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 New York City Marathon (branded TCS New York City Marathon and formerly branded ING New York City Marathon for sponsorship reasons) is an annual marathon (42.195 km or 26.219 mi) that courses through the five boroughs of New York City.