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 NYC Half is the New York Road Runners signature half marathon, held each March throughout New York City with over 20,000 participants, some 1,500 volunteers and thousands of spectators.