Data Point: Been trying to book various LATAM J class tickets that show on AS website but then are unbookable talking with AS and partner desk or the second leg LIM-SCL etc are in coach or not available. There were some really weird ones like no EZE-JFK but if you booked EZE-PDX it would show available EZE-JFK-PDX.

Then I found a SCL-GRU-BOS all in business but the website would not let me book it and the AS agent and partner desk said it was not in their system and could not be booked.

Yesterday I was able to book LAX-LIM-SCL-EZE all in J for 45K and then SCL-GRU-BOS also all in J for 45K. Will see if I can add on EZE-SCL or BOS to SFO

But the HUCA version of trying to get AS website to push it through worked.