FlyerTalk Forums - View Single Post - What exactly is "D" class?
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Old Jun 30, 2001 | 2:51 am
  #4  
Chiangi
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Join Date: Sep 1999
Location: New York
Posts: 3,383
It depends on airline.

D for NW is a business class inventory for both upgrade from economy and award travel.

oneworld carriers use D for their Explorer RTW business class fare on international routes. CX has even a lower business class inventory category, I.
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