Outage Disrupts US Flights

A failure in the data-exchange network linking U.S. air traffic control centers on the evening of November 13, 2026, grounded most flights for more than four hours. The cause was not weather, but a communications disruption amid strain on routers, with parts of the system still relying on aging copper lines. The outage led to thousands of cancellations: cancellation totals exceeded 7,700 in some updates and approached 10,000, while delays affected more than 10,000 flights. More than 1.5 million passengers were affected, and disruption continued after departures resumed as aircraft and crew schedules remained out of sync. Authorities have not announced a root cause or a final financial toll. They denied that the outage was linked to a cyberattack or the SMART system, while the transportation secretary called for about $50 billion to modernize the aviation system.

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