I'm trying out KVS for the first time today and I'm a bit confused. There are flights that show up as available on AA.com, but do not show up on KVS.

For example, I am looking for BOS-BCN on 5/7/14.

KVS shows availability on IB (BOS-MAD-BCN), whereas AA.com shows availability on AA (BOS-MIA-BCN). Although AA.com only shows availability in the standard award (no saver awards).