United Airlines has started moving its operations center employees into a new home — the Willis Tower in Chicago, formerly known as the Sears Tower.

United, which formally combined with Continental on Oct. 1 to form the world’s largest airline, is moving the first 280 employees into the skyscraper on Monday. This is the first phase of the move of more than 2,500 people who currently work at the company’s operations center in the suburb of Elk Grove Village. Get the full story »