Originally Posted by
RITZOL
Good day. Begin my mileage run tomorrow ATL/JNB/AMS/ATL - with a 5 hour layover in JNB. Question: Do you have to clear customs and immigration in JNB, and what do you say? Does everyone understand the mileage run concept??!!
If you want to stay airside, then you can - just follow the international connections signs at the airport and noted here in the wiki. No need to say anything, just present your passport to the transit immigration officer...