Fuhgeddaboutit! If one could do this NOBODY would ever buy the outrageously priced typical business ticket. We would just buy a cheapie Q, T etc fare, smile nicely and hang out at the check-in line.

If you have ff miles, then this is a great way to save mucho $$$$. BTW you would probably have the same problem on your return (you did not specify dates, fare class etc). Oh yes and good luck.

MisterNice