New York flights cancelled/delayed: Severe thunderstorms are causing widespread flight cancellations and significant delays across the US Northeast. Major airports in New York, including JFK, LaGuardia, and Newark, are experiencing major disruptions. The Federal Aviation Administration has implemented traffic management measures to ensure flight safety during the storms. Hundreds of flights have been affected, impacting both domestic and international travel plans. Passengers are advised to check their flight status and airline updates before traveling.