Well I left Londonderry by road this evening far too late to drive to BHD for the 1830 to Leeds, so I was actually hoping that maybe they would be late.. Got into terminal at 1820, with checked bags, Flybe still let me on, and we got away to time. Into LBA 10 mins early. In my experience a normal performance.
BMI previous evening 1hr 20min late out of LHR for BHD. I think everyone has their own differing experiences of different carriers' punctuality.