I follow this thread because I've always found SOU a conundrum - good transport links, affluent catchment area but struggles to attract airlines to serve routes that look like winners. We are told that MAN is a good route, Eastern operate it intermittently. Paris is a good route but Eastern operate it as a slot sitter. EZY pile in on GVA during the winter but haven't committed to anything else. The Channel Islands operate consistently as do the Scottish routes and NCL. Maybe the current runway length is more of a constraint than we think - interesting times.