Just wondering, but why don't Flybe offer an airlink from Man-Ncl?
The answer is rail. Back in the Dan-Air / Metropolitan / Gill Air days Manchester Airport's own railway station wasn't a factor. Manchester Airport is currently without a through-train to Newcastle (connections are offered at Leeds / York). However, upon completion of the Ordsall Chord which will increase route capacity, Manchester Airport - Newcastle through-trains are set to be restored on an hourly basis. Also, Transpennine Express has new state-of-the-art high-speed trains on order for routes including this one. FlyBe would have negligible chance of hitting breakeven on a 76-seater against fast competition on this scale. In time, the MAN-GLA and MAN-EDI services will be increasingly vulnerable to this improved rail offering as well. For now, the extra distance and smaller trains means that these routes are holding their own.