Originally Posted by
FlyerJ
If I recall correctly, upgrade spend on both United and Delta do count towards your qualifying Q$ spend.
DL counts. UA does not.
Originally Posted by
FlyerJ
I think you also get a class-if-service bump in your earn rate with both, so you earn Q miles (I think) as though you’d purchased J.
Not sure about DL. But it is definitely not for UA.
(Note - the industry's practice is no for class-of-service bump.)