FAVOURABLE GEOGRAPHY OF GULF HUBS
Geography and economics remain strong allies, however.
"One third of the world's population is within four hours' flying time and two thirds within eight hours," said Dubai Airports' Griffiths.
"We've seen the incredible aggregation power that a hub delivers."
But threats to the Gulf trio are brewing. Turkish Airlines could be the biggest short-term winner through its own mega-hub outside the conflict zone, said independent aviation analyst John Strickland.
Saudi Arabia is also muscling in, followed by India, with Asian carriers picking up passengers.
Advances in aircraft design - once favourable to Gulf airlines - are also beginning to work against them. Airbus (AIR.PA), opens new tab last week began assembling a second ultra-long-range A350 jet to support plans by Qantas (QAN.AX), opens new tab to fly directly from Sydney to London.