The world's best-connected airports for 2018

Atlanta might have the busiest airport and Asia might have the most in-demand flight routes, but when it comes to the world's best-connected megahubs, London's Heathrow is king. On 2018's busiest day for global aviation, there were 66,000 possible international connections between flights arriving and departing at Heathrow within a six-hour window, a new report by UK-based air travel intelligence company OAG reveals. OAG's Megahubs International Index 2018 pits the world's biggest and busiest airports against each other to discover which lead the way as both regional and global connecting points by comparing the number of scheduled connections to and from international flights with the number of destinations served from each airport. In the US, Chicago O'Hare International Airport has moved up the rankings to second place, while third and fourth place go to European airports Frankfurt and Amsterdam. Singapore Changi Airport -- voted best in the world six years in a row -- ranks highest in Asia (and eighth overall), but another Asian airport, Beijing, is the largest in the world in terms of scheduled airline capacity, or number of seats on flights. However, a comparative lack of international connections means that Beijing ranks just 32nd overall. Toronto Airport is the second best-connected airport in North America, and ranks fifth overall.<br/>Story has more details on airports.<br/>