Please forgive me if this is a stupid question.  For an upgrade from Australia to Europe- are the miles shown on the chart one way or return?  ie from economy to business class return how many mikes do I need. I'm with lifemiles so it 35,000 or 70,000 return.  Many thanks.
	
		
			
		
		
	
				
			 
				 
						 
  
 
		 
 