Quote: "Dont think anyone is claiming there are no slots available at LHR . There are, just outwith the peak zones that airlines want"
True, but there is also a 480,000 ATM cap at LHR, and the airport is currently running at 98% of that level. So the potential for growth through more flights is extremely limited. Until (unless) a new runway is provided Heathrow's growth is dependent on increases in seat factor or aircraft size.