Flight status

AP News -   Officials assured passengers that the U.S. airspace was safe and operational after a nationwide ground stop that was initiated out of caution caused massive travel disruptions. The longest flight stoppage in 25 years lasted more than four hours and ended around 8:15 p.m. ET Friday, allowing some domestic flights to take off from U.S. airports.

Of the 41,000 flights scheduled Saturday, more than 6,400 had been canceled by Saturday night, according to FlightAware. More than 800 flights scheduled for Sunday were canceled, it said.

But officials said the air traffic control system was operational and expected airline schedules to fully recover by the end of Sunday, smoothing out ahead of the Thanksgiving travel rush. Secretary of Homeland Security Markwayne Mullin said there was no indication the failure was related to a cyberattack and no lives were at risk.