The impact of Hurricanes Irma and Maria was evident as passenger demand growth slowed to its lowest level since February.
Passenger demand rose by 5.7% in September compared to the same month in 2016, down from a 7.2% year-on year growth rate in August.
North American airlines posted the slowest growth rate of all regions—at 3%—while Asia-Pacific carriers recorded the fastest traffic growth (8.7%).
September's growth was healthy, notwithstanding the heavy impacts of extreme weather events on the Americas
Global load factor—the measure of how much of airlines’ capacity is used—edged up 0.3 percentage points to 81.6%, which was a record for the month of September.
"September's growth in passenger demand was healthy, notwithstanding the heavy impacts of extreme weather events on the Americas," said Alexandre de Juniac, IATA's Director General and CEO.
"Global economic conditions support rising passenger demand, but with higher cost inputs, the demand stimulation from lower fares has waned, suggesting a moderating trend in traffic growth."