There's a guy
with a 20 million mile balance in Qantas.
Randy has been said to have over 10mm miles himself.
So I actually don't doubt the individual in question could have 25 million miles. The skepticism is solely over flight miles. I'm told by someone who suggests that they would know that he in fact does have over 24 million miles with AA -- but that includes credit card spending...
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View from the Wing: A blog about Free Miles and Free Markets