TATL to ISP? The last time I checked, they don't even fly non-stop transcon from ISP. I'm sure that if they could than current airlines flying in and out of that airport (Southwest, NW, Delta and Continental) would have applied for such service years ago. I wonder if the runways are even long enough to handle a fully loaded 787s or A350. ISP has always been, at best, more of a regional airport for those wishing to travel to points in Eastern Nassau and all of Suffolk County. But if you wish to sit on a bus or in some van service on the Long Island Expressway during rush hour headed towards Manhattan or drag your luggage on the LIRR with limited (read little or none) space for your luggage, be my guest. If it can be done inexpensively, rest assured that I'll join the throng headed across the pond - and I live less than 20 minutes away from JFK