Join Date: Oct 2000
Location: Munich, Germany
Programs: LH HON, DL FO/MM, Marriott Lifetime Platinum, Accor Lifetime Platinum, Sixt Diamond
Posts: 6,174
There is no such thing like general extended award availability for Elite Plus members.
Delta provides additional award seats in Y for their own Medallions (subclasses NF, NG, NP), but not for Elite or Elite Plus members from other FF programs.
Air France provides additional award seats in Y for their own Elite members (W class), but not for Elite or Elite Plus members from other FF programs.
KLM provides additional award seats in Y and J for their Platinum Elite members and sometimes also for their other Elite members. If Z class for J travel or M class for Y travel is still available, they will consider overbooking the original award classes (D for J travel, W for Y travel).
Also, double miles for no capacity controls only applies for travel on the airline the miles are coming from - Delta SkyMiles members can only use this benefit on DL operated flights.