Originally Posted by
pandaperth
Your itinerary is valid, and if the booking tool allowed the first flight to be on QR, then you could no doubt book it online. An option would be to add-on say DUR-CPT at the beginning and then it could be booked online (BA would be the first carrier); similarly you could change CPT-DOH to CPT-JNB-DOH.
Are you sure? I don't think you can fly from the middle east to London/Europe if you are touching the middle east twice (if including South Africa or Mauritius). Here is the relevant rules section [4(e)3 part two] which does not allow the itinerary in question on any of these exceptions even when you, I think correctly, include the Middle East as within Europe:
For travel originating in Africa:
One of the following backtracks is permitted
3.2.1
Africa-Europe-RTW-Europe-Africa
One of the visits to Europe must be a transfer without stopover between Africa
and the previous/next continent. Travel may not include Mauritius/South Africa
3.2.2
Africa-Middle East-RTW-Middle East-Africa
One of the visits to Middle East must be a transfer without stopover between Africa and the previous/next continent.
3.2.3
Africa-Europe-RTW-Middle East-Africa or Africa-Middle East-RTW-Europe-Africa
Travel may not include any flown or surface sector Between Europe and Middle East