9,600 Flights canceled, 1,300 delayed due to Unknown Computer Blackout in the U.S. On Wednesday

9,600 scheduled flights at 6 a.m. on Wednesday were delayed for three hours at the most by unknown computer problems at the airports nationwide. 1,300 flights were canceled nationwide. United Airlines, Delta Air Lines, American Airlines, and Southwest Airlines all reported 40% or more flight delays or cancellations on Wednesday.

FAA officials along with other government authorities have looked into the outage to a damaged database file and couldn’t find any specific evidence of a cyberattack so far. This advisory was lifted at 9 a.m. EST.

During this time, many travelers were stranded at the airports, and President Biden briefed the nation on this air traffic disaster. “Normal air traffic operations are resuming gradually across the United States following an overnight outage to the FAA’s Notice to Air Missions (NOTAM) system that provides safety information to flight crews,” the FAA wrote in its fifth update of the morning.

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