Originally Posted by
N830MH
Well, what is RDM? What is does this mean?
RDM = Redeemable Delta Miles or ReDeemable Miles
MQM = Medallion Qualifying Miles
Delta's new scheme slashes the ability of most flyers to EARN lots of RDM's.
Delta has not said what happens to our ability to SPEND the RDM's except to say that low 25,000 "mile" domestic awards are not going away. Most people don't expect good news with the new 2015 mileage redemption charts are published this fall.
MQM's do not change. The way you earn and keep elite status does not change.
So, effectively we fly miles to get status and we get these new mystery "miles", which are just points for redemptions.