I'm looking to book a trip to South Africa from LON. I'd be meeting friends in JNB on August 13th but am flexible to arrive several days early (I can fly any day from August 4th). I'm planning on including a trip from JNB - VFA on August 18 and LVI - JNB on August 20 but can book this separately or I can skip this entirely. I'll ideally be in Cape Town from the evening of August 20th until I return to London in time for work on August 27th (I could arrive as late as mid-morning).
BA have miles availability for LHR - JNB in economy on August 11th but one way flights from CPT/JNB/DUB - LHR seem to be very expensive.
Any ideas? The very best I'm getting is around £800 but the itinerary is rough.