All Flights Grounded

Update 1:05pm: Flights seem to be resuming.

As of noon Wednesday, every flight in the United States has been grounded. Please plan accordingly.

Causes seem to involve a problem with the Federal Aviation Authority’s computer systems.

The cause of the problem with a pilot-alerting system, which delayed thousands of flights in the United States, was unclear, but U.S. officials said they had so far found no evidence of a cyberattack.

https://www.reuters.com/business/aerospace-defense/us-faa-says-flight-personnel-alert-system-not-processing-updates-after-outage-2023-01-11/