Delta gives Medallion members the opportunity to earn lifetime status based on the cumulative number of Medallion Qualifying Miles (MQMs) earned over a member’s lifetime. This even includes MQMs earned through co-branded credit cards. Up until now it has only been possible to earn lifetime Silver, Gold, or Platinum Medallion status, while it’s now possible to earn lifetime Diamond Medallion status. Here’s how the Delta SkyMiles lifetime status program now works: (onemileatatime.com) 更多...