Originally Posted by
xliioper
I pretty confident you won't see DL FCM offers on KL coded flights due to the nature of these offers which reclass flights in a different DL booking class without doing a re-issue. It's possible there might be some sort of day of departure upgrade offer that does not modify booking class, but I kind of doubt it.
Hmm, I was thinking of the domestic connecting flight but hadn't considered the implication of being KL-issued.