after another pointless rant on A343 F travel, back to the OT: have you checked the arrivals of any long-haul flights at JFK lately? there is a half hour window for ALL of them, simply because NY airspace is so crowded. variable wind conditions also influence flight time. In summer 888 and 830 were both 30 to 40 minutes early every day. I last arrived on 830 at close to 1 pm, over an hour early.