Originally Posted by
bennos
I had no problems accessing the HEL lounge as a DL elite on an AF coded flight (ticket issued by DL, granted this was over a year ago). My oneworld boarding pass even had SKYPRIORITY printed on it
I also got DL miles from the flight, but that might have been a fluke.
It wasn't a fluke. This is not AF-AY codeshare but rather HARD BLOCK. AF sells their inventory for these AY flights as they please.