Glenn F Tilton (born April 1948 in Washington, DC) is the Chairman, President, and CEO of UAL Corporation and its subsidiaries, most notably United Air Lines, Inc. He has held this role since September 2002, 3 months before UAL Corp. filed for Chapter 11 bankruptcy protection. He came to UAL from ChevronTexaco.

Tilton is also Chairman of the Board of Directors of the Air Transport Association, the industry trade organization representing the leading U.S. airlines, which, along with their affiliates, transport more than 90 percent of all U.S. airline passenger and cargo traffic.

Tilton grew up in Latin America, and attended high school in Brazil, where his father worked for the United States' Central Intelligence Agency. After earning a bachelors degree in International Relations from the University of South Carolina, Tilton originally was going to follow his father's footsteps and join the C.I.A. Instead, Tilton began a career in the private sector working for Texaco in 1970, servicing gas stations throughout Washington, D.C.