No timeline to lift nationwide U.S. ground stop as flight cancellations mount

Homeland Security Secretary Markwayne Mullin said Friday there was no timeline for resolving the issue behind the nationwide ground stop as flight cancellations continued to mount.

Transportation Secretary Sean Duffy said a communications problem affecting air traffic control prompted the ground stop. It was the second nationwide ground stop since the September 11, 2001, attacks, following one in January 2023.