Christmas and New Year's Eve mxp-syd 2200€
 

Great find!

This fare is available with countless airline combos for the same price, mostly *A (SQ, LH/LX + NH, LH/LX + OZ) but also ST (KL + EY, KL + CZ) and OW (QF + KL, LH/LX + CX).

Just play around with the dates here: https://www.google.com/flights/?clie...;sc:b;sd:1;t:f

Here's one cool example, KL + EY + QF: https://www.google.com/flights/?clie...3*2.USD.249343 :)