<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by mauld:
Ok, ok I understand about the reasons for no complimentary upgrades, but what about playing a Delta form of HoKeY?? As a Platinum with lots of CO miles, I'm more interested in "how/& if" mileage upgrades on DL international flights would work. Say I wanted to do a JFK-NCE or ATL-SCL on DL, it sure would be nice to upgrade on whatever their upgradeable/HoKeY'ish fare's were using miles. Any chance of that happening, do we suppose??? 
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Here is Deltas "HoKeY" System: You can only upgrade the 3 highest Economy classes Y, B & M internationally with miles ( or SWU for DL PM's ).No exceptions, even for top tier members. In $ that means upgradebale fares starting at around $ 1200 transatlantic.