Originally Posted by anabolism

Yes, JNB is only about $300 USD cheaper than NRT. Depending on where you want to go, ex-JNB/CPT usually means an extra continent, so there's that to consider.

You can start by flying JNB-HKG, JNB-DOH, or JNB-SYD. You can't finish by going U.S. to JNB in one segment, though. You'll have to connect in Europe or South America.