Fly from Toronto to Hong Kong for $493 round-trip, including all taxes, on Delta.
Yes, this fare requires two connections via Minneapolis and Tokyo on the way out, Tokyo and Detroit on the way back.
We found seats departing Toronto on Tuesday, January 20, returning from Hong Kong on Tuesday, January 27. Other dates are also available for travel beginning in early fall and through the winter.
You'll also find similar fares from Canada to both Shanghai and Beijing, as seen by the fare below: Montreal to Shanghai for $568 round-trip, including all taxes.