Sustainable aviation fuels (SAF) are produced from renewable sources like vegetable oils, animal fats, and bio-wastes, reducing emissions by up to 80% vs fossil jet fuels. One of the main advantages of SAF is that it can be used without requiring major changes to existing engines and fueling infrastructure while improving efficiency and reducing petroleum dependence. Also its production creates jobs in renewable industries. SAF can be used directly or mixed with fossil fuels due to similar chemical composition. Wider SAF adoption enables more sustainable flights.