SOUTHWEST AIRLINES UNVEILS ILLINOIS ONE Airline Honors the State of Illinois and City of Chicago with Specialty Aircraft CHICAGO — April 14, 2008- Southwest Airlines today honored the State of Illinois with the unveiling of Illinois One, a Boeing 737 emblazoned with an artist’s rendering of the state flag. Southwest Airlines’ top leadership celebrated the high-flying tribute to the State of Illinois at an event in a Chicago Midway hangar with Mayor Richard M. Daley and local Employees. “We …