Inside the $200 million fund that’s working to make jet fuel more sustainable

The United Airlines Ventures Sustainable Flight Fund is a winner in Fast Company’s 2024 World Changing Ideas Awards.

Right now, sustainable aviation fuel, or alternative jet fuel made from nonfossil sources, powers less than 0.1% of planes in the U.S. That’s both because there’s so little of it available and because it’s expensive. But a fund launched by United Airlines is working to quickly scale up the tiny SAF industry.