Strait of Hormuz Closure Triggers Six-Week Jet Fuel Countdown and First European Flight Cancellations

Energy chokepoints have repeatedly reordered aviation: the 1956 Suez Crisis cut tanker traffic and forced airlines onto longer, pricier polar routes, while the 1973 OPEC embargo slashed capacity and birthed the wide-body fuel-efficient 747. Today’s Hormuz shutdown revives that pattern, exposing how liberalised, just-in-time fuel logistics—and decades of refinery closures in Europe—have left airlines vulnerable. The sudden tilt toward African and U.S. suppliers hints at a realignment of trade flows that could outlast the guns, much as the 1980-88 Iran-Iraq war permanently redirected Gulf crude to Asia. On a 100-year horizon, this episode is another reminder that commercial flight, still 90 % dependent on kerosene, remains tethered to volatile geopolitics; unless sustainable propulsion scales, every major conflict near an oil artery can still ground global mobility.