I think you will find plenty of 747 flights between PTP & FDF in the Cariibean. They will be part of a CDG-FDF-PTP-CDG (or vv.) loop, mostly by a tour outfit like Corsair.
The normal service between PTP and FDF will be by ATR 42/72, with a couple of A320 each day. Distance is 200 km./120 mi.