London has the world’s busiest airport system by passenger count (155 million in 2015), served by six commercial airports (Heathrow, Gatwick, Stansted, Luton, City, Southend).
New York is second with 121 million passengers in 2015. The two global mega cities host the world’s busiest long-haul route: London to NYC. They also have the world’s largest and most invested real estate markets, a combined $200 billion in 2015/16.
While London accounts for eight of the 20 top cross-regional pairs assessed here, in the case of Shanghai, Paris is the best served destination (followed by Frankfurt). Dubai is now the busiest cross-continental route for travellers from Johannesburg and Mumbai.
For Tokyo and Sydney, Asian cities on the Pacific rim, Los Angeles is the number one cross-regional destination. Miami, gateway to Latin America, finds its busiest route to Sao Paulo, and from Rio, Miami.