Thanks, all. I nees to go look up some of these acronyms niw...

Yes, I forgot to note we will be flying from SFO.

The excursion is that extra one way? So, I could book SFO>Capetown and then Capetown>JNB>SFO?

Or perhaps I use the excision for a bigger flight... Like SFO>Morocco>JNB (book flight to cape town separately) and then Cape town>SFO.

It's been a while since I booked a roundtrip international flight with miles, so thanks for the help and patience?

Oh, and what's the best way to search for award availability on partner airlines, like SA? The United search engine or SA's or something else?