FlyerTalk Forums - View Single Post - Use UA status to book Exit Row, but CO miles to upgrade?
Old Nov 9, 2010 | 10:59 pm
  #10  
sbm12
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You do not need to have your CO number in the reservation to use your CO miles to upgrade. Just call in to CO (web support to avoid call center fees) and give them the PNR or flight date/number and you can do it without all the number swapping.
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