Originally Posted by
xliioper
Generally speaking, if you purchase off the delta.com website, partner flights will be DL marketed (and will show as such in e-Receipts).
For cash tickets, yes, but award tickets almost always have the operating carrier's flight number (as I know you know, but repeating for the benefit of the thread)
EDIT: ok you beat me to the punch while I was typing this out
And OP's tickets are indeed KE-marketed award tickets:
Originally Posted by
evergrn
I’m flying Korean metal, award tix via DL app.
Originally Posted by
evergrn
DL app only shows KE flight number.