Hey Alltech63, SXMScubaman is right about lounge access for AA going to Caribbean. First and business class between the US and Caribbean is considered a qualifying international flight for Admirals Club access (it wouldn't be for flights operated by Alaska Airlines though). All you need to gain entry is your first or biz boarding pass and ID. This is the AA link for Admirals Club access which spells it out:
https://www.aa.com/i18n/travel-info/clubs/admirals-club-access.jspMaybe you're thinking of Delta, because they do exclude Caribbean for Delta Sky Club access.
