A Boeing 777 aircraft on Tuesday completed the first commercial transatlantic flight to be powered by biofuel.
The AeroMexico plane flew from Mexico City to the Spanish capital Madrid in 11 hours.
The pilot said that he hoped such innovations would help the environment.
“We have begun this biofuel programme so we can try to save a lot of fuel over the course of the year and contaminate the planet less,” said Captain Francisco Fernandez Sarda.
Its engine ran on 30 percent biofuel made from the plant jatropha curcas and 70 percent traditional fuel.
Tuesday’s flight comes as the result of a November 2010 accord between Spain and Mexico to collaborate on development of biofuels for use in aviation.