Orbitz Worldwide, Inc. is an Internet travel company headquartered in Chicago, Illinois. Through its primary web site Orbitz.com, Orbitz Worldwide enables travelers to research, plan and book a broad range of travel products, facilitating 1.5 million flight searches and one million hotel searches every day. Orbitz Worldwide is a publicly-traded company listed on the New York Stock Exchange following its initial public offering (IPO) in July 2007. Orbitz Worldwide’s largest investor is Travelport, one of the world’s largest networks of travel brands, content and service offerings. - Source: Wikipedia