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This summary covers The Economist’s May 9th, 2026 Business article on airlines and jet-fuel shortages, published under the headline Fuming and listed in the contents as Airlines in crisis.

The article argues that the aviation industry is being forced to confront a supply shock that is both global and oddly specific. The near closure of the Strait of Hormuz has not only trapped crude oil in the Gulf; it has also constrained the movement of jet fuel and the crude used to make it. For airlines, that turns a geopolitical crisis into a direct operating problem. Aircraft may cross continents in hours, but the fuel that keeps them flying still depends on slow, fragile shipping routes and refinery networks.

The first victim in the article is Spirit Airlines. The American low-cost carrier was already in bankruptcy protection and struggling with debt, competition and a difficult business model. The jump in fuel costs after the Iran conflict pushed it over the edge, leading it to cease operations on May 2nd. Spirit is presented less as an isolated failure than as an early warning. Carriers with weak finances, thin margins or heavy exposure to expensive fuel are now more vulnerable than their summer booking calendars suggest.

Other airlines have started to respond in the usual ways: raising ticket prices, adding fuel surcharges and cutting flights that no longer make economic sense. Lufthansa, Air France-KLM, United, Delta, Vietjet and AirAsia are among those trimming service. Cirium, an aviation-data firm, says the number of flights scheduled for May fell by 13,000 in the second half of April. Yet the industry is still officially planning for a busier summer than last year. That mismatch is the article’s central puzzle.

Why The Shortage Is Hard To See

The reason airlines have not cut more deeply is partly commercial. They need to keep selling tickets to generate cash, so public schedules tend to remain optimistic until the pressure becomes impossible to ignore. Fuel shortages also do not hit every region, airport or carrier at once. A global headline number can conceal local bottlenecks, refinery dependencies and uneven stockpiles.

The article lays out the scale of the problem. Global jet-fuel demand averaged about 7.8m barrels a day in 2025. Around 2m barrels a day were traded internationally, and 360,000 of those moved through the Strait of Hormuz. The bigger issue is that Asian refineries need Gulf crude to make jet fuel. If they cannot get enough feedstock, Societe Generale estimates that May could see an additional shortfall of 800,000 barrels a day. Together, the lost traded fuel and lost refining output could equal about 15% of global demand.

That does not mean every airline suddenly loses 15% of its fuel. Energy systems are adaptive. Refiners can shift output, airlines can pay more, cargoes can be rerouted and governments can release reserves. But the adjustment is messy and expensive. The article’s point is that aviation is exposed not only to the price of oil but also to the location of refineries, the direction of tanker flows and the availability of buffer stocks.

America looks relatively protected because it produces and refines large volumes of oil. Even there, however, the West Coast is exposed. It is not connected to the dense jet-fuel pipeline network east of the Rocky Mountains, and it imports nearly a fifth of its supply. Most of those imports come from South Korea, which itself has been hit by the loss of Gulf crude. A national surplus does not automatically solve a regional shortage.

Europe And Asia Face A Patchier Risk

Europe and Asia are more exposed, but not uniformly. Europe burns about 1.6m barrels a day of jet fuel and imports roughly a third of what it needs. Three-quarters of those imports have historically come from the Gulf. Britain is especially vulnerable because it imports around 65% of its jet-fuel requirement and lacks a strategic reserve. Goldman Sachs puts Britain’s commercial stock at just 29 days. Portugal is down to 23 days, near the level at which the International Energy Agency thinks rationing begins to be required.

Other European countries are better placed. Greece and the Netherlands are net exporters, which gives them more room to maneuver. Asia is similarly uneven. China is a large exporter, but trade restrictions may limit how much relief it can provide. Australia and Vietnam could face shortages unless they pay up for fuel from elsewhere. Indian refiners might help Asian carriers, but their use of sanctioned Russian crude makes them unsuitable for some European customers, and India’s government may limit exports.

High prices are already changing trade flows. American refiners have increased jet-fuel production and seaborne exports. Much of the new flow is going to Europe, where airlines are willing to pay more. That leaves Asia with less access to American supply than before. The crisis is therefore not simply reducing supply; it is reallocating fuel toward the buyers and regions able to pay the most.

The Summer Squeeze

The article’s final warning is about timing. The busy summer travel season is approaching just as the fuel system is strained. If the Strait of Hormuz reopens, the pressure would ease, but not instantly. Shipping patterns would need to normalize, damaged infrastructure would need repair and inventories would need rebuilding. If the strait remains closed, prices may have to rise high enough to force passengers to fly less.

That is the uncomfortable mechanism at work. Airlines can postpone cancellations, reroute fuel and reassure customers for a while. But if physical supply remains short, the market eventually rations demand through higher prices, thinner schedules and weaker carriers failing. Spirit may have been first because it was already fragile. The article implies that it may not be last.

The broader takeaway is that aviation’s speed can obscure its dependence on slow infrastructure. A plane can move passengers across the world in a day, but its economics are tied to tankers, refineries, pipelines and strategic stockpiles. When a narrow waterway in the Gulf closes, the effect is not abstract. It shows up as surcharges, canceled flights, thinner margins and possibly spoiled holidays. The airline industry may sell mobility, but in a fuel shock it is reminded that mobility begins with supply chains.