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IEA Warns Six-Week Jet Fuel Cushion as Airlines Start Cutting Routes

The International Energy Agency warned Europe has about six weeks of jet fuel left, as airlines begin cutting routes due to rising fuel costs.

IEA Director Fatih Birol told the AP that Europe may have "maybe six weeks" of jet fuel left if Strait of Hormuz disruptions persist. Argus Media says the strait supplies about 40% of Europe's jet fuel imports and none has transited since the war began. The IEA report finds some European countries are down to under 20 days of coverage and warns coverage below 23 days could trigger airport shortages and cancellations.

Jet fuel is the largest operating cost for carriers, running about 25-30% of expenses, and prices have roughly doubled since the Iran war began. Airlines have already raised baggage and other fees, embedded higher fuel costs into fares, and started cutting flights and routes this summer. Delta is trimming four U.S. routes, Air Canada is suspending New York services from Toronto and Montreal for June through October, and European carriers like KLM and Lufthansa are adjusting schedules and grounding planes.

Coverage has shifted as diplomatic signals briefly eased fears about the strait. Iran declared the Strait of Hormuz "completely open" during a 10-day Israel-Lebanon ceasefire, and U.S. leaders echoed the message while noting the opening is time-limited. That development eased oil prices but left unresolved whether the strait will stay open, so IEA warnings and airline cuts remain relevant if disruptions resume. Industry groups and analysts on social media warned recovery could take months, with the International Air Transport Association saying normalization will be slow, and some commentators warned developing countries could suffer most from fuel shortfalls and flight cancellations.

Global Energy and Oil Markets Iran War and Strait of Hormuz Iran War and Global Energy Airlines and Travel Costs Global Energy Markets
This story is compiled from 6 sources using AI-assisted curation and analysis. Original reporting is attributed below. Learn about our methodology.

📌 Key Facts

  • IEA Director Fatih Birol warned in an exclusive interview that Europe has "maybe six weeks" of jet fuel left if Strait of Hormuz disruptions continue, calling the situation the global economy's "largest energy crisis."
  • Iran declared the Strait of Hormuz "completely open" to commercial vessels for the 10-day Israel-Lebanon ceasefire (through at least April 26) and U.S. leaders said it was "fully open," but the opening is time-limited and its durability after the ceasefire is uncertain.
  • Industry sources say no jet fuel has transited the Strait of Hormuz since the war began; the strait accounts for roughly 40% of Europe’s jet fuel imports, making Europe particularly vulnerable to continued disruptions.
  • The IEA report notes some European countries have under 20 days of jet fuel coverage and warns that falling below about 23 days of coverage could lead to physical shortages at airports and flight cancellations.
  • Jet fuel costs have roughly doubled since the Iran war began (Feb. 28), and fuel represents roughly 25%–30% of airline operating costs, prompting airlines to pass on costs to passengers and adjust operations.
  • Airlines are already responding by raising baggage and ancillary fees, embedding higher fuel costs into fares and cutting flights: examples include Delta cutting four summer routes (JFK–Memphis, JFK–St. Louis, Detroit–Reykjavik, Boston–Nassau), Air Canada suspending Toronto/Montreal–JFK (June 1–Oct. 25), KLM trimming routes, and Lufthansa scaling back regional operations and grounding planes over higher kerosene prices.
  • Industry analyst Henry Harteveldt warned he has never seen disruptions "on such a large scale," saying U.S. travelers could face diversions or added stops on transatlantic flights if jet fuel shortages persist.
  • The higher fuel costs are rippling through the economy: oil prices briefly fell on hopes of a deal to end the war but Birol warned shocks could worsen if Hormuz doesn't reopen durably; U.S. retail gasoline rose about 21% month-over-month, USPS and UPS have raised shipping rates or fuel surcharges, food banks report rising demand, and a U.N. report says countries (e.g., Thailand, the Philippines, India) are curbing or redirecting fuel use in ways that affect global production and exports.

📰 Source Timeline (6)

Follow how coverage of this story developed over time

April 17, 2026
9:36 PM
Airlines cut routes in response to rising jet fuel costs amid Iran war
https://www.facebook.com/CBSMoneyWatch/
New information:
  • Delta Air Lines is cutting four specific routes this summer (JFK-Memphis, JFK-St. Louis, Detroit-Reykjavik, Boston-Nassau) across defined date ranges, citing operating costs among factors.
  • Air Canada is suspending Toronto and Montreal routes to New York JFK from June 1 through October 25 explicitly because jet fuel prices have doubled since the start of the Iran conflict.
  • KLM Royal Dutch Airlines is adjusting its schedule and dropping routes it calls no longer financially viable, and Lufthansa is shutting down a regional airline and grounding planes over higher kerosene prices.
  • Industry analyst Henry Harteveldt told CBS he has never seen disruptions "on such a large scale" and warned U.S. travelers could face diversions or added stops on Europe flights due to fuel shortages.
  • The piece confirms that jet fuel prices have doubled since the Iran war began on February 28 and reiterates that fuel is about 25%-30% of airline operating costs.
5:41 PM
Inflation is likely here to stay, even if gas prices fall
MS NOW by Adam Hudacek
New information:
  • Iran's foreign minister said the Strait of Hormuz is 'completely open' during a 10-day Israel-Lebanon ceasefire through at least April 26.
  • U.S. retail gasoline prices are running roughly 21% higher than a month ago, according to Bureau of Labor Statistics data.
  • Moody's Analytics chief economist Mark Zandi describes three 'waves' of this oil shock: direct fuel prices, pass-through into other goods and services, and potential wage pressures that could trigger a recession.
  • U.S. Postal Service plans an 8% shipping price increase and UPS has imposed a fuel surcharge, both attributed to higher energy costs.
  • Food banks such as Food for Others in Fairfax, Virginia report rising demand as higher food and transport costs hit low-income families.
  • A U.N. humanitarian office report notes Thailand and the Philippines are curbing fuel use and India is diverting natural gas from industry to households, affecting production of goods exported to the U.S.
2:36 PM
The Iran war has caused the cost of jet fuel to surge. Here's how travelers are impacted.
https://www.facebook.com/CBSMornings/
New information:
  • CBS segment reiterates that since the Iran war began, jet fuel costs have doubled due to shortages.
  • It reports that airlines around the world are canceling flights and increasing fares and fees in response to the spike.
  • It echoes IEA Director Fatih Birol's warning that Europe has maybe six weeks of jet fuel left if Strait of Hormuz disruptions continue, but adds no new figures or qualifiers beyond what is already captured.
1:35 PM
Trump and Iran's foreign minister declare Strait of Hormuz is fully open
PBS News by Melanie Lidman, Associated Press
New information:
  • Confirms that Iran has now declared the Strait of Hormuz "completely open" to commercial vessels in line with the Lebanon ceasefire.
  • Notes Trump amplified the message, saying the strait "is fully open and ready for full passage."
  • Clarifies that this opening is time-limited to the remaining period of the 10-day ceasefire, leaving open what happens afterward.
  • Reports that oil prices have fallen on hopes of a broader deal to end the war, while Fatih Birol warns energy shocks could worsen if Hormuz fails to reopen fully and durably.
12:01 AM
What lagging jet fuel supplies could mean for airlines and travelers
PBS News by Wyatte Grantham-Philips, Associated Press
New information:
  • Exclusive AP interview quotes IEA Director Fatih Birol saying Europe has 'maybe six weeks' of jet fuel left and calling this the global economy's 'largest energy crisis.'
  • Argus Media’s Amaar Khan specifies that the Strait of Hormuz accounts for about 40% of Europe’s jet fuel imports and that no jet fuel has transited the strait since the war began.
  • The article quantifies that jet fuel is airlines’ biggest cost at about 30% of expenses and says prices have roughly doubled since the Iran war started.
  • It reports that some airlines have already raised baggage and other ancillary fees, embedded higher fuel costs into fares, and begun cutting flights in response.
  • The IEA report cited notes some European countries are down to under 20 days of jet fuel coverage, and warns that dropping below 23 days could trigger physical shortages at some airports and flight cancellations.
April 16, 2026