BHX
compton3bravo
As others have said, the increase is for the six week school holiday period when the ZB/WW routes are duplicated.
As soon as Baby end in September the Monarch increases still fall short of the number of seats offered by Baby on AGP, ALC, PMI, FAO & FCO.
Nice could well be up a bit as the Baby was due to reduce at the end of September.
Monarch have yet to increase AGP & ALC in winter either to cover the Baby flights which usually operate, so they haven't gone totally over the top.