This research aims to determine the introduction of advanced thermoelectric technology in the field of aviation energy in the context of increasing sustainability. It considers environmental problems of the aircraft and the potential contribution of thermoelectric systems. Statement of the problem results in research question, which has found the answer by investigating passenger prioritization and determining the possible benefits and limitations of thermoelectric use. The results demonstrate the perspective of possible greener aviation devotion the discussed concerns. Nevertheless, the technical and regulatory issues are to be resolved to implement the proposed solutions. Thus, the thesis offers a perspective of using the waste thermal energy for making aviation closer to sustainability.