Thanks for the Information.
LH is in most cases cheaper than Flybe, but there are some times during the week, where Flybe is cheaper, eg. Friday evening ex DUS to MAN, where LH doesn´t offer E-class on the 18 hrs service.
Another problem for Flybe is, that the German customer doesn´t know the Airline, he knows BA,LH and Air Berlin, but not Flybe.