John Scott Kirby (born August 13, 1967) is an American executive currently serving as CEO of United Airlines. He previously served as President of US Airways and American Airlines, as well as President of United Airlines until May 2020 when he was promoted as CEO.
Kirby was raised as the oldest of six children in Rowlett, Texas. In high school, he played baseball and football, and had aspirations of becoming a professional athlete. He received his Bachelor's degree in computer science and operations research from the United States Air Force Academy, where he trained to be an aircraft pilot, in 1989. He later earned his Master of Science degree in operations research at George Washington University.
Early in his career, Kirby worked at The Pentagon as a budget analyst for the United States Secretary of Defense for three years. He later worked for Sabre Decision Technologies (SDT), a subsidiary of AMR Corporation within the tourism and transport industries.
Kirby joined America West Airlines in 1995, initially serving as a senior director of scheduling and planning, and later as vice president of planning (1997), vice president of revenue management (1998), senior vice president of the company's computer program system (2000), and executive vice president. Kirby began serving as president of US Airways in September 2006, after the two airlines merged in 2005. He led US Airways' team for planning the merger. He also oversaw daily operations as well as marketing and sales strategies in his role as president. Kirby became president of American Airlines after the company merged with US Airways in 2013. He and American Airlines chief executive officer (CEO) Doug Parker worked closely together at America West, US Airways, and American.
Kirby became president of United Airlines in August 2016. He was announced as the successor to the CEO role in December 2019, following Oscar Munoz; his tenure started in May 2020. Kirby has been credited with expanding the airline's flight network, and restructuring hubs in Chicago, Denver, and Houston.
Kirby is married and has seven children. He has four daughters: Brittany, Madison, Alexandra and Scarlett; and three sons: Sean, James, and Logan.  He has donated money to both Republican and Democratic politicians.
United Airlines, Inc. (commonly referred to simply as "United") is an American major airline headquartered in Chicago, Illinois. United is a wholly owned subsidiary of United Continental Holdings following a $3 billion merger in 2010. The airline was previously owned, at one point in its history, by The Boeing Company, one of the world's largest aircraft manufacturers.