Will I have access to the PCs at SEA and CLE in this situation:

I am flying on a reward ticket in FC from SEA to CLE and in BF from CLE to London. I assume I will have access in CLE because I am departing in BF (I assume they don't exclude reward tickets?). But in SEA, will I have access because I am on BF on the same day?

I am also NW Plat, does that give access?

Thanks!
A Moose