Speaking to a CNBC camera on Thursday, Ryanair CEO Michael O'Leary quantified the physical limits of European aviation. The budget carrier has locked in 70 percent of its summer fuel at $706 per metric ton. Competitors exposed to the spot market, he warned, will face "real failures" if prices remain elevated over the coming months.

The math driving those projected insolvencies originates thousands of miles away in the Persian Gulf. The Strait of Hormuz blockade has functionally severed the maritime artery connecting Middle Eastern crude to Asian refineries. South Korea, which controls nearly 30 percent of the global jet fuel export market, is struggling to source the raw hydrocarbon inputs needed to supply Western airports.

The International Energy Agency's Executive Director, Fatih Birol, reported on April 16 that European reserves had fallen to roughly six weeks of supply. That window is rapidly closing. The continent's refineries are currently running at high capacity, but the structural deficit cannot be bridged by domestic production alone. According to shipping data platform Kpler, the U.S. West Coast relies on South Korea for roughly a third of its 54,000 daily imported barrels, illustrating the severe global contagion of the blockade.

Airlines without extensive hedging contracts are now flying toward an absolute logistical wall. When the physical commodity disappears, highly leveraged capital structures inevitably collapse. Ryanair is insulated because it purchased certainty at a premium, leaving the rest of the sector to burn through shrinking cash reserves as the geopolitical tax on jet fuel expands. "We can guarantee people there'll be no price increases, no fuel hedging, no fuel surge levy surcharges, regardless of what happens to summer supply," O'Leary continued. The market is efficiently sorting the prepared operators from the insolvent.