More than 450 flights were delayed Monday causing chaos at Newark and Atlanta international airports following the weekend’s ground stop order over air traffic control failures. The Federal Aviation Administration (FAA) issued a warning that a second ground stop order was possible given the situation at Hartsfield-Jackson Atlanta International — the busiest airport in the US — which has seen more than 370 delays as of Monday afternoon,

An airline industry trade group says the air traffic control infrastructure needs 'tens of billions of dollars' in updates, but flying is still safe.

The Federal Aviation Administration on Monday is investigating after another outage at the Philadelphia air traffic control center responsible for handling flights at Newark Liberty International Airport.