Originally Posted by
SAN 1K
Do a dummy booking, Search at least 90 days out, stay over an entire weekend, and you may get a Z fare quote. But for business travel you'll never likely be able to book a Z fare for these same reasons.
My post was meant to suggest that the OP do that for their dates and routing as an option to compare to the upgrade instruments.
Re your point on biz travel, I routinely book Z ex-SFO to NRT, PVG and LHR with less than a month's notice without issue. Cost though is around $5K. Ouch.