UAL Corporation is the former name of United Airlines Holdings, an airline holding company, incorporated in Delaware with headquarters in Chicago, Illinois. UAL held a 100 percent controlling interest in United Airlines, Inc., one of the world's largest air carriers, and is a founding member of the Star Alliance. It was announced on May 3, 2010 that UAL Corporation and Continental Airlines, Inc. would pursue a merger pending government approval. UAL Corporation would acquire Continental Airlines, Inc. and change its name to United Continental Holdings (UCH). On October 1, 2010, UCH, formerly UAL Corporation, announced completion of the merger. On Thursday June 27, 2019 United changed the name of its parent company from United Continental Holdings to United Airlines Holdings. UAL Corp. passed to its successor its major operations at Chicago-O'Hare, Denver, Los Angeles, San Francisco, and Washington-Dulles. UAL's United Airlines, Inc. held several key air rights, including one of the two American carriers authorized to serve Asia from Tokyo-Narita. UAL's United was the largest U.S. carrier to China and maintained operations throughout Asia. History UAL, Inc., was incorporated December 30, 1968 as a Delaware corporation as part of a reorganization of United Airlines, its largest subsidiary, having a storied history. UAL, Inc. was the creation of then United Airlines president George Keck, who formed the holding company to allow United to diversify. Between 1970 and 1988 UAL, Inc. acquired the Westin and Hilton hotel chains and the Hertz car rental company, as well as a regional airline, a reservations network, and several leasing and insurance companies. On April 30, 1987, UAL, Inc. changed its name to Allegis Corporation. Wall Street analysts believed that Allegis' subsidiaries were worth more individually than valued by the parent company's stock price. Reacting to this opinion just weeks after the company changed its name, a group led by United Airlines employees moved to acquire ownership. However, the group was unable to secure the necessary financing and Allegis' management subsequently divested (sold) its non-airline subsidiaries. On May 26, 1988, Allegis changed its name to UAL Corporation, with United Airlines, Inc. as its sole major subsidiary. United Airlines employees’ continued effort to buy the airline's parent company was realized in 1993. The Board of Directors of UAL in December 1993 agreed to an Employee Stock Ownership Plan (ESOP), with employees accepting salary and benefit reductions and work rule changes in exchange for stock. Employees gained an