So what is going on between DL and VS? VS isn't a Skyteam member but they seem to be more than your average codeshare partner. Why are these two airlines in such a strange relationship? For example, I can book VS through DL on ATL-LHR but I can't book the nonstop VS MCO-LGW flight. It's all very weird. Does VS think they are too good for Skyteam?