A female passenger was recently asked to leave a Southwest flight prior to takeoff because airline staff considered her skirt to be too short and her top to be too revealing. The woman, who happens to be a Hooters waitress (though that’s neither here nor there), was wearing a short skirt and tanktop on a flight to Tucson (where it was well over 100 degrees) was approached by a customer service agent and told that she had to go home and change because her clothing was inappropriate. She refused and took the flight while covering herself with a blanket. The story is odd because, as it turns out, she really wasn’t wearing anything out of the ordinary.
Southwest said that it reserves the right to deny boarding to someone who is dressed inappropriately, though it’s kinda funny coming from Southwest, as their early advertisements (here and here — on their own website no less!) featured their flight attendants in hot pants and miniskirts. I guess the staff are allowed to dress that way.