The aviation industry is focused on reducing its carbon footprint, with hydrogen emerging as a key solution. International Air Transport Association (IATA) member airlines aim to achieve net zero emissions by 2050, with hydrogen and electric technology expected to play a crucial role in this transition. The hydrogen aircraft market is projected to grow significantly by 2030, showcasing the industry's shift towards sustainable fuel sources. Small planes powered by hydrogen fuel cells have already undergone successful test flights, indicating a potential shift towards commercial use by 2025. Fuel-cell technology could lead to a substantial reduction in emissions, especially for short-haul flights. While hydrogen production currently poses cost challenges, advancements in fuel-cell systems could make hydrogen refueling more cost-effective than traditional jet fuel by 2050. This innovation could pave the way for larger hydrogen-powered aircraft in the future, contributing to a greener aviation sector and a significant decrease in greenhouse gas emissions.