Originally Posted by
qasr
It is possible you might be allowed to standby, but it is very risky to depend on it. Are you booked for the 1:40pm? You'd have a better chance if that was the case than showing up 8 hours late for the 6am.
If you have any aversion to buying a new walk up ticket, it is probably not advisable to try this.
Thanks qasr! I'm booked (have electronic ticket) for the 6:00am flight from MIA to IAD on Friday, and I don't even think that I will be able to catch the stand by flight at 1:40pm because of a very important appointment. I think I will reach the airport by 2:00pm.
Do u have any further advice?