Both legs are available for separate booking on DL (85K and 45k in J). The site does not allow booking together, and won't even allow 2 separate bookings on the same PNR. My experience with traveling through China on separate PNRs is not good. I think hoping that the JFK GA checks me in all the way to HAN is risky.

FlyingBlue has the flight available for 115K miles as a single PNR.

Is there a way to book it for less (assuming mostly UR and MR points)? Is MU bookable by any Skyteam program?