Well, winter flights a couple of years ago on Saturday evenings seemed to end with the 19:40 KL arrival from AMS, at least things last just a little later now!
However, I get the point, and the choice of winter sun destinations from LBA is pitiful. Only the Canary Islands are offered as a real opportunity to get some decent warmth over the winter months (and LPA stops in January, what the hell is that all about???)
Egypt, Madeira and Cyprus (together with LPA for the whole winter) are all completely viable for the number of people who travel from West Yorkshire to these destinations. The difficult part is getting tour operators to think away from the safety of MAN, where they prefer to funnel passengers in from surrounding regions.