No. The operator of Heathrow, BAA, claims that Heathrow is the "world's busiest international airport", but Heathrow is only the world's third-busiest airport by total passenger traffic, after...
William B. Hartsfield Atlanta International - code ATL. Although Heathrow is busier with International destinations, the shear volume of domestic Traffic makes Atlanta the busiest. Chicago O'Hare is...
Atlanta Hartsfield Jackson International Airport is then world's busiest airport with some 89 million passengers passing through its terminals in 2007. It's in Georgia.
Its nearest competitor is...