Flight cancellations continue Sunday as United, Delta struggle to recover from outage

As airlines continue to grapple with the fallout from Friday's global IT outage, thousands of flights have been canceled or delayed. There were over 1,000 flights canceled and more than 2,300 delays as of 11 a.m. ET Sunday, according to flight-tracking website FlightAware. Delta and United Airlines have been hit the hardest with 539 and 254 cancellations so far, respectively. Endeavor Air, a wholly-owned regional subsidiary of Delta has also seen significant cancellations. According to the FAA, several U.S. carriers, including American Airlines, United Airlines, and Delta Air Lines, issued ground stops for all their flights early on Friday due to communication problems, which caused a domino effect into Sunday. The cybersecurity firm Crowdstrike blamed the global tech outage on a defect in an update for Microsoft Windows hosts. “Today was not a security or cyber incident. Our customers remain fully protected," Crowdstrike CEO George Kurtz posted Friday on X.<br/>