Transportation to San Juan Airport

My AMA map is a little old, but here is what is on the PR day trips website:

Luiz Muñoz Marín (SJU) Airport — There is one bus route that goes to the SJU airport, but it has to be noted that luggage is not allowed on the any of the AMA buses. Only small, carry-on items are allowed on the buses. There are 3 stops on the airport 2nd level (Departure level) at terminals A,D,and E.

from SJU to Isla Verde — take 40 or 50, then transfer to 5 or 53
from SJU to Condado (Asford Avenue area) — take 40 or 50, then transfer to 53
from SJU to Old San Juan — take 40 or 50, then transfer to 5 or 53
from Isla Verde to SJU — take 5 or 53 eastbound, then transfer to 40 or 50
from Condado to SJU — take 53 eastbound, then transfer to 40 or 50
from Old San Juan to SJU — take 5 or 53, then transfer to 40 opr 50

Hope this helps!