According to Fox News, the Washington-New York-Boston corridor shows the most flight paths in the world, as of 2015. Through geographical systems technology, graphics of flight paths can be traced for routes of regional or major airlines.
While the Washington-New York-Boston corridor reveals the most flight paths, the Hartsfield-Jackson International Airport in Atlanta is the busiest international passenger facility, according to Fox News.
Fox News stated that Michael Markieta, a consultant for Arup, a worldwide engineering and design firm, worked for a year tracing as many as 58,000 flight routes. The flight graphics innovator used geographical technology data to produce the graphics for the flight paths.
Fox News adds that the consultant discovered, through his graphic renderings, that Sao Paulo, Cairo, Sydney and Beijing are listed next in line after the Hartsfield-Jackson International Airport as being the busiest airports on each of the world's continents.