Originally Posted by
headinclouds
AA RTW now enforces the transit w/o stopover as entry/exit to the continent must be same city. Adding in a segment to get a better connection was permitted in the past, but no more. From one of the very experineced agents on that desk.
That makes sense and is in the spirit of the rule as well as in the letter (a transit is defined as a single city, so AA is 100% right on this one); the OP would have to route ...SCL-LAX-HKG instead of GRU-MIA-LAX and AA will be happy. Still salvagable. OWE has always had rules that are inscrutable and at times annoying.