Upto September 30, 2011, those who have never transferred AMEX MRs to Delta Airlines can transfer a single batch of 100K (or more) AMEX MR points to Delta Skymiles account and get 50% bonus (normal transfer is 1:1) and also 25K bonus MQMs. This 25K MQMs will immediately bump up non-medallions to Silver Medallion status (usually takes 24 hours for status to be updated).
Register for the promo using this link:
Please wait atleast 24 hours after registering before you initiate the transfer of AMEX points to DL. This is because DL’s system is known to take 24 hours for tagging registered accounts with this promotion.
Although, DL miles offers some very attractive redemptions on its partners like AF’s A380 business class award from IAD, YUL and JFK (availability is great too!). Korean Air also offers some great seats in business from most of the North American hubs like LAX, SFO, ORD, SEA, YYZ, IAD, JFK and ATL. Note that Korean Air has some extensive blackout dates.