Originally Posted by
zan5hin
...I want to join AAdvantage and do the platinum challenge...
...With BA and JAL not offering bonus miles I'd like to find codeshares possible for DEL-NRT, NRT-PEK and definitately for LHR-MRU and MRU-JNB...
AA codeshares, in general, are only available on flights to/from the US and connections, so you are neither going to be PLT nor earn elite bonus miles for some of the early flights mentioned above. The only AA codeshare you will probably have any use for is HKG-SFO. The rest of AA codeshares are invalid for your itinerary or do not exist.