Originally Posted by
xkr0p
I am now United Platinum FWIW so the 1 available in PN1 should be available no?
Available fare classes: F3 A3 JN3 C3 D3 Z1 ZN1 P1 PN1 R0 RN0 IN0 I0 Y4 YN4 B4 M4 E3 U3 H2 HN2 Q2 V2 W1 S1 T1 L0 K0 G0 N1 XN0 X0
From what i've seen for YBM upgrades (from coworkers and friends):
PN = GS and 1K
RN = Plat - Silver