We are flying from UK to NYC first in April, then dropping down to WDW on the Monday. Current fares per person (there are 4 of us - 2 adult, 2 children) are £90 (so c $120) per person on a single Jet Blue flight. Is that likely to get any cheaper - or should I just book now and be done with it? Doing the international parts on BA - but need to book the internal flight down to WDW