This is a great deal for those residing in either Canada or San Francisco. You will have to make your own way from Vancouver to San Francisco before or after the trip depending on where you live. This deal is first reported by Next Departure. Bookable with Expedia.ca, keep in mind this may be an error fare.
The dates I have tried below works for $393 CAD, or $307 USD:
San Francisco, CA -> Auckland, NZ (Layover in Honolulu, HI, arrive 1 day later): November 7
Auckland, NZ -> Honolulu, HI: November 11, 13, 16, 18
Honolulu, HI -> Los Angeles, CA: November 22, 23, or 24
Los Angeles, CA -> Vancouver, BC (Layover in Seattle, WA): December 1
Flights are with Hawaiian Airlines and Alaska Airlines. Keep in mind Hawaiian has a 25lbs weight limit for carry-ons.