Old Sep 25, 06, 11:11 am
  #3  
HNL
FlyerTalk Evangelist
 
Join Date: Feb 2005
Posts: 10,831
There is noting you can do until at least 3 hours before flight time. This page on aa.com details the "Same-Day Travel Changes Program."

http://www.aa.com/content/utility/sameDayTravel.jhtml

For a $25 fee you can get a same-day standy-by confirmed over the phone, assuming space available. Alternatively you can also ask to go standby on another flight at no cost when you are at the airport.
HNL is offline