Thanks everyone for the tips.
I have deleted cookies, and all of that, also checked out Expedia, and the others.
I think the main consideration for me, when choosing an airline, is whether I feel 'safe' I don't think there's really any logic to it, except I think it's just a feeling of familiarity with the airline, etc. Nothing more nothing less.
Despite being able to fly to Jo'burg for probably half the price of BA etc, I'm still a bit reluctant to do that.
I'll hang on a couple of more weeks, then try again.
I might try SAA, never flown them. Any opinions...?
Lufthansa have quite good prices too - I could give them a go I suppose....
Qatar also a possibility too.
In a nutshell - I suppose what is important to me, is safety/reliability, when I have a choice of airlines. Comfort isn't such a big deal, as I'm only 5ft nothing.