Moderator: Midwest, Las Vegas & Dining Buzz
Join Date: Jun 2001
Location: Chicago, Illinois
Posts: 17,976
Have done this several times and it works. Just don't forget to cancel the ticket before the flight leaves to get your money back.
As another poster said, buy a ticket for a flight that is much later in the day (or night). There should be no issue with the time, but if a TSA agent should ask you why you are at the airport so early, tell them that you are trying to go standby for an earlier flight. (There have been reports that some aggressive agents have questioned pax about it.)