FlyerTalk Forums - View Single Post - Upgrade availability with miles in months prior to flight
Old Jan 22, 2019, 8:50 am
  #3  
tbaiyun
 
Join Date: Apr 2016
Location: YOW
Programs: Flying Blue Plat, Accor Gold
Posts: 391
You will need an opening O class to do mileage upgrades.
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