We also had a last minute cancelation of AA morning flight from Las Vegas to JFK on May 2. All other flights on that same route such as Delta and Jet Blue flew throughout the day without delay. AA blamed it on JFK air traffic controllers saying that due to anticipated weather later in the day, JFK can choose to cancel any flight at their discretion to make sure traffic does not get backed up later in the day. Weather was perfect all day in fact tailwinds allowed flights to land ahead of schedule. So what's the real story? I'd like to hear JFK's response.
AA flights canceled to JFK