Originally Posted by
gvol21
Ethical qualms aside, is this legal? Or if not legal, then at the very least, possible to do without getting in trouble? A relative of mine is flying transcon tomorrow and asked me to do the online check-in; tried to get her to sign up for AS' mileage plan but she had no interest whatsoever in doing so (nor, for that matter, for putting in another airline's #). I'm still trying to convince her of the benefits of opening a new FF account, but if that fails, then I'd sure hate to see those miles go to waste. Perhaps someone's tried this out? Just curious. Thanks!
Do not do this. The do-not-fly list likely matches names and FF numbers. You could be in real trouble and the relative may not be permitted to fly.