Check this link out to see the applicable KUP / YUP fares on AA from any given city:
http://www.farecompare.com/search/yu...ier&carrier=AA
And then use either AA.com or
http://matrix.itasoftware.com to check availability. The ITA Software tool is especially useful as you can search availability to a whole bunch of cities at the same time.
And yes - this was in another thread recently, but I can't seem to find it either...