FlyerTalk Forums - View Single Post - Upgrade and changing booking class. Milleage accrual?
Old Jan 21, 2014 | 8:07 pm
  #2  
cityflyer369
 
Join Date: Jan 2007
Location: GLA
Programs: AF/KL FB Plat 4L, VA Vel Silver, BA EC, LH M&M
Posts: 1,825
You will get the original miles. It can happen though that the system recognizes your flight as an O class flight, in which case you will have to make a retro-claim.
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