Originally Posted by
JanoSicek
ATH-SYD RT D class on SQ, 40000 miles earned, ~2300 EUR 5.75 cpm
Routing ATH-IST-SIN-SYD with ATH-SIN on regional 772

and SIN-SYD can be routed on 380.
No matter how hard I try, return always comes back in B class, not in D. Can you specify some dates where all legs were in business?
On a separate note, same fare is available to MEL and AKL, and QR fares are just as attractive.