United Makes Historic Flight With 100% Sustainable Fuel

United Airlines made history last week on a flight from Chicago to Washington, D.C. when it became the first commercial carrier with a passenger flight to use 100 percent undiluted sustainable aviation fuel.

The flight took off Wednesday with more than 100 passengers from Chicago O’Hare to Reagan National Airport on a 737 MAX 8. The flight used 500 gallons of sustainable aviation fuel (SAF) in one engine and the same amount of conventional jet fuel in the other eng