Originally Posted by
cawa
Correction: The Flagship lounges (while very nice) are only available if you are flying international first class. International business doesn't cut it.
Correction: AA EXP has access to Flagship when flying internationally regardless the class of service. Even Y is O.K.
You can also access Admirals Club and/or Flagship when flying certain transcons in J or F:
http://www.aa.com/i18n/utility/trans-con-access.jsp