Conceptual design of a commercial airliner powered by hybrid-hydrogen architecture. The demand for air traffic has been increasing since more people chose air travel to road travel, and as from the pandemic, the impact of human’s emissions has become an increasingly obvious and urgent issue. The use of fossil fuel combustion in aircraft at the state of the art, contributes to the escalation of global emissions, the urgent awareness of climate impact is stimulating the search for pioneering solutions for subsonic aviation attempting in decarbonize our skies. Hydrogen’s new technology allow to cut the CO2 emissions off, different solutions could be adopted to innovate the air traffic scenario.