LDY
LDY - PMI is done by the BFS based aircraft
LDY - REU is done by the DUB based aircraft
Both BFS and DUB have 1 based A320 each and no other aircraft type usually visit.
DUB-REU-LDY-REU-DUB on a Wednesday is the only Thomson aircraft operating to REU on a Wednesday so it would be unlikely if that was ever a B757 as it would mean it would have to have come from DUB, which as I have already said is a A320 base.