I am trying to piece together a *A award ticket from JNB-CLE this July 2nd. I've got plenty of miles. I need to be home by the 3rd as I need to be someplace on the 4th. One option is JNB-JFK-LGA-CLE in Y. Tough to sit in Y for 15.5 hrs, even if it only costs 40k. That said, my preference would be in J. I've have found JNB-GRU for 45k. Adding the likes of GRU-PTY is 40k if purchased separately. When I try to combine I get 85k. Not what I would expect considering a similar itinerary via Europe kicks back down to 60k. I have not been able to find any availability via Europe (did on the outbound for 60k). Question is: are there limitations for Africa to USA via South America that prohibit this type of routing? Any tip how to get around this <assumed> limitation?