On Friday morning, major US airlines such as Delta, United, and American Airlines faced a grounding of all flights due to a communication issue, according to the Federal Aviation Administration (FAA). This 'ground stop' impacted flights from these airlines, regardless of their destination.
As of now, the duration of the ground stop remains uncertain. The FAA has stated that an update on the situation will be provided by 5 a.m. ET.
This incident comes shortly after a recent Microsoft outage that caused Frontier Airlines to halt operations for several hours on Thursday. However, the ground stop for Frontier Airlines has since been lifted.