The Federal Aviation Administration grounded all flights nationwide Friday afternoon because of communications problems at regional air traffic control centers. The FAA notice said the ground stop was being imposed “due to extraordinary circumstances and for reasons of safety.”

All flights out of Portland International Airport are on hold and travelers should contact airlines directly for the latest flight impacts, the airport said in a travel alert posted to its website Friday afternoon.

Transportation Secretary Sean Duffy said there is a communications issue affecting the regional air traffic control centers that direct planes between airports nationwide. He said FAA technicians are investigating. This is the first nationwide ground stop since January 2023 when a key FAA computer system malfunctioned. Before that the last time had been after the Sept. 11, 2011, terrorist attacks.

News Source : https://www.opb.org/article/2026/11/13/flights-halted-at-airports-across-us-due-to-unspecified-extraordinary-circumstances-faa-says/