Originally Posted by
econ
I've seen the Y to J upgrade price <$300 to/from SFO at times. The upgrade price is normally cheaper than the fare delta from Y to J, although no LPs using that method.
Same, on JFK-LAX where the J cabin has been fairly open, I’ve seen the upgrade price as low as roughly $200, on flights I’ve still scored a complimentary elite upgrade, and $300 on flights where I did not.