Join Date: Feb 2008
Location: Auckland, NZ/New York, NY/ATL
Programs: DL DM MM, BIS 2.5MM, EK Gold, SQ Gold, Marriott Gold, HH Gold, OW Emerald, HY Globalist
Posts: 5,498
Go ahead and buy the K fare, but they are not going to release Z inventory to confirm that upgrade ahead of time with miles/SWUs. Not on that route.