Dallas (WBAP/KLIF) – The latest statistics show DFW International Airport continues to be the second busiest airport in the world. The figures compiled by Airports Council International for 20-22 show Hartsfield-Jackson Atlanta International Airport is the world’s busiest with 93.6 million passengers passing through it last year. DFW International Airport is far behind with 73.36 million.. Denver International Airport came in third place, serving 69.2 million passengers during the year. O’Hare International Airport in Chicago rounded out the top four, with a 68.3 million passenger count. The top four rankings are unchanged from the previous year.