FlyerTalk Forums - View Single Post - Visiting higher/lower cabins during a flight. What's the etiquette?
Old Jul 9, 2018, 4:42 am
  #8  
CyBeR
 
Join Date: May 2009
Location: AMS
Posts: 2,063
The etiquette (and in some places the actual law) is that you can go only down from your class of travel, save for having permission from the crew to do otherwise.

I.e., without asking the crew, you can visit your friend but he can't visit you.
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