Originally Posted by
bse118
That's not really true. There are cases (e.g. some simple domestic roundtrips) where AA.com can calculate and process changes to itineraries without involving a human. I've done this a few times myself and I never purchase fully refundable fares. It will show you the fare difference and change fee before you make the change.
Many other times AA.com can't do this. I'm not sure the rhyme or reason behind which trips it can change and which it can't, but in my experience international trips and/or trips with segments on partner carriers or codeshares can't be changed online.
If the opportunity to make changes isn’t presented, there’s really no option to calling.