I would like to do a ICN-HKG-LHR-xJNB-DUR-JNB trip on CX/BA in First or Business. From JNB I am continuing to SEZ-MRU-BOM..etc. Given the high fares of the regular first and business class tickets, I was considering buying a OWE or (Global Explorer) ticket for this trip. Since I will have to finish my trip in ICN, what is best way to route the JNB-ICN return to make it as inexpensive as possible? Thanks in advance.