The shocks experienced so far by the industry have ranged from the 9/11 terror strikes and shooting down of MH-17, to the past oil crises, volcanic eruptions and diseases like SARS.
Noting that the future growth of global air passenger traffic "will undoubtedly be subject to unanticipated shocks", the study by the International Air Transport Association (IATA) says "in the past, global air passenger traffic has always seemed to bounce back strongly from short-term upheavals".
The study said "part of the reason why global air traffic has proven so resilient relates to the large declines in the real cost of air travel seen over time".
"The resilience of air travel also reflects increases in living standards and disposable incomes over time. All told, it has become increasingly affordable for more and more people to fly over time," the study, authored by IATA experts David Oxley and Chaitan Jain, said.
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"In fact, global air passenger traffic is expected to more than double over the coming 20 years," it said.
It analysed the impact of four major shocks - 1979 second oil shock, 1990 Gulf War, the 9/11 attack and the Dotcom Bust and 2007 global financial crisis.
While the relative drops in passenger traffic were "deepest" following the combined 2000-2001 shock of the dotcom bust and 9/11, and the 2008 shock of the global financial crisis, but "in both cases, traffic had returned to its trend level within four years", it pointed out.