* CTK: cargo tonne-kilometres - Data source: IATA.
Global demand for air cargo, expressed in cargo tonne-kilometres, saw a year-on-year growth of 6.0% in May 2026, building on the positive trajectory of April (+4%). On international routes alone, the increase even reached 6.5%.
The conflict in the Persian Gulf continues to penalise Middle Eastern companies, which showed a further decline of 8.9% year-on-year, although much less than in March (-54.2%) and April (-18.2%). The growth in May primarily benefited North American and Asian airlines,"which together generated more than 1.2 billion additional CTKs", notes the International Air Transport Association (IATA). European airlines also made a respectable contribution to traffic growth. As for African companies, they hold the record for percentage growth, but on a significantly smaller basis in terms of volume.
Another notable event in May was that capacity returned to growth after two months of decline attributable to the Middle East conflict. Overall, supply increased by 1.9%, and by 2.8% on international routes, notably thanks to a significant increase in capacity from Asian and North American companies.
Capacity growth is lower than traffic growth, which allowed for an improvement in the load factor, which stood at 46.3% in May (52.4% on international routes).
Despite disruptions related to the Middle East conflict, the air cargo market remained in year-on-year growth at the end of May, with a 4.1% increase in volumes (+4.4% internationally).
* CTK: cargo tonne-kilometres - Data source: IATA.
Disruptions in the Middle East continue to have an inflationary effect on air cargo rates. Average unit revenue increased by 0.3% compared to the previous month and by 37.9% year-on-year, reaching $3.25/kg.
Source: Upply
This development reflects, firstly in part, tensions over fuel supply. Certainly, year-on-year, the price of kerosene has decreased by 16.3%, but it remains 93.5% above 2025 levels and above all, the supply of kerosene has remained limited, due to production disruptions in refineries.
But above all, demand for air transport has increased at a much greater rate than supply, which has put airlines in a favourable position to negotiate higher fares.
WorldACD data for June shows that cargo rates remain at a high level, despite an increase in capacity. Even when supply growth exceeded demand growth, the spot market held up, revealing a certain nervousness in the market. "For rates to drop back significantly towards pre-war levels will presumably require the current truce between the US and Iran to be maintained sufficiently to enable some genuine longer-lasting stability to return to both air cargo and airline passenger markets", says WorldACD.
The outlook for the air cargo industry in 2026 is proving better than expected. The fundamentals remain quite solid. The global manufacturing PMI reached 53.5 in May 2026, registering one of the highest levels in recent years even though the increase is modest month-on-month (+0.1 point). The evolution of the index of new export orders has put a damper on the optimism though, since it remained below the expansion threshold for the second consecutive month, at 49.6 in May. However, despite this overall context, air cargo is holding its own, driven in particular by the dynamism of demand from Asia and by specific sectors experiencing strong growth such as e-commerce.
IATA has also significantly revised its financial forecasts for airline cargo activity in 2026 upwards. In its June projections, it forecasted cargo revenue of $162 billion, up 7.3% compared to 2025, whereas it only predicted 1.9% growth last December.
This growth is directly linked to the rise in prices: while it anticipated a decline of 0.5% in the average unit revenue, IATA is now forecasting an increase of 6.5%, to 56.8 USD cts per tonne-kilometre transported.
Traffic growth, however, is expected to remain moderate. IATA announced a year-on-year increase of 0.2%, with a total of 71.7 million tonnes. Demand for air cargo, expressed in tonne-kilometres transported, is expected to grow by 0.7%, to 285.1 billion. This figure is significantly lower than the 2.6% growth announced in December.