FlyerTalk Forums - View Single Post - Complimentary upgrades when UA's PremPlus / Polaris cabin(s) are open? (No)
Old May 5, 2017, 1:03 am
  #21  
UA_Flyer
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Join Date: Apr 2003
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In terms of op-up, there is no scientic data and just my personal experience:

I have never been op-up on oversold J flights when I am on the upper deck, but I have an excellent record being op-up from paid J to F when I am sitting in the main deck of 744 or on the 777/767 three-class aircrafts.
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