What does this actually mean? All flights around JFK are cancelled until further notice? Can someone translate? Does this affect EWR and LGA?
Any flights that are to depart for JFK but are still on the ground must stay put until the expiration or cancellation of the stop. No, it doesn’t impact other airports.
Any disruption at one major airport affects pretty much all the airports, if it lasts long enough. Those grounded planes will soon be expected elsewhere.