I have recently broken my long-standing tradition of flying with Qantas and other OW partners and booked a RTW ticket with Singapore Airlines, Lufthansa and United.  My dilemma is choosing with FF program to "attach" to my booking.  I have joined UA and Lufthansa's FF programs while trying to decide.
Any suggestions regarding pros and cons of each choice? Also, does anyone know if I can change the "attached" FF details once the booking is fully paid for and ticketed?
Thanks
Geoff
	
		
			
		
		
	
				
			Any suggestions regarding pros and cons of each choice? Also, does anyone know if I can change the "attached" FF details once the booking is fully paid for and ticketed?
Thanks
Geoff
				
						
 
 