FlyerTalk Forums - View Single Post - Using AS Miles to upgrade DL Int'l Flight
Old Dec 20, 2010 | 5:42 am
  #4  
3Cforme
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Originally Posted by gleff
Further even using Delta miles you need to have purchaed nearly full fare ticket to be eligible to upgrade, provided space is available.
Specifically, that's a Y, B, or M fare for an intercontinental Business Elite route.
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