United becomes first airline to fly passenger aircraft using 100% sustainable aviation fuel

The engine using sustainable aviation fuel emitted around 75% less carbon dioxide than a flight using traditional jet fuel, the company says.

April 15, 2025 · 1 min · 43 words · Mr. Christopher Carter

United Airlines made history on Wednesday by operating the world’s first passenger flight using 100% sustainableaviationfuel.

“Aviation history is cleared for takeoff,” Unitedtweeted, along with a video of the takeoff.

“The SAF used on today’s flight is drop-in ready and compatible with existingaircraftfleets.”