There was a SEA-MIA flight on AA that was discontinued a couple years ago at the same time they gave up their SEA-NRT flight. I don't ever remember a SEA-MIA flight on UA. I also do not remember any SEA-LHR flight on UA...when was that? UA used to partner with BA before UA bought the liquidated Pan Am's slots at LHR. Pan Am used to fly nonstop SEA-LHR (I took that flight in August, 1985 when I was 14) but I don't remember UA ever doing it. Also when was SEA-HKG on UA?