United Air Lines Inc., is a major airline based in the United States and one of the world's largest airlines with 86,852 employees and 356 aircraft. It is a subsidiary of United Continental Holdings, Inc. formerly, UAL Corporation, with corporate headquarters in Chicago. United's largest hub is Chicago's O'Hare International Airport. United also has hubs in Washington Dulles International Airport, Denver International Airport, San Francisco International Airport, Los Angeles International Airport, and Narita International Airport near Tokyo.
The San Francisco 49ers are a professional American football team based in San Francisco, California, playing in the West Division of the National Football Conference (NFC) in the National Football League (NFL). The team was founded in 1946 as a charter member of the All-America Football Conference (AAFC) and joined the NFL in 1950 after the two leagues merged.