Jut got offered quite a good deal on a what seems like a pretty full flight:
LHR-SEA, $288 WT to WTP
F7 A5 J4 C2 D0 R0 I0 W2 E0 T0 Y3 B0 H0 K0 M0 L0 V0 S0 N0 Q0 O0 G0
I guess Y is pretty overbooked to offer such low price on W2 10 days before the flight. I took it, now hoping for an op up to CW