Original Member and FlyerTalk Evangelist
Join Date: May 1998
Location: Kansas City, MO, USA
Programs: DL PM/MM, AA ExPlat, Hyatt Glob, HH Dia, National ECE, Hertz PC
Posts: 16,619
I'm not sure about D class, but A class is being used by many airlines for discount first class, typically at the same price as a full fare coach ticket.