The emerging concept of flying taxis, particularly electrically-powered vehicles with vertical take-off and landing capabilities, is now venturing into the realm of hydrogen as a cleaner energy source. Joby Aviation, a U.S. start-up, recently achieved a significant milestone by conducting a successful test flight of a hydrogen-powered demonstrator covering a distance of 840km, with only water emissions. The aircraft utilizes a liquid hydrogen tank and a fuel cell system to power its six electric motors, showcasing the potential of hydrogen in regional flight. Joby's plans for commercial operations with this hydrogen-powered vehicle by 2025 signify a step towards decarbonising the aviation sector. While industry giants like Airbus are researching hydrogen propulsion for future aircraft models, challenges such as fuel storage limitations persist. Efforts focusing on cryo-compressed hydrogen may aid in addressing these technical complexities. Ambitious projects like Switzerland's Destinus are envisioning hydrogen-powered aircraft capable of ultra-fast flights with zero CO2 emissions, offering a glimpse of a sustainable future in aviation. The transition towards green hydrogen production is crucial to ensure the environmental benefits of using hydrogen in aviation, as the sector aims to reduce emissions and embrace cleaner technologies.