Demand for air cargo globally has fallen as companies switch to cheaper, slower transport options, says the International Air Transport Association (Iata).
Cargo demand fell 4.7 per cent last month compared with October last year, having fallen 2.7 per cent and 2.4 per cent in the previous two months.
Iata chief executive Tony Tyler said air freight was among the first sectors to suffer when businesses confidence declined.
The confidence of purchasing managers in the manufacturing sector had fallen to the lowest level since 2009, Iata said.
The loss of confidence appeared to have caused shippers to switch some transport needs to slower and cheaper sea options to the detriment of air freight, it said.