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Airport congestion blamed for peak season drop in air cargo volume

Disruption leaves shipments on the ground as demand, rates soar

China Eastern Airlines gets loaded with cherries at Seattle-Tacoma Airport. (Photo: Port of Seattle Authority)

Global air cargo volumes paradoxically declined in November amid intense shipping demand during the height of the preholiday peak shipping season, yet freight rates jumped higher and planes were more full. 

Blame the disconnect between a red-hot airfreight market and less cargo moved on extreme congestion at major airports, where a shortage of labor among airline service providers is slowing aircraft loading and unloading as well as freight deconsolidation of imports for pickup.

Analytics firm Clive Data Services on Monday released figures showing that air cargo volumes last month dipped 1.2% compared to October and were 3% below the pre-pandemic benchmark of November 2019. Even as capacity remained flat on a monthly basis, the average spot rate increased 8%. Rates are up 160% compared to two years ago, but on major trade lanes such as China and Vietnam to North America, rates are five to seven times higher than normal, according to companies that track rates and logistics providers.

November is traditionally the busiest month of the year in terms of tonnage and transactions. With cargo owners scrambling to book transport space this year because of ocean shipping backups and factory slowdowns in Asia, industry professionals expected airfreight demand to continue rising to make up for time lost. The amount of cargo moved by air climbed 10% from September to October. And planes are well filled because cargo capacity remains 12% below pre-pandemic levels due to the slow recovery of passenger flying, according to Clive. 


The global load factor — a measure of how full planes are — was 2 points lower than in October, a highly unusual occurrence as shipment volumes ramp at year’s end. Still, at 67%, the load factor was equivalent to what it was during the same period in 2018, a strong year for air cargo.

Clive, which tracks the airfreight market by collecting data on widebody passenger and freighter flights from many airlines, takes the weight and the volume utilization into account when measuring cargo carried because planes typically fill up before they reach the maximum payload.

Despite the demand from retailers and manufacturers to stock up in time for the holidays, less cargo moved through the system because of worsening backlogs at large gateways. The result is that airlines are leaving cargo on the ground to maintain their schedules, said Clive Managing Director Niall van de Wouw during a virtual briefing for reporters.

“In no way do we see signals of a slump. It’s just that we found a new bottleneck,” he said. 


Ground handling companies have been overwhelmed by cargo since the pandemic last year, especially with so much concentrated volume coming on giant freighters instead of in more manageable chunks spread among multiple passenger flights. Many of them terminated workers as airline customers reduced passenger flying and have had trouble attracting labor ever since for reasons such as low wages, the physical nature of the work and government relief payments to individuals. Quarantines and other restrictions have also slowed cargo terminals. 

At the same time, cargo-only flights operated by passenger airlines as a stopgap way to make up for lost passenger flights have increased workloads because more people are needed to load and unload when boxes are placed in the upper cabin.

The staff shortages have made it difficult to build the last pallets with cargo before a passenger plane or freighter has to take off to meet its deadline. Some cargo that would have gone by air is likely being diverted to long-haul truck or freight rail, where possible, contributing to the lower November figures, said van de Wouw. 

Those types of conversions are possible between parts of Asia, Russia, Turkey and Europe, for example. Logistics companies this year have offered more block train service between China and Europe as an alternative to ocean and air transport. And many logistics providers are sending chartered cargo jets they control to secondary airports to avoid the congestion that has plagued big hubs such as Chicago, Los Angeles, New York JFK, London Heathrow, Amsterdam and Shanghai.

Crowding is so bad at many airports that cargo terminals have restored to storing cargo outside in parking lots until it can be sorted for local delivery. Truck drivers often wait hours in line to pick up a load. Logistics providers are encouraging customers to book shipments as early as possible because of excess dwell times at many airports.

At the biggest U.S. airports, ground handlers are increasingly using off-airport facilities to process the wave of inbound cargo, which in turn impacts exports. Freight forwarder Flexport said many airline service providers have shortened free time for storage and have implemented earlier closeouts for exports to accommodate longer throughput times and security screening requirements. 

The situation resembles the gridlock at ports around the world that has roiled ocean shipping and created huge backlogs, with vessels sometimes waiting for weeks to access a berth.

Europe travel pinches cargo

The U.S. reopening of passenger travel with Europe in early November actually was counterproductive for cargo, according to Clive Data Services. Although airlines began to deploy more aircraft on trans-Atlantic routes, passenger bookings were so robust that baggage consumed more space in the lower hold and left less for cargo. Air cargo capacity per passenger flight from Europe to the U.S., measured in cubic meters, fell across all widebody times, especially for the Airbus A350-1000, Clive reported.


Load factors above 80% signal a seller’s market. Europe to North America market data for the last week of October versus the third week of November showed capacity down 7.3% and load factor up 4 points to 86%. 

From Europe to the U.S., load factors in late November were at 85% and even higher for major destinations such as San Francisco, Los Angeles, Chicago and New York, pushing rates up about 10%.

“The opening of the U.S. did not provide relief and is actually putting more pressure on the supply chain because capacity is being taken up by luggage,” van de Wouw said.

The COVID omicron variant could scare people into traveling less, which could open up belly space for cargo in the coming weeks, he added. But industry experts say there won’t be much incremental capacity added to the market between now and early next year in terms of additional aircraft. One reason is that Hong Kong’s strict COVID restrictions are forcing hometown carrier Cathay Pacific to cancel flights. Conditions are expected to remain tight in the westbound trade lanes from China through the Lunar New Year in early February. 

Data from Freightos, a global freight booking platform, shows Shanghai-U.S. rates climbed 15% to 20% in November, and are less than 5% below the record high set during the 2020 rush to airlift personal protective equipment around the world. Holiday-season demand and handling delays pushed up transatlantic air rates from Europe to the East Coast 10%, to $5.45 per kilogram, in the last month despite the introduction of new passenger capacity.

IATA cargo readout

Meanwhile, the International Air Transport Association’s trailing analysis of the air cargo market, showed air cargo demand increased 9.4% in October — the same rate as the prior month — and 10.4% in the all-important international sector, compared to 2019. Air cargo throughput has remained fairly constant for the past six months but close to all-time highs.

IATA uses a different methodology that measures volume in cargo-ton kilometers. With distance part of the equation, cargo can be counted twice if an aircraft makes an intermediate stop or the volume can look greater if more kilometers are logged.

The trade association said capacity remained 7.2% below pre-crisis levels, an improvement from the 12% deficit in September.

Conditions remain favorable for air cargo demand in the months ahead. The global Supplier Delivery Time Purchasing Managers Index reached an all-time low of 34.8 in October. Values below 50 indicate shippers are looking for faster transport, like air. Export orders and industrial production have slowed since May but are still growing, inventories are low and air has become more affordable compared to ocean because sea freight rates have exploded tenfold, or more, in many regions compared to 2019.

The U.S. inventory-to-sales ratio is 8.8% below 2019 levels in October, indicating companies still don’t have sufficient stocks for manufacturing or retail sales.

A European Commission survey of assured production shows manufacturers in the region have close to five months of production covered by current orders, indicating manufacturing activity in the EU will remain supportive of trade and air cargo in the near future, IATA said. 

Asia-Pacific airlines enjoyed a 7.9% increase in international air cargo volumes in October, nearly double the growth from the previous month. The improvement was partly driven by increased capacity between Europe and Asia as several key passenger routes reopened. Belly capacity between the continents was down 28.3% compared to 2019 and better than the 37.9% gap in September. 

North American carriers posted an 18.8% increase in international cargo volumes, on par with September’s performance. Demand for faster shipping times and strong U.S. retail sales underpinned the growth, IATA said. 

IATA also reported passenger demand in October was down 49.4% vs. 2019, a four-point improvement from September. More importantly for cargo, international passenger demand in October was 65.5% below October 2019, compared to a 69% decline for September. More than half of all cargo pre-pandemic was carried in the lower hold of passenger aircraft.

Click here for more FreightWaves/American Shipper stories by Eric Kulisch. 

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Eric Kulisch

Eric is the Supply Chain and Air Cargo Editor at FreightWaves. An award-winning business journalist with extensive experience covering the logistics sector, Eric spent nearly two years as the Washington, D.C., correspondent for Automotive News, where he focused on regulatory and policy issues surrounding autonomous vehicles, mobility, fuel economy and safety. He has won two regional Gold Medals and a Silver Medal from the American Society of Business Publication Editors for government and trade coverage, and news analysis. He was voted best for feature writing and commentary in the Trade/Newsletter category by the D.C. Chapter of the Society of Professional Journalists. He won Environmental Journalist of the Year from the Seahorse Freight Association in 2014 and was the group's 2013 Supply Chain Journalist of the Year. In December 2022, Eric was voted runner up for Air Cargo Journalist by the Seahorse Freight Association. As associate editor at American Shipper Magazine for more than a decade, he wrote about trade, freight transportation and supply chains. He has appeared on Marketplace, ABC News and National Public Radio to talk about logistics issues in the news. Eric is based in Vancouver, Washington. He can be reached for comments and tips at ekulisch@freightwaves.com