United Airlines lifted a nationwide ground stop after a technology issue caused significant delays at major airports, including Chicago O'Hare, Denver, Houston, San Francisco, and Newark. The disruption, lasting several hours, affected departures, though flights already airborne continued to their destinations. United confirmed the issue was resolved and is working to minimize residual delays. The FAA offered support, and United is covering passenger expenses for preventable delays. The Secretary of Transportation confirmed the outage was internal to United and unrelated to broader air traffic control systems.

Prepared by Christopher Adams and reviewed by editorial team.