Ever since 2000, the Hartsfield–Jackson Atlanta International Airport in Atlanta, United States of America, has been the world’s busiest airport in terms of the number of number of passengers. In fact the Hartsfield–Jackson Atlanta International Airport is the hub for Delta airlines- one of the most important airlines for the United States of America. It handles nearly a thousand flights a day. Delta airlines aims at providing services at low cost for both domestic and international destinations.