Originally Posted by
johndoe123
Most of the IT systems won't detect birth date mismatch. My guess is flight operations and checkin is fairly detached from FF programs (marketing). Infact, I'm not quite sure it means anything. I noticed the other day mine has said Jan 1st, 1900 or something similar in my profile for likely years.
Reports of being busted generally occur when a flight operations occurs that is impossible or extremely unlikely -- IE: two people flying at once. It is more behavioral analysis than anything. Two people, especially living in the same city and never flying at once will probably go unnoticed.
I don't recommend it though.
Actually, UA (also DL, potentially more to follow) are now forcing the FFP profile name to match your Secure Flight info. So situations like the OP's, with different middle names, will be harder to continue successfully
http://www.flyertalk.com/forum/unite...formation.html