Categories Selected Articles United Airlines resumes operations after brief nationwide mainline ground stop Post author By Mike Nova Post date July 24, 2025 Listen to this article United Airlines issued a nationwide ground stop for all of its mainline flights late Thursday after an emergency alarm at its Chicago operations center. ← Mets’ Edwin Diaz open to playing in World Baseball Classic again despite previous freak injury → Fortescue axes two green hydrogen projects after Trump administration’s shift on renewables