There's this fare you might consider but you have to buy by end of this month:
CX/KL/(NW). Not sure what it is in Y but it's C$4,974 in D (discounted business) and C$6,180 in A (discounted F/P). Looks like JohnAx and I will be using this. You're allowed 23k miles and only need to stop once in Europe and Asia.