United Airlines faced significant disruptions as flights across the U.S. and Canada were briefly grounded due to a connectivity issue, prompting the Federal Aviation Administration (FAA) to issue a nationwide ground stop. The grounding lasted approximately 30 minutes, affecting travelers in various locations, including major airports in Newark, San Francisco, and Los Angeles. In addition to the ground stop, United Airlines canceled multiple flights impacting destinations in Asia, Brazil, and Europe, stranding passengers worldwide. Following the technical glitch, the FAA lifted the ground stop, allowing operations to resume. However, the airline continues to experience cancellations and delays as it works to resolve ongoing operational challenges.