United Airlines, Inc. is a major American airline headquartered at Willis Tower in Chicago, Illinois. United operates a large domestic and international route network spanning cities large and small across the United States and all six continents. Measured by fleet size and the number of routes, it is the third largest airline in the world.
Bleacher Report AOL
Heart Aerospace CEO Anders Forslund discusses how the company plans to decarbonize air travel as United Airlines announced it will..