The FAA implemented a ground stop at Newark Liberty International Airport (EWR) starting at 9:40 a.m. local time on August 27, 2026, due to severe thunderstorms. The stoppage was expected to last through at least 10:00 a.m. local time. After the ground stop lifts, average flight delays at Newark are projected to exceed one hour.
Delays and Cancellations at LaGuardia and JFK
LaGuardia Airport (LGA) also faced significant weather-related disruption with a ground delay in effect as of 9:40 a.m. local time. Incoming flights to LaGuardia experienced average delays exceeding 90 minutes. FlightAware data reported 42 cancellations at LaGuardia, representing 7% of scheduled flights, alongside 101 delays
or 18% of flights for the morning of August 27, 2026. John F. Kennedy International Airport (JFK) reported 19 cancellations and 48 delays during the same morning, despite no ground stop being implemented there.
National Airspace Impact and Airline Responses
According to FlightAware data at 9:45 a.m. EDT on August 27, the U.S. national airspace system recorded 1,522 total flight delays and 172 cancellations amid the ongoing storm system. The severe weather at New York area airports contributed to extensive disruptions. In response, multiple major airlines operating in the New York region issued flexible travel waivers for passengers flying on August 27, 2026, allowing changes or
rebookings without fees or fare differences.
Travelers at Newark face significant wait times due to the ground stop and ensuing delays, while LaGuardia arrivals have experienced over 90 minutes delay on average. Disruptions at JFK also include numerous flight cancellations and delays. The thunderstorm system has triggered cascading effects across New York’s three major airports and national airspace, complicating flight operations throughout the morning.
