U.S. flights resume after FAA ground stop, but travel chaos continues

* FAA halted U.S. flights for over 4 hours on Friday * Over 6,200 delays and 3,400 cancellations reported * Outdated ATC system caused weekend travel disruptions U.S. flights resumed Saturday after the FAA halted departures nationwide for over four hours on Friday, causing over 6,200 delays and 3,400 cancellations. The ground stop was lifted at 8:15 p.m. ET Friday, with the FAA confirming systems were stable before resuming operations. Transportation Secretary Sean Duffy said college football teams could receive priority for charter flights. The Southeastern Conference moved some games to Sunday due to the disruption. Homeland Security Secretary Markwayne Mullin called the outdated air traffic control system a national security risk, ruling out cyberattack. Telecommunications routers were overloaded and failed.