The Federal Aviation Administration issued a ground stop at Newark Liberty International Airport on September 21, 2026, prompted by a communications outage. The halt in operations extended its impact to other regional airports including John F. Kennedy International, LaGuardia, Philadelphia International, and Teterboro airports in the New York region.
The ground stop caused flight delays at Newark Liberty International Airport and disrupted operations at the affected northeastern airports. The communications outage led to widespread delays throughout the day on September 21, 2026, though the precise number of delayed flights has not been disclosed.
