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Old Mar 1, 2012 | 5:38 am
  #1  
fb3003
 
Join Date: May 2004
Location: Florida
Programs: DL Diamond // Marriott LT Titanium
Posts: 169
flightstats upgrade class
what is the upgrade class for business class in KLM? I want to look up the availability on flightstats website. Is it O?

I have an international flight booked on delta.com, flying B class on KLM. Want to upgrade using miles.

thanks in advance
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