Emirates Bubble Trouble? The Gulf’s Big Three keep growing, repeatedly quieting naysayers. Can this last forever? Share LinkedIn icon Twitter icon facebook icon Mail icon Emirates Bubble Trouble? The Gulf’s Big Three keep growing, repeatedly quieting naysayers. Can this last forever? April 2014 2 min read Seth Kaplan Subscribe Issue Overview In 2013, London Heathrow was once again the world’s busiest airport for international traffic. True, that does include some shorthaul hops like flights to Paris and Dublin. But No. 1 is No. 1. Until, that is, it’s No. 2.