The controller pipeline ran dry. Jet fuel doubled in five weeks. And the regulator began capping traffic at major airports because the airspace could no longer safely absorb it. Between them, those three explain this summer far better than any story about a single carrier's failings. The shortage of controllers As of June 2026, the Federal Aviation Administration (FAA) was running roughly 3,000 certified air traffic controllers short of its own staffing target, around 10,800