Or course one problem with using Great Circle mapper to calculate distance is that QF have their own table of distances they use. Using their FF point calculator, they list some of these distances differently:
- BNE-ADL = 1008 (GC=1007)
- ADL-MEL = 400 (GC=399)
- MEL-NRT = 5080 (GC=5060)
- LAX-BNE = 7166 (GC=7161)
So unfortunately, QF would likely total the BNE-LAX-LAS-DFW-ORD-NRT-MEL-ADL-BNE as just over 22,000 miles

. Might be worth a try anyway

.
The BNE-LAX-SAN-LAX-LAS-DFW-STL-ORD-YVR-HKG-BNE rounting has a little more to play with (well its 59 miles under 22K according to GC). If I use QF's distances for the routing for which they provide, it still comes out at 21,943 miles

. I assume they get the distances for AA/CX flights from whatever that carrier has identified for the flight.