Hi,
One of my friends booked ATL-STT (Saint Thomas US Virgin Island) and STT-ATL return and added ATL-CUN for free per Alaska stopover rule...
I'm trying to do something similar but I am based in NY. I tried JFK-STT / STT-JFK-CUN/LAX/ORD/DEN. All of them gave me an error message of 1580. Am I missing something in the rule?