It used to allow access for Business Class but I believe that has changed. Best advice was to check at the club. Also some clubs provide access for a day as well for a fee.
Ryan, feel free to check with the club. Also, I believe that the entry is based on either having an annual club purchase via AAdvantage card, or being an AA Platinum level flyer, etc. It's not based on the ticket itself. Please feel free to check with the Admirals Club rep. Thank you.
I believe they do if it's Flagship business class (non-Canada and Mexico).
Thanks! Your answer is awaiting moderation.