My wife is on a DFW-SFO-DFW mile run, returning this evening. We have another round trip booked for tomorrow morning, but now she's just rather fly it overnight tonight and get it over with. With Platinum status, she gets free same day stand by, but has anyone had experience if it could apply to leaving the night before instead of the next morning. I figured she might as well as at the Admiral's Club and see what they say, but wanted to see if anyone here had any knowledge on the subject. Thanks!