I had asked this in another forum, with no feedback. Do they have a good program for someone traveling though Central and South America? I hear they are soon to join oneworld. If they do offer unlimited free upgrades (for silver, gold, & Infinite) on all their flights internationally, they would be a better option then the US airlines. This includes companion upgrades and a five day window for Infinite.
In addition, their award chart shows USA-Japan FC at 120,000 miles on JAL and FC USA-Korea 110,000 miles on Asiana. There is loung access for several different lounges including; American Airlines Admiral Club Lounges, Iberia VIP Lounges, and Lufthansa Executive Lounge at Frankfurt etc. including one intersting one, "Havana Airport Lounge de Ecaesa". The mexican site also shows that Infinite