Travelers checking flights across the United States are facing uncertainty after a major air traffic control communications disruption prompted the Federal Aviation Administration to order a nationwide ground stop on Friday, November 13.

The order halted departures, while aircraft already airborne were permitted to land. International flights were being handled on a case-by-case basis, according to Reuters.

Transportation Secretary Sean Duffy said communication problems were affecting air traffic control centers, and FAA technicians were investigating. The reports reviewed for this article did not establish a confirmed time for a full return to normal operations.

Watch the situation on Flightradar24.

To follow aircraft movements, open the live Flightradar24 map and navigate to the United States.

For a clearer view of airport disruption, visit the Flightradar24 airport disruption tracker. The page shows cancellations, delayed flights, and average delays, along with a disruption index ranging from 0 to 5. Higher values indicate greater disruption. Select North America and compare arrivals and departures at the airports relevant to your journey.

View airport delays and cancellations live on Flightradar24 →

Aircraft appearing on the map should not, by themselves, be taken as confirmation that all restrictions have ended or that your flight will depart as scheduled.

Before leaving for the airport, check your airline’s website or app for your individual flight status. For official information about airspace restrictions and airport conditions, consult the FAA’s National Airspace System status page. The FAA directs passengers to their airline for flight-specific delay information.