Originally Posted by
Kacee
If you want to use a GPU, yes. If you want to use miles, there is no minimum fare class, but a hefty co-pay for lower fare classes.
Note that LHR-SFO is a tough upgrade and you're not likely to see advance R.
Yeah this was a worry. I was seeing a lot of P>9, PN=0, R=0 which I figured meant loads of GS upgrades are pending (or existing upgrades from Y/B?). Sadly I don't think I'm close to hitting GS for next year.