Research is underway to develop sustainable aviation fuel (SAF) that can power flights using CO2 captured from the air. These e-fuels, particularly electrofuels (e-fuels), are seen as the most promising pathway to decarbonize aviation, although they come with a high price tag due to the cost of carbon capture and electrolysis. Companies like Twelve are leading the way in producing e-fuels through low-temperature CO2 electrolysis, aiming to significantly reduce emissions compared to traditional jet fuel. Despite the potential for zero or low emissions, the aviation industry faces challenges in transitioning to SAF, including high production costs and the need for policy support. Major airlines are starting to invest in e-fuels, with the first commercial flights expected by 2030. While the technology exists, shifting towards sustainable aviation is a complex process, hindered by existing oil investments and regulatory hurdles. However, initiatives like Microsoft's partnership with Twelve and Alaska Airlines show progress in offsetting business travel emissions. With further development and policy interventions, the aviation industry could move closer to a greener future.