After a five-hour break, flights resumed at American airports, but slowly and, as the authorities say, it will take several days for the situation to return to normal.
You can still see on the airport screens that many flights have been canceled and more are going to be delayed.
According to reports, the suspension of flights on Friday led to the delay of more than 8,500 flights and the cancellation of nearly 8,000 flights.
The "Flight Radar" website, which tracks flights, reported that as of Saturday nearly 10,000 flights to or from American airports had been canceled.
Transportation Secretary Sean Duffy said the grounding of flights across the United States, which caused the cancellation of thousands of flights, was caused by a problem that arose after the copper wire was upgraded to fiber optics.
Duffy said at a press conference that the government is trying to find out whether the problem is caused by the "back quality" of the company performing the update operation or by faulty equipment. See Sam Frezna's report from Reagan Airport in Washington, DC.