Edit: Cathay Pacific also operates a fifth-freedom redeye from YVR (even closer than SFO). However I imagine tickets are quite pricey.
This was the first thought that popped into my head. But yeah, Flyertalkers love to talk about it as an award, not a ticket we actually buy on a regular basis. So it's probably not cheap.
Mint would be a good choice at a more palatable price point.