Thanks to everyone for the quick replies & comments.

Here's an additional question. How current are these guides? I carry the AA timetable with me whenever I travel, but I have found that the guide is sometimes off by a few minutes to about a half hour on a lot of flights. This sometimes irritates me b/c when I am trying to talk to an AAdvantage agent to book or reschedule flights, my connecting times are off and making the reservation takes extra time , expecially for the commuter flights up and down the left coast which are often just minutes apart anyway.

Thanks.