Originally Posted by
eponymous_coward
Use Avios for the HKG-RGN leg. 7.5k for Y, 15k for J. BA. supports multiple transfer partners.
Booking KA using avios gives you misconnection protection that buying a LCC ticket with cash does not. Granted , if you're stopping over >24 hrs, probably not a big deal, but just for anyone else who's connecting.