I am thinking about DONE3 Ex JNB and need some suggestions on following:

1) Routing to maximize mileage
2) Suggest a FF program to credit miles - I have been exclusively flying *A (I have no affiliation with any OW program
3) Constraints: I need to go to ICN and LHR / and because of visa issue, I cannot travel to the US.

I will also come up with my routing thoughts but in the meantime, I'd appreciate your expert's opinions.


Nevermind.... this has to be DONE4 because there is no way of traveling back to JNB without going via Europe. )