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Old Jan 23, 09, 8:27 am
  #2  
sdm1130
FlyerTalk Evangelist
 
Join Date: Oct 2006
Location: IAH
Posts: 13,531
CO does not use any upgrade instruments so your options are to use miles (domestic) or miles + a copay (Business First markets).

http://www.continental.com/web/en-US...e/default.aspx
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