Jet Fuel Crisis Accelerates Interest in Sustainable Aviation Fuel as Summer Travel Demand Peaks

Iran's closure of the Strait of Hormuz—through which nearly 20 percent of the world's oil supply flows—has created a global jet fuel shortage that is reshaping summer travel plans and airline operations. Major carriers including American Airlines, United, and Delta have suspended routes and are facing sharply elevated fuel costs. The supply crisis has unexpectedly made sustainable aviation fuel (SAF) a more economically viable alternative; SAF typically costs two to five times more than conventional jet fuel but can reduce emissions by up to 80 percent. Made from renewable resources like used cooking oil and agricultural waste, SAF can be blended with conventional jet fuel without requiring aircraft modifications. However, the industry faces significant challenges in scaling production: bottlenecks include scarcity of raw materials, complex infrastructure requirements, and expensive production processes that have kept SAF below 1 percent of global jet fuel consumption. World Energy, the first commercial-scale SAF producer, ended production last year, though the current crisis has renewed industry focus on developing alternative fuel sources.