Though the multiple connections may be grueling for some, the price tag sure looks nice: Toronto to Hong Kong $699 CAD (or $643 USD) on Delta Air Lines.
Searching Delta, we found seats departing YYZ on Wednesday, October 1, returning from HKG on Monday, October 6. Flights connect via Minneapolis and Tokyo on the way out, Seattle and Minneapolis on the return. Connection cities may vary by date.
Visit our Toronto YYZ fare page for a complete look at current finds.