Originally Posted by
HeadInTheClouds
I'm like you in reverse, not able to offer any advice on KE. But for the DL codeshared AF flights, if you book the DL flight number, classes F & P are available on the flights that have La Premiere. These codes are not available on non La Premiere AF aircraft. But I did book it earlier this year (you have to call and specifically ask for the fare class), and it came with all the La Premiere benefits it should. "La Premiere" even prints out on all the Delta itinerary info (despite DL not having an F product). Sounds like you're saying that's not how it works on a KE flight.
I can say that I would have been similarly upset as the OP if I specifically booked the F fare class and was denied the benefits.
FWIW, I recall there used to be a similar thing with UA/LX that if you booked the UA code, LX would deny F lounge access at ZRH. Don't know if that's still the case though.
DL does not have any P class fares that book into La Premiere cabin on AF as DL coded P class is used for Premium Economy fares these days (along with A and G classes). DL only has fares that book into F class for AF La Premiere. You can potentially puchase an AF P fare on delta.com as part of 006 ticket, but those flights will be AF coded, not DL coded. Interestingly, the DL earnings chart on delta.com no longer even lists F class for DL coded flights (only J).