in accordance with an example embodiment of the invention utilizes composite materials to achieve significant weight savings relative to conventional seat designs. The seat assembly includes a lightweight composite support structure, a lightweight composite seat base, and a seat back assembly that employs a lightweight inner frame. The seat cushion and the seat back cushion may utilize a sealed pneumatic element that self-inflates to provide increased air cushioning during flight. The seat assembly can leverage inexpensive manufacturing techniques such that the seat assembly can be economically produced for use as an economy class seat.