Originally Posted by
Duke787
1) They will check it all the way to RDU because it is AA ---> AA
2) There will be no bag fee charges and I will get the SA -- US baggage amount (which is 2 free bags) since it's AA ---> AA and therefore no collection followed by a -check with payment at MIA
Is that accurate?
AA will not check bags through on separate PNRs even if it is AA to AA. It's ridiculous just like the married segment nonsense you're seeing.
But as you said booking with Avios charges segment by segment anyways, can you call BA and see if they can book the flights on the same PNR? It's the same Avios cost regardless.